Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |