Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6572442 | Method and apparatus for forming grooves on a workpiece and for dressing a grindstone used in the groove formation | Akio Sakai, Katsuyuki Yamamoto, Hiroyuki Ikeda, Masami Tanaka | 2003-06-03 |