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For the Inventor, By the Inventor

Anjo, Japan

Masaya Kawasumi

This inventor holds 19 USPTO granted patents and 2 published patent applications, primarily in Polymer Electrolytes. Top assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha. Active years: 1988-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaya Kawasumi. Retrieved from https://idiyas.com/inventor/masaya-kawasumi

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

USPTO Granted Patents = 19 

% Patents Active = 57.9

Average Co-Inventor Count = 5.2

ph-index = 10

Forward Citations = 538(Granted Patents)


Location History:

  • Aichi-ken, JP (2000 - 2004)
  • Aichi, JP (1988 - 2006)
  • Anjo, JP (2000 - 2011)
  • Anjyo, JP (2008 - 2013)

Company Filing History:

goldMedal17 out of 1,153 
 
Kabushiki Kaisha Toyota Chuo Kenkyusho
 patents
silverMedal2 out of 38,970 
 
Toyota Jidosha Kabushiki Kaisha
 patents
bronzeMedal1 out of 5,207 
 
Aisin Seiki Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1988-2013

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Areas of Expertise:
Electrolyte Membrane
Fuel Cell
Polymer Electrolyte
Composite Material
Membrane Electrode Assembly
High Durability
Ion Conductive Polymers
Grafted Polymer
Liquid Crystal Composition
Optical Device
Production Process
Resin Composite
19 patents (USPTO):Explore Patents
1. 8440365 - Electrolyte, production process therefor, electrolyte membrane, production process therefor, catalyst layer and fuel cell (2013-05-14),
2. 8034509 - Polymer electrolyte membrane with an inorganic backbone (2011-10-11),
3. 7973109 - Crosslinked type layered metal phosphonate compound, production process therefor, non-crosslinked type layered metal phosphonate compound, production process therefor, as well as stock solution (2011-07-05),
4. 7879475 - Solid polymer electrolyte, solid polymer fuel cell and method for manufacturing the fuel cell (2011-02-01),
5. 7592375 - Ion conductive polymers and imide monomers (2009-09-22),
6. 7414102 - Polymer electrolyte of high durability and a production process thereof (2008-08-19),
7. 7060735 - Polymer electrolyte membrane and method of production thereof (2006-06-13),
8. 6827986 - Grafted polymer electrolyte membrane, method of producing a grafted polymer electrolyte membrane, and fuel cell comprising the same (2004-12-07),
9. 6713207 - Membrane electrode assembly, and solid polymer fuel cell using the assembly (2004-03-30),
10. 6607856 - Solid polymer electrolyte having high-durability (2003-08-19),
11. RE37385 - Composite material and process for manufacturing same (2001-09-18),
12. 6117932 - Resin composite (2000-09-12),
13. 6051643 - Resin composite and method for producing the same (2000-04-18),
14. 6023312 - Optical device with memory function employing liquid (2000-02-08),
15. 5766508 - Liquid crystal composition (1998-06-16),

Title: The Innovative Journey of Masaya Kawasumi

Introduction: Masaya Kawasumi is a prominent inventor based in Anjyo, Japan, known for his significant contributions to the field of polymer electrolyte membranes and fuel cell technology. With a remarkable portfolio of 19 patents, he continues to push the boundaries of innovation, developing advanced materials that enhance energy efficiency and sustainability.

Latest Patents: Among his latest innovations are patents focusing on electrolytes and production processes. His work includes an electrolyte with a unique structure, where a fluorinated hydrophilic segment is chemically bonded to a hydrocarbon hydrophobic segment. This invention is particularly noteworthy for its application in a catalyst layer and fuel cell. Another significant patent involves a polymer electrolyte membrane featuring an inorganic backbone. This technology integrates a solid electrolyte that contains numerous micropores, designed to optimize ion exchange capabilities, ultimately enhancing the performance of fuel cells.

Career Highlights: Masaya has held notable positions at esteemed companies, including Kabushiki Kaisha Toyota Chuo Kenkyusho and Toyota Jidosha Kabushiki Kaisha. His extensive experience at these organizations has allowed him to refine his expertise and contribute to groundbreaking innovations in automotive and energy sectors.

Collaborations: Throughout his career, Masaya has collaborated with talented colleagues, including Naoki Hasegawa and Akane Okada. Their combined efforts have fostered a robust environment for research and development, leading to significant advancements in fuel cell technology and polymer materials.

Conclusion: Masaya Kawasumi's innovative spirit is reflected in his numerous patents and collaborative efforts within the industry. As he continues to develop cutting-edge technologies, his work plays an essential role in paving the way for more efficient energy solutions, highlighting the importance of innovation in addressing global energy challenges.

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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