YKK Corporation, headquartered in Tokyo, Japan, is a global leader in the manufacturing of slide fasteners and related fastening products. The company specializes in innovative technologies such as waterproof chains, fastening methods, and various slider designs, catering to diverse industries including apparel, automotive, and outdoor gear. YKK is committed to quality and sustainability, continually advancing its core technologies to enhance functionality and performance in fastening solutions.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

1,409 Patents

#86 in Tokyo

#162 in Japan

#709 in the World

Tokyo, Japan

Ykk Corporation

Forward Citations = 11,563

922 inventors:

Keiichi Keyaki (79 out of 87 patents)

Ryoichiro Uehara (57 out of 58 patents)

Ryuichi Murasaki (55 out of 78 patents)

4. Yohei Miyazaki (40 out of 40 patents)

5. Yoshikazu Hamada (39 out of 39 patents)

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

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]

42 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]

661 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]