Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435949 | Workpiece polishing apparatus comprising a fluid pressure bag provided between a pressing surface and the workpiece and method of use thereof | Seiji Katsuoka, Hozumi Yasuda, Tadakazu Sone, Manabu Tsujimura | 2002-08-20 |
| 6409582 | Polishing apparatus | Tetsuji Togawa, Kuniaki Yamaguchi, Toyomi Nishi | 2002-06-25 |