Inventor · disambiguated record
Tsukasa Hasegawa
Also filed as: HASEGAWA TSUKASA
29 granted patents·10 pending applications·871 citations·filing 1992–2025
97Inventor score
Top patents by PatentIndex Score
39 records- 0196US7224886B2Method of using AV devices and AV device systemHITACHI LTD·Filed 2001·Granted May 29, 2007·76 cites·21 claims
- 0295US6243340B1Information 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
- 0393US6463022B1Information 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
- 0489US7003606B2Electronic device, method for using electronic device, and electronic device system for reserving bus usage time on a bus to conduct communications between electronic devicesHITACHI LTD·Filed 2004·Granted Feb 21, 2006·43 cites·10 claims
- 0588US6633724B1Realtime data recording methodHITACHI LTD·Filed 1999·Granted Oct 14, 2003·95 cites·4 claims
- 0685US6691150B1Information device, information device system control method, and information device systemHITACHI LTD·Filed 2000·Granted Feb 10, 2004·25 cites·12 claims
- 0785US6392968B1Method for reproducing data including judging whether seamless reproduction of the data is possibleHITACHI LTD·Filed 1999·Granted May 21, 2002·44 cites·4 claims
- 0882US2025320211A1Compound, composition, and electrophotographic photoreceptorMITSUBISHI CHEM CORP·Filed 2025·Application pending·0 cites
- 0979US6788346B2Camera 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
- 1076US5684970AIcon menu display apparatus and icon menu display methodHITACHI LTD·Filed 1996·Granted Nov 4, 1997·76 cites·23 claims
- 1175US6584272B1Data recording apparatusHITACHI LTD·Filed 1999·Granted Jun 24, 2003·51 cites·9 claims
- 1274US5592605AMenu picture display method and apparatus for a data processorHITACHI LTD·Filed 1994·Granted Jan 7, 1997·61 cites·28 claims
- 1366US6131111AInformation device information device system control method, and information device systemHITACHI LTD·Filed 1997·Granted Oct 10, 2000·29 cites·4 claims
- 1465US2025048826A1Material for emission layer of organic electroluminescent element, composition for forming emission layer, organic electroluminescent element, and method for producing organic electroluminescent elementMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 1564US5432899AMethod for managing resources and information processing systemHITACHI LTD·Filed 1992·Granted Jul 11, 1995·33 cites·24 claims
- 1662US5864808AErroneous input processing method and apparatus in information processing system using composite inputHITACHI LTD·Filed 1997·Granted Jan 26, 1999·48 cites·22 claims
- 1761US7133599B2Realtime data recording methodHITACHI LTD·Filed 2003·Granted Nov 7, 2006·3 cites·7 claims
- 1861US2025127046A1Composition, organic electroluminescent element and method for producing same, display device, and lighting deviceMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 1960US6347068B2Information 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
- 2059US9763834B2Ultrasonic oscillation-induced sericin extraction method and process for coating sericin in a gloveBEST-KOBO CO LTD·Filed 2014·Granted Sep 19, 2017·0 cites·14 claims
- 2159US6728765B2Information device, information device system control method, and information device systemHITACHI LTD·Filed 2001·Granted Apr 27, 2004·3 cites·7 claims
- 2256US8326129B2Method of using AV devices and AV device systemAKAMATSU CHIYO·Filed 2008·Granted Dec 4, 2012·0 cites·9 claims
- 2356US2025036036A1Electrophotographic photoconductor, electrophotographic photoconductor cartridge, image formation device, and compoundMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 2456US2025036035A1Electrophotographic photoconductor, electrophotographic photoconductor cartridge, and image formation deviceMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 2555US7333717B2Method of using AV devices and AV device systemHITACHI LTD·Filed 2003·Granted Feb 19, 2008·2 cites·19 claims
- 2655US6697563B1Information 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
- 2755US2024345498A1Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, image formation device, coating liquid for forming electrophotographic photoreceptor protective layer, and compoundMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 2855US2024353769A1Electrophotographic photoreceptor, coating liquid for forming electrophotographic photoreceptor protective layer, compound, electrophotographic photoreceptor cartridge, and image formation deviceMITSUBISHI CHEM CORP·Filed 2024·Application pending·0 cites
- 2954US9240897B2Method of using AV devices and AV device systemHITACHI MAXELL·Filed 2012·Granted Jan 19, 2016·0 cites·4 claims
- 3054US5781731ASchedule management support systemHITACHI LTD·Filed 1996·Granted Jul 14, 1998·90 cites·29 claims
- 3151US7136910B2Information device, information device system control method, and information device systemHITACHI LTD·Filed 2004·Granted Nov 14, 2006·1 cites·3 claims
- 3250US6757765B1Electronic device, method for using electronic device, and electronic device system for reserving bus usage time on a bus to conduct communications between electronic devicesHITACHI LTD·Filed 1997·Granted Jun 29, 2004·24 cites·13 claims
- 3349US6487589B1Information device, information device system control method, and information device systemHITACHI LTD·Filed 1999·Granted Nov 26, 2002·21 cites·14 claims
- 3448US2004120692A1Camera 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 2003·Application pending·0 cites
- 3547US7577417B2Mobile terminalHITACHI LTD·Filed 2006·Granted Aug 18, 2009·0 cites·7 claims
- 3646US5687221AInformation processing apparatus having speech and non-speech communication functionsHITACHI LTD·Filed 1994·Granted Nov 11, 1997·17 cites·14 claims
- 3746US2002191516A1Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the sameHITACHI LTD·Filed 2002·Application pending·0 cites
- 3842US2004204022A1Mobile terminalFiled 2003·Application pending·0 cites
- 3940US6856254B1Electronic device, electronic device system control method and electronic device systemHITACHI LTD·Filed 1999·Granted Feb 15, 2005·12 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →