Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8337282 | Polishing pad | Jaehong Park, Shinichi Matsumura, Kouichi Yoshida, Masaharu Kinoshita | 2012-12-25 |
| 6190746 | Polishing cloth and a method for attaching/detaching the polishing cloth to/from a base plate of a polishing machine | Hideyuki Ishii | 2001-02-20 |
| 5645474 | Workpiece retaining device and method for producing the same | Naoto Kubo, Hideyuki Ishii | 1997-07-08 |