Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6842560 | Optical multiplexing circuit and optical multiplexer | Kouichi Fujisaki, Akimasa Kaneko, Takashi Asaoka, Yoshihisa Sakai | 2005-01-11 |
| 5019890 | Heterojunction bipolar transistor | Tadao Ishibashi | 1991-05-28 |
| 4193045 | Temperature compensated surface acoustic wave oscillators | Kouji Houkawa, Shokichiro Yoshikawa | 1980-03-11 |