Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5472506 | Method and apparatus for producing magnetic recording medium | Kiyokazu Tohma, Tatsuaki Ishida, Yasuaki Ban | 1995-12-05 |
| 5458914 | Method for producing magnetic recording medium | Kiyokazu Tohma, Tatsuaki Ishida, Yasuaki Ban | 1995-10-17 |
| 5433999 | Magnetic recording medium comprising specific backcoat layer | Yoshiki Goto, Yukihiro Shimasaki, Kazuyoshi Honda, Tatsuaki Ishida, Kiyokazu Tohma +1 more | 1995-07-18 |
| 5427869 | Magnetic recording medium and method for producing the same | Kiyokazu Tohma, Tatsuaki Ishida, Yasuaki Ban | 1995-06-27 |
| 5418059 | Magnetic recording medium and method for producing the same | Kiyokazu Tohma, Tatsuaki Ishida, Yasuaki Ban | 1995-05-23 |
| 5298282 | Production of magnetic recording medium | Kiyokazu Tohma, Tatsuaki Ishida | 1994-03-29 |
| 5202149 | Method for making a magnetic recording medium | Tatsuaki Ishida, Kiyokazu Tohma, Kazuyoshi Honda, Yasuhiro Kawawake, Yoshiki Goto | 1993-04-13 |
| 5087476 | Method of producing thin film | Kiyokazu Tohma, Kazuyoshi Honda, Yasuhiro Kawawake, Tatsuaki Ishida | 1992-02-11 |
| 4999220 | Method for manufacturing perpendicular magnetic recording medium | Kazuyoshi Honda, Kiyokazu Tohma, Yasuihiro Kawawake, Yoshiki Murakami | 1991-03-12 |
| 4859501 | Method for providing a perpendicular recording medium for use with a ring-shaped recording and reproducing head | Kiyokazu Tohma, Kazuyoshi Honda, Taro Nanbu | 1989-08-22 |
| 4745005 | Magnetic recording medium and method for making the same | Toshiaki Kunieda | 1988-05-17 |
| 4687712 | Vertical magnetic recording medium | Kazuyoshi Honda, Hiroshi Nishida, Kyoji Noda | 1987-08-18 |
| 4613918 | Perpendicular magnetic playback head and a perpendicular magnetic recording and reproducing device | Kenji Kanai, Seishi Sasaki, Ken Takahashi | 1986-09-23 |
| 4547398 | Method for manufacturing magnetic recording medium | Toshiaki Kunieda | 1985-10-15 |
| 4477488 | Method of manufacturing magnetic recording medium | Kenji Kanai, Seishi Sasaki, Ken Takahashi | 1984-10-16 |
| 4429016 | Magnetic recording medium with vacuum deposited magnetic layer | — | 1984-01-31 |
| 4399013 | Method of producing a magnetic recording medium | Toshiaki Kunieda | 1983-08-16 |
| 4385098 | Magnetic recording media | Toshiaki Kunieda, Hideki Yoshida | 1983-05-24 |