Inventor · disambiguated record
Yasuhisa Sato
Also filed as: ISHIKAWA KAZUO · ONO YUKIHARU · SATO YASUHISA · TSUJI SADAHIKO
49 granted patents·1 pending application·815 citations·filing 1976–2025
98Inventor score
Top patents by PatentIndex Score
50 records- 0192US4294529ACameraCANON KK·Filed 1979·Granted Oct 13, 1981·21 cites·8 claims
- 0290US5693578AMethod of forming thin silicon oxide film with high dielectric breakdown and hot carrier resistanceFUJITSU LTD·Filed 1996·Granted Dec 2, 1997·111 cites·23 claims
- 0390US4842395AFinder of variable magnificationCANON KK·Filed 1988·Granted Jun 27, 1989·69 cites·21 claims
- 0480US7933665B2Method and system for teaching reference position of semiconductor wafer in automated wafer handling manufacturing equipmentRORZE CORP·Filed 2003·Granted Apr 26, 2011·29 cites·12 claims
- 0577US5504022AMethod of making a semiconductor memory device having a floating gateFUJITSU LTD·Filed 1993·Granted Apr 2, 1996·42 cites·9 claims
- 0676US4779969AFinding device of variable magnificationCANON KK·Filed 1986·Granted Oct 25, 1988·36 cites·3 claims
- 0775US2025336699A1Transport device having local purge functionRORZE CORP·Filed 2025·Application pending·0 cites
- 0874US4757336AView finder of variable magnificationCANON KK·Filed 1986·Granted Jul 12, 1988·32 cites·7 claims
- 0972US4871238APhotographic optical device with variable magnificationCANON KK·Filed 1987·Granted Oct 3, 1989·30 cites·9 claims
- 1071US4596447AConversion type varifocal lens systemCANON KK·Filed 1985·Granted Jun 24, 1986·28 cites·12 claims
- 1169US4542961ATriplet type objectiveCANON KK·Filed 1984·Granted Sep 24, 1985·22 cites·5 claims
- 1267US4702581AFlash device for cameraCANON KK·Filed 1985·Granted Oct 27, 1987·10 cites·8 claims
- 1367US4094586ACompact zoom lensCANON KK·Filed 1976·Granted Jun 13, 1978·21 cites·10 claims
- 1465US4659186ASmall size zoom lensCANON KK·Filed 1985·Granted Apr 21, 1987·23 cites·10 claims
- 1565US4217050APhotographic camera with an image of exposure condition indicia visible through a view-finder thereofCANON KK·Filed 1977·Granted Aug 12, 1980·6 cites·3 claims
- 1664US5578133ADry cleaning process for cleaning a surfaceFUJITSU LTD·Filed 1993·Granted Nov 26, 1996·32 cites·16 claims
- 1764US5270866ACompact zoom lensCANON KK·Filed 1991·Granted Dec 14, 1993·26 cites·77 claims
- 1862US4751539AVariable power finderCANON KK·Filed 1987·Granted Jun 14, 1988·20 cites·11 claims
- 1960US4815830ASmall sized zoom lensCANON KK·Filed 1984·Granted Mar 28, 1989·15 cites·14 claims
- 2059US4830474AVariable magnification optical systemCANON KK·Filed 1986·Granted May 16, 1989·18 cites·9 claims
- 2158US4715692AVarifocal type finderCANON KK·Filed 1984·Granted Dec 29, 1987·14 cites·6 claims
- 2256US4726668AZoom lens of short total lengthCANON KK·Filed 1985·Granted Feb 23, 1988·17 cites·9 claims
- 2356US4679913AVari-focal objective lens of short total lengthCANON KK·Filed 1985·Granted Jul 14, 1987·19 cites·10 claims
- 2456US4437741ALight measuring device for a single lens reflex cameraCANON KK·Filed 1982·Granted Mar 20, 1984·5 cites·5 claims
- 2555US4240699AZoom lens having extended focusing rangeCANON KK·Filed 1978·Granted Dec 23, 1980·13 cites·3 claims
- 2655US4171896APhotographic camera with an information indicating finderCANON KK·Filed 1977·Granted Oct 23, 1979·4 cites·5 claims
- 2754US5725677ADry cleaning process for cleaning a surfaceFUJITSU LTD·Filed 1996·Granted Mar 10, 1998·16 cites·18 claims
- 2854US4697882ABeam splitter for changing optical paths small tiltCANON KK·Filed 1985·Granted Oct 6, 1987·16 cites·8 claims
- 2954US4456352ALight receiving apparatus for use in single-lens reflex cameraCANON KK·Filed 1982·Granted Jun 26, 1984·5 cites·3 claims
- 3053US4413888ACompact photographic objectiveCANON KK·Filed 1981·Granted Nov 8, 1983·12 cites·2 claims
- 3152US4770508AConversion lens releasably attached behind master lensCANON KK·Filed 1986·Granted Sep 13, 1988·14 cites·8 claims
- 3251US4477155APhotographic lens of the partial focusing typeCANON KK·Filed 1982·Granted Oct 16, 1984·11 cites·3 claims
- 3350US12387959B2Transport device having local purge functionRORZE CORP·Filed 2018·Granted Aug 12, 2025·0 cites·17 claims
- 3450US4380377ACompact zoom lensCANON KK·Filed 1980·Granted Apr 19, 1983·11 cites·2 claims
- 3549US4324458ATele-objective lens with a movable sub-group for focusingCANON KK·Filed 1980·Granted Apr 13, 1982·10 cites·7 claims
- 3647US4582409AAlbada finder with display within the field of viewCANON KK·Filed 1984·Granted Apr 15, 1986·3 cites·5 claims
- 3747US4200380ACamera provided with means for giving information about photographingCANON KK·Filed 1978·Granted Apr 29, 1980·9 cites·7 claims
- 3845US11227784B2Thin plate substrate-holding device and transfer robot provided with this holding deviceRORZE CORP·Filed 2019·Granted Jan 18, 2022·0 cites·23 claims
- 3945US4643536ARear conversion lensCANON KK·Filed 1985·Granted Feb 17, 1987·10 cites·6 claims
- 4042US8193472B2SusceptorHUANG YI CHENG·Filed 2008·Granted Jun 5, 2012·0 cites·12 claims
- 4138US4695134ACompact photographic lensCANON KK·Filed 1984·Granted Sep 22, 1987·5 cites·10 claims
- 4238US4477154APhotographic objectiveCANON KK·Filed 1982·Granted Oct 16, 1984·5 cites·2 claims
- 4337US4983543AMethod of manufacturing a semiconductor integrated circuit having an interconnection wire embedded in a protective layer covering the semiconductor integrated circuitFUJITSU LTD·Filed 1989·Granted Jan 8, 1991·8 cites·14 claims
- 4436US4652091ACompact zoom lens with short back focal distanceCANON KK·Filed 1985·Granted Mar 24, 1987·5 cites·5 claims
- 4535US4486074AInterchangeable lens permitting an automatic focus-adjusting device to be removably mounted theretoCANON KK·Filed 1983·Granted Dec 4, 1984·4 cites·1 claims
- 4634US4862202AMagnification change-over device for cameraCANON KK·Filed 1988·Granted Aug 29, 1989·1 cites·45 claims
- 4733US4200358AWide-angle type zoom lensCANON KK·Filed 1978·Granted Apr 29, 1980·3 cites·4 claims
- 4832US4595270AFinder systemCANON KK·Filed 1984·Granted Jun 17, 1986·2 cites·5 claims
- 4932US4230398AZoom lens systemCANON KK·Filed 1978·Granted Oct 28, 1980·2 cites·2 claims
- 5030US4240698ALarge aperture zoom lensCANON KK·Filed 1978·Granted Dec 23, 1980·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →