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For the Inventor, By the Inventor

Tokyo, Japan

Kyoritsu Seiyaku Corporation


USPTO Granted Patents = 10



Trademarks = 1

Forward Citations = 5

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16 inventors (with patents filed for the assignee):

goldMedal Masami Mochizuki (5 out of 13 patents)

silverMedal Kazuo Kawakami (3 out of 3 patents)

bronzeMedal Kenyo Ishii (2 out of 2 patents)

4.  Masahiko Kishi (2 out of 5 patents)

5.  Katsuo Kumagai (2 out of 3 patents)

6.  Ken-ichi Komine (2 out of 2 patents)

7.  Kenzo Kai (2 out of 2 patents)

8.  Toshiya Hamada (1 out of 128 patents)

9.  Koji Kimura (1 out of 1 patent)

10.  Shuichi Matsuyama (1 out of 1 patent)

11.  Yukinori Takahashi (1 out of 4 patents)

12.  Ken-ichi Asai (1 out of 1 patent)

13.  Michinari Abe (1 out of 1 patent)

14.  Makoto Seki (1 out of 5 patents)

15.  Tomohiko Uda (1 out of 1 patent)


10 patents:

1. 12352764 - Method of detecting heart failure, device for detecting heart failure, sandwich immunoassay method, and combination of antibodies (2025-07-08),
2. 9987359 - Subcutaneous injection product for cattle for inducing superovulation (2018-06-05),
3. 9381241 - Mucosal adjuvant composition (2016-07-05),
4. 8246963 - [object Object] (2012-08-21),
5. 7910366 - Cell strain capable of being cultured without ingredients derived from animals, method of producing the same, method of producing virus using the same, and method of producing vaccine (2011-03-22),
6. 7767451 - Feline cell capable of being cultured without animal-derived protein, and method for producing virus and method for producing vaccine using thereof (2010-08-03),
7. 7659114 - Recombinant feline herpesvirus type 1 and polyvalent vaccine using the same (2010-02-09),
8. 7297533 - Recombinant feline herpesvirus type 1 and polyvalent vaccine using the same (2007-11-20),
9. 7235528 - Immunopotentiator for mammary gland of dairy cows containing lactoferrin as an active ingredient (2007-06-26),
10. 6872709 - Therapeutic agent for mastitis of livestock and method for treating mastitis using the same agent (2005-03-29),
Company Overview
Kyoritsu Seiyaku Corporation is a prominent player in the pharmaceutical industry, headquartered in Tokyo, Japan. The company specializes in the development and manufacturing of a diverse range of pharmaceutical products, including prescription medications and over-the-counter drugs. Kyoritsu Seiyaku is committed to advancing healthcare through innovative research and development, focusing on therapeutic areas that address significant medical needs. Its dedication to quality and efficacy positions it as a trusted entity in the global pharmaceutical landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

10 Patents

#1,915 in Tokyo

#4,404 in Japan

#56,092 in the World

Tokyo, JP
Tokyo, Japan

Kyoritsu Seiyaku Corporation

Forward Citations = 5

16 inventors:

goldMedal Masami Mochizuki (5 out of 13 patents)

silverMedal Kazuo Kawakami (3 out of 3 patents)

bronzeMedal Kenyo Ishii (2 out of 2 patents)

4.  Masahiko Kishi (2 out of 5 patents)

5.  Katsuo Kumagai (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kyoritsu Seiyaku Corporation. Retrieved from https://idiyas.com/company/kyoritsu-seiyaku

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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