Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7620614 | Method, program and apparatus for document retrieval system | Kazunari Sugiyama, Tadataka Matsubayashi, Katsushi Yako, Yasufumi Sato, Nobuo Kawamura | 2009-11-17 |
| 7200587 | Method of searching similar document, system for performing the same and program for processing the same | Tadataka Matsubayashi, Katsumi Tada, Yoshifumi Sato, Yasuhiko Inaba | 2007-04-03 |