Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10224576 | Gas detection material, gas detection tape and lithium ion secondary battery | Takayuki Maruyama | 2019-03-05 |
| 7247417 | Optical recording medium and optical recording/reproducing method | Narutoshi Fukuzawa, Hiroshi Take | 2007-07-24 |
| 7221637 | Multi-level optical recording medium, multi-level recording method, and multi-level reproduction method | Hiroyuki Arioka, Syuji Tsukamoto | 2007-05-22 |
| 7193949 | Method for recording data on optical recording medium, device for recording data on optical recording medium, and optical recording medium | Syuji Tsukamoto | 2007-03-20 |
| 7167439 | Multilevel optical recording medium with calibration signals | Hiroshi Take, Hiroyuki Arioka, Narutoshi Fukuzawa, Shuji Tsukamoto, Motohiro Inoue | 2007-01-23 |
| 7102969 | Multi-level optical recording medium reproducing method and reproducing device | Syuji Tsukamoto, Hiroyuki Arioka, Narutoshi Fukuzawa, Hiroshi Take, Motohiro Inoue | 2006-09-05 |
| 7082088 | Optical recording medium and optical recording method by irradiation | Hiroyuki Arioka, Syuji Tsukamoto, Shirou Ootsuki | 2006-07-25 |
| 7022393 | Optical recording medium | Hiroyuki Arioka, Narutoshi Fukuzawa, Syuji Tsukamoto | 2006-04-04 |
| 6797374 | Magnetic read/write system and magnetic recording medium | Hideki Sasaki, Hiroyuki Yamada | 2004-09-28 |
| 6699557 | Optical recording medium and optical recording method | Hiroyuki Arioka, Syuji Tsukamoto, Shirou Ootsuki | 2004-03-02 |
| 6607824 | Magnetic read/write system and magnetic recording medium | Hideki Sasaki, Hiroyuki Yamada | 2003-08-19 |