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For the Inventor, By the Inventor

Yokohama, Japan

Takakazu Yamamoto

This inventor holds 21 USPTO granted patents and 2 published patent applications and 3 EPO patents, primarily in Polymer Chemistry. Top assignees: Tokyo Institute of Technology, Panasonic Corporation, Japan Science and Technology Agency. Active years: 1985-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takakazu Yamamoto. Retrieved from https://idiyas.com/inventor/takakazu-yamamoto

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 21 

% Patents Active = 81.0

 

Average Co-Inventor Count = 2.0

ph-index = 5

Forward Citations = 197(Granted Patents)


Location History:

  • Midori-ku, Yokohama-shi, Kanagawa, JP (1993 - 1996)
  • Yokohama-shi, Kanagawa-ken, JP (1996)
  • Yokohama, JP (1985 - 2006)
  • Kanagawa, JP (2008 - 2017)

Company Filing History:

goldMedal10 out of 591 
 
Tokyo Institute of Technology
 patents
silverMedal3 out of 16,454 
 
Panasonic Corporation
 patents
bronzeMedal1 out of 1,329 
 
Japan Science and Technology Agency
 patents
4. 1 out of 29 
 
Jfe Chemical Corporation
 patents
5. 1 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents
6. 1 out of 1,235 
 
Nissan Chemical Industries Limited
 patents
7. 1 out of 8,267 
 
Tdk Corporation
 patents
8. 1 out of 1,145 
 
Yoshida Kogyo K.k.
 patents
9. 1 out of 58 
 
Yuasa Battery Co., Ltd.
 patents
10. 1 out of 38 
 
Yuasa Corporation
 patents
11. 3 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1985-2017

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Areas of Expertise:
Electrode
Electricity Storage
Polymer Material
Electrochemical Element
Accumulator Device
Solid Polymer Electrolyte
Electrochromic Copolymers
Poly(quinone)
Poly(alkylpyridine-2,5-diyl)
Conductive Resin
Lead Acid Battery
Polymeric Compound
21 patents (USPTO):Explore Patents
1. 9640335 - Electrode and electricity storage device (2017-05-02),
2. 8945769 - Accumulator material and accumulator device (2015-02-03),
3. 8481674 - Polymer, semiconductor film, electrode, electrode active material, electrochemical element and electricity storage device (2013-07-09),
4. 7462683 - Dihalide, polymer compound and method for producing the same (2008-12-09),
5. 7138484 - Method for producing polymerized hydrocarbon (2006-11-21),
6. 6930166 - Polymeric compound (2005-08-16),
7. 6197923 - Polymers, method of producing the same and use of the same (2001-03-06),
8. 5585454 - Poly(quinone) and preparation and use of same (1996-12-17),
9. 5561206 - Electrochromic copolymers including vinyl alcohol or vinyl acetate units (1996-10-01),
10. 5548048 - Process for manufacturing alkyl-substituted poly (2,2'-diyl) (1996-08-20),
11. 5540999 - EL element using polythiophene (1996-07-30),
12. 5475082 - Use of poly(alkylpyridine-2,5-diyl) (1995-12-12),
13. 5437804 - Solid polymer electrolyte (1995-08-01),
14. 5436316 - Poly(alkylpyridine-2,5-diyl) and preparation thereof (1995-07-25),
15. 5424381 - Alkyl-substituted poly(2,2'-bipyridine-5,5'-diyl) and use thereof (1995-06-13),

Title: Innovations by Takakazu Yamamoto: A Pioneer in Electricity Storage Devices

Introduction: Takakazu Yamamoto is a notable inventor based in Yokohama, Japan. With an impressive portfolio of 21 patents, he has made significant contributions to the field of electricity storage technology. His work demonstrates a commitment to innovative solutions that enhance the performance and efficiency of energy storage devices.

Latest Patents: Among his latest inventions, Takakazu Yamamoto has developed advanced electrodes and electricity storage devices. One notable patent includes an electrode characterized by an electrically conductive support and an active material layer. This layer integrates an electrode active material featuring a tetrachalcogenofulvalene structure. Additionally, the invention details an electricity storage device comprising a positive and a negative electrode, utilizing a polymerization product with similar structural properties as a primary component of its energy storage material.

Career Highlights: Throughout his career, Takakazu Yamamoto has been affiliated with prestigious institutions, including the Tokyo Institute of Technology. His work has been instrumental in advancing the understanding and applications of electricity storage technologies. The inventions he has developed are at the forefront of innovation, contributing to better energy solutions in various sectors.

Collaborations: Takakazu has worked alongside esteemed colleagues such as Takaki Kanbara and Hiroki Fukumoto. These collaborations have allowed for the exchange of ideas and have fostered advancements in the field of energy storage.

Conclusion: Takakazu Yamamoto continues to be a leading force in the innovation of electricity storage devices. With a substantial number of patents and impactful collaborations, he is paving the way for future advancements that promise to enhance the efficiency and effectiveness of energy storage technologies. His contributions are not only significant but also serve as an inspiration for future inventors in the field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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