Kyowa Hakko Kogyo Co., Ltd. is a Japanese biotechnology company that specializes in the manufacturing of biochemicals, nutritional supplements, and pharmaceuticals. Founded in 1949, the company has a strong presence in the global market and is known for its innovative products and cutting-edge research in the fields of amino acids, healthcare, and pharmaceuticals.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#2,022 in Tokyo

#4,704 in Japan

Tokyo, Japan

Kyowa Hakko Kogyo

Forward Citations = 78

34 inventors:

Shin-ichi Hashimoto (2 out of 24 patents)

Ryoichi Katsumata (2 out of 37 patents)

Fumihiko Kanai (2 out of 12 patents)

4. Hirofumi Nakano (1 out of 49 patents)

5. Satoru Furukawa (1 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kyowa Hakko Kogyo. Retrieved from https://idiyas.com/company/kyowa-hakko-kogyo

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]

1 patent (CIPO):

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]