Inventor · disambiguated record
Hirofumi Watanabe
Also filed as: WATANABE HIROFUMI
119 granted patents·26 pending applications·2,011 citations·filing 1989–2024
99Inventor score
Files withRICOH KK19MITSUI MINING & SMELTING CO18MITSUBISHI ELECTRIC CORP16HITACHI AUTOMOTIVE SYSTEMS LTD10SONY CORP10
Top patents by PatentIndex Score
145 records- 0197US7033072B2Temperature sensorRICOH KK·Filed 2005·Granted Apr 25, 2006·54 cites·12 claims
- 0296US6437550B2Voltage generating circuit and reference voltage source circuit employing field effect transistorsRICOH KK·Filed 2000·Granted Aug 20, 2002·124 cites·44 claims
- 0395US5618068ADoor lock apparatus with automatic door closing mechanismMITSUI MINING & SMELTING CO·Filed 1994·Granted Apr 8, 1997·106 cites·12 claims
- 0494US8687374B2Electronic controller for vehicleWATANABE HIROFUMI·Filed 2011·Granted Apr 1, 2014·23 cites·8 claims
- 0593US6406073B1Vehicle door latch device with double action mechanismMITSUI MINING & SMELTING CO·Filed 2000·Granted Jun 18, 2002·66 cites·4 claims
- 0691US7429073B2Door operating apparatus, electromagnetic clutch, and coupling mechanismMITSUI MINING & SMELTING CO·Filed 2005·Granted Sep 30, 2008·23 cites·8 claims
- 0791US7426146B2Reference voltage generating circuit and constant voltage circuitRICOH KK·Filed 2006·Granted Sep 16, 2008·23 cites·8 claims
- 0890US5833301APowered sliding device for vehicle sliding doorMITSUI MINING & SMELTING CO·Filed 1997·Granted Nov 10, 1998·61 cites·20 claims
- 0990US5067612AShrink film package having perforated folded stripHONSHU SANGYOU KABUSHIKI KAISH·Filed 1991·Granted Nov 26, 1991·96 cites·8 claims
- 1089US11498122B2Pure copper powder having Si coating and production method thereof, and additive manufactured object using said pure copper powderJX NIPPON MINING & METALS CORP·Filed 2019·Granted Nov 15, 2022·1 cites·18 claims
- 1189US7370905B2Door-opening/closing apparatusMITSUI MINING & SMELTING CO·Filed 2006·Granted May 13, 2008·18 cites·11 claims
- 1289US6343817B1Vehicle door latch device with double action mechanismMITSUI MINING & SMELTING CO·Filed 2000·Granted Feb 5, 2002·41 cites·5 claims
- 1389US5913563APowered sliding device for vehicle sliding doorMITSUI MINING & SMELTING CO·Filed 1997·Granted Jun 22, 1999·60 cites·17 claims
- 1488US6075404ASubstrate biasing circuit and semiconductor integrated circuit deviceRICOH KK·Filed 1998·Granted Jun 13, 2000·55 cites·11 claims
- 1587US7934429B2Stress-distribution detecting semiconductor package group and detection method of stress distribution in semiconductor package using the sameRICOH CO LTD·Filed 2010·Granted May 3, 2011·8 cites·2 claims
- 1687US5581172AApparatus for controlling output of vehicular AC generatorMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Dec 3, 1996·77 cites·16 claims
- 1786US12089002B2Bioacoustic sensor and stethoscope including the sameMURATA MANUFACTURING CO·Filed 2022·Granted Sep 10, 2024·1 cites·10 claims
- 1886US8387381B2Electric boosterOHNO TAKAYUKI·Filed 2009·Granted Mar 5, 2013·13 cites·19 claims
- 1986US7735375B2Stress-distribution detecting semiconductor package group and detection method of stress distribution in semiconductor package using the sameRICOH KK·Filed 2008·Granted Jun 15, 2010·12 cites·4 claims
- 2086US7156447B2Door-opening/closing apparatusMITSUI MINING & SMELTING CO·Filed 2003·Granted Jan 2, 2007·31 cites·11 claims
- 2186US6921199B2Temperature sensorRICOH KK·Filed 2003·Granted Jul 26, 2005·33 cites·12 claims
- 2285US9088758B2Mark information recording apparatus, mark information presenting apparatus, mark information recording method, and mark information presenting methodKIMOTO MASASHI·Filed 2012·Granted Jul 21, 2015·5 cites·5 claims
- 2385US7843253B2Reference voltage generating circuit and constant voltage circuitRICOH CO LTD·Filed 2008·Granted Nov 30, 2010·14 cites·8 claims
- 2484US9282254B2Image pickup module operable to switch methods for driving a lens in an optical axis directionFUJIFILM CORP·Filed 2014·Granted Mar 8, 2016·6 cites·4 claims
- 2583US8929079B2Electronic control deviceWATANABE HIROFUMI·Filed 2012·Granted Jan 6, 2015·6 cites·13 claims
- 2683US8670234B2Electronic control deviceNAKANO KAZUHIKO·Filed 2012·Granted Mar 11, 2014·8 cites·8 claims
- 2782USD923680SElectric rotary gripperSMC CORP·Filed 2020·Granted Jun 29, 2021·9 cites·1 claims
- 2882US9749566B2Imaging device and electronic deviceYONEDA KAZUHIRO·Filed 2015·Granted Aug 29, 2017·4 cites·15 claims
- 2982US7368715B2Semiconductor apparatus and infrared light sensorRICOH KK·Filed 2006·Granted May 6, 2008·9 cites·12 claims
- 3080US11444516B2Electronic control deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Sep 13, 2022·2 cites·16 claims
- 3180US5316960AC-MOS thin film transistor device manufacturing methodRICOH KK·Filed 1993·Granted May 31, 1994·47 cites·12 claims
- 3279USD578147SElectric actuatorSMC CORP·Filed 2008·Granted Oct 7, 2008·26 cites·1 claims
- 3379US6600305B2Voltage generating circuit and reference voltage source circuit employing field effect transistorsRICOH KK·Filed 2002·Granted Jul 29, 2003·21 cites·56 claims
- 3479US5825673ADevice, method, and software products for extracting circuit-simulation parametersRICOH KK·Filed 1996·Granted Oct 20, 1998·45 cites·28 claims
- 3578US8772722B2Temperature sensor and living body detector using temperature sensorNOGUCHI HIDETAKA·Filed 2010·Granted Jul 8, 2014·4 cites·12 claims
- 3678US7078954B2Temperature sensing circuitRICOH KK·Filed 2003·Granted Jul 18, 2006·20 cites·13 claims
- 3778US6271730B1Voltage-controlled oscillator including current control elementRICOH KK·Filed 1998·Granted Aug 7, 2001·35 cites·21 claims
- 3876US10311320B2Mark information recording apparatus, mark information presenting apparatus, mark information recording method, and mark information presenting methodSONY CORP·Filed 2017·Granted Jun 4, 2019·1 cites·7 claims
- 3976US8785777B2Actuator control device, and method of manufacturing circuit device in actuator control deviceYASUKAWA DAISUKE·Filed 2010·Granted Jul 22, 2014·5 cites·7 claims
- 4076US7080861B2Anti-panic mechanism of vehicle door latch deviceMITSUI MINING & SMELTING CO·Filed 2003·Granted Jul 25, 2006·25 cites·1 claims
- 4175US10833621B2Drive control device for electric motor and drive control method for sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Nov 10, 2020·1 cites·19 claims
- 4275US9197220B2Method for resetting photoelectric conversion device, and photoelectric conversion deviceNAT INST OF ADVANCED IND SCIEN·Filed 2012·Granted Nov 24, 2015·1 cites·12 claims
- 4375US8959908B2Brake controllerKIKUCHI KENJI·Filed 2009·Granted Feb 24, 2015·6 cites·8 claims
- 4474US10235029B2Information processing apparatus, information processing methodSONY CORP·Filed 2013·Granted Mar 19, 2019·1 cites·25 claims
- 4574US7335967B2Semiconductor deviceRICOH KK·Filed 2005·Granted Feb 26, 2008·5 cites·6 claims
- 4674US2024397259A1Bioacoustic sensor and stethoscope including the sameMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 4773US11757336B2Electronic control deviceHITACHI ASTEMO LTD·Filed 2022·Granted Sep 12, 2023·0 cites·4 claims
- 4873US11419208B2Electronic circuit board and electronic circuit deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Aug 16, 2022·2 cites·7 claims
- 4973US7592854B2Temperature sensing circuitRICOH KK·Filed 2006·Granted Sep 22, 2009·7 cites·15 claims
- 5073US7585101B2Extruder and cylinder exchanging method thereofJAPAN STEEL WORKS LTD·Filed 2006·Granted Sep 8, 2009·4 cites·14 claims
Showing the top 50 of 145 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hirofumi Watanabe files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →