Issued Patents All Time
Showing 51–75 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7239703 | Copyright protection system for data storage and transmission | Seiji Higurashi | 2007-07-03 |
| 7174030 | Method and apparatus for embedding and reproducing watermark into and from contents data | Masayoshi Nishitani | 2007-02-06 |
| 7155011 | Encryption method, decryption method, and recording and reproducing apparatus | Kenjiro Ueda, Wataru Inoha, Seiji Higurashi, Toshio Kuroiwa | 2006-12-26 |
| 7113612 | Apparatus for embedding and reproducing watermark into and from contents data | Masayoshi Nishitani | 2006-09-26 |
| 7024561 | Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method | Wataru Inoha, Kenjiro Ueda, Toshio Kuroiwa, Seiji Higurashi | 2006-04-04 |
| 7010031 | Apparatus for protection of data reproduction according to protection data and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at all | — | 2006-03-07 |
| 7003046 | Modulation system | Atsushi Hayami | 2006-02-21 |
| 6987806 | APPARATUS FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO CONVEYED MEDIUM PROTECTION DATA, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM, TO DETERMINE WHETHER MAIN DATA ARE REPRODUCED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL AND A RANGE OF PROTECTION LEVEL THEREFOR | — | 2006-01-17 |
| 6985525 | METHOD FOR PROTECTION OF DATA DECODING ACCORDING TO MEDIUM PROTECTION DATA AND FIRST AND SECOND APPARATUS PROTECTION DATA TO DETERMINE A RANGE OF PROTECTION FOR MAIN DATA AND WHETHER SAID MAIN DATA ARE DECODED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL | — | 2006-01-10 |
| 6975730 | Method and apparatus for contents information | Toshio Kuroiwa, Wataru Inoha, Kenjiro Ueda, Seiji Higurashi | 2005-12-13 |
| 6970505 | APPARATUS FOR PROTECTION OF DATA DECODING ACCORDING TO TRANSFERRED MEDIUM PROTECTION DATA, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM, TO DETERMINE WHETHER MAIN DATA ARE DECODED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL | — | 2005-11-29 |
| 6963607 | METHOD FOR PROTECTION OF DATA TRANSMISSION ACCORDING TO MEDIUM PROTECTION DATA AND FIRST AND SECOND ADDITIONAL PROTECTION DATA TO DETERMINE A RANGE OF PROTECTION FOR MAIN DATA AND WHETHER THE MAIN DATA ARE TRANSMITTED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL | — | 2005-11-08 |
| 6959039 | APPARATUS FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO MEDIUM PROTECTION DATA AND FIRST AND SECOND APPARATUS PROTECTION DATA, TO DETERMINE WHETHER MAIN DATA ARE REPRODUCED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL AND A RANGE OF PROTECTION LEVEL THEREFOR | — | 2005-10-25 |
| 6954497 | METHOD FOR PROTECTION OF DATA DECODING ACCORDING TO TRANSFERRED MEDIUM PROTECTION DATA, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM, TO DETERMINE WHETHER MAIN DATA ARE DECODED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL | — | 2005-10-11 |
| 6947663 | Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof | Kazuo Koda, Seiji Higurashi | 2005-09-20 |
| 6922442 | Apparatus and method of encoding moving picture signal | Kazuhiko Morita, Mitsuaki Fujiwara | 2005-07-26 |
| 6909784 | Recording apparatus and recording method of electronic watermark | — | 2005-06-21 |
| 6904090 | METHOD FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO MEDIUM PROTECTION DATA, POSITION INFORMATION AND FIRST AND SECOND APPARATUS PROTECTION DATA TO DETERMINE A RANGE OF PROTECTION FOR MAIN DATA AT SPECIFIED POSITIONS AND WHETHER SAID MAIN DATA ARE REPRODUCED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL | — | 2005-06-07 |
| 6891951 | Cryptosystem-related method and apparatus | Wataru Inoha, Toshio Kuroiwa, Kenjiro Ueda, Seiji Higurashi | 2005-05-10 |
| 6889323 | Method and apparatus for contents information | Toshio Kuroiwa, Wataru Inoha, Kenjiro Ueda, Seiji Higurashi | 2005-05-03 |
| 6888967 | Data coding method and apparatus therefor | Junzo Suzuki | 2005-05-03 |
| 6876700 | METHOD FOR PROTECTION OF DATA DECODING ACCORDING TO TRANSFERRED PROTECTION DATA, FIRST AND SECOND APPARATUS PROTECTION DATA AND A FILM CLASSIFICATION SYSTEM, TO DETERMINE WHETHER MAIN DATA ARE DECODED IN THEIR ENTIRETY, PARTIALLY, OR NOT AT ALL AND A RANGE OF PROTECTION LEVEL THEREFOR | — | 2005-04-05 |
| 6853320 | Modulation system | Atsushi Hayami | 2005-02-08 |
| 6834349 | Copyright protection system for data storage and transmission | Seiji Higurashi | 2004-12-21 |
| 6823007 | Method for protection of data reproduction according to both medium protection data and apparatus protection data, including limitation of reproduction based on a film classification system | — | 2004-11-23 |