Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6884151 | Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation | Akio Sakai, Takaji Iwasawa, Hiroyuki Ikeda, Masami Tanaka | 2005-04-26 |