Inventor · disambiguated record
Taku Hoshizawa
Also filed as: HOSHIZAWA TAKU
37 granted patents·19 pending applications·81 citations·filing 1998–2021
96Inventor score
Files withHITACHI LTD39HOSHIZAWA TAKU5HITACHI CONSUMER ELECTRONICS4HITACHI-LG DATA STORAGE INC2HITACHI MEDIA ELECTRON KK1
Top patents by PatentIndex Score
56 records- 0193US9330704B2Optical information recording device, optical information recording and reproducing device, optical information recording method, optical information recording and reproducing method, and optical elementHITACHI CONSUMER ELECTRONICS·Filed 2012·Granted May 3, 2016·13 cites·3 claims
- 0292US7421626B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2007·Granted Sep 2, 2008·7 cites·2 claims
- 0380US7593299B2Optical disk recording/reproducing apparatus and optical disk recording/reproducing methodHITACHI LTD·Filed 2005·Granted Sep 22, 2009·4 cites·12 claims
- 0480US7305606B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2004·Granted Dec 4, 2007·13 cites·9 claims
- 0577US7979753B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2008·Granted Jul 12, 2011·1 cites·2 claims
- 0677US7719939B2Optical disk drive and method for allocating spare area on optical disk mediumHITACHI LTD·Filed 2005·Granted May 18, 2010·3 cites·14 claims
- 0772US7571361B2Recording method and optical disk recording deviceHITACHI LTD·Filed 2007·Granted Aug 4, 2009·2 cites·8 claims
- 0868US8356235B2Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording mediumHITACHI LTD·Filed 2009·Granted Jan 15, 2013·0 cites·2 claims
- 0968US7984340B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2008·Granted Jul 19, 2011·0 cites·2 claims
- 1067US7657817B2Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording mediumHITACHI LTD·Filed 2008·Granted Feb 2, 2010·0 cites·6 claims
- 1167US7647542B2Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording mediumHITACHI LTD·Filed 2008·Granted Jan 12, 2010·0 cites·6 claims
- 1267US7594155B2Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording mediumHITACHI LTD·Filed 2008·Granted Sep 22, 2009·0 cites·6 claims
- 1367US7590915B2Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording mediumHITACHI LTD·Filed 2008·Granted Sep 15, 2009·0 cites·6 claims
- 1466US7421627B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2007·Granted Sep 2, 2008·0 cites·2 claims
- 1565US11544030B2Remote work-support systemHITACHI LTD·Filed 2021·Granted Jan 3, 2023·0 cites·10 claims
- 1665US7620874B2Recording method for recording data on a recording mediumHITACHI LTD·Filed 2007·Granted Nov 17, 2009·0 cites·6 claims
- 1762US11169764B2Remote work-support systemHITACHI LTD·Filed 2020·Granted Nov 9, 2021·0 cites·8 claims
- 1862US8976639B2Disk-shaped recording medium and recording/reproducing device for disk-shaped recording mediumHOSHIZAWA TAKU·Filed 2011·Granted Mar 10, 2015·1 cites·9 claims
- 1962US6918079B2Recording method, reproducing method, recording apparatus, and reproducing apparatusHITACHI LTD·Filed 2002·Granted Jul 12, 2005·2 cites·20 claims
- 2061US7216286B2Data reproducing method and data reproducing apparatusHITACHI LTD·Filed 2003·Granted May 8, 2007·4 cites·10 claims
- 2159US7281194B2Recording method for recording data on a recording mediumHITACHI LTD·Filed 2005·Granted Oct 9, 2007·0 cites·5 claims
- 2255US2006248427A1Optical disk device and data randomizing method for optical disk driveKATAYAMA YUKARI·Filed 2006·Application pending·0 cites
- 2353US5920579ADigital signal reproduction apparatusHITACHI LTD·Filed 1998·Granted Jul 6, 1999·16 cites·9 claims
- 2452US7782729B2Digital data recording method and data recording/reproducing apparatusHITACHI LTD·Filed 2006·Granted Aug 24, 2010·0 cites·16 claims
- 2551US9761263B2Optical information recording and reproducing device, optical information recording and reproducing methodHITACHI CONSUMER ELECTRONICS·Filed 2012·Granted Sep 12, 2017·0 cites·16 claims
- 2651US7310290B2Tracking learning/adjusting method and optical disk deviceHITACHI LTD·Filed 2004·Granted Dec 18, 2007·1 cites·26 claims
- 2750US7747906B2Recording and reproducing apparatus and digital data recording methodHITACHI LTD·Filed 2007·Granted Jun 29, 2010·0 cites·12 claims
- 2850US6014766ADigital signal reproduction apparatusHITACHI LTD·Filed 1999·Granted Jan 11, 2000·14 cites·3 claims
- 2949US8913474B2Optical information recording/reproducing apparatusHITACHI LG DATA STORAGE INC·Filed 2014·Granted Dec 16, 2014·0 cites·16 claims
- 3047US9013972B2Optical information recording and reproducing method and deviceHITACHI CONSUMER ELECTRONICS·Filed 2013·Granted Apr 21, 2015·0 cites·4 claims
- 3147US8804474B2Optical information recording/reproducing apparatusHITACHI MEDIA ELECTRON KK·Filed 2013·Granted Aug 12, 2014·0 cites·14 claims
- 3247US8407533B2Method of recording/reproducing digital data and apparatus for sameHOSHIZAWA TAKU·Filed 2011·Granted Mar 26, 2013·0 cites·2 claims
- 3347US2006280108A1Optical discHITACHI LTD·Filed 2006·Application pending·0 cites
- 3446US7984339B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2008·Granted Jul 19, 2011·0 cites·2 claims
- 3546US7747910B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2008·Granted Jun 29, 2010·0 cites·2 claims
- 3646US7441163B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2007·Granted Oct 21, 2008·0 cites·2 claims
- 3746US7406636B2Method of recording/reproducing digital data and apparatus for sameHITACHI LTD·Filed 2007·Granted Jul 29, 2008·0 cites·2 claims
- 3844US2004267777A1File management method, recording apparatus, reproducing apparatus, and recording mediumFiled 2003·Application pending·0 cites
- 3944US2005021493A1Recording medium and file management systemHITACHI LTD·Filed 2003·Application pending·0 cites
- 4044US2005152235A1Data recording method and apparatusHITACHI LTD·Filed 2005·Application pending·0 cites
- 4144US2004268043A1Recording medium, recording apparatus and reproducing apparatusHITACHI LTD·Filed 2003·Application pending·0 cites
- 4244US2007189135A1Optical disc apparatus and disc management information acquisition methodHITACHI LG DATA STORAGE INC·Filed 2006·Application pending·0 cites
- 4344US2016111123A1Optical information recording/reproduction device and adjustment methodHITACHI CONSUMER ELECTRONICS·Filed 2013·Application pending·0 cites
- 4444US2006126470A1Digital data recording method, recording apparatus and reproducing apparatusHOSHIZAWA TAKU·Filed 2005·Application pending·0 cites
- 4543US8174942B2Data recording method capable of replacing defective data on different location in spare areasHOSHIZAWA TAKU·Filed 2004·Granted May 8, 2012·0 cites·24 claims
- 4643US2006221480A1Digital data recording method and digital data recording apparatusHOSHIZAWA TAKU·Filed 2005·Application pending·0 cites
- 4743US2003135798A1Optical disk device and data randomizing method for optical disk deviceFiled 2002·Application pending·0 cites
- 4843US2003233381A1File management methodHITACHI LTD·Filed 2002·Application pending·0 cites
- 4942US8300511B2Optical information record/reproduction apparatus and reproduction apparatusSHIMADA KENICHI·Filed 2011·Granted Oct 30, 2012·0 cites·7 claims
- 5042US2005007912A1Recording medium, recording method and recording apparatusHITACHI LTD·Filed 2004·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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