Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796296 | PCM coder and decoder having function of two-wire/four-wire conversion | Eiichi Amada, Kazuo Yamakido, Shigeo Nishita, Masaru Kokubo | 1989-01-03 |
| 4787080 | PCM coder and decoder circuit having digital balancing network | Kazuo Yamakido, Shigeo Nishita, Kenichi Ohwada | 1988-11-22 |