Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818576 | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied | Mikio Ikenishi, Atsuko Morita | 2004-11-16 |
| 6786064 | Process for the production of glass molded article | Kazutaka Hayashi, Hiromasa Tawarayama, Hiroshi Kawazoe | 2004-09-07 |
| 6774072 | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate | Kouji Azegami | 2004-08-10 |