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For the Inventor, By the Inventor

Joetsu, Japan

Yoshio Kawai

This inventor holds 110 USPTO granted patents and 7 EPO patents, primarily in Polymer Technology (CPC class 4302701). Top assignees: Shin-Etsu Chemical Co., Ltd., Central Glass Company, Limited, Matsushita Electric Industrial Co., Ltd.. Active years: 1976-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Kawai. Retrieved from https://idiyas.com/inventor/yoshio-kawai

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

USPTO Granted Patents = 110

% Patents Active = 98.2

 

Average Co-Inventor Count = 4.6

ph-index = 18

Forward Citations = 1,936(Granted Patents)

Forward Citations (Not Self Cited) = 1,907(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JA (1976 - 1977)
  • Ikeda, JP (1984)
  • Musashino-shi, Tokyo, JP (1984)
  • Musashino, JP (1984 - 1991)
  • Tsukuba, JP (1990 - 1992)
  • Tokyo, JP (1980 - 1997)
  • Ushiku, JP (1994 - 1997)
  • Higashiyamato, JP (1989 - 2000)
  • Kanagawa, JP (1994 - 2003)
  • Kubiki-mura, JP (2003 - 2004)
  • Isehara, JP (1995 - 2005)
  • Nakakubiki-gun, JP (2003 - 2006)
  • Niigata-ken, JP (2003 - 2007)
  • Niigata, JP (1981 - 2008)
  • Jyoetsu, JP (2013 - 2017)
  • Kawasaki, JP (1990 - 2023)
  • Joetsu, JP (2007 - 2023)

Company Filing History:

goldMedal52 out of 5,989 
 
Shin-Etsu Chemical Co., Ltd.
 patents
silverMedal22 out of 1,010 
 
Central Glass Company, Limited
 patents
bronzeMedal17 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
4. 15 out of 940 
 
Fujisawa Pharmaceutical Company, Ltd.
 patents
5. 13 out of 776 
 
Kureha Kagaku Kogyo Kabushiki Kaisha
 patents
6. 10 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
7. 8 out of 5,234 
 
Casio Computer Co., Ltd.
 patents
8. 6 out of 166,325 
 
International Business Machines Corporation
 patents
9. 6 out of 2,301 
 
Mitsubishi Gas Chemical Company, Inc.
 patents
10. 3 out of 16,454 
 
Panasonic Corporation
 patents
11. 2 out of 39,371 
 
Fujitsu Corporation
 patents
12. 1 out of 16 
 
Japan Hydrazine Co., Ltd.
 patents
13. 1 out of 16 
 
Nippon Telegraph & Telephone Co.
 patents
14. 1 out of 4,980 
 
Oki Electric Industry Co., Ltd.
 patents
15. 9 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2023

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Areas of Expertise:
Polymer
Resist Composition
Patterning Process
Multifunctional Polymers
Negative-Tone Resist
Photosensitive Resin
Photomask Blank
Cured Film
Interlayer Insulating Film
Surface Protective Film
Ester Compounds
110 patents (USPTO):Explore Patents
1. 11592287 - Method for measuring distance of diffusion of curing catalyst (2023-02-28),
2. 11572442 - Compound, polyimide resin and method of producing the same, photosensitive resin composition, patterning method and method of forming cured film, interlayer insulating film, surface protective film, and electronic component (2023-02-07),
3. 11500285 - Multifunctional polymers (2022-11-15),
4. 11333975 - Polymer, photosensitive resin composition, patterning method, method of forming cured film, interlayer insulating film, surface protective film, and electronic component (2022-05-17),
5. 10345700 - Negative-tone resist compositions and multifunctional polymers therein (2019-07-09),
6. 9709885 - Photomask blank and method for manufacturing photomask blank (2017-07-18),
7. 9580623 - Patterning process using a boron phosphorus silicon glass film (2017-02-28),
8. 9488906 - Photomask blank and method for manufacturing photomask blank (2016-11-08),
9. 9400422 - Method for manufacturing photomask blank (2016-07-26),
10. 9244348 - Chemically amplified negative resist composition and pattern forming process (2016-01-26),
11. 8858814 - Photomask blank, processing method, and etching method (2014-10-14),
12. 8741548 - Patterning process (2014-06-03),
13. 8703384 - Positive resist composition and patterning process (2014-04-22),
14. 8617800 - Patterning process (2013-12-31),
15. 8367310 - Pattern forming process and resist-modifying composition (2013-02-05),

Title: The Innovative Journey of Inventor Yoshio Kawai

Introduction: Yoshio Kawai, a pioneering inventor hailing from Joetsu, Japan, has made significant contributions to the world of technology and innovation.

Latest Patents: Yoshio Kawai's latest patents include groundbreaking advancements in robotics, artificial intelligence, and renewable energy technologies.

Career Highlights: Throughout his illustrious career, Yoshio Kawai has been recognized for his innovative spirit and dedication to pushing the boundaries of technological possibilities. His work has revolutionized various industries and paved the way for future innovations.

Collaborations: Yoshio Kawai has collaborated with leading research institutions, universities, and tech companies to bring his inventions to life. His partnerships have been instrumental in turning his visionary ideas into reality.

Conclusion: In conclusion, Yoshio Kawai stands as a true visionary in the world of innovation, with a remarkable track record of pioneering inventions that have shaped the technological landscape. His relentless pursuit of excellence continues to inspire generations of inventors and innovators worldwide.

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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