Inventor · disambiguated record
Tamotsu Ito
Also filed as: ITO TAMOTSU
55 granted patents·19 pending applications·1,554 citations·filing 1974–2025
99Inventor score
Top patents by PatentIndex Score
74 records- 0198US5608717AInformation recording media and optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracksHITACHI LTD·Filed 1994·Granted Mar 4, 1997·196 cites·22 claims
- 0297US8150079B2Personal digital assistant and stereo reproduction methodMAEDA KAZUHIRO·Filed 2005·Granted Apr 3, 2012·151 cites·17 claims
- 0396US7224886B2Method of using AV devices and AV device systemHITACHI LTD·Filed 2001·Granted May 29, 2007·76 cites·21 claims
- 0496US6594442B1Optical disk recording still image data, a method and apparatus for recording and playing back still image data to and from the optical diskHITACHI LTD·Filed 1999·Granted Jul 15, 2003·129 cites·14 claims
- 0595US6243340B1Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessedHITACHI LTD·Filed 1998·Granted Jun 5, 2001·68 cites·1 claims
- 0694US5875156APlayback system for an optical disc representing a character or a graphic pattern formed by specified pit patternsHITACHI LTD·Filed 1998·Granted Feb 23, 1999·84 cites·15 claims
- 0793US6463022B1Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the sameHITACHI LTD·Filed 2000·Granted Oct 8, 2002·28 cites·2 claims
- 0893US5751671AInformation recording media and optical disk, disk having specific data so that a visible pattern of characters or graphics appear on a copy diskHITACHI LTD·Filed 1995·Granted May 12, 1998·92 cites·43 claims
- 0992US11803240B2Video display apparatus and methodMAXELL LTD·Filed 2022·Granted Oct 31, 2023·1 cites·10 claims
- 1092US6393201B1Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information meda and method thereofHITACHI LTD·Filed 1998·Granted May 21, 2002·72 cites·20 claims
- 1190US6631107B1Method and apparatus for information recording mediumHITACHI LTD·Filed 2000·Granted Oct 7, 2003·43 cites·19 claims
- 1289US9032438B2Method and apparatus for accessing contentITO TAMOTSU·Filed 2004·Granted May 12, 2015·34 cites·3 claims
- 1388US6633724B1Realtime data recording methodHITACHI LTD·Filed 1999·Granted Oct 14, 2003·95 cites·4 claims
- 1488US6493504B1Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage mediumHITACHI LTD·Filed 1999·Granted Dec 10, 2002·71 cites·8 claims
- 1587US5499221ACD-ROM retrieval apparatusHITACHI LTD·Filed 1993·Granted Mar 12, 1996·51 cites·2 claims
- 1686US6701063B1Video disc recording and reproducing apparatus, and method using the sameHITACHI LTD·Filed 1999·Granted Mar 2, 2004·42 cites·20 claims
- 1786US6445654B1Recording/reproducing method and device with supplementary data storage and outputHITACHI LTD·Filed 2000·Granted Sep 3, 2002·25 cites·12 claims
- 1885US6483983B1Information reproducing method, information reproducing apparatus and information recording/reproducing apparatusHITACHI LTD·Filed 1999·Granted Nov 19, 2002·43 cites·19 claims
- 1985US2025013301A1Video display apparatus and methodMAXELL LTD·Filed 2024·Application pending·0 cites
- 2083US12130963B2Video display apparatus and methodMAXELL LTD·Filed 2023·Granted Oct 29, 2024·0 cites·7 claims
- 2183US2024420401A1Video display device and display control method for sameMAXELL LTD·Filed 2024·Application pending·0 cites
- 2281US7509091B2Broadcast reception system, mobile terminal and serverHITACHI LTD·Filed 2005·Granted Mar 24, 2009·6 cites·12 claims
- 2381US3955266AVacuum sealed molding process for producing molds having a deep concave portion or a convex portionSINTOKOGIO LTD·Filed 1974·Granted May 11, 1976·45 cites·1 claims
- 2479US6788346B2Camera information recording apparatus for recording image data in an optical disk wherein managing information is stored when the residual storage of a battery decreasesHITACHI LTD·Filed 2001·Granted Sep 7, 2004·8 cites·6 claims
- 2579US2025285557A1Road guidance system and mobile information terminal used in sameMAXELL LTD·Filed 2025·Application pending·0 cites
- 2678US11487359B2Video display apparatus and methodMAXELL LTD·Filed 2018·Granted Nov 1, 2022·1 cites·16 claims
- 2775US6832040B2Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information media and method thereofHITACHI LTD·Filed 2002·Granted Dec 14, 2004·9 cites·21 claims
- 2874US2025259342A1Video display device and video display methodMAXELL LTD·Filed 2025·Application pending·0 cites
- 2973US7031597B2Method for recording still picture group management informationHITACHI LTD·Filed 2002·Granted Apr 18, 2006·7 cites·5 claims
- 3072US2025193842A1Portable information terminal, information processing system, and method for identifying area where portable information terminal is presentMAXELL LTD·Filed 2025·Application pending·0 cites
- 3171US12347334B2Road guidance system and mobile information terminal used in sameMAXELL LTD·Filed 2019·Granted Jul 1, 2025·0 cites·9 claims
- 3271US5737306APlayback system for an optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracksHITACHI LTD·Filed 1996·Granted Apr 7, 1998·19 cites·9 claims
- 3368US12504937B2Information display apparatus and methodMAXELL LTD·Filed 2021·Granted Dec 23, 2025·0 cites·15 claims
- 3465US6816444B1Method and apparatus for digital information processingHITACHI LTD·Filed 2000·Granted Nov 9, 2004·6 cites·13 claims
- 3564US6496978B1Microcomputer control system in which programs can be modified from outside of the system and newer versions of the modified programs are determined and executedHITACHI LTD·Filed 1997·Granted Dec 17, 2002·38 cites·5 claims
- 3662US7174537B2Microcomputer control system in which programs can be modified and newer versions of the modified programs being detected and executedHITACHI LTD·Filed 2002·Granted Feb 6, 2007·7 cites·7 claims
- 3761US7133599B2Realtime data recording methodHITACHI LTD·Filed 2003·Granted Nov 7, 2006·3 cites·7 claims
- 3860US12267804B2Portable information terminal, information processing system, and method for identifying area where portable information terminal is presentMAXELL LTD·Filed 2019·Granted Apr 1, 2025·0 cites·11 claims
- 3960US7302166B2Computer readable storage medium for storing still picture and still picture management informationHITACHI LTD·Filed 2002·Granted Nov 27, 2007·2 cites·1 claims
- 4060US7260313B2Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage mediumHITACHI LTD·Filed 2002·Granted Aug 21, 2007·2 cites·1 claims
- 4160US6347068B2Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the sameHITACHI LTD·Filed 2001·Granted Feb 12, 2002·2 cites·2 claims
- 4258US12299771B2Video display device and video display methodMAXELL LTD·Filed 2019·Granted May 13, 2025·0 cites·11 claims
- 4357US12380698B2Information processing terminal and remote control methodMAXELL LTD·Filed 2020·Granted Aug 5, 2025·0 cites·12 claims
- 4457US4146756AMoving voice coil transducer with diaphragm having concentric sections of opposite curvatureHITACHI LTD·Filed 1978·Granted Mar 27, 1979·27 cites·3 claims
- 4556US8326129B2Method of using AV devices and AV device systemAKAMATSU CHIYO·Filed 2008·Granted Dec 4, 2012·0 cites·9 claims
- 4656US7196986B2Digital information processing methodHITACHI LTD·Filed 2004·Granted Mar 27, 2007·3 cites·4 claims
- 4755US7333717B2Method of using AV devices and AV device systemHITACHI LTD·Filed 2003·Granted Feb 19, 2008·2 cites·19 claims
- 4855US6697563B1Information recording medium, motion-picture voice recording/reproducing apparatus, and motion-picture voice recording/reproducing methodHITACHI LTD·Filed 1999·Granted Feb 24, 2004·11 cites·10 claims
- 4955US2022222881A1Video display device and display control method for sameMAXELL LTD·Filed 2019·Application pending·0 cites
- 5055US2025358357A1Portable information terminal, wireless connectable external device, and information processing method for themMAXELL LTD·Filed 2022·Application pending·0 cites
Showing the top 50 of 74 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →