Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958542 | Thin film magnetic disc and method of manufacturing the disc | Mitsuyoshi Ootake, Yoshinori Honda, Akira Kato, Hiroaki Hagimae, Heigo Ishihara +1 more | 1999-09-28 |
| 5651867 | Plasma processing method and apparatus | Hiroyuki Kataoka, Makoto Kitoh, Shigehiko Fujimaki, Satoshi Matsunuma, Kenji Furusawa +3 more | 1997-07-29 |
| 5409738 | Recording medium | Satoshi Matsunuma, Makoto Kitoh, Shigehiko Fujimaki | 1995-04-25 |
| 5300189 | Plasma surface treatment method and apparatus | Makoto Kitoh, Yoshinori Honda | 1994-04-05 |
| 5275850 | Process for producing a magnetic disk having a metal containing hard carbon coating by plasma chemical vapor deposition under a negative self bias | Makoto Kitoh, Makiko Itoh | 1994-01-04 |
| 5104709 | Magnetic recording medium which includes a protective layer, an adhesion strengthening substance and a lubricant layer | Satoshi Matsunuma, Shigehiko Fujimaki, Makoto Kitoh, Kenji Furusawa | 1992-04-14 |
| 5073243 | Method for producing an optical recording medium | Akira Gotoh, Yukinobu Yamazaki, Naoyuki Kikuchi, Shinkichi Horigome, Motoyasu Terao +3 more | 1991-12-17 |
| 4908250 | Optical recording medium and production method thereof | Akira Gotoh, Yukinobu Yamazaki, Naoyuki Kikuchi, Shinkichi Horigome, Motoyasu Terao +3 more | 1990-03-13 |