Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |