Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9123360 | Oxide sputtering target and protective film for optical recording medium | Atsushi Saito | 2015-09-01 |
| 5738947 | Corrosion-resistant film for protecting surfaces of Ag and corrosion-resist composite structures | Kenichi Hijikata | 1998-04-14 |
| 5630886 | Corrosion-resistant film for protecting surfaces of Ag and corrosion-resist composite structures | Kenichi Hijikata | 1997-05-20 |
| 5612133 | Magneto-optical recording medium having a refelecting layer of a silver-magnesium alloy having a magnesium oxide coating | Kenichi Hijikata | 1997-03-18 |