Inventor · disambiguated record
Masahide Hirasawa
Also filed as: HIRASAWA MASAHIDE
76 granted patents·1 pending application·1,760 citations·filing 1984–2008
99Inventor score
Files withCANON KK76
Top patents by PatentIndex Score
77 records- 0198US7719605B2Video camera apparatus including automatic focusingCANON KK·Filed 2008·Granted May 18, 2010·57 cites·4 claims
- 0289US7349011B2Image pickup control apparatus, image pickup control method, image pickup control system, and storage mediumCANON KK·Filed 2005·Granted Mar 25, 2008·10 cites·9 claims
- 0388US6236431B1Video camera apparatus with distance measurement area adjusted based on electronic magnificationCANON KK·Filed 1996·Granted May 22, 2001·80 cites·14 claims
- 0486US6091450AImage pickup apparatus having function of detecting proximity of eyeCANON KK·Filed 1997·Granted Jul 18, 2000·94 cites·26 claims
- 0585US5005956ALens position control deviceCANON KK·Filed 1989·Granted Apr 9, 1991·52 cites·14 claims
- 0685US4920369ALens position control deviceCANON KK·Filed 1989·Granted Apr 24, 1990·51 cites·13 claims
- 0784US5463442AInterchangeable lens unit for use in camera systemCANON KK·Filed 1992·Granted Oct 31, 1995·24 cites·63 claims
- 0884US5369461AAutomatic focus adjusting device in camera systemCANON KK·Filed 1993·Granted Nov 29, 1994·56 cites·57 claims
- 0982US5986706AElectronic apparatusCANON KK·Filed 1996·Granted Nov 16, 1999·73 cites·26 claims
- 1082US5038163ACamera systemCANON KK·Filed 1989·Granted Aug 6, 1991·38 cites·52 claims
- 1181US5144491AApparatus with lens control deviceCANON KK·Filed 1990·Granted Sep 1, 1992·54 cites·25 claims
- 1281US4950054ALens position control deviceCANON KK·Filed 1989·Granted Aug 21, 1990·42 cites·10 claims
- 1380US5933187AVideo camera apparatus with automatic focus operation dependent on electronic zoom conditionCANON KK·Filed 1996·Granted Aug 3, 1999·44 cites·18 claims
- 1479US5387960ACamera apparatusCANON KK·Filed 1993·Granted Feb 7, 1995·40 cites·42 claims
- 1577US6980233B1Image pickup control apparatus, image pickup control method, image pickup control system, and storage mediumCANON KK·Filed 1999·Granted Dec 27, 2005·42 cites·9 claims
- 1675US7336300B2Image pickup control apparatus, image pickup control method, image pickup control system, and storage mediumCANON KK·Filed 2005·Granted Feb 26, 2008·3 cites·3 claims
- 1775US5438190ALens control deviceCANON KK·Filed 1994·Granted Aug 1, 1995·37 cites·69 claims
- 1874US5946504AAutomatic focus adjusting device in camera systemCANON KK·Filed 1994·Granted Aug 31, 1999·30 cites·17 claims
- 1973US6850280B2Automatic focus adjusting device with distance measuring area selection based on discrimination of a state of focusCANON KK·Filed 2001·Granted Feb 1, 2005·7 cites·3 claims
- 2073US4985781ARecording and/or reproducing apparatus in which a reference signal is used in a recording and/or reproducing part as well as in another partCANON KK·Filed 1990·Granted Jan 15, 1991·36 cites·5 claims
- 2172US6580453B1Image sensing apparatusCANON KK·Filed 1997·Granted Jun 17, 2003·41 cites·20 claims
- 2272US6028981AImage recording apparatusCANON KK·Filed 1994·Granted Feb 22, 2000·32 cites·16 claims
- 2371US5579048ASelection apparatus using an observer's line of sightCANON KK·Filed 1994·Granted Nov 26, 1996·26 cites·68 claims
- 2471US5424776ALens control device for perfoming focusing during lens initializationCANON KK·Filed 1993·Granted Jun 13, 1995·30 cites·19 claims
- 2570US5200860ALens position control deviceCANON KK·Filed 1992·Granted Apr 6, 1993·33 cites·26 claims
- 2670US5164756ACameraCANON KK·Filed 1992·Granted Nov 17, 1992·30 cites·31 claims
- 2768US5745798AElectronic apparatusCANON KK·Filed 1996·Granted Apr 28, 1998·33 cites·23 claims
- 2867US6285154B1Lens controlling apparatusCANON KK·Filed 1996·Granted Sep 4, 2001·30 cites·19 claims
- 2967US5315340AVideo camera apparatusCANON KK·Filed 1992·Granted May 24, 1994·25 cites·16 claims
- 3067US5287223ALens drive controlling apparatusCANON KK·Filed 1991·Granted Feb 15, 1994·24 cites·27 claims
- 3166US7456898B2Video camera apparatus including automatic focusingCANON KK·Filed 2004·Granted Nov 25, 2008·4 cites·3 claims
- 3266US6424376B1Selection apparatus using an observer's line of sightCANON KK·Filed 1996·Granted Jul 23, 2002·26 cites·18 claims
- 3366US6356307B2Lens control device with AF restart featureCANON KK·Filed 1998·Granted Mar 12, 2002·25 cites·12 claims
- 3466US5517238ACamera with image stabilization controlled by focus detectionCANON KK·Filed 1994·Granted May 14, 1996·20 cites·21 claims
- 3566US5455649AOptical system controlling apparatusCANON KK·Filed 1994·Granted Oct 3, 1995·27 cites·41 claims
- 3664US5488414AVideo camera apparatus having mode selection display on electronic viewfinder screenCANON KK·Filed 1994·Granted Jan 30, 1996·21 cites·11 claims
- 3763US5949586ALens control deviceCANON KK·Filed 1997·Granted Sep 7, 1999·22 cites·33 claims
- 3862US5786853ALens control deviceCANON KK·Filed 1995·Granted Jul 28, 1998·21 cites·20 claims
- 3962US5061954AAutomatic focus adjustment systemCANON KK·Filed 1990·Granted Oct 29, 1991·22 cites·25 claims
- 4061US6278489B1Image pickup apparatus for changing a position of a detection areaCANON KK·Filed 1995·Granted Aug 21, 2001·24 cites·28 claims
- 4159US6473120B2Image pickup apparatus for applying predetermined signal processing in conjunction with an image shifting mechanismCANON KK·Filed 1997·Granted Oct 29, 2002·22 cites·7 claims
- 4259US6097511AVideo camera with interruption of recording upon detection of improper mounting of interchangeable lensCANON KK·Filed 1994·Granted Aug 1, 2000·18 cites·34 claims
- 4359US5638217ALens control deviceCANON KK·Filed 1994·Granted Jun 10, 1997·17 cites·62 claims
- 4459US5325145ACamera systemCANON KK·Filed 1992·Granted Jun 28, 1994·15 cites·20 claims
- 4558US5594311ALens controlling apparatusCANON KK·Filed 1994·Granted Jan 14, 1997·15 cites·22 claims
- 4658US4878128AVideo signal reproducing apparatusCANON KK·Filed 1987·Granted Oct 31, 1989·11 cites·5 claims
- 4755US6384928B2Image processing apparatus and systemCANON KK·Filed 1998·Granted May 7, 2002·33 cites·35 claims
- 4855US5323200AOptical apparatus having lens control deviceCANON KK·Filed 1992·Granted Jun 21, 1994·18 cites·15 claims
- 4955US5276318AOptical apparatus with lens position detection and controlCANON KK·Filed 1992·Granted Jan 4, 1994·15 cites·23 claims
- 5054US5570236ALens drive controlling apparatusCANON KK·Filed 1993·Granted Oct 29, 1996·14 cites·25 claims
Showing the top 50 of 77 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →