Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025796 | Method for evaluating the quality of abrasive grains, polishing method and abrasive for polishing glass | Hirotsugu Komiya, Tetsufumi Hisatsune, Atsuyoshi Takenaka, Shigeaki Yonemori | 2006-04-11 |
| 6602111 | Abrasive | Yoshinori Fujie | 2003-08-05 |
| 6428392 | Abrasive | Kazuo Sunahara | 2002-08-06 |