Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6438566 | Document processing method and apparatus which can add comment data added to an original document to a revised document | Tadashi Yamakawa, Masaaki Nagashima, Takayuki Sasaki | 2002-08-20 |