Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061948 | Wavelength stabilizing apparatus and method of adjusting the same | — | 2006-06-13 |
| 6965739 | Optical communication system | Ichiro Seto, Tazuko Tomioka | 2005-11-15 |
| 6504636 | Optical communication system | Ichiro Seto, Tazuko Tomioka | 2003-01-07 |
| 6417942 | Optical communication system and method of controlling optical communication system | Ichiro Seto, Tazuko Tomioka | 2002-07-09 |
| 6040934 | Receptacle-type optical transmission/reception apparatus | Masahiro Ogusu, Tazuko Tomioka | 2000-03-21 |
| 5986787 | Near-infrared communication apparatus | Yasuhiko Shimomura, Masahiro Ogusu | 1999-11-16 |
| 5979069 | Dial gauge | Shuuji Hayashida, Seigo Takahashi, Masamichi Suzuki | 1999-11-09 |
| 5920414 | Wavelength division multiplexing optical transmission apparatus and optical repeater | Masahide Miyachi | 1999-07-06 |
| 5799118 | Integrated optical multiplexer-and-demultiplexer | Masahiro Ogusu | 1998-08-25 |
| 5739943 | Polarization control unit | Tazuko Tomioka, Mitsuko Nakamura, Senji Shimanuki, Manish Sharma, Hiroyuki Ibe +2 more | 1998-04-14 |
| 5483368 | Optical communication system suitable for selective reception of multiple services | — | 1996-01-09 |
| 5170451 | Optical WDM (wavelength division multiplex) coupler | — | 1992-12-08 |
| 5056887 | Optical mixing device | — | 1991-10-15 |
| 4998256 | Semiconductor laser apparatus | Mitsuko Nakamura | 1991-03-05 |
| 4857997 | Color television camera incorporating a color resolving prism system | Kiyoshi Fukami, Takeshi Sekiguchi | 1989-08-15 |
| 4812911 | Adapter with built-in shutter | Takeshi Sekiguchi | 1989-03-14 |
| 4797734 | Pickup apparatus | — | 1989-01-10 |
| 4589015 | Color television camera with bias light device featuring reduced color shading | Kazuo Nakata, Jun Hosoya, Takeshi Sekiguchi | 1986-05-13 |
| 4400055 | Optical power distributor and method for manufacturing the same | Takeshi Ozeki | 1983-08-23 |
| 4262305 | TV Camera | Takeshi Sekiguchi | 1981-04-14 |
| 4236177 | Beam splitting prism assembly with bias light source | Takeshi Sekiguchi | 1980-11-25 |
| 4216494 | Television camera with bias light | Takeshi Sekiguchi | 1980-08-05 |