Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9153779 | Resistance change memory element and resistance change memory | Tomotaka ARIGA, Junichi Wada, Kouji Matsuo, Yoshio Ozawa | 2015-10-06 |
| 9006697 | Resistance change element and nonvolatile memory device | Junichi Wada, Kouji Matsuo, Tomotaka ARIGA, Yoshio Ozawa | 2015-04-14 |
| 7858166 | Phase change recording medium | Tsukasa Nakai, Sumio Ashida, Naomasa Nakamura, Keiichiro Yusu, Yasuhiro Satoh | 2010-12-28 |
| 7767285 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +1 more | 2010-08-03 |
| 7736715 | Optical recording medium, and information recording/playback apparatus and method using the medium | Tsukasa Nakai, Sumio Ashida, Naomasa Nakamura, Keiichiro Yusu, Yasuhiro Satoh | 2010-06-15 |
| 7510753 | Phase-change optical recording media | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Naomasa Nakamura | 2009-03-31 |
| 7357969 | Phase-change optical recording medium | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +1 more | 2008-04-15 |
| 7294382 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +1 more | 2007-11-13 |
| 7291375 | Phase-change optical recording medium | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +1 more | 2007-11-06 |
| 7214416 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +2 more | 2007-05-08 |
| 7132147 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Takayuki Tsukamoto, Naomasa Nakamura +1 more | 2006-11-07 |
| 6842419 | Optical information recording medium and optical disk drive | Naomasa Nakamura, Sumio Ashida, Keiichiro Yusu, Katsutaro Ichihara | 2005-01-11 |