Issued Patents All Time
Showing 101–109 of 109 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962066 | Method and device for manufacturing a thin film and magnetic recording medium | Yoshiharu Maezawa, Masaru Odagiri, Sadayuki Okazaki | 1999-10-05 |
| 5759710 | Magnetic recording medium with a magnetic layer having a specific oxygen signal strength profile in the thickness direction | Yoshiharu Maezawa, Masaru Odagiri, Sadayuki Okazaki | 1998-06-02 |
| 5604029 | Magnetic recording media and manufacturing method thereof | Yoshiharu Maezawa | 1997-02-18 |
| 5433999 | Magnetic recording medium comprising specific backcoat layer | Yoshiki Goto, Yukihiro Shimasaki, Tatsuaki Ishida, Kiyokazu Tohma, Ryuji Sugita +1 more | 1995-07-18 |
| 5202149 | Method for making a magnetic recording medium | Tatsuaki Ishida, Ryuji Sugita, Kiyokazu Tohma, Yasuhiro Kawawake, Yoshiki Goto | 1993-04-13 |
| 5087476 | Method of producing thin film | Kiyokazu Tohma, Ryuji Sugita, Yasuhiro Kawawake, Tatsuaki Ishida | 1992-02-11 |
| 4999220 | Method for manufacturing perpendicular magnetic recording medium | Ryuji Sugita, 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 | Ryuji Sugita, Kiyokazu Tohma, Taro Nanbu | 1989-08-22 |
| 4687712 | Vertical magnetic recording medium | Ryuji Sugita, Hiroshi Nishida, Kyoji Noda | 1987-08-18 |