Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10569584 | Tape cassette | Shimako Nakai, Tsutomu Kato | 2020-02-25 |
| 10173448 | Ribbon cassette including spring member for applying tension to ink ribbon | Susumu Murata | 2019-01-08 |
| 9550381 | Tape cassette | Mariko Niizeki, Tsutomu Kato, Hisako Tonishi, Masashi Iwamoto | 2017-01-24 |