Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695832 | Method of forming a hard-carbon-film-coated substrate | Hitoshi Hirano, Keiichi Kuramoto, Seiichi Kiyama | 1997-12-09 |
| 5691010 | Arc discharge plasma CVD method for forming diamond-like carbon films | Keiichi Kuramoto, Hitoshi Hirano, Seiichi Kiyama | 1997-11-25 |
| 5629086 | Hard-carbon-film-coated substrate and apparatus for forming the same | Hitoshi Hirano, Keiichi Kuramoto, Seiichi Kiyama | 1997-05-13 |
| 5626963 | Hard-carbon-film-coated substrate and apparatus for forming the same | Hitoshi Hirano, Keiichi Kuramoto, Seiichi Kiyama | 1997-05-06 |