Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5467630 | Method for working terminal part of material for vertical suspension type surface treatment | Kiyomitsu Matsushima | 1995-11-21 |
| 5249729 | Method for forming hook engaging part in thermal part of material for vertical suspension type surface treatment | Jingo Kuwana | 1993-10-05 |
| 4225398 | Method of improving the corrosion resistance of an anodically oxidized surface film on aluminum articles | Mutsuo Hasegawa, Hatsuo Hirono, Shinji Hayashi, Hiroshi Yamagata | 1980-09-30 |
| 4210499 | Method of forming colored patterns on aluminum or its alloys | Hatsuo Hirono, Nobushige Doguchi | 1980-07-01 |
| 4210695 | Method of forming colored patterns on aluminum or its alloys | Hatsuo Hirono, Nobushige Doguchi | 1980-07-01 |