Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6183344 | Method for grinding glass funnel seal edge and apparatus therefor | Yoshihiro Tsuchimoto, Shinji Tanaka | 2001-02-06 |
| 5032238 | Method of and apparatus for electropolishing and grinding | Kazuhiko Ishimura, Ikuo Nagasawa, Naohiro Hotta | 1991-07-16 |