Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4270177 | Digital amplitude control for digital audio signal | Yoshiyuki Ishizawa, Masanori Tanaka, Koji Iwasaki | 1981-05-26 |
| 4224581 | Compander system having limiter in compressor and expander | Hiroshi Watanabe, Motokazu Ohkawa, Kazuo Kitagawa, Hideshi Kira | 1980-09-23 |
| 4187477 | Noise reduction system | Motokazu Ohkawa, Kazuo Kitagawa, Hideshi Kira | 1980-02-05 |
| 4187478 | Noise reduction system having specific encoder circuitry | Motokazu Ohkawa, Kazuo Kitagawa, Hideshi Kira | 1980-02-05 |