Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5253316 | Optical contact unit and optical connector using the optical contact unit | Michitomo Shibutani, Yoshitaro Sato, Masaru Kurisaka | 1993-10-12 |
| 5239606 | Optical connector comprising an optical connection adapter with means for connection/disconnection of an optical contact | Michitomo Shibutani, Yoshitaro Sato, Masaru Kurisaka | 1993-08-24 |
| 4761060 | Optical delay type flipflop and shift register using it | — | 1988-08-02 |
| 4302687 | Semiconductor switch | Tetsuo Yoshino, Tokuo Takeuchi | 1981-11-24 |
| 4264786 | A.C. Signal current transmission trunk circuit for telephone exchange systems | Tetsuo Yoshino | 1981-04-28 |