Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D311391 | Data recording cartridge for language learning machine | Hidekiyo Kushima, Shinichi Ishigame | 1990-10-16 |
| 4874934 | IC card which displays embossed information to prevent counterfeiting | Jirou Nakahara, Shiro Okajima | 1989-10-17 |
| 4690268 | Sheet convey apparatus | — | 1987-09-01 |
| 4629382 | Sheet collecting apparatus | — | 1986-12-16 |