Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5532858 | Optical radio transmission system and a method for adjusting optical axes thereof | Kazutoshi Hirohashi, Teruhiko Shinomiya, Manabu Sakane, Keishi Ushijima, Takaaki Takeda +2 more | 1996-07-02 |
| 5349463 | Optical radio repeater with signal quality detection | Kazutoshi Hirohashi, Hiroshi Horii, Hideo Koike, Yoshiaki Yunoki, Tetsuo Fukasawa +7 more | 1994-09-20 |