Inventor · disambiguated record
Hisashi Tokumaru
Also filed as: TOKUMARU HISASHI
35 granted patents·590 citations·filing 1978–2000
98Inventor score
Top patents by PatentIndex Score
35 records- 0192US4951075AZoom cameraMINOLTA CAMERA KK·Filed 1989·Granted Aug 21, 1990·87 cites·22 claims
- 0289US4903065AFocus condition detecting deviceMINOLTA CAMERA KK·Filed 1988·Granted Feb 20, 1990·23 cites·13 claims
- 0387US4448499AImage transmitter for copying apparatus of slit exposure scanning typeMINOLTA CAMERA KK·Filed 1981·Granted May 15, 1984·21 cites·16 claims
- 0485US5274414ACamera having a varifocal lensMINOLTA CAMERA KK·Filed 1989·Granted Dec 28, 1993·15 cites·12 claims
- 0582US4591235AZoom lens systemMINOLTA CAMERA KK·Filed 1982·Granted May 27, 1986·31 cites·14 claims
- 0681US6339510B1Camera having a varifocal lensMINOLTA CO LTD·Filed 1994·Granted Jan 15, 2002·14 cites·3 claims
- 0781US5196877AViewfinder framing device for zoom lens cameraMINOLTA CAMERA KK·Filed 1992·Granted Mar 23, 1993·20 cites·16 claims
- 0878US4516839AZoom lens systemMINOLTA CAMERA KK·Filed 1982·Granted May 14, 1985·33 cites·13 claims
- 0977US5327290ACompact size zoom lens systemMINOLTA CAMERA KK·Filed 1990·Granted Jul 5, 1994·45 cites·42 claims
- 1076US6018631ACamera having a varifocal lensMINOLTA CO LTD·Filed 1994·Granted Jan 25, 2000·11 cites·27 claims
- 1175US4636040AZoom lens systemMINOLTA CAMERA KK·Filed 1983·Granted Jan 13, 1987·24 cites·15 claims
- 1274US5369460ACamera having a varifocal lensMINOLTA CAMERA KK·Filed 1993·Granted Nov 29, 1994·10 cites·12 claims
- 1371US4759617AZoom lens systemMINOLTA CAMERA KK·Filed 1986·Granted Jul 26, 1988·23 cites·15 claims
- 1470US4846562AZoom lens systemMINOLTA CAMERA KK·Filed 1988·Granted Jul 11, 1989·22 cites·4 claims
- 1566US6429975B1Illumination optical system and projector using sameMINOLTA CO LTD·Filed 2000·Granted Aug 6, 2002·10 cites·15 claims
- 1664US5640223ACamera having a varifocal lensMINOLTA CAMERA KK·Filed 1995·Granted Jun 17, 1997·5 cites·14 claims
- 1763US5105311AZoom lens system having high zoom ratio ranging to wide field angleMINOLTA CAMERA KK·Filed 1990·Granted Apr 14, 1992·27 cites·7 claims
- 1860US5258802ACamera system which compensates for defocusing during operationMINOLTA CAMERA KK·Filed 1992·Granted Nov 2, 1993·19 cites·18 claims
- 1959US4474459AOptical projection systemMINOLTA CAMERA KK·Filed 1983·Granted Oct 2, 1984·10 cites·18 claims
- 2057US4449793AInverted telephoto type wide angle lens systemMINOLTA CAMERA KK·Filed 1981·Granted May 22, 1984·14 cites·19 claims
- 2157US4234894AReflecting optical system for projection televisionMINOLTA CAMERA KK·Filed 1978·Granted Nov 18, 1980·10 cites·9 claims
- 2256US4806003AInverted-telephoto type wide angle lens systemMINOLTA CAMERA KK·Filed 1987·Granted Feb 21, 1989·16 cites·10 claims
- 2354US5153777ACompact-size zoom lens systemMINOLTA CAMERA KK·Filed 1990·Granted Oct 6, 1992·17 cites·27 claims
- 2452US5084722AFocus condition detecting deviceMINOLTA CAMERA KK·Filed 1990·Granted Jan 28, 1992·5 cites·6 claims
- 2551US5122825AZoom cameraMINOLTA CAMERA KK·Filed 1990·Granted Jun 16, 1992·15 cites·7 claims
- 2648US4844600AZoom lens systemMINOLTA CAMERA KK·Filed 1987·Granted Jul 4, 1989·10 cites·6 claims
- 2746US4764000ATelephoto lens system with three relatively shiftable lens groupsMINOLTA CAMERA KK·Filed 1986·Granted Aug 16, 1988·11 cites·9 claims
- 2845US4916473AFocus detection apparatusMINOLTA CAMERA KK·Filed 1988·Granted Apr 10, 1990·10 cites·6 claims
- 2943US4908505ASystem for detecting the focus condition of a cata-dioptric lens and interchangeable lens for use therewithMINOLTA CAMERA KK·Filed 1988·Granted Mar 13, 1990·9 cites·9 claims
- 3040US4794416AFocus detection apparatusMINOLTA CAMERA KK·Filed 1986·Granted Dec 27, 1988·8 cites·7 claims
- 3139US5365297ACamera system with zoom lens having presettable focal lengthsMINOLTA CAMERA KK·Filed 1992·Granted Nov 15, 1994·6 cites·9 claims
- 3236US5274409ACamera with multiple lens driving modesMINOLTA CAMERA KK·Filed 1992·Granted Dec 28, 1993·5 cites·50 claims
- 3335US4878076AExposure controlling system and interchangeable lens thereforMINOLTA CAMERA KK·Filed 1989·Granted Oct 31, 1989·1 cites·4 claims
- 3433US4382662AInverted telephoto type wide angle lens systemMINOLTA CAMERA KK·Filed 1980·Granted May 10, 1983·2 cites·25 claims
- 3530US4286847ALightweight inverted telephoto type wide angle lens systemMINOLTA CAMERA KK·Filed 1979·Granted Sep 1, 1981·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →