Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5888680 | Method for recording on optical recording media | Gentaro Ohbayashi, Kunihisa Nagino, Kusato Hirota, Takao Amioka | 1999-03-30 |
| 5863702 | Optical recording media | Gentaro Ohbayashi, Kunihisa Nagino, Kusato Hirota, Takao Amioka | 1999-01-26 |
| 5372990 | Oxide superconductor | Kazuharu Shimizu | 1994-12-13 |
| 4770929 | Light-weight composite material | Kazuharu Shimizu | 1988-09-13 |