Issued Patents All Time
Showing 76–83 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7292782 | MPEG picture data recording apparatus, MPEG picture data recording method, MPEG picture data recording medium, MPEG picture data generating apparatus, MPEG picture data reproducing apparatus, and MPEG picture data reproducing method | Takayuki Sugahara, Seiji Higurashi, Toshio Kuroiwa, Wataru Inoha | 2007-11-06 |
| 7293180 | Apparatus, method and program for data processing, and apparatus, method and program for tamper detection | Masayoshi Nishitani, Takayuki Sugahara | 2007-11-06 |
| 7254234 | Method and apparatus for encrypting and decrypting information | Takayuki Sugahara, Wataru Inoha, Seiji Higurashi, Toshio Kuroiwa | 2007-08-07 |
| 7155011 | Encryption method, decryption method, and recording and reproducing apparatus | Takayuki Sugahara, Wataru Inoha, Seiji Higurashi, Toshio Kuroiwa | 2006-12-26 |
| 7024561 | Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method | Wataru Inoha, Takayuki Sugahara, Toshio Kuroiwa, Seiji Higurashi | 2006-04-04 |
| 6975730 | Method and apparatus for contents information | Toshio Kuroiwa, Takayuki Sugahara, Wataru Inoha, Seiji Higurashi | 2005-12-13 |
| 6891951 | Cryptosystem-related method and apparatus | Wataru Inoha, Takayuki Sugahara, Toshio Kuroiwa, Seiji Higurashi | 2005-05-10 |
| 6889323 | Method and apparatus for contents information | Takayuki Sugahara, Toshio Kuroiwa, Wataru Inoha, Seiji Higurashi | 2005-05-03 |