Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462767 | Virtual proximity service control system | Akihiko Obata | 2002-10-08 |
| 6452746 | Tape cassette | Hitomi Chiba | 2002-09-17 |
| 6405242 | Computer terminal operation system | Satoru Watanabe, Ryuichi Matsukura, Tohru Okahara | 2002-06-11 |
| 6335739 | Terminal operation system | Ryuichi Matsukura, Satoru Watanabe | 2002-01-01 |