Kao Corporation

Kao Corporation, headquartered in Tokyo, Japan, is a leader in the personal care products sector, specializing in innovative solutions that enhance daily living. The company focuses on advanced technologies such as hydrogel structures, disinfectant compositions, and microencapsulation, which are integral to its diverse product range. Kao's commitment to research in surfactant compositions and dyeing technologies positions it at the forefront of the industry, driving sustainable practices and consumer satisfaction globally.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

3,682 Patents

#35 in Tokyo

#66 in Japan

#252 in the World

Tokyo, Japan

Kao Corporation

Forward Citations = 28,119

3,346 inventors:

Kuniyasu Kawabe (43 out of 44 patents)

Yasuhiro Doi (40 out of 42 patents)

Eiji Shirai (38 out of 38 patents)

4. Yoshiaki Fujikura (35 out of 50 patents)

5. Hiroyuki Yamashita (34 out of 55 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kao Corporation. Retrieved from https://idiyas.com/company/kao

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]

5 patents (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]

1,410 patents (EPO):

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]