Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480963 | Network system for transporting security-protected data | Hirotaka Tachibana, Seigo Kotani, Takehiko Hayashi | 2002-11-12 |
| 6144745 | Method of and apparatus for retaining and verifying of data on recording medium | Ryota Akiyama, Gengo Tazaki | 2000-11-07 |
| 5751577 | Production data preparing system for producing a metal mask plate | Akira Sakai, Miki Ichikawa | 1998-05-12 |