Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9593424 | Sulfuric acid recycling type cleaning system and a sulfuric acid recycling type persulfuric acid supply apparatus | Tatsuo Nagai, Haruyoshi Yamakawa, Hideki Kobayashi, Hiroshi Morita | 2017-03-14 |
| 5384167 | Method for the surface treatment of a metal by atmospheric pressure plasma | Atsushi Nishiwaki, Hiroshi Uchiyama, Hideo Inagaki, Yasuo Sawada, Kazumi Ogino | 1995-01-24 |