Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880509 | Electrolytic finishing method and apparatus | Youhei Kuwabara, Teruo Asaoka, Shogo Yoshioka | 1989-11-14 |
| 4800006 | Electrolytic finishing system and method | Youhei Kuwabara, Teruo Asaoka, Masayoshi Moriya, Yasuhiro Iwasaki | 1989-01-24 |