Inventor · disambiguated record
Tomoyuki Kato
Also filed as: KATO TOMOYUKI
71 granted patents·21 pending applications·480 citations·filing 1992–2025
98Inventor score
Top patents by PatentIndex Score
92 records- 0198US10948802B2Wavelength converter apparatus and method of performing wavelength conversionFUJITSU LTD·Filed 2020·Granted Mar 16, 2021·10 cites·9 claims
- 0293USD867957SWheel cap for automobileHONDA MOTOR CO LTD·Filed 2018·Granted Nov 26, 2019·40 cites·1 claims
- 0391USD838652SWheel for an automobileHONDA MOTOR CO LTD·Filed 2017·Granted Jan 22, 2019·36 cites·1 claims
- 0491USD838651SWheel for an automobileHONDA MOTOR CO LTD·Filed 2017·Granted Jan 22, 2019·36 cites·1 claims
- 0589US12179701B2Vehicle slope apparatusAISIN CORP·Filed 2022·Granted Dec 31, 2024·2 cites·11 claims
- 0687US11163119B2Wavelength conversion device and method of performing wavelength conversionFUJITSU LTD·Filed 2020·Granted Nov 2, 2021·2 cites·12 claims
- 0787US9857662B2Optical frequency shift device and methodFUJITSU LTD·Filed 2017·Granted Jan 2, 2018·6 cites·5 claims
- 0886US11411426B2Charging control for improving efficiency of charging auxiliary device batteryTOYOTA MOTOR CO LTD·Filed 2019·Granted Aug 9, 2022·4 cites·8 claims
- 0986US9106359B2Optical network system, optical multiplexing apparatus, and receiving apparatusKATO TOMOYUKI·Filed 2011·Granted Aug 11, 2015·9 cites·8 claims
- 1084US11460752B2Wavelength conversion device and wavelength conversion methodFUJITSU LTD·Filed 2021·Granted Oct 4, 2022·1 cites·16 claims
- 1184US8918613B2Storage apparatus and data management method for storage area allocation based on access frequencyKATO TOMOYUKI·Filed 2011·Granted Dec 23, 2014·9 cites·13 claims
- 1284US6282340B1Light wavelength tuning device and light source optical demultiplexer and wavelength division multiplexed optical communication system using the tuning deviceFURUKAWA ELECTRIC CO LTD·Filed 1999·Granted Aug 28, 2001·71 cites·12 claims
- 1382US10429721B2Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation methodFUJITSU LTD·Filed 2019·Granted Oct 1, 2019·1 cites·7 claims
- 1482US10281798B2Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation methodFUJITSU LTD·Filed 2018·Granted May 7, 2019·1 cites·6 claims
- 1580US6068746AOxygen sensor having a solid electrolyte applicable to an internal combustion engineDENSO CORP·Filed 1997·Granted May 30, 2000·51 cites·20 claims
- 1679US8773753B2Optical amplifier and optical amplifying apparatusKATO TOMOYUKI·Filed 2011·Granted Jul 8, 2014·4 cites·14 claims
- 1778US7664926B2Storage apparatus and storage area allocation methodHITACHI LTD·Filed 2009·Granted Feb 16, 2010·5 cites·8 claims
- 1877US11668870B2Optical communication device, optical transmission system, wavelength converter, and optical communication methodFUJITSU LTD·Filed 2020·Granted Jun 6, 2023·1 cites·5 claims
- 1977US5701559ACleanerless image forming apparatus using an electrophotographic processTOKYO ELECTRIC CO LTD·Filed 1996·Granted Dec 23, 1997·32 cites·23 claims
- 2076US11613196B2Ramp system for vehicleTOYOTA MOTOR CO LTD·Filed 2021·Granted Mar 28, 2023·1 cites·18 claims
- 2174US10193621B2Location measurement apparatus, light modulation converter, and light variation location measurement methodFUJITSU LTD·Filed 2018·Granted Jan 29, 2019·2 cites·19 claims
- 2272US9746699B2Optical frequency shifter, single sideband modulator, and light insertion and branch apparatusFUJITSU LTD·Filed 2016·Granted Aug 29, 2017·2 cites·14 claims
- 2371US11721999B2Charging control for improving efficiency of charging auxiliary device batteryTOYOTA MOTOR CO LTD·Filed 2022·Granted Aug 8, 2023·0 cites·16 claims
- 2470US9983619B2Image display apparatusFUJITSU TEN LTD·Filed 2015·Granted May 29, 2018·2 cites·7 claims
- 2568US11588572B2Wavelength converter and optical transmission device that includes wavelength converterFUJITSU LTD·Filed 2021·Granted Feb 21, 2023·0 cites·7 claims
- 2667US11709450B1Image forming deviceTOSHIBA TEC KK·Filed 2022·Granted Jul 25, 2023·0 cites·20 claims
- 2767US7543129B2Storage system and storage area allocation method configuring pool areas each including logical volumes having identical allocation unit sizeHITACHI LTD·Filed 2006·Granted Jun 2, 2009·2 cites·20 claims
- 2866US10613455B1Automatic cleaning image forming apparatus and method of controlling image forming apparatusTOSHIBA TEC KK·Filed 2019·Granted Apr 7, 2020·0 cites·18 claims
- 2966US7555600B2Storage apparatus and configuration setting methodHITACHI LTD·Filed 2006·Granted Jun 30, 2009·3 cites·14 claims
- 3063US10884359B2Automatic cleaning image forming apparatus and method of controlling image forming apparatusTOSHIBA TEC KK·Filed 2020·Granted Jan 5, 2021·0 cites·20 claims
- 3163US9929828B2Optical add/drop multiplexer and method for adding/dropping optical signalFUJITSU LTD·Filed 2016·Granted Mar 27, 2018·1 cites·12 claims
- 3263US9634787B2Optical add-drop multiplexerFUJITSU LTD·Filed 2016·Granted Apr 25, 2017·1 cites·9 claims
- 3363US5381794AUltrasonic probe apparatusALOKA CO LTD·Filed 1993·Granted Jan 17, 1995·117 cites·25 claims
- 3463US2025321463A1Wavelength converting device and wavelength converting methodFUJITSU LTD·Filed 2025·Application pending·0 cites
- 3562US10824086B1Image forming apparatus including a cleaning member that has a spiral portion of different edge surface widths among different regionsTOSHIBA TEC KK·Filed 2019·Granted Nov 3, 2020·0 cites·18 claims
- 3662US9148228B2Optical signal transmitting device, optical signal transmitting method, frequency fluctuation suppressing device and frequency fluctuation suppressing systemFUJITSU LTD·Filed 2012·Granted Sep 29, 2015·1 cites·8 claims
- 3761US12252052B2Vehicle slope apparatusAISIN CORP·Filed 2022·Granted Mar 18, 2025·0 cites·8 claims
- 3861US11691556B2Vehicle ramp systemTOYOTA MOTOR CO LTD·Filed 2020·Granted Jul 4, 2023·0 cites·6 claims
- 3959USD867214SAutomobile, toy replica and/or other replicasHONDA MOTOR CO LTD·Filed 2018·Granted Nov 19, 2019·7 cites·1 claims
- 4058US11799579B2Wavelength conversion device, transmission device, and transmission systemFUJITSU LTD·Filed 2021·Granted Oct 24, 2023·0 cites·11 claims
- 4158US7047367B2Information processing device and setting method for sameHITACHI LTD·Filed 2003·Granted May 16, 2006·9 cites·16 claims
- 4256US11533548B2Transmission device, transmission method, and transmission systemFUJITSU LTD·Filed 2021·Granted Dec 20, 2022·0 cites·12 claims
- 4355US11190292B2Wavelength converter and optical transmission device that includes wavelength converterFUJITSU LTD·Filed 2018·Granted Nov 30, 2021·0 cites·5 claims
- 4455US8762679B2Systems and methods of allocating storage regions to virtual regionsHITACHI LTD·Filed 2012·Granted Jun 24, 2014·0 cites·15 claims
- 4555US2024106560A1Wavelength conversion device and optical transmission systemFUJITSU LTD·Filed 2023·Application pending·0 cites
- 4655US2024103338A1Wavelength converter and optical transmission systemFUJITSU LTD·Filed 2023·Application pending·0 cites
- 4753US8312246B2Storage apparatus and storage area allocation methodKATO TOMOYUKI·Filed 2011·Granted Nov 13, 2012·0 cites·12 claims
- 4853US8305768B2Secondary battery protecting module and lead mounting methodTAKEDA ITARU·Filed 2008·Granted Nov 6, 2012·0 cites·3 claims
- 4952US11890981B2Vehicle step deviceAISIN CORP·Filed 2021·Granted Feb 6, 2024·0 cites·6 claims
- 5052US11789204B2Wavelength converter, optical transmission system and wavelength conversion methodFUJITSU LTD·Filed 2021·Granted Oct 17, 2023·0 cites·10 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →