Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479121 | Optical recording medium and method of fabricating same | Katsunari Hanaoka, Nobuaki Onagi, Makoto Harigaya | 2002-11-12 |
| 6455733 | Apparatus and method for recovering sorbic acid | — | 2002-09-24 |
| 6444164 | Apparatus for producing high-purity silver materials | Kishio Tayama, Takashi Ohgami | 2002-09-03 |
| 6371834 | Method for preparing glass substrate for magnetic recording medium | Akio Fujimura | 2002-04-16 |