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Nanofiber based adhesives in medical fied - key players, innovators and industry analysis
1. Nano-fiber based Adhesion in
Knowledge Services
Medical Field
Nano-fiber based Adhesion in
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Samir Raiyani
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Phone: +1-650-425-6772
Fax: +1-866-690-7517
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3. Introduction
• Nanoscience is an emerging area with a lot of potential. Economists and scientists
have equated that technology enabled nanoscience and developments might as
well create an economy similar to the petro-economy of this generation.
• Global medical market for nanotechnology applications was worth $1.7 billion in
2007 and is estimated to be nearly $9.4 billion in 2018.
• Nano-fiber based adhesion is expected to play a vital role in medical field in near
future. Nano-fiber adhesion based devices are expected to play a vital role in drug
delivery, wound repair, implants etc.
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4. HAWT Taxonomy
A detailed taxonomy is
presented covering
methods of
manufacture,
applications among
others
• See the detailed HWAT taxonomy here
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5. Classification
• Different classes related to Nanotechnology and related adhesion are identified
S.NO IPC Classification Description
1 F03D Wind motors
2 F16C Shafts; flexible shafts; elements of crankshaft mechanisms; rotary bodies other than gearing elements; bearings
3 F16H gearing
4 F03B Machines or engines for liquids
5 H02K Dynamo-electric machines
6 H02P Control or regulation of electric motors, generators, or dynamo-electric converters; controlling transformers, reactors or choke coils
7 H02M Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation
8 H02J Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy
9 G06F Electric digital data processing
10 G05F Systems for regulating electric or magnetic variables
11 H02H Emergency protective circuit arrangements
• See the detailed classifications here
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6. Control Patents
• Highly relevant patents are used for extracting keywords and ensuring the
quality of the search query
Publication Date
S. No. Patent/Publication No. Assignee/Applicant Title
(mm/dd/yyyy)
1 US6278211 08/02/01 Sweo Edwin Brushless doubly-fed induction machines employing dual cage rotors
2 US6954004 10/11/05 Spellman High Voltage Electron Doubly fed induction machine
3 US7411309 08/12/08 Xantrex Technology Control system for doubly fed induction generator
4 US7485980 02/03/09 Hitachi Power converter for doubly-fed power generator system
5 US7800243 09/21/10 Vestas Wind Systems Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
6 US7830127 11/09/10 Wind to Power System Doubly-controlled asynchronous generator
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7. Classifications
• Different relevant classes related to Medical field are identified.
• These classes are used in searches with keywords
S.
No. IPC/ECLA Definition
1 F03D9/00 Machines or engines for liquids; wind, spring, or weight motors; producing
mechanical power or a reactive propulsive thrust, not otherwise provided
for / Wind motors / Adaptations of wind motors for special use;
Combination of wind motors with apparatus driven thereby (aspects
predominantly concerning driven apparatus)
2 F03D9/00C Machines or engines for liquids; wind, spring, or weight motors; producing
mechanical power or a reactive propulsive thrust, not otherwise provided
for / Wind motors / Adaptations of wind motors for special use;
Combination of wind motors with apparatus driven thereby (aspects
predominantly concerning driven apparatus) / The apparatus being an
electrical generator
3 H02J3/38 Generation, conversion, or distribution of electric power / Circuit
arrangements or systems for supplying or distributing electric power;
systems for storing electric energy / Circuit arrangements for ac mains or
ac distribution networks / Arrangements for parallely feeding a single
network by two or more generators, converters or transformers
4 H02K17/42 Generation, conversion, or distribution of electric power / Dynamo-electric
machines / Asynchronous induction motors; Asynchronous induction
generators /Asynchronous induction generators
5 H02P9/00 Generation, conversion, or distribution of electric power / Control or
regulation of electric motors, generators, or dynamo-electric converters;
controlling transformers, reactors or choke coils / Arrangements for
controlling electric generators for the purpose of obtaining a
desired output
S.
No. US Class Definition
Prime-mover dynamo plants / electric control / Fluid-current motors
1 290/044 / Wind
2 290/055 Prime-mover dynamo plants / Fluid-current motors / Wind
3 318/727 Electricity: motive power systems / Induction motor systems
Electricity: single generator systems / Generator control / Induction
4 322/047 generator
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8. Search Concepts
• Concepts used to search patent literature
Concept Concept Concept
S. No.
1 2 3
Doubly Fed Induction Generator
1 doubly fed induction generator
2 double output asynchronous machines
3 dual fed systems
4 dual feed
5 dual ouput
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9. Keyword Search
Database: THOMSON INNOVATION
Patent Coverage: US EP WO JP DE GB FR
S.No Concept Scope Search String No. of Hits
1 Doubly-fed Induction Generator Keywords Claims, Title, Abstract (((((doubl*3 OR dual*3 OR two) ADJ3 (power*2 OR output*4 OR control*4 OR fed OR feed*3)) NEAR5 (induction OR asynchronous)) NEAR5 (generat*3 OR machine*1 OR dynamo*1)) OR dfig or doig) 864
2 Doubly-fed Induction Generator Keywords Full Spec. (((((doubl*3 OR dual*3 OR two) ADJ3 (power*2 OR output*1 OR control*4 OR fed OR feed*3)) NEAR5 (generat*3 OR machine*1 OR dynamo*1))) OR dfig or doig)
-
3 Induction Machine Classes US, IPC and ECLA classes ((318/727 OR 322/047) OR (H02K001742))
-
4 Broad Classes of Generators US, IPC and ECLA classes ((290/044 OR 290/055) OR (F03D000900C OR H02J000338 OR F03D0009* OR H02P0009*))
-
5 Combined Query 108
- 2 AND 3
6 Combined Query 757
- 2 AND 4
7 French Keywords Claims, Title, Abstract ((((doubl*3 OR dual*3OR ADJ two OR deux) NEAR4 (nourris OR feed*3 OR puissance OR sortie*1 OR contrôle*1)) NEAR4 (induction OR asynchrone*1) NEAR4 (générateur*1 OR generator*1 OR machine*1 OR dynamo*1)) OR dfig or doig) 257
8 German Keywords Claims, Title, Abstract (((((doppel*1 OR dual OR two OR zwei) ADJ3 (Ausgang OR Ausgänge OR Kontroll* OR control*4 OR gesteuert OR Macht OR feed*1 OR gefüttert OR gespeiste*1)) OR (doppeltgefüttert OR doppeltgespeiste*1)) NEAR4 (((Induktion OR asynchronen) NEAR4 (generator*2 302
OR Maschine*1 OR dynamo*1)) OR (induktion?mas chinen OR induktion?generatoren OR Asynchronmaschine OR Asynchrongenerator))) OR dfig)
9 Doubly-fed Induction Generator Specific Keywords Full Spec. (((((((doubl*3 OR dual*3) ADJ3 (power*2 OR output*4 OR control*4 OR fed OR feed*3))) NEAR5 (generat*3 OR machine*1 OR dynamo*1))) SAME wind) OR (dfig SAME wind)) 1358
10 Combined Query 1807 (916 Unique Families)
- 1 OR 2 OR 3 OR 4 OR 5 OR 6
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10. Patent Analysis
• Problem solution approach enables to map different problems and the
available solutions
• Sample Patent Analysis
Publication Date Doclera Analysis
S. No Patent/Publication No. Assignee / Applicant Title
(mm/dd/yyyy) Problem Solution
Method of and
apparatus for operating
The short-circuit-like currents in the case of transient mains voltage changes lead to a
a double-fed
1 US20100117605 05/13/10 Woodward corresponding air gap torque which loads the drive train and transmission lines can damages or The method presents that the stator connecting with the network and the rotor with a converter. The converter is formed to set a reference value of an electrical amplitude in the rotor, by which a reference value of the electrical amplitude is setted in the rotor after attaining a transient mains voltage change, such that the rotor flux approaches the stator flux.
asynchronous machine
reduces the drive train and power system equipments.
in the event of transient
mains voltage changes
Variable speed wind
The DFIG system has poor damping of oscillations within the flux dynamics due to cross
turbine with doubly-fed
coupling between active and reactive currents, which makes the system potentially unstable A comprensation block is arranged, which feeds a compensation control output to the rotor of the generator. The computation unit computes the control output during operation of the turbine to compensate partly for dependencies on a rotor angular speed of locations of poles of a generator transfer function, so that the transfer function is made independent of variations in the speed during operation of the turbine which
2 US20100045040 02/25/10 Vestas Wind Systems induction generator
under certain circumstances and complicates the work of the rotor current controller. These eliminates the osicllations and increases the efficinecy of the wind turbine.
compensated for
oscillations ca damage the drive train mechanisms.
varying rotor speed
Current limitation for a Abnormal currents can damage the widings in the doubly- fed induction gnerator. Cntrolling
The method involves delivering or receiving of a maximum permissible reference value of an active power during an operation of a double-fed asynchronous machine, where predetermined active power and reactive power reference values are limited to a calculated maximum permissible active and reactive power reference values, and hence ensures reliable regulated effect and reactive power without affecting
3 US20090267572 10/29/09 Woodward double-fed these currents with the subordinate current controllers cannot be an efficient way to extract the
the power adjustment, the rotor is electrically connected to a pulse-controlled inverter by slip rings with a static frequency changer, and thus a tension with variable amplitude and frequency is imposed in the rotor.
asynchronous machine maximum amount of active power.
Method and system of
control of the converter
of an electricity
Double-fed asynchronous generators are very sensitive to the faults that may arise in the
Universidad Publica De generation facility During the event of a voltage sag occurring, the converter imposes a new setpoint current which is the result of adding to the previous setpoint current a new term, called demagnetizing current, It is is proportional to a value of free flow of a generator stator. A difference between a value of a magnetic flow in the stator of the generator and a value of a stator flow associated to a direct component of a stator voltage is
4 US20090008944 01/08/09 electricity network, such as voltage sags. During the sag conditions the current which appears
Navarra connected to an estimated. A value of a preset calculated difference is multiplied by a factor for producing the demagnetizing current.
in said converter may reach very high values, and may even destroy it.
electricity network in
the presence of voltage
sags in said network
Variable speed wind
a) The active switching of the semiconductors of the grid side converter injects undesirable high
turbine having an
frequency harmonics to the grid. Providing the way that power is only delivered to the grid through the stator of the doubly fed induction generator, avoiding undesired harmonic distortion.
5 US7355295 04/08/08 Ingeteam Energy exciter machine and a
b) The use of power electronic converters (4) connected to the grid (9) causes harmonic Grid Flux Orientation (GFO) is used to accurately control the power injected to the grid. An advantage of this control system is that it does not depend on machine parameters, which may vary significantly, and theoretical machine models, avoiding the use of additional adjusting loops and achieving a better power quality fed into the utility grid.
power converter not
distortion of the network voltage.
connected to the grid
Frequency converter for
a double-fed
Optislip circuit with a resistor is used when speed is above synchronous speed, results in
asynchronous generator Providing a back-to-back converter whic contains the inverter circuit has direct current (DC) inputs , DC outputs, and a rotor-rectifier connected to a rotor of a dual feed asynchronous generator. A mains inverter is connected to a power grid, and an intermediate circuit connects one of the DC inputs with the DC outputs. The intermediate circuit has a semiconductor switch between the DC outputs, an intermediate
6 US20080203978 08/28/08 Semikron heating the resistor and thus the generator leads to limitation of operation in supersynchronous
with variable power circuit condenser between the DC inputs, and a diode provided between the semiconductor switch and the condenser. Thus the sysem is allowed for any speed of wind and reduces the tower fluctuations.
range which results tower fluctions.
output and method for
its operation
During the ground faults, excess currents is induced in the secondary windings and flows into
Power converter for
power converter connected o secondar side and may danage the power converter. Conventional The generator provided with a excitation power converter connected to secondary windings of a doubly-fed generator via impedance e.g. reactor, and a diode rectifier connected in parallel to the second windings of the doubly-fed generator via another impedance. A direct current link of the rectifier is connected in parallel to a DC link of the converter. A controller outputs an on-command to a power semiconductor
7 US20070210651 09/13/07 Hitachi doubly-fed power
methos of incresing the capacity of the power cnverter increases system cost , degrade the switching element of the converter if a value of current flowing in the power semiconductor switching element is a predetermined value or larger.
generator system
system and takes time to activate the system to supply power again.
System and method of Wind turbines with double fed induction generators are sensitive to grid faults.Conventional
The protection system has controlled impedance devices.Impedanc e device has bidirectional semiconductors such triac, assembly of thyristors or anti-parallel thyristors. Each of the controlled impedance devices is coupled between a respective phase of a stator winding of a double fed induction generator and a respective phase of a grid side converter. The protection system also includes a controller configured for
8 US20070132248 06/14/07 General Electric operating double fed methods are not effective to reduce the shaft stress during grid faults and slow response and
coupling and decoupling impedance in one or more of the controlled impedance devices in response to changes in utility grid voltage and a utility grid current. High impedance is offered to the grid during network faults to isolate the dual fed wind turbine generator.
induction generators using dynamic vltage restoreer (DVR) is cost expensive.
Control and protection A short-circuit in the grid causes the generator to feed high stator-currents into the short-circuit
9 US20060192390 08/31/06 Gamesa Innovation of a doubly-fed induction and the rotor-currents increase very rapidly which cause damage to the power-electronic The converter is provided with a clamping unit which is triggered from a non-operation state to an operation state, during detection of over-current in the rotor windings. The clamping unit comprises passive voltage-dependent resistor element for providing a clamping voltage over the rotor windings when the clamping unit is triggered.
generator system components of the converter connecting the rotor windings with the rotor-inverter.
Controlling the double fed machines on the basis of inveter control to implement the targets set
Method for controlling A method is provided to use a standard scalar-controlled frequency converter for machine control. A frequency reference for the inverter with a control circuit, and reactive power reference are set for the machine. An rotor current compensation reference is set based on reactive power reference and reactive power. A scalar-controlled inverter is controlled for producing voltage for the rotor of the machine, based on
10 US20050189896 09/01/05 ABB Research for the machine, this model is extremel y complicated and includes numerous parameters that
doubly-fed machine the set frequency reference and rotor current compensation reference.
are often to be determined.
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11. Product Analysis
• Few sample products in development and already being produced are
identified and analyzed.
S. No. Company Product Specifications
1 Vestas V80 Rated Power: 2.0 MW, Frequency: 50 Hz/60 Hz, Number of Poles: 4-pole, Operating Temperature: -30°C to 40°
2 Vestas V90 Rated Power: 1.8/2.0 MW, Frequency : 50 Hz/60 Hz, Number of Poles : 4-pole(50 Hz)/6-pole(60 Hz), Operating Temperature: -30°C to 40°
3 Vestas V90 Offshore Rated Power: 3.0 MW, Frequency: 50 Hz/60 Hz, Number of Poles : 4-pole, Operating Temperature: -30°C to 40°
Rated Power: 2.0 MW, Rated Voltage: 690V, Rated Current: 1670A, Frequency: 50Hz, Number of Poles : 4-pole, Rotor Rated Voltage: 1840V, Rotor Rated Current 670A, Rated Speed: 1660rpm; Power Speed Range: 520-1950 rpm, Insulation Class: H, Protection
4 North Heavy Company 2 MW DFIG
Class: IP54, Motor Temperature Rise =<95K
Rated Voltage: 690 V, Frequency: 50 Hz, Number of Poles: 4, Rotational Speed: 900:1,900 rpm (rated 1,680 rpm) (50Hz); Rated Stator Current: 1,500 A @ 690 V, Protection Class: IP 54, Power Factor(standard): 0.98 CAP - 0.96 IND at partial loads and 1 at nominal
5 Gamesa G90
power, Power Factor(Optional): 0.95 CAP - 0.95 IND throughout the power range
6 Nordex N80 Rated Power: 2.5 MW, Rated Voltage: 690V, Frequency: 50/60Hz, Cooling Systems: liquid/air
7 Nordex N90 Rated Power: 2.5 MW, Rated Voltage: 690V, Frequency: 50/60Hz, Cooling Systems: liquid/air
8 Nordex N100 Rated Power: 2.4 MW, Rated Voltage: 690V, Frequency: 50/60Hz, Cooling Systems: liquid/air
9 Nordex N117 Rated Power: 2.5 MW, Rated Voltage: 690V, Frequency: 50/60Hz, Cooling Systems: liquid/air
10 Converteam DFIG NA
Rated Power: 1550KW, Rated Voltage: 690V, Rated Speed: 1755 r/min, Speed Range: 975~1970 r/min, Number of Poles: 4-pole, Stator Rated Voltage: 690V±10%, Stator Rated Current: 1115A; Rotor Rated Voltage: 320V, Rotor Rated Current: 430A, W inding
11 Xian Geoho Energy Technology 1.5MW DFIG
Connection: Y / Y, Power Factor: 0.95(Lead) ~ 0.95Lag, Protection Class: IP54, Insulation Class: H, W ork Mode: S1, Installation ModeI: M B3, Cooling Mode: Air cooling, W eight: 6950kg
12 Tecowestinghouse TW450XX (0.5-1 KW) Rated Power: 0.5 -1 KW, Rated Voltage: 460/ 575/ 690 V, Frequency: 50/ 60 Hz, Number of Poles: 4/6, Ambient Temp.(°C): -40 to 50, Speed Range (% of Synch. Speed): 68% to 134%, Power Factor (Leading): -0.90 to +0.90 , Insulation Class: H/F, Efficiency: >= 96%
13 Tecowestinghouse TW500XX (1-2 KW) Rated Power: 1-2 kW, Rated Voltage: 460/ 575/ 690 V, Frequency: 50/ 60 Hz, Number of Poles: 4/6, Ambient Temp.(°C): -40 to 50; Speed Range (% of Synch. Speed): 68 to 134%, Power Factor(Leading): -0.90 to +0.90, Insulation Class: H/F, Efficiency: >= 96%
14 Tecowestinghouse TW560XX (2-3 KW) Rated Power: 2-3kW, Rated Voltage: 460/ 575/ 690 V, Frequency: 50/ 60 Hz, Number of Poles: 4/6, Ambient Temp(°C): -40 to 50, Speed Range(% of Synch. Speed): 68 to 134%, Power Factor(Leading): -0.90 to +0.90, Insulation Class: H/F, Efficiency: >= 96%.
Rated Power: 1.5MW, Rated Voltage: 690 V, Frequency: 50 Hz, Number of Poles: 4, Rotational Speed: 900:1,900 rpm(rated 1,680 rpm) (50Hz), Rated Stator Current: 1,500 A @ 690 V, Protection Class: IP54, Power Factor(standard): 0.98 CAP - 0.96 IND at partial loads
15 Acciona AW1500
and 1 at nominal power, Power factor(optional): 0.95 CAP - 0.95 IND throughout the power range
Rated Power: 3.0MW, Rated Voltage: 690 V, Frequency: 50 Hz, Number of Poles: 4, Rotational Speed: 900:1,900 rpm(rated 1,680 rpm) (50Hz), Rated Stator Current: 1,500 A @ 690 V, Protection Class: IP54, Power Factor(standard): 0.98 CAP - 0.96 IND at partial loads
16 Acciona AW3000
and 1 at nominal power, Power Factor (optional): 0.95 CAP - 0.95 IND throughout the power range
17 General Electric GE 1.5/2.5MW Rated Power: 1.5/2.5 MW, Frequency(Hz): 50/60
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12. Insights: Major Players
• University of California, Nanosys,Inc, 3M Innovative Properties are the major
players in Nano-Fiber based adhesion in Medical field.
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13. Insights: Key Patents
• Key patents in the field are held by Nanosys,Inc.
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14. Insights: Year wise IP activity
• Year wise IP activity based on priority years
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15. Insights: Year wise IP activity
• Year wise IP activity based on publication years
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17. Insights: Others
• Most of the patents are held by universities, medical research institutions with
few nanotechnology based companies and FMCG companies showing interest.
• Most patents are regarding application of nano-fiber adhesion in medical
applications, areas of applications and methods of usage.
• Launched products and products in the pipeline are mostly by special purpose
foundations/companies like which have been established by companies which
have collaborations with universities specifically for utilizing nano-fiber adhesion.
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18. Like this presentation?
This is only a sample report with brief analysis. Purchase the complete
report here. Price: $999
Dolcera can provide a comprehensive report customized to your needs
Buy the customized report from Dolcera
Patent Analytics Services Market Research Services Purchase Patent Dashboard
Patent Landscape Services Dolcera Processes Industry Focus
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Samir Raiyani
Email: info@dolcera.com
Phone: +1-650-425-6772
Fax: +1-866-690-7517
info@dolcera.com Nano-fiber based Adhesion in 18
Medical Field