TK

Tsutomu Kamada

SC Sei Optifrontier Co.: 4 patents #19 of 82Top 25%
JC Japan Communication Accessories Manufacturing Co.: 1 patents #19 of 34Top 60%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
SC Sumitomo Electric Optifrontier Co.: 1 patents #40 of 57Top 75%
Overall (All Time): #950,668 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11215763 Elastic member and optical connector Yusuke Takai, Motoyoshi KIMURA, Fumiya UEHARA, Masaki Omura 2022-01-04
10641971 Optical connector Kenichiro Ohtsuka, Motoyoshi KIMURA 2020-05-05
10539745 Optical connector Kenichiro Ohtsuka, Yuji Suzuki, Motoyoshi KIMURA, Yoshinobu Oki 2020-01-21
10114179 Optical connector, pin keeper, pin insertion jig, expansion member, and pin insertion tool Kenichiro Ohtsuka, Motoyoshi KIMURA, Tatsuhiko Shitomi 2018-10-30
9958620 Optical fiber with connector Kenichiro Ohtsuka, Kotaro Ueda, Junji Fukui, Masashi OKA 2018-05-01