Inventor · disambiguated record
Masahiro Kawasaki
Also filed as: KAWASAKI MASAHIRO · KUREI HIROSHI · MIYATA KATSUHIKO · TAKAOKA YUKIO
166 granted patents·33 pending applications·1,789 citations·filing 1974–2021
99Inventor score
Files withASAHI OPTICAL CO LTD109HITACHI LTD23FUJITSU LTD16MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9PENTAX CORP8
Top patents by PatentIndex Score
199 records- 0197US6366737B1External flash control systemASAHI OPTICAL CO LTD·Filed 2000·Granted Apr 2, 2002·75 cites·19 claims
- 0297US4841322ACamera having interchangeable lensesASAHI OPTICAL CO LTD·Filed 1988·Granted Jun 20, 1989·62 cites·23 claims
- 0396US6351610B1External flash control systemASAHI OPTICAL CO LTD·Filed 2000·Granted Feb 26, 2002·59 cites·16 claims
- 0496US4945376ACamera having interchangeable lensesASAHI OPTICAL CO LTD·Filed 1989·Granted Jul 31, 1990·49 cites·13 claims
- 0594US6353711B1External flash control systemASAHI OPTICAL CO LTD·Filed 2000·Granted Mar 5, 2002·48 cites·18 claims
- 0693US4410258AAutomatic focus detecting device for cameraASAHI OPTICAL CO LTD·Filed 1981·Granted Oct 18, 1983·33 cites·18 claims
- 0792US5066762AThermoplastic polyurethane resin from p-phenylene diisocyanate, a poly(hexamethylene carbonate) polyol, and a short chain polyolNIPPON POLYURETHANE KOGYO KK·Filed 1990·Granted Nov 19, 1991·77 cites·20 claims
- 0890US11162849B2Temperature detecting element and temperature detecting apparatus including the sameHITACHI LTD·Filed 2017·Granted Nov 2, 2021·4 cites·13 claims
- 0989US5093680AImage magnification control device for a cameraASAHI OPTICAL CO LTD·Filed 1989·Granted Mar 3, 1992·36 cites·81 claims
- 1089US4250413ACamera power supply maintaining circuitASAHI OPTICAL CO LTD·Filed 1978·Granted Feb 10, 1981·19 cites·7 claims
- 1188US6718135B2Flash photography systemPENTAX CORP·Filed 2001·Granted Apr 6, 2004·52 cites·17 claims
- 1288US4196988AManual or automatic camera and electronic flash for use therewithASAHI OPTICAL CO LTD·Filed 1978·Granted Apr 8, 1980·15 cites·7 claims
- 1386US11397115B2Temperature detection label and article management device using sameHITACHI LTD·Filed 2018·Granted Jul 26, 2022·3 cites·14 claims
- 1485US7254318B2Recording apparatus, recording program, and recording methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 7, 2007·37 cites·14 claims
- 1585US5066969ACamera systemASAHI OPTICAL CO LTD·Filed 1989·Granted Nov 19, 1991·22 cites·35 claims
- 1685US4479062APhoto-electric conversion device with accumulation time controlASAHI OPTICAL CO LTD·Filed 1982·Granted Oct 23, 1984·33 cites·5 claims
- 1784US7145176B2Active matrix display deviceHITACHI LTD·Filed 2001·Granted Dec 5, 2006·34 cites·13 claims
- 1884US6707992B2Camera system having a communication system between a camera body and a photographing lensPENTAX CORP·Filed 2002·Granted Mar 16, 2004·20 cites·9 claims
- 1983US7081641B2Semiconductor device and manufacturing method thereofHITACHI LTD·Filed 2004·Granted Jul 25, 2006·36 cites·25 claims
- 2083US6509076B1Pressure-sensitive adhesive for pressure-sensitive adhesive layer in volume hologram laminateDAINIPPON PRINTING CO LTD·Filed 2000·Granted Jan 21, 2003·21 cites·3 claims
- 2183US5182591ACamera systemASAHI OPTICAL CO LTD·Filed 1991·Granted Jan 26, 1993·23 cites·19 claims
- 2283US4222644ADigital exposure display circuitASAHI OPTICAL CO LTD·Filed 1978·Granted Sep 16, 1980·13 cites·7 claims
- 2382US12085452B2Temperature detection ink, temperature detection ink initialization method, temperature indicator, and article management systemHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2018·Granted Sep 10, 2024·2 cites·5 claims
- 2482US7868323B2Thin film transistor device, image display device and manufacturing method thereofHITACHI LTD·Filed 2007·Granted Jan 11, 2011·9 cites·5 claims
- 2581US11635335B2Temperature sensing material, and temperature deviation time estimating system employing sameHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2018·Granted Apr 25, 2023·2 cites·14 claims
- 2681US5065175ASingle-lens reflex camera systemASAHI OPTICAL CO LTD·Filed 1989·Granted Nov 12, 1991·43 cites·62 claims
- 2781US4630121AAutomatic focus detecting circuitASAHI OPTICAL CO LTD·Filed 1984·Granted Dec 16, 1986·38 cites·4 claims
- 2880US11933677B2Temperature detecting material, temperature detecting ink using same, temperature indicator, and product control systemHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2018·Granted Mar 19, 2024·2 cites·14 claims
- 2980US11572486B2Temperature detection material, temperature detection ink using same, temperature indicator, method for manufacturing temperature detection material, and product management systemHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2017·Granted Feb 7, 2023·2 cites·10 claims
- 3080US10983013B2Temperature sensing bodyHITACHI LTD·Filed 2015·Granted Apr 20, 2021·2 cites·17 claims
- 3180US5505535ACamera system and photographing lens thereofASAHI OPTICAL CO LTD·Filed 1995·Granted Apr 9, 1996·14 cites·20 claims
- 3280US5255043AApparatus for maintaining constant image magnification in a camera systemASAHI OPTICAL CO LTD·Filed 1992·Granted Oct 19, 1993·20 cites·48 claims
- 3380US4621191ASelf-scanning type photoelectric conversion element drive device responsive to different detected light intensities for focus detectionASAHI OPTICAL CO LTD·Filed 1984·Granted Nov 4, 1986·14 cites·6 claims
- 3479US5664234ACamera system having power zoom lensASAHI OPTICAL CO LTD·Filed 1994·Granted Sep 2, 1997·13 cites·18 claims
- 3579US5315345APower zoom lens and camera system having sameASAHI OPTICAL CO LTD·Filed 1992·Granted May 24, 1994·12 cites·14 claims
- 3679US5255046ACamera systemASAHI OPTICAL CO LTD·Filed 1991·Granted Oct 19, 1993·24 cites·43 claims
- 3779US5068680ARear converter for interchangeable lens cameraASAHI OPTICAL CO LTD·Filed 1989·Granted Nov 26, 1991·14 cites·9 claims
- 3878US8785850B2Charging of a hole-free thin film phase plateMALAC MAREK·Filed 2011·Granted Jul 22, 2014·14 cites·7 claims
- 3978US6994263B2IC cardMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 7, 2006·26 cites·7 claims
- 4078US6826364B2Zoom flash and flash photography systemPENTAX CORP·Filed 2001·Granted Nov 30, 2004·14 cites·18 claims
- 4178US5713052ACamera system and photographing lens thereofASAHI OPTICAL CO LTD·Filed 1995·Granted Jan 27, 1998·12 cites·19 claims
- 4277US7083107B2Memory cardMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 1, 2006·24 cites·11 claims
- 4377US5367354AMotor driven lens and camera systemASAHI OPTICAL CO LTD·Filed 1992·Granted Nov 22, 1994·11 cites·31 claims
- 4477US5066968AAutofocusing system for a cameraASAHI OPTICAL CO LTD·Filed 1989·Granted Nov 19, 1991·36 cites·46 claims
- 4576US7754286B2Method of forming a silicon dioxide filmKST WORLD CORP·Filed 2007·Granted Jul 13, 2010·3 cites·2 claims
- 4675US5181061ACamera systemASAHI OPTICAL CO LTD·Filed 1991·Granted Jan 19, 1993·16 cites·11 claims
- 4774US4075641AAutomatic exposure control device in a cameraASAHI OPTICAL CO LTD·Filed 1975·Granted Feb 21, 1978·9 cites·11 claims
- 4874US3996593AExposure control device in a cameraASAHI OPTICAL CO LTD·Filed 1975·Granted Dec 7, 1976·9 cites·10 claims
- 4973US6970066B2Memory card reading/writing apparatus, access method, program and storage medium thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 29, 2005·21 cites·18 claims
- 5073US5159377AImage magnification control device for a cameraASAHI OPTICAL CO LTD·Filed 1991·Granted Oct 27, 1992·18 cites·27 claims
Showing the top 50 of 199 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masahiro Kawasaki 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 →