Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8357189 | Physiology enhancing device | Toru Ugajin, Michihito Igaki, Katsutoshi Hara, Yoshinao Nagashima, Shuji Ishikawa +1 more | 2013-01-22 |
| 6284361 | Magnetic recording medium and process for producing the same | Hideyuki Kobayashi, Masayasu Sato | 2001-09-04 |
| 6139937 | Magnetic recording medium | Makoto Sato, Hideyuki Kobayashi | 2000-10-31 |
| 6103340 | Magnetic recording medium | Hiroki Kubo, Hideyuki Kobayashi | 2000-08-15 |
| 6063489 | Magnetic recording medium comprising a mixed magnetic region having a thickness relative to the total thickness of magnetic layers | Hideyuki Kobayashi, Hidehiko Nakayama, Akira Ishikawa | 2000-05-16 |
| 5814394 | Magnetic recording medium | Akira Ishikawa, Hidehiko Nakayama | 1998-09-29 |
| 5795642 | Magnetic recording medium | Akira Ishikawa, Hidehiko Nakayama | 1998-08-18 |
| 5792570 | Magnetic recording medium | Akira Ishikawa, Hidehiko Nakayama | 1998-08-11 |
| 5789063 | Magnetic recording medium | Akira Ishikawa, Hidehiko Nakayama | 1998-08-04 |
| 5718978 | Magnetic recording medium having a magnetic layer which includes magnetic particles, polurethane resin, vinyl chloride copolymer, and an amine compound | Hidehiko Nakayama, Akira Ishikawa | 1998-02-17 |
| 5705268 | Magnetic recording medium with magnetic powder in lower magnetic layer having protective image diameters | Akira Ishikawa, Hidehiko Nakayama | 1998-01-06 |
| 5629075 | Magnetic recording medium having a substrate containing magnetic powder | Akira Ishikawa, Hidehiko Nakayama | 1997-05-13 |
| 4808895 | Acceleration control apparatus | Jun Fujita, Yoshinori Nakanishi, Etsuzi Oda | 1989-02-28 |
| 4795955 | Position control apparatus | — | 1989-01-03 |