Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11478850 | Continuous producing method of beryllium metal sphere | Katsuyoshi Tatenuma, Yuri Natori, Norihiro Ikemoto, Yoshiaki Akatsu, Tomohiko Kawakami | 2022-10-25 |
| 9418694 | Optical recording method, optical recording medium, optical recording medium recording apparatus, optical recording apparatus, optical disk, and optical disk recording/reproducing apparatus | Hiroshi Tabata, Yasuhiro Ueki | 2016-08-16 |
| 9025424 | Optical recording method, optical recording medium, optical recording medium recording apparatus, optical recording apparatus, optical disk, and optical disk recording/reproducing apparatus | Hiroshi Tabata, Yasuhiro Ueki | 2015-05-05 |
| 7668071 | Phase-change optical recording medium having tracking signal smaller than saturation value | Kenichi Shimomai, Ikuo Matsumoto, Kenji Tokui, Hiroshi Tabata | 2010-02-23 |
| 7564769 | Phase-change recording medium having the relation between pulse patterns and reflectivity of un-recorded section | Ikuo Matsumoto, Hiroshi Tabata, Kenji Tokui, Kenichi Shimomai | 2009-07-21 |
| 7376065 | Optical recording method, optical recording apparatus and optical storage medium | Hiroshi Tabata, Ikuo Matsumoto, Kenji Tokui, Kenichi Shimomai | 2008-05-20 |
| 7336596 | Optical storage medium | Ikuo Matsumoto, Kenji Tokui, Kenichi Shimomai, Hiroshi Tabata | 2008-02-26 |
| 5257230 | Memory device including redundancy cells with programmable fuel elements and process of manufacturing the same | Kazuhiko Nobori, Taira Iwase, Masamichi Asano, Makoto Takizawa, Shigefumi Ishiguro +2 more | 1993-10-26 |