Inventor · disambiguated record
Masahiko Takahashi
Also filed as: TAKAHASHI MASAHIKO
89 granted patents·26 pending applications·1,175 citations·filing 1985–2025
99Inventor score
Top patents by PatentIndex Score
115 records- 0198US5281797AShort wavelength optical disk head having a changeable apertureHITACHI LTD·Filed 1992·Granted Jan 25, 1994·143 cites·10 claims
- 0295US5959943AInformation recording medium with clock information thereinHITACHI LTD·Filed 1997·Granted Sep 28, 1999·69 cites·2 claims
- 0392US9011092B2Multi-blade centrifugal fan and air conditioner employing the sameEGUCHI TSUYOSHI·Filed 2010·Granted Apr 21, 2015·13 cites·6 claims
- 0491US5062091AMagneto-optical recording method and apparatus capable of overwriting data using a radiation beamHITACHI LTD·Filed 1989·Granted Oct 29, 1991·44 cites·14 claims
- 0590US5871881AMultilayer optical information mediumHITACHI LTD·Filed 1996·Granted Feb 16, 1999·71 cites·69 claims
- 0687US8689586B2Glass-melting device for producing glass fiber and method for producing glass fiberHIRAYAMA NORIO·Filed 2010·Granted Apr 8, 2014·11 cites·17 claims
- 0787US6683823B2Method for reproducing information on a recording mediumHITACHI LTD·Filed 2002·Granted Jan 27, 2004·22 cites·3 claims
- 0887US5737927ACryogenic cooling apparatus and cryogenic cooling method for cooling object to very low temperaturesTOSHIBA KK·Filed 1997·Granted Apr 14, 1998·75 cites·33 claims
- 0987US5377212ASolid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic waveHITACHI LTD·Filed 1992·Granted Dec 27, 1994·57 cites·40 claims
- 1086US9291748B2Anti-reflection structure with graded refractive index layer and optical apparatus including sameMOMOKI KAZUHIKO·Filed 2011·Granted Mar 22, 2016·7 cites·15 claims
- 1185US11011386B2Etching method and plasma treatment deviceTOKYO ELECTRON LTD·Filed 2019·Granted May 18, 2021·3 cites·19 claims
- 1284USD1050071SHeadphonesAUDIO TECHNICA KK·Filed 2023·Granted Nov 5, 2024·7 cites·1 claims
- 1384US7009834B2Solid electrolytic capacitor, transmission-line device, method of producing the same, and composite electronic component using the sameNEC TOKIN CORP·Filed 2005·Granted Mar 7, 2006·12 cites·40 claims
- 1483US8689588B2Glass-melting device for producing glass fiber and method for producing glass fiber using sameHIRAYAMA NORIO·Filed 2010·Granted Apr 8, 2014·7 cites·10 claims
- 1580US10473823B2Fine structure, optical member, antireflection film, water-repellent film, substrate for mass spectrometry, phase plate, process for producing fine structure, and process for producing antireflection filmCANON KK·Filed 2013·Granted Nov 12, 2019·5 cites·23 claims
- 1680US5368986AInformation recording media, manufacturing method for the same, and information recording methodHITACHI LTD·Filed 1992·Granted Nov 29, 1994·50 cites·8 claims
- 1780US2025370391A1Calibration deviceKONICA MINOLTA INC·Filed 2025·Application pending·0 cites
- 1879US5751827APiezoelectric speakerPRIMO MICROPHONES INC·Filed 1995·Granted May 12, 1998·65 cites·10 claims
- 1978US8004950B2Optical pickup, optical information recording and reproducing apparatus and method for optically recording and reproducing informationHITACHI LTD·Filed 2008·Granted Aug 23, 2011·3 cites·16 claims
- 2078US5711157ACooling system having a plurality of cooling stages in which refrigerant-filled chamber type refrigerators are usedTOSHIBA KK·Filed 1996·Granted Jan 27, 1998·45 cites·26 claims
- 2177US6173761B1Cryogenic heat pipeTOSHIBA KK·Filed 1997·Granted Jan 16, 2001·43 cites·11 claims
- 2277US5170383AMagneto-optical data recording systemHITACHI LTD·Filed 1989·Granted Dec 8, 1992·13 cites·23 claims
- 2375US7595235B2Solid electrolytic capacitor, transmission-line device, method of producing the same, and composite electronic component using the sameNEC TOKIN CORP·Filed 2006·Granted Sep 29, 2009·7 cites·8 claims
- 2475US5960868AAdiabatic apparatusTOSHIBA KK·Filed 1998·Granted Oct 5, 1999·28 cites·14 claims
- 2575US5447034ACryogenic refrigerator and regenerative heat exchange materialTOSHIBA KK·Filed 1993·Granted Sep 5, 1995·41 cites·30 claims
- 2675US5270987AMagneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium thereforHITACHI LTD·Filed 1990·Granted Dec 14, 1993·22 cites·53 claims
- 2774US7313683B2Computer system and method which boots from a bootup-memory-image stored in nonvolatile memory and copies data within an address range of predetermined width to main memory so that the system boots quickly after initializationNEC CORP·Filed 2004·Granted Dec 25, 2007·18 cites·24 claims
- 2873US8953194B2Image forming apparatusKONICA MINOLTA INC·Filed 2013·Granted Feb 10, 2015·2 cites·7 claims
- 2973US5420846ARecording medium having a plurality of nonlinear transmission characteristicsHITACHI LTD·Filed 1993·Granted May 30, 1995·20 cites·21 claims
- 3073US5339650ACryostatTOSHIBA KK·Filed 1992·Granted Aug 23, 1994·39 cites·28 claims
- 3171US6836454B2Method and apparatus for reading and writing information onto and from information recording disksHITACHI LTD·Filed 2001·Granted Dec 28, 2004·8 cites·26 claims
- 3271US4645046AParking lock mechanism for a vehicle having an infinitely variable transmissionFUJI HEAVY IND LTD·Filed 1985·Granted Feb 24, 1987·26 cites·2 claims
- 3370US8753527B2Plasma etching method and plasma etching apparatusNISHIZUKA TETSUYA·Filed 2009·Granted Jun 17, 2014·3 cites·11 claims
- 3470US6794026B2Radiating sheet and PDP panelMOCHIDA CORP·Filed 2002·Granted Sep 21, 2004·21 cites·5 claims
- 3569US9644631B2Multi-blade centrifugal fan and air conditioner employing the sameMITSUBISHI HEAVY IND LTD·Filed 2015·Granted May 9, 2017·1 cites·6 claims
- 3669US6852573B2Heat sink sheet and fabrication method thereforMOCHIDA CORP·Filed 2001·Granted Feb 8, 2005·21 cites·3 claims
- 3768US8930659B2Computer system, memory management method and program thereofTAKAHASHI MASAHIKO·Filed 2006·Granted Jan 6, 2015·4 cites·3 claims
- 3868US8396062B2System for switching between communication devices, switching method, and switching programTAKAHASHI MASAHIKO·Filed 2006·Granted Mar 12, 2013·3 cites·16 claims
- 3967US9048182B2Semiconductor device manufacturing methodTOKYO ELECTRON LTD·Filed 2014·Granted Jun 2, 2015·1 cites·7 claims
- 4066US9305691B2Superconducting magnet apparatusTOSHIBA KK·Filed 2014·Granted Apr 5, 2016·1 cites·11 claims
- 4166US2025243023A1Sheet discriminating apparatus and image forming apparatusKONICA MINOLTA INC·Filed 2025·Application pending·0 cites
- 4265US8980048B2Plasma etching apparatusTOKYO ELECTRON LTD·Filed 2014·Granted Mar 17, 2015·1 cites·5 claims
- 4365US6947277B2Surface mount type capacitor capable of sufficiently preventing electromagnetic wave noise propagationNEC TOKIN CORP·Filed 2005·Granted Sep 20, 2005·4 cites·9 claims
- 4465US2025357133A1Etching method and plasma processing apparatusTOKYO ELECTRON LTD·Filed 2025·Application pending·0 cites
- 4563US12216424B2Sheet type discrimination device, sheet type discrimination method, and sheet type discrimination programKONICA MINOLTA INC·Filed 2023·Granted Feb 4, 2025·0 cites·13 claims
- 4663US7844810B2Computer system and booting method therefor and server used for streaming on-demand a remaining part of a boot-up main memory image that includes an operating systemNEC CORP·Filed 2005·Granted Nov 30, 2010·2 cites·16 claims
- 4761US10642184B2Optical writing device and image forming apparatusKONICA MINOLTA INC·Filed 2018·Granted May 5, 2020·0 cites·9 claims
- 4861US5589306APhotosensitive resin composition for producing a relief printing plateASAHI CHEMICAL IND·Filed 1992·Granted Dec 31, 1996·18 cites·2 claims
- 4960US11169480B2HolderKONICA MINOLTA INC·Filed 2020·Granted Nov 9, 2021·0 cites·11 claims
- 5060US7924668B2Write strategy determining method, optical disc recording method, optical disc and optical disc apparatusHITACHI LTD·Filed 2007·Granted Apr 12, 2011·0 cites·10 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masahiko Takahashi 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 →