Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5554418 | Method of forming passivation film | Kazuyuki Ito, Michio Ishikawa, Jun Togawa, Noriaki Tani, Masanori Hashimoto +1 more | 1996-09-10 |
| 5288329 | Chemical vapor deposition apparatus of in-line type | Michio Ishikawa, Kazuyuki Ito, Noriaki Tani, Masanori Hashimoto, Yoshifumi Ota | 1994-02-22 |
| 5250339 | Magnetic recording medium | Noriaki Tani, Michio Ishikawa, Masanori Hashimoto, Yoshifumi Ota | 1993-10-05 |
| 5198309 | Magnetic recording member | Yoshifumi Ota, Taiki Yamada, Michio Ishikawa, Noriaki Tani | 1993-03-30 |
| 5180476 | Method for producing transparent conductive films | Satoru Ishibashi, Yasushi Higuchi, Takashi Komatsu, Yuzo Murata, Yoshifumi Ota | 1993-01-19 |
| 5147734 | Magnetic recording media manufactured by a process in which a negative bias voltage is applied to the substrate during sputtering | Yoshifumi Ota, Michio Ishikawa, Noriaki Tani, Masanori Hashimoto | 1992-09-15 |
| 5116479 | Process for producing transparent conductive film comprising indium oxide | Satoru Ishibashi, Yoshifumi Ota, Yasushi Higuchi | 1992-05-26 |
| 5069983 | Magnetic recording member | Yoshifumi Ota, Michio Ishikawa, Noriaki Tani, Masanori Hashimoto, Yuzo Murata | 1991-12-03 |
| 5024854 | Method of manufacturing perpendicular type magnetic recording member | Yoshifumi Ota, Taiki Yamada | 1991-06-18 |
| 4832810 | Co-based alloy sputter target and process of manufacturing the same | Yoshifumi Ota, Taiki Yamada, Michio Ishikawa, Noriaki Tani, Yasushi Higuchi | 1989-05-23 |
| 4804590 | Abrasion resistant magnetic recording member | Yoshifumi Ota, Taiki Yamada, Michio Ishikawa, Noriaki Tani | 1989-02-14 |
| 4683176 | Optical magnetic recording member | Yoshifumi Ota, Tsutomu Asaka | 1987-07-28 |
| 4661420 | Optical magnetic recording member | Yoshifumi Ota, Shin Asari, Tsutomu Asaka | 1987-04-28 |
| 4655167 | Apparatus for manufacturing of abrasion resistant magnetic recording product | Yoshifumi Ota | 1987-04-07 |
| 4587179 | Magnetic recording medium and manufacturing process thereof | Yoshifumi Ota | 1986-05-06 |
| 4581245 | Method of manufacturing of abrasion resisting magnetic recording product | Yoshifumi Ota | 1986-04-08 |
| 4412907 | Ferromagnetic high speed sputtering apparatus | Akio Ito, Yoshifumi Ota, Taiki Yamada | 1983-11-01 |
| 4401546 | Ferromagnetic high speed sputtering apparatus | Yoshifumi Ohta, Taiki Yamada | 1983-08-30 |