| 6187441 |
Glass substrate for information recording medium and magnetic recording medium having the substrate |
Kunio Takeuchi |
2001-02-13 |
| 5916656 |
Sheet glass flattening method, method of manufacturing an information recording glass substrate using flattened glass, method of manufacturing a magnetic disk using glass substrate, and magnetic recording medium |
Kazuhiko Sekiguchi, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Tak Kojima |
1999-06-29 |
| 5725625 |
Method of manufacturing a magnetic recording disk using glass substrate |
Kazuhiko Sekiguchi, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima |
1998-03-10 |
| 5681609 |
Method of manufacturing a magnetic recording disk |
Kazuhiko Sekiguchi, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima |
1997-10-28 |
| 5654057 |
Sheet glass flattening method, method of manufacturing glass substrate for an information recording disk using flattened glass, method of manufacturing a magnetic recording disk using glass substrate, and magnetic recording medium |
Kazuhiko Sekiguchi, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima |
1997-08-05 |