MO

Masashi OKA

SC Sei Optifrontier Co.: 1 patents #45 of 82Top 55%
Overall (All Time): #1,953,330 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9958620 Optical fiber with connector Kenichiro Ohtsuka, Kotaro Ueda, Tsutomu Kamada, Junji Fukui 2018-05-01
6286898 Vehicle sunroof with weatherstrip mounting flange Eiji Mori, Shuji Matsuyama, Akira Shikada 2001-09-11