Inventor · disambiguated record
Takayuki Sugahara
Also filed as: SUGAHARA TAKAYUKI
133 granted patents·28 pending applications·1,521 citations·filing 1983–2025
99Inventor score
Files withVICTOR COMPANY OF JAPAN103JVCKENWOOD CORP19SUGAHARA TAKAYUKI19KODA KAZUO6JVC KENWOOD CORP2
Top patents by PatentIndex Score
161 records- 0197US6683987B1Method and apparatus for altering the picture updating frequency of a compressed video data streamVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jan 27, 2004·108 cites·7 claims
- 0294US7289718B2After-recording apparatusVICTOR COMPANY OF JAPAN·Filed 2002·Granted Oct 30, 2007·34 cites·7 claims
- 0394US7257135B2Method and apparatus for generating information signal to be recordedVICTOR COMPANY OF JAPAN·Filed 2002·Granted Aug 14, 2007·36 cites·11 claims
- 0494US6834349B1Copyright protection system for data storage and transmissionVICTOR COMPANY OF JAPAN·Filed 2000·Granted Dec 21, 2004·65 cites·13 claims
- 0594US6735251B2Decoding apparatus for protection of data reproduction according to protection data and first and second apparatus protection data to determine whether main data are reproduced in their entirety, partially or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted May 11, 2004·20 cites·2 claims
- 0692US6975730B1Method and apparatus for contents informationVICTOR COMPANY OF JAPAN·Filed 2000·Granted Dec 13, 2005·89 cites·10 claims
- 0791US8045840B2Video-audio recording apparatus and method, and video-audio reproducing apparatus and methodVICTOR COMPANY OF JAPAN·Filed 2005·Granted Oct 25, 2011·46 cites·10 claims
- 0890US8220016B2Method for protection of data reproduction according to both medium protection data and apparatus protection dataSUGAHARA TAKAYUKI·Filed 2008·Granted Jul 10, 2012·3 cites·4 claims
- 0990US6823007B2Method for protection of data reproduction according to both medium protection data and apparatus protection data, including limitation of reproduction based on a film classification systemVICTOR COMPANY OF JAPAN·Filed 2001·Granted Nov 23, 2004·12 cites·3 claims
- 1089US6804297B2Method for protection of data reproduction according to medium protection data, position information and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Oct 12, 2004·10 cites·2 claims
- 1189US6804298B2Apparatus for protection of data reproduction according to medium protection data, position information and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Oct 12, 2004·10 cites·2 claims
- 1289US6763066B2Apparatus for protection of data decoding according to protection data and first and second apparatus protection data to determine whether main data are decoded in their entirety, partially, or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Jul 13, 2004·10 cites·2 claims
- 1389US6763065B2Reproduction protection method according to both medium and apparatus protection data and a medium thereforVICTOR COMPANY OF JAPAN·Filed 2001·Granted Jul 13, 2004·10 cites·5 claims
- 1489US6262771B1Method and apparatus for converting picture signal, and recording and reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jul 17, 2001·43 cites·13 claims
- 1589US6167157AMethod of reducing quantization noise generated during a decoding process of image data and device for decoding image dataVICTOR COMPANY OF JAPAN·Filed 1998·Granted Dec 26, 2000·109 cites·1 claims
- 1688US7239703B2Copyright protection system for data storage and transmissionVICTOR COMPANY OF JAPAN·Filed 2004·Granted Jul 3, 2007·29 cites·5 claims
- 1788US6760375B2Method for protection of data decoding according to protection data and first and second apparatus protection data to determine whether main data are decoded in their entirety, partially, or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Jul 6, 2004·10 cites·2 claims
- 1888US6212329B1Method of protection of data reproduction, and reproduction apparatus providing protection of data reproductionVICTOR COMPANY OF JAPAN·Filed 1997·Granted Apr 3, 2001·22 cites·6 claims
- 1988US5404174AScene change detector for detecting a scene change of a moving pictureVICTOR COMPANY OF JAPAN·Filed 1993·Granted Apr 4, 1995·86 cites·9 claims
- 2087US5949908AMethod of reducing quantization noise generated during a decoding process of image data and device for decoding image dataVICTOR COMPANY OF JAPAN·Filed 1995·Granted Sep 7, 1999·92 cites·4 claims
- 2185US6816549B2Method 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 thereforVICTOR COMPANY OF JAPAN·Filed 2001·Granted Nov 9, 2004·10 cites·4 claims
- 2285US6795500B2Method for protection of data decoding according to medium protection data position information and first and second apparatus protection data to determine whether main data at specified positions are decoded in their entirety, partially, or not at allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Sep 21, 2004·10 cites·2 claims
- 2384US7239794B2Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereofVICTOR COMPANY OF JAPAN·Filed 2005·Granted Jul 3, 2007·3 cites·1 claims
- 2484US6804296B2Method for protection of data reproduction according to medium protection data, position information, first and second apparatus protection data and a film classification system to determine whether main data at specified positions are reproduced in their entirety, partially, or not at all, and data medium thereforVICTOR COMPANY OF JAPAN·Filed 2001·Granted Oct 12, 2004·9 cites·3 claims
- 2582US6947663B1Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereofVICTOR COMPANY OF JAPAN·Filed 2000·Granted Sep 20, 2005·9 cites·9 claims
- 2682US6853320B2Modulation systemVICTOR COMPANY OF JAPAN·Filed 2001·Granted Feb 8, 2005·16 cites·44 claims
- 2782US6600783B1Apparatus and method of encoding moving picture signalVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jul 29, 2003·20 cites·19 claims
- 2880US7317864B2Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereofVICTOR COMPANY OF JAPAN·Filed 2005·Granted Jan 8, 2008·3 cites·1 claims
- 2980US7113612B2Apparatus for embedding and reproducing watermark into and from contents dataVICTOR COMPANY OF JAPAN·Filed 2002·Granted Sep 26, 2006·25 cites·3 claims
- 3079US7961904B2Apparatus for embedding and reproducing watermark into and from contents dataVICTOR COMPANY OF JAPAN·Filed 2006·Granted Jun 14, 2011·8 cites·6 claims
- 3179US6745166B1Contents information recording method, contents information processing unit, contents information deciphering method, contents information deciphering unit and media thereofVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jun 1, 2004·28 cites·21 claims
- 3278US6154494AVariable length coded data processing method and device for performing the same methodVICTOR COMPANY OF JAPAN·Filed 1998·Granted Nov 28, 2000·61 cites·20 claims
- 3378US5542008AMethod of and apparatus for compressing image representing signalsVICTOR COMPANY OF JAPAN·Filed 1994·Granted Jul 30, 1996·36 cites·6 claims
- 3477US7174030B2Method and apparatus for embedding and reproducing watermark into and from contents dataVICTOR COMPANY OF JAPAN·Filed 2001·Granted Feb 6, 2007·16 cites·8 claims
- 3576US9666109B2ProjectorJVC KENWOOD CORP·Filed 2014·Granted May 30, 2017·3 cites·3 claims
- 3676US6760292B1Disc recorder for recording coded data to be reproduced in real time and method of doing the sameVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jul 6, 2004·11 cites·8 claims
- 3775US6084636AVideo signal encoding method and apparatus employing an adaptive quantization techniqueVICTOR COMPANY OF JAPAN·Filed 1997·Granted Jul 4, 2000·52 cites·18 claims
- 3874US7155011B2Encryption method, decryption method, and recording and reproducing apparatusVICTOR COMPANY OF JAPAN·Filed 2002·Granted Dec 26, 2006·10 cites·8 claims
- 3974US7024561B2Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception methodVICTOR COMPANY OF JAPAN·Filed 2001·Granted Apr 4, 2006·12 cites·14 claims
- 4074US5283656AData compression apparatus for video signal and method of data compression for video signalVICTOR COMPANY OF JAPAN·Filed 1991·Granted Feb 1, 1994·35 cites·9 claims
- 4173US2025013686A1Memory aid device, memory aid method, and mediumJVCKENWOOD CORP·Filed 2024·Application pending·0 cites
- 4272US7254234B2Method and apparatus for encrypting and decrypting informationVICTOR COMPANY OF JAPAN·Filed 2002·Granted Aug 7, 2007·14 cites·2 claims
- 4370US8131131B2Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereofKODA KAZUO·Filed 2007·Granted Mar 6, 2012·1 cites·2 claims
- 4470US8073310B2Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereofKODA KAZUO·Filed 2007·Granted Dec 6, 2011·1 cites·1 claims
- 4570US6909784B1Recording apparatus and recording method of electronic watermarkVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jun 21, 2005·16 cites·6 claims
- 4670US6904090B2Method 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 allVICTOR COMPANY OF JAPAN·Filed 2001·Granted Jun 7, 2005·2 cites·5 claims
- 4770US6876700B2Method 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 thereforVICTOR COMPANY OF JAPAN·Filed 2001·Granted Apr 5, 2005·2 cites·4 claims
- 4869USRE42549EMethod for protecting of data, reproduction according to both transmitted protection data and apparatus protection dataVICTOR COMPANY OF JAPAN·Filed 2006·Granted Jul 12, 2011·0 cites·11 claims
- 4969US6683989B1Coding apparatus for recoding coded bit streamsVICTOR COMPANY OF JAPAN·Filed 2000·Granted Jan 27, 2004·9 cites·9 claims
- 5068USRE44099EMethod for protection of data reproduction according to both medium protection data and apparatus protection dataSUGAHARA TAKAYUKI·Filed 2008·Granted Mar 19, 2013·0 cites·8 claims
Showing the top 50 of 161 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →