Inventor · disambiguated record
Masafumi Hashimoto
Also filed as: HASHIMOTO MASAFUMI
34 granted patents·5 pending applications·814 citations·filing 1974–2015
97Inventor score
Top patents by PatentIndex Score
39 records- 0196US5408120ALight-emitting device of gallium nitride compound semiconductorTOYODA GOSEI KK·Filed 1993·Granted Apr 18, 1995·200 cites·14 claims
- 0293US4316208ALight-emitting semiconductor device and method of fabricating sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Feb 16, 1982·92 cites·16 claims
- 0389US5278433ALight-emitting semiconductor device using gallium nitride group compound with double layer structures for the n-layer and/or the i-layerTOYODA GOSEI KK·Filed 1992·Granted Jan 11, 1994·86 cites·19 claims
- 0487USRE36747ELight-emitting device of gallium nitride compound semiconductorTOYODA GOSEI KK·Filed 1997·Granted Jun 27, 2000·101 cites·14 claims
- 0586US6362017B1Light-emitting semiconductor device using gallium nitride group compoundTOYODA GOSEI KK·Filed 2000·Granted Mar 26, 2002·44 cites·24 claims
- 0685US5733796ALight-emitting semiconductor device using gallium nitride group compoundTOYODA GOSEI KK·Filed 1995·Granted Mar 31, 1998·77 cites·2 claims
- 0781US8053082B2Adhesion-enhanced polyimide film, process for its production, and laminated bodyUBE INDUSTRIES·Filed 2005·Granted Nov 8, 2011·6 cites·12 claims
- 0880US7598848B2Apparatus and method of pedestrian recognitionDENSO CORP·Filed 2007·Granted Oct 6, 2009·16 cites·12 claims
- 0971US5205905ADry etching method for semiconductorTOYODA GOSEI KK·Filed 1991·Granted Apr 27, 1993·49 cites·8 claims
- 1071US4946548ADry etching method for semiconductorTOYODA GOSEI KK·Filed 1989·Granted Aug 7, 1990·36 cites·4 claims
- 1166US3984263AMethod of producing defectless epitaxial layer of galliumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Oct 5, 1976·16 cites·8 claims
- 1263US7186456B2Easily slidable polyimide film and substrate employing itUBE INDUSTRIES·Filed 2004·Granted Mar 6, 2007·9 cites·10 claims
- 1361US6472690B1Gallium nitride group compound semiconductorTOYODA GOSEI KK·Filed 2000·Granted Oct 29, 2002·7 cites·37 claims
- 1461US4816878ANegative resistance semiconductor deviceTOYODA CHUO KENKYUSHO KK·Filed 1986·Granted Mar 28, 1989·20 cites·7 claims
- 1560US8102686B2Rectifier with PAM controller to force an input current to approximate a sine waveKATOU MASAKAZU·Filed 2008·Granted Jan 24, 2012·7 cites·6 claims
- 1660US4804988AInstant film packFUJI PHOTO FILM CO LTD·Filed 1987·Granted Feb 14, 1989·8 cites·8 claims
- 1756US10377110B2Copper clad laminateUBE INDUSTRIES·Filed 2015·Granted Aug 13, 2019·0 cites·10 claims
- 1856US2010281897A1Motor current calculation device and air conditioning apparatusDAIKIN IND LTD·Filed 2008·Application pending·0 cites
- 1955US6249012B1Light emitting semiconductor device using gallium nitride group compoundTOYODA GOSEI KK·Filed 1997·Granted Jun 19, 2001·13 cites·9 claims
- 2054US7701139B2Electric discharge lampNEC LIGHTING LTD·Filed 2007·Granted Apr 20, 2010·0 cites·2 claims
- 2153US8400083B2Current detecting device, air conditioning apparatus, correction constant calculating system and correction constant calculating methodIKEDA MOTONOBU·Filed 2008·Granted Mar 19, 2013·3 cites·13 claims
- 2253US6984536B2Method for manufacturing a gallium nitride group compound semiconductorUNIV NAGOYA·Filed 2002·Granted Jan 10, 2006·4 cites·51 claims
- 2347US6830992B1Method for manufacturing a gallium nitride group compound semiconductorTOYODA GOSEI KK·Filed 2000·Granted Dec 14, 2004·1 cites·32 claims
- 2446US7498895B2Noise filter, outdoor unit and air conditionerDAIKIN IND LTD·Filed 2003·Granted Mar 3, 2009·2 cites·16 claims
- 2546US2010045167A1Surface light-emitting device and illuminating apparatus and display apparatus including the sameKAWASHIMA YASUKI·Filed 2009·Application pending·0 cites
- 2645US8270187B2Electric power supply circuit with PAM waveform correctionNAKAMOTO RYOU·Filed 2008·Granted Sep 18, 2012·2 cites·3 claims
- 2744US2009142607A1Copper clad laminateUBE INDUSTRIES·Filed 2006·Application pending·0 cites
- 2843US9093915B2Motor current detecting device and air conditioning apparatusHASHIMOTO MASAFUMI·Filed 2008·Granted Jul 28, 2015·2 cites·13 claims
- 2941US6472689B1Light emitting deviceTOYODA GOSEI KK·Filed 2000·Granted Oct 29, 2002·0 cites·37 claims
- 3041US4925810ACompound semiconductor device and a method of manufacturing the sameTOYODA CHUO KENKYUSHO KK·Filed 1989·Granted May 15, 1990·10 cites·6 claims
- 3140US9001536B2Voltage smoothing circuit for smoothing voltage from power supplyKAGIMURA SUMIO·Filed 2010·Granted Apr 7, 2015·0 cites·16 claims
- 3240US2008032584A1Fabrication method of nitrogen discharge lampHASHIMOTO MASAFUMI·Filed 2007·Application pending·0 cites
- 3339US8450958B2Motor control method, motor control device, fan device, compressor, and pump deviceMAEDA HIROHITO·Filed 2009·Granted May 28, 2013·0 cites·13 claims
- 3438US7468897B2Rectifier without active switchesDAIKIN IND LTD·Filed 2004·Granted Dec 23, 2008·1 cites·8 claims
- 3537US8385095B2Electric power supply circuit and PAM control method for the sameDAIKIN IND LTD·Filed 2008·Granted Feb 26, 2013·0 cites·7 claims
- 3636US2002017857A1Flat-type light-emitting deviceNEC CORP·Filed 2001·Application pending·0 cites
- 3734US8218342B2Power supply deviceKATOU MASAKAZU·Filed 2008·Granted Jul 10, 2012·0 cites·6 claims
- 3834US6593599B1Light-emitting semiconductor device using gallium nitride group compoundJAPAN SCIENCE & TECH CORP·Filed 1999·Granted Jul 15, 2003·2 cites·41 claims
- 3933US10663348B2Colorimetric sensor device and image formation apparatusKONICA MINOLTA INC·Filed 2015·Granted May 26, 2020·0 cites·6 claims
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