Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6393563 | Temporary digital signature method and system | Hiroshi Maruyama | 2002-05-21 |
| 6311198 | Method and system for threading documents | Koichi Takeda | 2001-10-30 |
| 5844798 | Method and apparatus for machine translation | — | 1998-12-01 |