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For the Inventor, By the Inventor

Tokyo, Japan

Kh Neochem Co., Ltd.


USPTO Granted Patents = 15

% Expired Patents = 53.3


Trademarks = 2

Forward Citations = 12

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21 inventors (with patents filed for the assignee):

goldMedal Toshihiro Inayama (9 out of 9 patents)

silverMedal Junya Kishi (8 out of 8 patents)

bronzeMedal Satoshi Hiyoshi (5 out of 6 patents)

4.  Shinji Tanaka (3 out of 91 patents)

5.  Shingo Nakayama (3 out of 21 patents)

6.  Yuichiro Nakai (3 out of 3 patents)

7.  Nobuhito Amemiya (3 out of 3 patents)

8.  Takahiro Sawada (2 out of 2 patents)

9.  Aya Okita (2 out of 2 patents)

10.  Masato Kujime (2 out of 2 patents)

11.  Takuya Nishimura (2 out of 2 patents)

12.  Tomohiro Iwasa (2 out of 2 patents)

13.  Shigehisa Kishimoto (2 out of 2 patents)

14.  Takashi Hakumura (2 out of 2 patents)

15.  Jun Kanada (2 out of 2 patents)


15 patents:

1. 12091379 - Product 1,3-butylene glycol (2024-09-17),
2. 11952329 - Product 1,3-butylene glycol (2024-04-09),
3. 10647901 - Refrigerating machine oil composition and working fluid composition for refrigerating machine using same (2020-05-12),
4. 10640691 - Refrigerating machine oil composition and working fluid composition for refrigerating machine using same (2020-05-05),
5. 10266788 - Refrigerating-machine oil composition and working fluid composition including same for refrigerating machine (2019-04-23),
6. 9878974 - Ester of pentaerythritol and isotridecanoic acid used therefor (2018-01-30),
7. 9567284 - Hexaester of mono-formal bis pentaerythritol (2017-02-14),
8. 9546334 - Refrigerating machine oil, and working fluid composition for refrigerating machine which is produced using same (2017-01-17),
9. 9523058 - Mixed ester (2016-12-20),
10. 9365484 - Hexaester of mono-formal bis pentaerythritol (2016-06-14),
11. 9328306 - Mixed ester (2016-05-03),
12. 8772531 - Neopentyl glycol diester (2014-07-08),
13. 8772530 - Pentaerythritol tetraester (2014-07-08),
14. 8664430 - Pentaerythritol tetraester (2014-03-04),
15. 8455413 - Additive for oils and lubricant comprising the same (2013-06-04),
Company Overview
Kh Neochem Co., Ltd. is a Tokyo-based company specializing in the development and manufacturing of fine chemicals and specialty materials. The organization focuses on innovative solutions for various industries, including electronics, automotive, and pharmaceuticals. With a commitment to research and development, Kh Neochem leverages advanced technologies to create high-performance products that meet the evolving needs of its global clientele. The company's expertise in chemical synthesis and material science positions it as a key player in the specialty chemicals sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#1,540 in Tokyo

#3,443 in Japan

#39,921 in the World

Tokyo, JP
Tokyo, Japan

Kh Neochem Co., Ltd.

Forward Citations = 12

21 inventors:

goldMedal Toshihiro Inayama (9 out of 9 patents)

silverMedal Junya Kishi (8 out of 8 patents)

bronzeMedal Satoshi Hiyoshi (5 out of 6 patents)

4.  Shinji Tanaka (3 out of 91 patents)

5.  Shingo Nakayama (3 out of 21 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kh Neochem Co., Ltd.. Retrieved from https://idiyas.com/company/kh-neochem-company

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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