Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837645 | Drive mechanism for cassette-enclosed magnetic tape | Ritsu Miyamoto, Eiichi Tsuchiya, Toshiaki Shimizu, Atsushi Hosoya | 1989-06-06 |
| 4807064 | Tape loading system for wrapping a tape of a tape cassette around a guide drum | Ritsu Miyamoto, Eiichi Tsuchiya, Toshiaki Shimizu, Atsushi Hosoya | 1989-02-21 |