YW

Yoshihisa Warashina

HK Hamamatsu Photonics K.K.: 35 patents #50 of 1,436Top 4%
HP Hamamatsu Photonics: 4 patents #24 of 131Top 20%
NT NTT: 2 patents #2,095 of 4,871Top 45%
Overall (All Time): #78,049 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
8335031 Optical module Tomofumi Suzuki 2012-12-18
7486846 Optical transmitting /receiving module Yasuji Hoshino, Hajime Takeyama, Masaaki Muto 2009-02-03
7433554 Optical wiring board and method for manufacturing optical wiring board Yasuji Hoshino, Hajime Takeyama, Masaaki Muto 2008-10-07
7254301 Optical module Yasuji Hoshino, Takashi Iida, Kei Tabata 2007-08-07
7226219 High-frequency signal transmitting optical module and method of fabricating the same Yasuji Hoshino, Kei Tabata, Shogo Iyama 2007-06-05
6880985 Optical module Yasuji Hoshino, Shogo Iyama, Hajime Takeyama 2005-04-19
6155724 Light transmitting module for optical communication and light transmitting unit thereof Haruhiko Ichino, Masaki Hirose, Mikio Kyomasu 2000-12-05
6071016 Light receiving module for optical communication and light receiving unit thereof Haruhiko Ichino, Masaki Hirose, Mikio Kyomasu 2000-06-06
5534992 Optical measuring apparatus Akira Takeshima, Musubu Koishi, Yoshihiko Mizushima 1996-07-09
5109358 Optical flip-flop circuit Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Kenichi Sugimoto +1 more 1992-04-28
5068815 Optical full adder Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Kenichi Sugimoto +2 more 1991-11-26
5051573 Optical logic operation system Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Kenichi Sugimoto +1 more 1991-09-24
5044744 Method and apparatus for distance measurement using electromagnetic waves Ichizo Ogawa, Yoshihiko Mizushima, Koji Ichie, Morio Takeichi, Akira Takeshima 1991-09-03
5034921 High speed optical memory circuit Kazutoshi Nakajima, Hirofumi Kan, Kenichi Sugimoto, Yoshihiko Mizushima, Takashi Iida +1 more 1991-07-23
5020064 Electromagnetic wave device Yoshihiko Mizushima, Takashi Iida, Toru Hirohata, Kenichi Sugimoto, Kazutoshi Nakajima 1991-05-28