Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9391136 | Semiconductor device | Hiroko Kawaguchi, Hiromichi Kumakura, Toru Yoshie | 2016-07-12 |
| 6839318 | Optical information recording medium having ultraviolet-curing resin and adhesive layers and method of manufacturing same | — | 2005-01-04 |
| 6657946 | Phase change type optical disk having different reflectances at crystalline and amorphous states | — | 2003-12-02 |
| 6646978 | Optical storage medium with improved substrate structure to provide uniform signal quality | Tatsunori Ide | 2003-11-11 |
| 6203877 | Optical information recording medium | — | 2001-03-20 |
| 6064642 | Phase-change type optical disk | — | 2000-05-16 |
| 5731994 | Method of packing particles into vessels and apparatus therefor | Kazunari Naya | 1998-03-24 |
| 5641230 | Method of determining cloud points and cloud point meter | — | 1997-06-24 |
| 5565978 | Total-reflection type refractive index sensor | Yasushi Nagasawa, Kazunari Naya | 1996-10-15 |