HK

Hiroyuki Kunugiyama

HC Hitachi Cable: 2 patents #313 of 1,086Top 30%
TI Tokyo Electric Power Company Holdings, Incorporated: 1 patents #245 of 711Top 35%
Overall (All Time): #2,300,124 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5190364 Optical star coupler and method for manufacturing the same Katsuyuki Imoto 1993-03-02
5113277 Fiber optic distributed temperature sensor system Yasuo Ozawa, Nobuo Ando, Satoshi Yamamoto, Toshio Fukahori, Kouichi Sugiyama +6 more 1992-05-12