Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993497 | Magnetic disk and magnetic disk manufacturing method | Chor Boon Ang | 2011-08-09 |
| 6916558 | Magnetic disk using a glass substrate | Teiichiro Umezawa, Hiroshi Tomiyasu | 2005-07-12 |
| 6759138 | Antiferromagnetically coupled magnetic recording medium with dual-layered upper magnetic layer | Hiroshi Tomiyasu, Teiichiro Umezawa, Kenji Ayama | 2004-07-06 |
| 6287429 | Magnetic recording medium having an improved magnetic characteristic | Junichi Horikawa, Masato Kobayashi, Osamu Nozawa | 2001-09-11 |
| 5968679 | Magnetic recording medium and method of manufacturing the same | Masato Kobayashi, Jun Horikawa, Osamu Nozawa | 1999-10-19 |
| 5954927 | Method of manufacturing magnetic recording medium | Masato Kobayashi, Osamu Nozawa, Hisao Kawai, Takashi Sato, Junichi Horikawa | 1999-09-21 |
| 5900324 | Magnetic recording media, methods for producing the same and magnetic recorders | Takashi Sato, Jun Horikawa, Masato Kobayashi, Hisao Kawai, Osamu Nozawa | 1999-05-04 |
| 5824427 | Magnetic recording media and methods for producing the same | Masato Kobayashi, Jun Horikawa, Osamu Nozawa | 1998-10-20 |
| 5766727 | Magnetic recording medium and method for manufacturing the same | Kivoshi Sato, Isao Kawasumi, Hisao Kawai | 1998-06-16 |
| 5746893 | Method of manufacturing magnetic recording medium | Masato Kobayashi, Osamu Nozawa, Hisao Kawai, Takashi Sato, Junichi Horikawa | 1998-05-05 |
| 5100869 | Process for producing metal oxide-type superconductive material | Tsuyoshi Masumoto, Akihisa Inoue, Kunio Matsuzaki | 1992-03-31 |