Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073733 | Delay circuit with muting to prevent noise due to random data at output | Masato Onaya | 1991-12-17 |
| 4983863 | Logarithmic amplification circuit for obtaining output voltage corresponding to difference between logarithmically amplified values of two input currents | — | 1991-01-08 |
| 4982431 | Signal distinction circuit | — | 1991-01-01 |
| 4933768 | Sound reproducer | Tsutomu Ishikawa, Ryuichi Ogawa, Fumio Tosaka, Hirofumi Okada, Takayuki Imaida | 1990-06-12 |
| 4926498 | FM diversity receiver | Hirohisa Suzuki | 1990-05-15 |
| 4914680 | Signal distinction circuit | Tsutomu Ishikawa | 1990-04-03 |
| 4905283 | Surround decoder | Tsutomu Ishikawa, Ryuichi Ogawa, Fumio Tosaka | 1990-02-27 |