Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031855 | Light emitting element driving circuit and light emitting device having the same | — | 2000-02-29 |
| 5563898 | Semiconductor laser drive | Tadashi Ikeuchi, Kazuyuki Mori | 1996-10-08 |
| 5265088 | Cross-connection apparatus for B- | Yuji Takigawa, Masaaki Kawai, Hidetoshi Naito, Kazuyuki Tajima, Haruo Yamashita | 1993-11-23 |
| 5257311 | System for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cell | Hidetoshi Naito, Masaaki Kawai, Yuji Takizawa, Kazuyuki Tajima, Haruo Yamashita | 1993-10-26 |
| 5001726 | Circuit for generating discrimination voltage level | Masaaki Kawai, Tomoyuki Ohtsuka | 1991-03-19 |
| 4935701 | Phase shift circuit | Masaaki Kawai, Tomoyuki Ohtsuka, Haruo Yamashita | 1990-06-19 |