Inventor · disambiguated record
Sumio Hosaka
Also filed as: HOSAKA SUMIO
67 granted patents·4 pending applications·3,788 citations·filing 1976–2011
99Inventor score
Files withHITACHI LTD45PIONEER ELECTRONIC CORP17SEMICONDUCTOR TECH ACAD RES CT3UNIV GUNMA NAT UNIV CORP2HITACHI CONSTRUCTION MACHINERY1
Top patents by PatentIndex Score
71 records- 0198US6768556B1Near-field optical probe, near-field optical microscope and optical recording/reproducing device with near-field optical probeHITACHI LTD·Filed 2000·Granted Jul 27, 2004·159 cites·20 claims
- 0297US5436448ASurface observing apparatus and methodHITACHI LTD·Filed 1993·Granted Jul 25, 1995·134 cites·24 claims
- 0397US4480910APattern forming apparatusHITACHI LTD·Filed 1982·Granted Nov 6, 1984·1.5k cites·15 claims
- 0494US5282186AMethod and apparatus for recording and reproducing picture information and recording mediumPIONEER ELECTRONIC CORP·Filed 1993·Granted Jan 25, 1994·80 cites·16 claims
- 0593US4703369AVideo format signal recording and reproducing methodPIONEER ELECTRONIC CORP·Filed 1984·Granted Oct 27, 1987·74 cites·16 claims
- 0691US4057347AOptical exposure apparatusHITACHI LTD·Filed 1976·Granted Nov 8, 1977·56 cites·5 claims
- 0790US4441206APattern detecting apparatusHITACHI LTD·Filed 1981·Granted Apr 3, 1984·79 cites·3 claims
- 0889US6534206B1Information recording media and information recording driveHITACHI LTD·Filed 2000·Granted Mar 18, 2003·24 cites·1 claims
- 0989US6472047B1Magnetic recording diskHITACHI LTD·Filed 2000·Granted Oct 29, 2002·23 cites·11 claims
- 1089US5796706AInformation recording apparatusHITACHI LTD·Filed 1997·Granted Aug 18, 1998·59 cites·4 claims
- 1189US5679911AKaraoke reproducing apparatus which utilizes data stored on a recording medium to make the apparatus more user friendlyPIONEER ELECTRONIC CORP·Filed 1994·Granted Oct 21, 1997·44 cites·16 claims
- 1289US5537409ASynchronizing system for time-divided video and audio signalsPIONEER ELECTRONIC CORP·Filed 1994·Granted Jul 16, 1996·94 cites·10 claims
- 1388US6410133B1Magnetic recording disk, method of the magnetic recording disk and magnetic recording apparatusHITACHI LTD·Filed 2000·Granted Jun 25, 2002·21 cites·6 claims
- 1488US5065252AMethod and apparatus for recording and reproducing picture information enabling the mixing of images of a video format signal and graphic codes recorded on a single recording mediumPIONEER ELECTRONIC CORP·Filed 1989·Granted Nov 12, 1991·64 cites·7 claims
- 1587US5043826AMethod and apparatus for recording and reproducing picture information and timely reproducing images by graphic codesPIONEER ELECTRONIC CORP·Filed 1989·Granted Aug 27, 1991·59 cites·7 claims
- 1687US5010417APlayback method for use in a recording medium playing apparatus using information control signalsPIONEER ELECTRONIC CORP·Filed 1988·Granted Apr 23, 1991·57 cites·5 claims
- 1787US4455485ALaser beam scanning systemHITACHI LTD·Filed 1981·Granted Jun 19, 1984·65 cites·5 claims
- 1885US6749955B2Information recording media and information recording driveHITACHI LTD·Filed 2003·Granted Jun 15, 2004·16 cites·7 claims
- 1985US5063551AMethod and apparatus of recording and reproducing picture information and recording mediumPIONEER ELECTRONIC CORP·Filed 1989·Granted Nov 5, 1991·49 cites·10 claims
- 2082US4920424AMethod of recording and reproducing multi-channel information on and from recording mediumPIONEER ELECTRONIC CORP·Filed 1988·Granted Apr 24, 1990·45 cites·6 claims
- 2182US4883959AScanning surface microscope using a micro-balance device for holding a probe-tipHITACHI LTD·Filed 1988·Granted Nov 28, 1989·41 cites·6 claims
- 2282US4614432APattern detectorHITACHI LTD·Filed 1983·Granted Sep 30, 1986·32 cites·16 claims
- 2381US6687013B2Laser interferometer displacement measuring system, exposure apparatus, and electron beam lithography apparatusHITACHI LTD·Filed 2001·Granted Feb 3, 2004·15 cites·10 claims
- 2481US4841191APiezoelectric actuator control apparatusHITACHI LTD·Filed 1988·Granted Jun 20, 1989·46 cites·9 claims
- 2580US6700852B1Information recording medium with recording film with cobalt oxide crystalline particles, and information recording device including the sameHITACHI LTD·Filed 2000·Granted Mar 2, 2004·12 cites·8 claims
- 2680US6049654ARecording medium playing apparatus for reproducing same time information groupPIONEER ELECTRONIC CORP·Filed 1997·Granted Apr 11, 2000·34 cites·9 claims
- 2780US4912351APiezoelectric motorHITACHI LTD·Filed 1988·Granted Mar 27, 1990·38 cites·16 claims
- 2880US4835399ACharged particle beam apparatusHITACHI LTD·Filed 1987·Granted May 30, 1989·24 cites·7 claims
- 2979US6370107B1Recording medium and recording deviceHITACHI LTD·Filed 1999·Granted Apr 9, 2002·50 cites·13 claims
- 3079US5466883AKaraoke reproducing apparatusPIONEER ELECTRONIC CORP·Filed 1994·Granted Nov 14, 1995·29 cites·2 claims
- 3178US6304527B1Near-field optical head and manufacturing method thereof and optical recording/readout system using near-field optical headHITACHI LTD·Filed 1999·Granted Oct 16, 2001·71 cites·24 claims
- 3278US5895876ASound reproducing apparatus which utilizes data stored on a recording medium to make the apparatus more user friendly and a recording medium used in the apparatusPIONEER ELECTRONIC CORP·Filed 1996·Granted Apr 20, 1999·41 cites·32 claims
- 3378US5431055ASurface measuring apparatus using a probe microscopeHITACHI LTD·Filed 1993·Granted Jul 11, 1995·33 cites·20 claims
- 3477US5229607ACombination apparatus having a scanning electron microscope thereinHITACHI LTD·Filed 1991·Granted Jul 20, 1993·47 cites·29 claims
- 3576US6746749B2Magnetic recording diskHITACHI LTD·Filed 2002·Granted Jun 8, 2004·9 cites·4 claims
- 3676US5467642AScanning probe microscope and method of control error correctionHITACHI LTD·Filed 1993·Granted Nov 21, 1995·46 cites·26 claims
- 3774US5627815APrecision machining method precision machining apparatus and data storage apparatus using the sameHITACHI LTD·Filed 1995·Granted May 6, 1997·22 cites·12 claims
- 3873US5808977ATracking method and recording means therebyHITACHI LTD·Filed 1996·Granted Sep 15, 1998·45 cites·14 claims
- 3973US5615192AInformation recording and reproducing method and apparatusHITACHI LTD·Filed 1994·Granted Mar 25, 1997·21 cites·24 claims
- 4073US5572333ACompressed data recording method using integral logical block size and physical block size ratiosPIONEER ELECTRONIC CORP·Filed 1996·Granted Nov 5, 1996·45 cites·8 claims
- 4173US4504726APattern generatorHITACHI LTD·Filed 1981·Granted Mar 12, 1985·35 cites·5 claims
- 4272US6844092B2Optically functional element and production method and application thereforHITACHI LTD·Filed 2003·Granted Jan 18, 2005·10 cites·3 claims
- 4368US6839142B2Laser interferometer displacement measuring system, exposure apparatus, and electron beam lithography apparatusHITACHI LTD·Filed 2003·Granted Jan 4, 2005·8 cites·2 claims
- 4468US5144128ASurface microscope and surface microscopyHITACHI LTD·Filed 1991·Granted Sep 1, 1992·29 cites·5 claims
- 4567US5471064APrecision machining method, precision machining apparatus and data storage apparatus using the sameHITACHI LTD·Filed 1993·Granted Nov 28, 1995·24 cites·19 claims
- 4667US5162653AScanning tunneling microscope and surface topographic observation methodHITACHI LTD·Filed 1991·Granted Nov 10, 1992·28 cites·30 claims
- 4766US7241994B2Scanning probe microscope and specimen surface structure measuring methodRIKEN·Filed 2003·Granted Jul 10, 2007·14 cites·7 claims
- 4866US5965881AScanning probe microscope and processing apparatusHITACHI CONSTRUCTION MACHINERY·Filed 1997·Granted Oct 12, 1999·32 cites·27 claims
- 4965US5473106AKaraoke reproducing apparatusPIONEER ELECTRONIC CORP·Filed 1994·Granted Dec 5, 1995·15 cites·7 claims
- 5064US6790502B1Optically functional element and production method and application thereforHITACHI LTD·Filed 1999·Granted Sep 14, 2004·27 cites·8 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
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