Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42763 | Recording and/or reproducing device for disks | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2011-09-27 |
| RE42041 | Recording and/or reproducing device for disks | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2011-01-18 |
| 7102171 | Magnetic semiconductor material and method for preparation thereof | Katsuaki Sato, Gennadiy Medvedkin | 2006-09-05 |
| 6760283 | Disk recording and/or reproducing device with starting and ejection control means | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2004-07-06 |
| 6751181 | Recording and/or reproducing device for disks | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2004-06-15 |
| 6724713 | Recording and/or reproducing device for disks | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2004-04-20 |
| 6683828 | Disc holding device and disc recording and/or reproducing device including disc mounting mechanisms and bias mechanisms for biasing a disc towards the mounting mechanisms | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2004-01-27 |
| 6654319 | Disc recording and/or reproducing apparatus having control plates and space forming features | Tomohiro Watanabe, Kazuyuki Takizawa, Yoshiteru Taka, Toru Hama | 2003-11-25 |
| 6643227 | Disc recording and/or reproducing apparatus and disc exchanging mechanism | — | 2003-11-04 |
| 6342194 | NF3 treating process | Shinsuke Nakagawa | 2002-01-29 |
| 4565579 | Nonexplosive chemical composition for gently breaking rock or concrete mass | Isami Fujioka, Kazutoshi Imada, Motoyasu Nishimura | 1986-01-21 |