Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5427869 | Magnetic recording medium and method for producing the same | Ryuji Sugita, Tatsuaki Ishida, Yasuaki Ban | 1995-06-27 |
| 5418059 | Magnetic recording medium and method for producing the same | Ryuji Sugita, Tatsuaki Ishida, Yasuaki Ban | 1995-05-23 |
| 5298282 | Production of magnetic recording medium | Ryuji Sugita, Tatsuaki Ishida | 1994-03-29 |
| 5202149 | Method for making a magnetic recording medium | Tatsuaki Ishida, Ryuji Sugita, Kazuyoshi Honda, Yasuhiro Kawawake, Yoshiki Goto | 1993-04-13 |
| 5087476 | Method of producing thin film | Ryuji Sugita, Kazuyoshi Honda, Yasuhiro Kawawake, Tatsuaki Ishida | 1992-02-11 |
| 4999220 | Method for manufacturing perpendicular magnetic recording medium | Kazuyoshi Honda, Ryuji Sugita, 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 | Ryuji Sugita, Kazuyoshi Honda, Taro Nanbu | 1989-08-22 |