Inventor · disambiguated record
Toru Nakao
Also filed as: NAKAO TORU
52 granted patents·12 pending applications·381 citations·filing 1980–2025
98Inventor score
Top patents by PatentIndex Score
64 records- 0195US7515374B2Magnetic tape and manufacturing method thereof, and servo writerFUJIFILM CORP·Filed 2006·Granted Apr 7, 2009·36 cites·10 claims
- 0294US7623310B2Magnetic recording medium, servo signal write head unit, and servo writerFUJIFILM CORP·Filed 2005·Granted Nov 24, 2009·22 cites·22 claims
- 0394US7142388B2Servo writer and servo writing processFUJI PHOTO FILM CO LTD·Filed 2004·Granted Nov 28, 2006·53 cites·20 claims
- 0492US6865050B2Servo signal recording device and servo signal verifying device using edge detectionFUJI PHOTO FILM CO LTD·Filed 2002·Granted Mar 8, 2005·43 cites·41 claims
- 0592US4258185APyridazinone compoundsYOSHITOMI PHARMACEUTICAL·Filed 1980·Granted Mar 24, 1981·39 cites·15 claims
- 0689US11908498B2Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2022·Granted Feb 20, 2024·2 cites·19 claims
- 0789US11894027B2Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2022·Granted Feb 6, 2024·2 cites·19 claims
- 0889US7602578B2Servo writer and servo writing processFUJIFILM CORP·Filed 2006·Granted Oct 13, 2009·9 cites·27 claims
- 0988US7486479B2Magnetic head assembly with at least one guide block set back from sliding surface of servo signal recording headFUJIFILM CORP·Filed 2004·Granted Feb 3, 2009·26 cites·24 claims
- 1087US7012774B2Magnetic tape and servo writerFUJI PHOTO FILM CO LTD·Filed 2004·Granted Mar 14, 2006·21 cites·20 claims
- 1186US12073853B2Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape driveFUJIFILM CORP·Filed 2023·Granted Aug 27, 2024·1 cites·20 claims
- 1286US7187511B2Magnetic tape and manufacturing method thereof, and servo writerFUJI PHOTO FILM CO LTD·Filed 2004·Granted Mar 6, 2007·17 cites·20 claims
- 1386US7142389B2Tape driveFUJI PHOTO FILM CO LTD·Filed 2005·Granted Nov 28, 2006·7 cites·23 claims
- 1485US12374361B2Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method of magnetic tape, detection method, and inspection methodFUJIFILM CORP·Filed 2024·Granted Jul 29, 2025·1 cites·35 claims
- 1584US7133245B2Servo write head assembly and servo writerFUJI PHOTO FILM CO LTD·Filed 2005·Granted Nov 7, 2006·5 cites·17 claims
- 1682US7355805B2Magnetic tape and method of manufacturing magnetic tape, servo writer, and method of and apparatus for specifying servo bandFUJIFILM CORP·Filed 2004·Granted Apr 8, 2008·15 cites·31 claims
- 1781US11705159B2Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape driveFUJIFILM CORP·Filed 2022·Granted Jul 18, 2023·1 cites·18 claims
- 1881US5045541AFused pyridazine compounds and their pharmaceutical useYOSHITOMI PHARMACEUTICAL·Filed 1988·Granted Sep 3, 1991·18 cites·4 claims
- 1976US7379258B2Inspection method of head unit moving device and manufacture method of inspection use tape thereforFUJIFILM CORP·Filed 2003·Granted May 27, 2008·11 cites·27 claims
- 2074US11276427B2Magnetic tape recording and reproducing apparatus and recording and reproducing methodFUJIFILM CORP·Filed 2020·Granted Mar 15, 2022·1 cites·9 claims
- 2173US12243564B2Detection device, inspection device, magnetic tape drive, magnetic tape system, detection method, inspection method, and programFUJIFILM CORP·Filed 2024·Granted Mar 4, 2025·0 cites·10 claims
- 2273US11120832B2Recording and reproducing device, recording and reproducing method, and magnetic tape cartridgeFUJIFILM CORP·Filed 2020·Granted Sep 14, 2021·1 cites·7 claims
- 2373US7428117B2Servo signal inspecting device and method for inspecting servo signalFUJIFILM CORP·Filed 2005·Granted Sep 23, 2008·2 cites·11 claims
- 2471US12308053B2Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing methodFUJIFILM CORP·Filed 2024·Granted May 20, 2025·0 cites·4 claims
- 2570US12394434B2Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading methodFUJIFILM CORP·Filed 2024·Granted Aug 19, 2025·0 cites·6 claims
- 2670US4849421AAnti-anxiety benzothiepino(5,4-c]pyridazinesYOSHITOMI PHARMACEUTICAL·Filed 1988·Granted Jul 18, 1989·9 cites·3 claims
- 2769US12136438B2Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape driveFUJIFILM CORP·Filed 2023·Granted Nov 5, 2024·0 cites·9 claims
- 2869US6906887B2Record/reproduce equipment of a magnetic tape, a servo control method thereof, a servowriter thereof, and a magnetic tape used in record/reproduce equipmentFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jun 14, 2005·7 cites·30 claims
- 2969US2025378849A1Magnetic tape, magnetic tape cartridge, magnetic tape system, test method, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 3068US12176014B2Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2023·Granted Dec 24, 2024·0 cites·17 claims
- 3168US11900969B2Detection device, inspection device, magnetic tape drive, magnetic tape system, detection method, inspection method, and programFUJIFILM CORP·Filed 2022·Granted Feb 13, 2024·0 cites·17 claims
- 3267US12367897B2Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2023·Granted Jul 22, 2025·0 cites·6 claims
- 3367US12073859B2Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and programFUJIFILM CORP·Filed 2022·Granted Aug 27, 2024·0 cites·24 claims
- 3467US2025349316A1Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape systemFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 3565US12026572B2Noncontact communication medium for recording medium cartridge, recording medium cartridge, and method for manufacturing noncontact communication medium for recording medium cartridgeFUJIFILM CORP·Filed 2022·Granted Jul 2, 2024·0 cites·14 claims
- 3664US12068011B2Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading methodFUJIFILM CORP·Filed 2023·Granted Aug 20, 2024·0 cites·26 claims
- 3764US12057148B2Signal processing device, magnetic tape drive, magnetic tape, magnetic tape cartridge, program, signal processing method, and magnetic tape manufacturing methodFUJIFILM CORP·Filed 2023·Granted Aug 6, 2024·0 cites·22 claims
- 3863US7136254B2Servo write head assembly and servo writerFUJI PHOTO FILM CO LTD·Filed 2004·Granted Nov 14, 2006·4 cites·12 claims
- 3960US12027185B2Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and programFUJIFILM CORP·Filed 2022·Granted Jul 2, 2024·0 cites·21 claims
- 4060US7672076B2Servo writer and servo writing methodFUJIFILM CORP·Filed 2004·Granted Mar 2, 2010·4 cites·14 claims
- 4160US2025232791A1Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method of magnetic tape, detection method, and inspection methodFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 4260US2025259649A1Magnetic tape drive, magnetic tape cartridge, and information management methodFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 4358US11551718B2Recording and reproducing device, recording and reproducing method, and magnetic tape cartridgeFUJIFILM CORP·Filed 2021·Granted Jan 10, 2023·0 cites·12 claims
- 4458US4931443APiperazine compound and pharmaceutical use thereofYOSHITOMI PHARMACEUTICAL·Filed 1987·Granted Jun 5, 1990·8 cites·3 claims
- 4557US11900976B2Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and programFUJIFILM CORP·Filed 2022·Granted Feb 13, 2024·0 cites·30 claims
- 4657US2025140289A1Servo pattern recording head, servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, and manufacturing method of magnetic tapeFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 4755US4965264AThienocinnoline compounds and their pharmaceutical useYOSHITOMI PHARMACEUTICAL·Filed 1988·Granted Oct 23, 1990·4 cites·3 claims
- 4853US12223987B2Magnetic tape cartridge, magnetic tape drive, memory, magnetic tape, magnetic tape system, and operation method of magnetic tape driveFUJIFILM CORP·Filed 2022·Granted Feb 11, 2025·0 cites·15 claims
- 4953US11183206B2Magnetic tape cartridge, recording device, recording method, and data recording, and reproducing system using a recording medium including a predetermined area for recording defect informationFUJIFILM CORP·Filed 2020·Granted Nov 23, 2021·0 cites·11 claims
- 5052US4843075ABenzothiopyrano[4,3-c]pyridazine compounds, methods for preparing said compounds and uses of said compoundsYOSHITOMI PHARMACEUTICAL·Filed 1986·Granted Jun 27, 1989·6 cites·5 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →