Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577459 | Method and apparatus for magnetic transfer | Kazunori Komatsu, Masakazu Nishikawa | 2003-06-10 |
| 6570724 | Method and apparatus for magnetic transfer | Kazunori Komatsu, Masakazu Nishikawa | 2003-05-27 |
| 6433944 | Master carrier for magnetic transfer and method for transfer | Kazutoshi Katayama, Ryuji Sugita | 2002-08-13 |
| 5404722 | Torque generator with reduced backlash | Dwight B. Stephenson | 1995-04-11 |
| 5348811 | Recording medium and method of performing recording/producing on the recording medium | Goro Akashi | 1994-09-20 |
| 5181258 | Linear pattern recognizing method | Keiji Terada | 1993-01-19 |
| 5061562 | Method for preparing a magnetic recording medium and a magnetic disk using the same | Fusao Yamanaka, Yasuyuki Yamada, Kazuhiko Morita | 1991-10-29 |
| 5020618 | Full hydraulic power steering apparatus | — | 1991-06-04 |
| 4994305 | Method for producing magnetic recording medium | Fusao Yamanaka, Kazuhiko Morita | 1991-02-19 |
| 4994321 | Perpendicular magnetic recording medium and the method for preparing the same | Kunihiko Sano, Fusao Yamanaka, Akira Nahara | 1991-02-19 |
| 4956229 | Magnetic recording medium | Tadashi Yasunaga, Akio Yanai, Koji Sasazawa | 1990-09-11 |
| 4869797 | Method for preparing a magnetic recording medium | Kunihiko Sano, Fusao Yamanaka, Akira Nahara | 1989-09-26 |
| 4867101 | Apparatus for producing magnetic recording medium | Fusao Yamanaka, Akira Nahara | 1989-09-19 |
| 4868070 | Vertical magnetization type recording medium and manufacturing method therefor | Fusao Yamanaka, Akira Nahara | 1989-09-19 |
| 4865878 | Method of manufacturing vertical magnetization type recording medium | Fusao Yamanaka, Akira Nahara | 1989-09-12 |
| 4840843 | Magnetic recording medium | Kunihiko Sano, Akira Nahara, Yasuo Nishikawa, Hiroyuki Iwasaki | 1989-06-20 |
| 4799244 | Surface acoustical wave charge transfer device having a plurality of stationary charge carrier storage portions | Nobuo Mikoshiba, Kazuo Tsubouchi | 1989-01-17 |
| 4748592 | Recording and reproducing method by a change in composition on a solid surface | Akira Nahara, Goro Akashi | 1988-05-31 |
| 4717592 | Vertical magnetization type recording medium and manufacturing method therefor | Fusao Yamanaka, Kunihiko Sano, Akira Nahara | 1988-01-05 |
| 4609962 | Magnetic recording medium having improved weather resistance | Yoshihiro Arai, Akira Nahara, Kiyotaka Fukino | 1986-09-02 |
| 4536443 | Magnetic recording medium | Akira Nahara | 1985-08-20 |
| 4521481 | Magnetic recording medium | Akira Nahara | 1985-06-04 |
| 4511635 | Magnetic recording medium | Akira Nahara | 1985-04-16 |
| 4501225 | Apparatus for making a magnetic recording medium | Akira Nahara, Goro Akashi | 1985-02-26 |
| 4476000 | Method of making a magnetic film target for sputtering | Akira Nahara, Yoshihiro Arai | 1984-10-09 |