Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741496 | Tape cartridge | Hikaru Mizutani, Hiroyoshi Takagi, Harutaka Hayashi | 1988-05-03 |
| 4658981 | Recording tape cartridge | Shinichi Goto | 1987-04-21 |
| 4556153 | Magnetic recording tape cartridge | Hiroyoshi Takagi, Hikaru Mizutani | 1985-12-03 |