HN

Hisahiko Narukawa

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
SC Sumitomo Electric Optifrontier Co.: 3 patents #19 of 57Top 35%
JC Japan Communication Accessories Manufacturing Co.: 1 patents #19 of 34Top 60%
SL Sumitomo Electric Lightwave: 1 patents #31 of 65Top 50%
📍 Komaki, JP: #101 of 662 inventorsTop 20%
Overall (All Time): #786,199 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12371937 Hinge and door Duong Tuan Nghia, Shinsuke Sato, Takayuki YOKOCHI 2025-07-29
12111508 Package for optical fiber, package product, method for extracting optical fiber, and jig Junji Fukui, Yoshikyo Tamekuni, Takahiro Inaba, Yoshihiro TAKEYAMA, Daizo Nishioka +3 more 2024-10-08
D1044482 Tray for storing optical fiber Junji Fukui, Yoshikyo Tamekuni, Yuji Matsumoto, Tuan Nghia Duong 2024-10-01
D1043319 Tray for storing optical fiber Junji Fukui, Yoshikyo Tamekuni, Yuji Matsumoto, Tuan Nghia Duong 2024-09-24
11864340 Rack for storing electrical equipment Takayuki YOKOCHI, Shinsuke Sato 2024-01-02
10401585 Bracket and optical unit with bracket Eisuke Oki, Shinsuke Sato, Takayuki YOKOCHI, Takashi Kondo 2019-09-03