Inventor · disambiguated record
Masafumi Tanaka
Also filed as: TANAKA MASAFUMI
36 granted patents·19 pending applications·842 citations·filing 1979–2025
97Inventor score
Files withDAINIPPON PRINTING CO LTD6PANASONIC IP MAN CO LTD6RICOH KK6SHIMANO KK4JAPAN STORAGE BATTERY CO LTD3
Top patents by PatentIndex Score
55 records- 0196US6328513B1Vibration floating washer assembly and method of attaching the same to heat insulating plateNICHIAS CORP·Filed 2000·Granted Dec 11, 2001·148 cites·8 claims
- 0295US4626765AApparatus for indicating remaining battery capacityJAPAN STORAGE BATTERY CO LTD·Filed 1984·Granted Dec 2, 1986·114 cites·6 claims
- 0393US5142380AImage data processing apparatusRICOH KK·Filed 1990·Granted Aug 25, 1992·160 cites·13 claims
- 0492US6769020B2Data terminal, data distribution system, and internet telephone systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 27, 2004·107 cites·32 claims
- 0589US10162252B2Phosphor disc, phosphor wheel, light source device, projection display apparatus, and manufacturing method of phosphor discPANASONIC IP MAN CO LTD·Filed 2017·Granted Dec 25, 2018·2 cites·7 claims
- 0689US8031463B2Electronic apparatus emitting light through a unitary transparent base chassisSONY CORP·Filed 2010·Granted Oct 4, 2011·13 cites·7 claims
- 0788US10684539B2Lighting device and projection display apparatusPANASONIC IP MAN CO LTD·Filed 2018·Granted Jun 16, 2020·4 cites·2 claims
- 0887US10808152B2Adhesive composition and adhesive sheet using sameDAINIPPON PRINTING CO LTD·Filed 2015·Granted Oct 20, 2020·3 cites·19 claims
- 0986US10377444B2Bicycle electric componentSHIMANO KK·Filed 2017·Granted Aug 13, 2019·4 cites·9 claims
- 1085US10474019B2Phosphor disc, phosphor wheel, light source device, projection display apparatus, and manufacturing method of phosphor discPANASONIC IP MAN CO LTD·Filed 2018·Granted Nov 12, 2019·1 cites·13 claims
- 1185US9678248B2Antireflective article, image display device, production mold for antireflective article and production method for antireflective article production moldDAINIPPON PRINTING CO LTD·Filed 2013·Granted Jun 13, 2017·6 cites·14 claims
- 1285US9442222B2Antireflective article, image display device, and production mold for antireflective articleDAINIPPON PRINTING CO LTD·Filed 2013·Granted Sep 13, 2016·7 cites·15 claims
- 1385US8125771B2Electronic apparatusYUKAWA SHUHEI·Filed 2007·Granted Feb 28, 2012·15 cites·13 claims
- 1483US9391595B2Clock signal generation circuit, detection device, sensor, electronic apparatus, and moving objectSEIKO EPSON CORP·Filed 2014·Granted Jul 12, 2016·6 cites·20 claims
- 1583US5216516AOrthogonal transformation arithmetic unitRICOH COMPANY INC·Filed 1991·Granted Jun 1, 1993·67 cites·8 claims
- 1681US12135406B2Optical film, and polarizing plate, surface plate, image display panel and image display device using the optical film, and method for producing the optical film, and method for selecting optical film, and evaluation method of finger print wiping propertyDAINIPPON PRINTING CO LTD·Filed 2024·Granted Nov 5, 2024·0 cites·17 claims
- 1780US7695149B2Electronic apparatus emitting light through a unitary transparent base chassisSONY CORP·Filed 2007·Granted Apr 13, 2010·9 cites·3 claims
- 1879US12248121B2Optical film, and polarizing plate, surface plate, image display panel and image display device using the optical film, and method for producing the optical film, and method for selecting optical film, and evaluation method of finger print wiping propertyDAINIPPON PRINTING CO LTD·Filed 2023·Granted Mar 11, 2025·0 cites·17 claims
- 1977US10268111B2Phosphor wheel, light source device, and projector-type image display apparatusPANASONIC IP MAN CO LTD·Filed 2017·Granted Apr 23, 2019·2 cites·20 claims
- 2076US5497194AElectronic camera for photographing and recording an image and for recording and reproducing a voiceRICOH KK·Filed 1992·Granted Mar 5, 1996·44 cites·5 claims
- 2172US9863604B2Phosphor wheel, light source device, and projection image display apparatusPANASONIC IP MAN CO LTD·Filed 2016·Granted Jan 9, 2018·1 cites·10 claims
- 2272US2025155605A1Optical film, and polarizing plate, surface plate, image display panel and image display device using the optical film, and method for producing the optical film, and method for selecting optical film, and evaluation method of finger print wiping propertyDAINIPPON PRINTING CO LTD·Filed 2025·Application pending·0 cites
- 2368US11993344B2Bicycle electric componentSHIMANO KK·Filed 2021·Granted May 28, 2024·0 cites·20 claims
- 2465US5154985ABattery with a spare batteryJAPAN STORAGE BATTERY CO LTD·Filed 1990·Granted Oct 13, 1992·41 cites·7 claims
- 2562US5016207AHigh-speed digital filter processor including parallel paths for processing data, suitable for use in spatial filter image processingRICOH KK·Filed 1990·Granted May 14, 1991·17 cites·34 claims
- 2661US11052967B2Bicycle electric componentSHIMANO KK·Filed 2019·Granted Jul 6, 2021·0 cites·6 claims
- 2757US2024102089A1Method for Evaluating Adapter Ligation Efficiency in Sequencing of DNA SampleGENODIVE PHARMA INC·Filed 2021·Application pending·0 cites
- 2856US5268853AOrthogonal transformation processor for compressing informationRICOH KK·Filed 1990·Granted Dec 7, 1993·24 cites·5 claims
- 2955US10394110B2Phosphor wheel module, light source device, and projection display apparatusPANASONIC IP MAN CO LTD·Filed 2017·Granted Aug 27, 2019·0 cites·19 claims
- 3050US10657999B2Plasma CVD device and method of manufacturing magnetic recording mediumADVANCED MATERIAL TECH INC·Filed 2014·Granted May 19, 2020·0 cites·12 claims
- 3150US7306773B2Holding material for catalytic converterNICHIAS CORP·Filed 2003·Granted Dec 11, 2007·6 cites·6 claims
- 3249US11203291B2Controller and control systemSHIMANO KK·Filed 2018·Granted Dec 21, 2021·0 cites·12 claims
- 3349US9047043B2Electronic apparatusYUKAWA SHUHEI·Filed 2012·Granted Jun 2, 2015·0 cites·15 claims
- 3447US2011177260A1Plasma cvd device, method for depositing thin film, and method for producing magnetic recording mediumHONDA YUUJI·Filed 2009·Application pending·0 cites
- 3544US5331585AOrthogonal transformation processor for compressing informationRICOH KK·Filed 1993·Granted Jul 19, 1994·13 cites·5 claims
- 3644US4945011AStorage battery provided with electrolytic solution stirring deviceJAPAN STORAGE BATTERY CO LTD·Filed 1989·Granted Jul 31, 1990·10 cites·4 claims
- 3744US2005152458A1Error masking method using moving picture electronic watermark of videoTECHNO MATHEMATICAL CO LTD·Filed 2002·Application pending·0 cites
- 3844US2005049556A1Liquid injector in which a device for detecting the pressure exerted upon the liquid syringe piston is not arranged on a movable partNEMOTO KYORINDO CO LTD·Filed 2004·Application pending·0 cites
- 3943US5359549AOrthogonal transformation processor for compressing informationRICOH KK·Filed 1993·Granted Oct 25, 1994·14 cites·10 claims
- 4042US2012133907A1Cooling unit, cooling apparatus, and projection display apparatusOTANI SOSUKE·Filed 2011·Application pending·0 cites
- 4142US2011188008A1Projection display apparatusSANYO ELECTRIC CO·Filed 2011·Application pending·0 cites
- 4242US2004170336A1Dct matrix decomposing method and dct deviceFiled 2002·Application pending·0 cites
- 4342US2012026070A1Projection display apparatusOZAKI AZUSA·Filed 2011·Application pending·0 cites
- 4441US2003185724A1Holding material for catalytic converter and method for producing the sameFiled 2003·Application pending·0 cites
- 4541US2002095245A1Electronic deviceAIWA CO·Filed 2001·Application pending·0 cites
- 4640US2012077172A1Presentation systemWATANABE TOHRU·Filed 2011·Application pending·0 cites
- 4740US2012133894A1Projection display apparatusTANAKA MASAFUMI·Filed 2011·Application pending·0 cites
- 4839US4327445AFrequency converterHITACHI ELECTRONICS·Filed 1979·Granted Apr 27, 1982·4 cites·4 claims
- 4939US2004152979A1Liquid injection system for detecting when piston pusher of liquid injector grips piston flange of liquid syringeNEMOTO KYORINDO CO LTD·Filed 2003·Application pending·0 cites
- 5038US2004131224A1Method for burying data in image, and method of extracting the dataFiled 2002·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →