Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4233108 | Process for use in etching the outer surface of a metal member | Masamitu Tamura, Shigeharu Nakamura, Masaru Sakai, Kazuo Akagi, Ryohei Kazihata +1 more | 1980-11-11 |