Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6910634 | Information input/ output unit | Satoshi Kawamura, Shin Shimizu, Toshiyuki Kaneko | 2005-06-28 |
| 6837438 | Non-contact information medium and communication system utilizing the same | Wasao Takasugi | 2005-01-04 |
| 6385407 | Accommodating enclosure and management system | — | 2002-05-07 |
| 6344824 | Noncontact communication semiconductor device | Wasao Takasugi | 2002-02-05 |
| 4241240 | Optical information recording apparatus | Kazuo Shigematsu, Keizo Kato, Toshimitsu Miyauchi, Seiji Yonezawa, Kimio Tatsuno +1 more | 1980-12-23 |
| 4228329 | Compact keyboard structure | Hirohide Endo, Akio Komatsu | 1980-10-14 |