Issued Patents All Time
Showing 76–100 of 155 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966228 | Optical transmission system and optical repeater | Shigeyuki Akiba, Shu Yamamoto, Noboru Edagawa, Hidenori Taga | 1999-10-12 |
| 5959764 | Wavelength converter, optically operational device and optical pulse phase detecting circuit | Noboru Edagawa, Shu Yamamoto | 1999-09-28 |
| 5898714 | Optical pulse generator | Itsuro Morita, Noboru Edagawa, Shu Yamamoto, Shigeyuki Akiba | 1999-04-27 |
| 5892608 | Optical receiver device for dark soliton lightwave | Noboru Edagawa, Hidenori Taga, Shu Yamamoto, Shigeyuki Akiba | 1999-04-06 |
| 5889607 | Optical modulator, optical short pulse generating device, optical waveform shaping device, and optical demultiplexer device | Noboru Edagawa, Itsuro Morita, Shu Yamamoto, Shigeyuki Akiba | 1999-03-30 |
| 5883734 | Optical switch with reduced polarization dependency and no waveform deformation and frequency shift | Shigeyuki Akiba | 1999-03-16 |
| 5874663 | Waterproof structure for an air-fuel ratio sensor | Kenji Fukaya, Makoto Hori, Masahiro Hamaya | 1999-02-23 |
| 5864421 | Optical frequency shifter and optical soliton-like return-to-zero pulse transmission system using optical frequency shifter | Noboru Edagawa, Itsuro Morita, Shu Yamamoto, Shigeyuki Akiba | 1999-01-26 |
| 5825144 | Drive control apparatus for a rotating machine | Koichi Futsuhara, Masayoshi Sakai | 1998-10-20 |
| 5808789 | Optically amplifying transmission system | Noboru Edagawa, Hidenori Taga, Itsuro Morita, Shu Yamamoto, Shigeyuki Akiba | 1998-09-15 |
| 5798856 | Optical pulse generator | Hideaki Tanaka, Yuichi Matsushima | 1998-08-25 |
| 5798871 | Zoom lens | Atsushi Shibayama, Takanori Fujita | 1998-08-25 |
| 5786918 | Optical communication system and optical transmitting device | Hidenori Taga, Noboru Edagawa, Hideaki Tanaka, Shu Yamamoto, Shigeyuki Akiba | 1998-07-28 |
| 5737110 | Optical communication system using dark soliton lightwave | Noboru Edagawa, Hidenori Taga, Shu Yamamoto, Shigeyuki Akiba | 1998-04-07 |
| 5726789 | Method and device for modulating optical short pulses | Yukio Horiuchi | 1998-03-10 |
| 5721642 | Zoom lens | Atsushi Shibayama, Takanori Fujita | 1998-02-24 |
| 5715097 | Zoom lens | Atsushi Shibayama, Takanori Fujita | 1998-02-03 |
| 5707503 | Oxygen sensor element | Yasumichi Hotta, Hiromi Sano, Toshitaka Saito, Naoto Miwa | 1998-01-13 |
| 5668668 | Zoom lens with five lens groups | Atsushi Shibayama, Takanori Fujita | 1997-09-16 |
| 5660661 | Oxygen sensor | Tomio Sugiyama, Hiromi Sano, Toshitaka Saito, Satoru Nomura | 1997-08-26 |
| 5642215 | Optical transmission system | Itsuro Morita, Noboru Edagawa, Hidenori Taga, Shu Yamamoto, Shigeyuki Akiba | 1997-06-24 |
| 5629795 | Optical amplifying-repeating transmission system | Itsuro Morita, Shu Yamamoto, Noboru Edagawa, Hidenori Taga, Shigeyuki Akiba | 1997-05-13 |
| 5625479 | Soliton optical communication system and optical transmitter and optical receiver therefor | Noboru Edagawa, Hidenori Taga, Shu Yamamoto, Shigeyuki Akiba | 1997-04-29 |
| 5619110 | Safety ensuring apparatus | Noboru Sugimoto, Koichi Futsuhara, Masayoshi Sakai, Ritsuo Mihira | 1997-04-08 |
| 5573650 | Gas sensor | Kenji Fukaya, Masahiro Hamaya, Makoto Hori | 1996-11-12 |