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For the Inventor, By the Inventor

Tokyo, Japan

Kemphys Ltd.


USPTO Granted Patents = 12

% Expired Patents = 75.0


Forward Citations = 3

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14 inventors (with patents filed for the assignee):

goldMedal Koichi Shudo (12 out of 55 patents)

silverMedal Hiroyuki Kagechika (4 out of 11 patents)

bronzeMedal Miwako Ishido (4 out of 4 patents)

4.  Tetsuro Matsuishi (3 out of 3 patents)

5.  Kiyoshi Sugiyama (2 out of 18 patents)

6.  Ai Ito (2 out of 4 patents)

7.  Hideaki Muratake (2 out of 4 patents)

8.  Naoko Katsumura (2 out of 2 patents)

9.  Hiroshi Fukasawa (2 out of 4 patents)

10.  Kohichi Kawahara (1 out of 1 patent)

11.  Michita Suenobu (1 out of 1 patent)

12.  Seishiro Fujii (1 out of 1 patent)

13.  Mitsuko Takenaga (1 out of 1 patent)

14.  Tetsuji Asao (1 out of 23 patents)

15.  Sugiyama Kiyoshi (0 patent)


12 patents:

1. 10485776 - Medicament for therapeutic treatment of neuropathic disease (2019-11-26),
2. 10004710 - Medicament for therapeutic treatment of neuropathic disease (2018-06-26),
3. 9861640 - Medicament for treatment of Alzheimer's disease (2018-01-09),
4. 9353134 - Silicon-containing carboxylic acid derivative (2016-05-31),
5. 8895769 - Silicon-containing carboxylic acid derivative (2014-11-25),
6. 8431613 - Memory fixation accelerator (2013-04-30),
7. 8198329 - Memory consolidation promoting agent and method of use (2012-06-12),
8. 8168677 - Method for treatment of inflammatory bowel disease (2012-05-01),
9. 8071647 - Method for treatment of adhesion of the intestines (2011-12-06),
10. 8030360 - Anti-wrinkle agent (2011-10-04),
11. 7968600 - Medicament for preventive and therapeutic treatment of physical dysfunction caused by nerve damage (2011-06-28),
12. 7902260 - Medicament for preventive and/or therapeutic treatment of lower urinary tract symptom (2011-03-08),
Company Overview
Kemphys Ltd. is a Tokyo-based company specializing in advanced materials and innovative solutions for various industries. The organization focuses on the development and manufacturing of high-performance polymers and composites, catering to sectors such as automotive, electronics, and healthcare. With a commitment to research and development, Kemphys aims to enhance product performance and sustainability through cutting-edge technology and materials science, positioning itself as a leader in the field of advanced manufacturing.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#1,729 in Tokyo

#3,935 in Japan

#48,163 in the World

Tokyo, JP
Tokyo, Japan

Kemphys Ltd.

Forward Citations = 3

14 inventors:

goldMedal Koichi Shudo (12 out of 55 patents)

silverMedal Hiroyuki Kagechika (4 out of 11 patents)

bronzeMedal Miwako Ishido (4 out of 4 patents)

4.  Tetsuro Matsuishi (3 out of 3 patents)

5.  Kiyoshi Sugiyama (2 out of 18 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kemphys Ltd.. Retrieved from https://idiyas.com/company/kemphys

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

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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