Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4672612 | Error correction system in a teletext system | Hirohisa Shishikura, Ichiro Sase, Akio Yanagimachi, Osamu Yamada | 1987-06-09 |
| 4611228 | Scan line synchronizer | Toyotaka Machida, Hiroaki Matsumoto, Akira Nakamura, Tatsuya Shinyagaito | 1986-09-09 |