Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872247 | Combination roll | Hironori Nakamura, Toshiaki Yotsui, Toshiaki Umetsubo, Hideo Ohkawa | 1989-10-10 |
| 4551755 | Television bandwidth correcting system | Kouichi Matsuda | 1985-11-05 |