Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978076 | Variable optical attenuator | Toshiya Kishida, Takashi Yamane | 2005-12-20 |
| 6477190 | Optical module | Manabu Komiyama, Yoshimitsu Sakai, Masaki Kuribayashi | 2002-11-05 |
| 6126325 | Receptacle module for optical telecommunication | Takashi Yamane, Toshiya Kishida, Sadayuki Miyata | 2000-10-03 |
| 5721426 | Optical transmitting/receiving module having communication lines coupled by a single lens | Yoshimitsu Sakai, Hironao Hakogi | 1998-02-24 |
| 5677779 | Optical communications module | Gan Oda, Tomohisa Ishikawa, Yoshimitsu Sakai, Akira Okamoto, Tetsuo Watanabe +2 more | 1997-10-14 |
| 5652767 | Data decision circuit used in optical parallel receiving module, optical parallel receiving module, optical parallel transmission system and terminal structure of optical transmission fiber | Tetsuya Kiyonaga, Tetsuo Watanabe, Hiroyuki Furukawa, Yoshimitsu Sakai, Sadayuki Miyata +1 more | 1997-07-29 |
| 5546212 | Optical module for two-way transmission | Akira Okamoto, Tetsuo Watanabe, Sadayuki Miyata, Hiroyuki Furukawa, Yoshimitsu Sakai | 1996-08-13 |
| 5479547 | Optical multiplexer and demultiplexer module including multiplexing and demultiplexing filter film | Tetsuo Watanabe, Sadayuki Miyata, Hiroyuki Furukawa, Yoshimitsu Sakai | 1995-12-26 |
| 5291571 | Duplicated light source module | Saburo Uno, Nobuhiro Fukushima | 1994-03-01 |
| 5280389 | Ball lens assembly | Akira Okamoto, Saburo Uno, Masahiko Uemura | 1994-01-18 |
| 5076675 | Polarizing separating device and optical isolator employing the same | Satoshi Kusaka, Hideki Noda, Kiyoshi Terai, Hironao Hakogi | 1991-12-31 |
| 5048912 | Optical fiber switching with spherical lens and method of making same | Kiyoshi Terai, Hideki Isono, Michihiro Takamatsu | 1991-09-17 |
| 5005935 | Wavelength-division multiplexing optical transmission system | Takashi Yokota | 1991-04-09 |