Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5841927 | Optical waveguide device and optical waveguide apparatus | Hironao Hakogi, Akiko Tanno, Toshihiro Otani, Shinya Sawae | 1998-11-24 |
| 5612086 | Method of manufacturing an optical waveguide device | Hironao Hakogi, Takashi Yamane | 1997-03-18 |
| 5259044 | Mach-Zehnder optical modulator with monitoring function of output light | Hideki Isono, Hiroki Okushima, Tadao Shingyoji | 1993-11-02 |
| 4245331 | Memory pack | Koichi Hamano, Takao Morimoto, Kaoru Ono, Norio Yagi | 1981-01-13 |
| 4220991 | Electronic cash register with removable memory packs for cashier identification | Koichi Hamano, Takao Morimoto, Kaoru Ono, Norio Yagi | 1980-09-02 |
| 4213179 | Data processing apparatus for electronic cashier registers | Koichi Hamano, Takao Morimoto, Kaoru Ono, Norio Yagi | 1980-07-15 |