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USPTO Data Jan 1 1976 - Oct 20 2026
388 Patents
#222 in Tokyo
#447 in Japan
#2,391 in the World
Denka Company Limited
Forward Citations = 155
476 inventors:
Denka Company Limited
% Expired Patents = 6.4
CIPO Patents = 2
EPO Patents = 413
Trademarks = 44
Forward Citations = 155
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476 inventors (with patents filed for the assignee):
Tomohiro Nomiyama (18 out of 22 patents)
Hideyuki Emoto (17 out of 31 patents)
Toru Arai (16 out of 42 patents)
4. Takeshi Miyakawa (16 out of 36 patents)
5. Shintaro Watanabe (15 out of 32 patents)
6. Daisuke Goto (14 out of 35 patents)
7. Hideki Hirotsuru (14 out of 29 patents)
8. Yosuke Ishihara (14 out of 15 patents)
9. Yusuke Takeda (13 out of 43 patents)
10. Yoshitaka Taniguchi (11 out of 13 patents)
11. Atsushi Takei (11 out of 11 patents)
12. Masahiro Konishi (11 out of 49 patents)
13. Takashi Kawasaki (10 out of 86 patents)
14. Atsushi Horihata (10 out of 10 patents)
15. Hiroaki Ota (10 out of 10 patents)
Core Competencies:
Heat Dissipation Member
Copper-Diamond Composite
Spherical Alumina Powder
Phosphor Powder
Chloroprene Polymer
Electroconductive Resin
Artificial Hair Fiber
Positive Electrode Composition
Silicon Nitride Circuit Board
Carbon Nanofiber Composite
Diagnostic Testing Device
Liquid Humic Acid Extract
388 patents:
Company Overview
Denka Company Limited, headquartered in Tokyo, specializes in advanced materials with a focus on heat dissipation technologies. The company develops a range of products including heat dissipation members, copper-diamond composites, and electroconductive resins, catering to various industries such as electronics and automotive. Denka's innovative solutions also encompass spherical alumina powder, phosphor powder, and chloroprene polymers, positioning the company as a key player in the materials science sector, particularly in enhancing thermal management and performance.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Denka Company Limited. Retrieved from https://idiyas.com/company/denka-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]
2 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]
413 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]