Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6303227 | Lubricant composition magnetic recording medium, and process for producing magnetic recording medium | Kenji Kuwahara, Yukikazu Ohchi, Tetuo Fuchi | 2001-10-16 |
| 5798135 | Method for producing a magnetic recording medium having a carbon protective layer | Hideyuki Ueda, Hiroshi Seki, Kenji Kuwahara, Kiyosi Takahasi, Masaru Odagiri +1 more | 1998-08-25 |
| 5776602 | Magnetic recording medium having a carbon protective film containing nitrogen and oxygen and overcoated with a lubricant | Hideyuki Ueda, Kenji Kuwahara, Hiroshi Seki, Sadayuki Okazaki, Masaru Odagiri +1 more | 1998-07-07 |
| 5670107 | Method for producing magnetic recording medium | Kenji Kuwahara, Kiyosi Takahasi, Hideyuki Ueda, Noriyasu Echigo, Masaru Odagiri | 1997-09-23 |
| 5637393 | Magnetic recording medium and its manufacturing method | Hideyuki Ueda, Kenji Kuwahara, Hiroshi Seki, Kiyoshi Takahashi, Masaru Odagiri +1 more | 1997-06-10 |
| 5591481 | Method of manufacturing a magnetic recording medium including forming a graft polymer lubricant layer by irradiating monomers with radicals or atomic gas | Kiyoshi Takahashi, Masaru Odagiri, Hideyuki Ueda | 1997-01-07 |
| 5589263 | Magnetic recording medium having a ferromagnetic metal thin film, a dry etched layer, a carbonaceous film, and a lubricant film | Hideyuki Ueda, Hiroshi Seki, Kenji Kuwahara, Kiyosi Takahasi, Masaru Odagiri +1 more | 1996-12-31 |
| 5540957 | Method of manufacturing a magnetic recording medium | Hideyuki Ueda, Kenji Kuwahara, Hiroshi Seki, Kiyoshi Takahashi, Masaru Odagiri +1 more | 1996-07-30 |
| 5496595 | Method for forming film by plasma CVD | Hideyuki Ueda, Kenji Kuwahara, Hiroshi Seki, Kiyosi Takahasi, Masaru Odagiri | 1996-03-05 |
| 5494742 | Magnetic recording medium having improved running time and corrosion resistance | Hiroshi Seki, Kenji Kuwahara, Hideyuki Ueda, Kiyosi Takahasi, Masaru Odagiri | 1996-02-27 |
| 5451427 | Magnetic recording medium and method of producing the same | Kiyoshi Takahashi, Masaru Odagiri | 1995-09-19 |
| 5443888 | Magnetic recording medium having a carbon protective layer and partially fluorinated alkyl carboxylic acid lubricant layer | Kiyoshi Takahashi, Masaru Odagiri, Yoshiaki Kai, Takashi Suzuki, Toshiaki Kunieda | 1995-08-22 |
| 5364690 | Magnetic recording medium comprising a ferromagnetic metal film and two carbon protective layers | Kiyoshi Takahashi, Masaru Odagiri, Hideyuki Ueda, Yukikazu Ohchi, Tatsuya Hiwatashi | 1994-11-15 |
| 5328737 | Method of forming film by plasma CVD | Kiyoshi Takahashi, Masaru Odagiri, Hideyuki Ueda, Yukikazu Ohchi, Tatsuya Hiwatashi | 1994-07-12 |
| 5322716 | Method for producing magnetic recording medium | Kiyoshi Takahashi, Masaru Odagiri | 1994-06-21 |
| 5302424 | Method for forming a film with plasma CVD process | Kiyoshi Takahashi, Masaru Odagiri, Hideyuki Ueda | 1994-04-12 |
| 5182132 | Magnetic recording medium and method for making it | Kiyoshi Takahashi, Masaru Odagiri, Yoshiaki Kai, Takashi Suzuki, Toshiaki Kunieda | 1993-01-26 |
| 5137784 | Magnetic record medium with a magnetic layer coated with successive layers of carbon, organic amine, and fluoro lubricant | Takashi Suzuki, Yoshiaki Kai, Kiyoshi Takahashi, Takatoshi Minoda, Hidetoshi Matsumoto | 1992-08-11 |
| 5110676 | Magnetic recording medium incorporating metallic magnetic thin film | Kiyoshi Takahashi, Masaru Odagiri | 1992-05-05 |
| 5104685 | Method of producing magnetic recording medium | Kiyoshi Takahashi, Masaru Odagiri | 1992-04-14 |
| 4645703 | Magnetic recording medium | Takashi Suzuki, Kunio Hibino, Shigeki Kawase, Koichi Shinohara, Norimoto Nouchi | 1987-02-24 |
| 4540618 | Magnetic recording medium | Takashi Suzuki, Kunio Hibino, Shigeki Kawase, Koichi Shinohara | 1985-09-10 |
| 4425404 | Magnetic recording medium | Takashi Suzuki, Kunio Hibino, Takashi Fujita | 1984-01-10 |