Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8676024 | Method and apparatus for generating data representing digests of pictures | Shin Nakate | 2014-03-18 |
| 8331756 | Method and apparatus for generating data representing digests of pictures | Shin Nakate | 2012-12-11 |
| 8260122 | 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, Kenjiro Ueda | 2012-09-04 |
| 8131135 | 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, Kenjiro Ueda | 2012-03-06 |
| 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, Kenjiro Ueda | 2007-11-06 |
| 7254234 | Method and apparatus for encrypting and decrypting information | Takayuki Sugahara, Seiji Higurashi, Toshio Kuroiwa, Kenjiro Ueda | 2007-08-07 |
| 7155011 | Encryption method, decryption method, and recording and reproducing apparatus | Kenjiro Ueda, Takayuki Sugahara, 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 | Takayuki Sugahara, Kenjiro Ueda, Toshio Kuroiwa, Seiji Higurashi | 2006-04-04 |
| 6975730 | Method and apparatus for contents information | Toshio Kuroiwa, Takayuki Sugahara, Kenjiro Ueda, Seiji Higurashi | 2005-12-13 |
| 6891951 | Cryptosystem-related method and apparatus | Takayuki Sugahara, Toshio Kuroiwa, Kenjiro Ueda, Seiji Higurashi | 2005-05-10 |
| 6889323 | Method and apparatus for contents information | Takayuki Sugahara, Toshio Kuroiwa, Kenjiro Ueda, Seiji Higurashi | 2005-05-03 |
| 6889327 | Copyrighted digital data management method, contents provider, user terminal, and data recording medium | — | 2005-05-03 |