Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5751455 | Optical transmission system and optical network terminals used therein | Makoto Shibutani | 1998-05-12 |
| 5615036 | Optical network comprising node groups and an analog repeater node unit between two node groups | — | 1997-03-25 |
| 5424864 | Microcellular mobile communication system | — | 1995-06-13 |
| 5400391 | Mobile communication system | Makoto Shibutani, Junji Namiki, Toshihito Kanai | 1995-03-21 |
| 5327276 | Optical local area network system and node apparatus used in the same | Naoki Shimosaka | 1994-07-05 |
| 5325382 | Method and electrode arrangement for inducing flat frequency modulation response in semiconductor laser | Ikuo Mito, Yoshihiko Suemura | 1994-06-28 |
| 4759080 | Coherent optical communication system with FSK heterodyne or homodyne detection and little influence by distortion of a modulated optical signal | Minoru Shikada | 1988-07-19 |
| 4706300 | Optical heterodyne detection pulse receiving system and method | Kouichi Minemura, Minoru Shikada | 1987-11-10 |