Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619292 | Tip paper predrying apparatus | — | 2003-09-16 |
| 6517422 | Polishing apparatus and method thereof | Takao Sakamoto, Shinya Kawamoto, Katsuaki Kotari, Katsuyoshi Kojima, Yoshihiko Hoshi | 2003-02-11 |