Inventor · disambiguated record
Masami Ito
Also filed as: ITO MASAMI
48 granted patents·1 pending application·930 citations·filing 1977–2015
98Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD27ITO MASAMI3PANASONIC IP MAN CO LTD3TOYOTA MOTOR CO LTD3MITSUBISHI HEAVY IND LTD2
Top patents by PatentIndex Score
49 records- 0192US5980054APanel-form illuminating systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 9, 1999·104 cites·13 claims
- 0289US8316798B2Individually mixed pet feed supply systemITO MASAMI·Filed 2006·Granted Nov 27, 2012·8 cites·6 claims
- 0388US9978540B2Input operation devicePANASONIC IP MAN CO LTD·Filed 2015·Granted May 22, 2018·5 cites·12 claims
- 0487US5748305AMethod and apparatus for particle inspectionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 5, 1998·92 cites·36 claims
- 0586US6068382APanel-form illuminating systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 30, 2000·65 cites·10 claims
- 0682US8882326B2Light guide plate and surface light source devicePANASONIC CORP·Filed 2013·Granted Nov 11, 2014·6 cites·8 claims
- 0780US5894345AOptical method of detecting defect and apparatus used thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 13, 1999·53 cites·7 claims
- 0879US9028125B2Light guide plate and surface light source deviceKIKUCHI TAKANORI·Filed 2012·Granted May 12, 2015·6 cites·5 claims
- 0979US6892009B2Apparatus and method for transmitting and detecting lightMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 10, 2005·23 cites·21 claims
- 1078US5981941AOptical encorder for detection having a moving reference pointMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 9, 1999·43 cites·58 claims
- 1178US5717485AForeign substance inspection apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 10, 1998·54 cites·30 claims
- 1276US6154278AOptical encoder for optically measuring displacement of moving bodyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Nov 28, 2000·34 cites·25 claims
- 1375US7579745B2MotorMITSUMI ELECTRIC CO LTD·Filed 2005·Granted Aug 25, 2009·8 cites·3 claims
- 1474US5986727ABack light illuminator for liquid crystal display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 16, 1999·32 cites·10 claims
- 1572US5661295AOptical encoder with dual diffraction gratingsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Aug 26, 1997·25 cites·11 claims
- 1671US5532823AMethod of measuring optical characteristics of liquid crystal cells, measurement equipment therefor and method for manufacturing liquid crystal devicesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jul 2, 1996·33 cites·11 claims
- 1770US9229151B2Light guidePANASONIC IP MAN CO LTD·Filed 2013·Granted Jan 5, 2016·2 cites·12 claims
- 1870US7417309B2Circuit device and portable device with symmetrical arrangementSANYO ELECTRIC CO·Filed 2005·Granted Aug 26, 2008·5 cites·13 claims
- 1968US5627678AFourier transform optical apparatus and optical informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted May 6, 1997·33 cites·8 claims
- 2067US8887545B2Forging die holderITO MASAMI·Filed 2011·Granted Nov 18, 2014·2 cites·8 claims
- 2165US5526191AFourier transform lens assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jun 11, 1996·23 cites·1 claims
- 2264US5696374AOptical encoder using doubled diffraction angle based on first and second diffraction gratingsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 9, 1997·18 cites·8 claims
- 2361US5699153AMethod and apparatus for optical inspectionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Dec 16, 1997·23 cites·15 claims
- 2461US5153437AOptical encoder having a transparent lens plate with an array of lensesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Oct 6, 1992·18 cites·5 claims
- 2558US5669229ACeiling-mounted type air conditionerMITSUBISHI HEAVY IND LTD·Filed 1996·Granted Sep 23, 1997·26 cites·9 claims
- 2656US5754157AMethod for forming column signals for a liquid crystal display apparatusASAHI GLASS CO LTD·Filed 1996·Granted May 19, 1998·25 cites·13 claims
- 2755US5754341APhase grating, its fabricating method, optical encoder, motor using the optical encoder, and robot using the motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 19, 1998·18 cites·13 claims
- 2855US5579136AOptical information processor employing a phase type spatial light modulatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 26, 1996·19 cites·3 claims
- 2953US5696373AOptical encoder with dual diffraction gratingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 9, 1997·11 cites·8 claims
- 3051US5046754AVehicle height control device adapted also for operation after turn off of ignition switchTOYOTA MOTOR CO LTD·Filed 1990·Granted Sep 10, 1991·22 cites·4 claims
- 3149US7411748B2Optical component unit, laser joining method and apparatus for joining optical componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Aug 12, 2008·0 cites·11 claims
- 3248US10338302B2Light source devicePANASONIC IP MAN CO LTD·Filed 2013·Granted Jul 2, 2019·0 cites·9 claims
- 3348US5781269ADistance measuring method and distance sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 14, 1998·13 cites·13 claims
- 3447US5708488APhase type spatial light modulator having an output substantially uniform in amplitudeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jan 13, 1998·13 cites·1 claims
- 3547US5383056AFourier transform lens assembly and optical information processor employing sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jan 17, 1995·11 cites·3 claims
- 3646US5734472AMethod and appratus for measuring thickness of birefringence layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Mar 31, 1998·11 cites·10 claims
- 3745US5694218AOptical encoder including a plurality of phase adjusting gratingsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 2, 1997·10 cites·9 claims
- 3842US8979351B2Light guide plate, die, and die processing methodFUJITA MASARU·Filed 2012·Granted Mar 17, 2015·0 cites·10 claims
- 3941US8647502B2Sewage treatment apparatus and sewage reuse systemTAKEMURA KIYOKAZU·Filed 2010·Granted Feb 11, 2014·0 cites·8 claims
- 4040US8617388B2Sewage reuse systemTAKEMURA KIYOKAZU·Filed 2010·Granted Dec 31, 2013·0 cites·5 claims
- 4138US5999249APosition detecting element and range sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 7, 1999·8 cites·4 claims
- 4238US4147148AFuel control apparatus for a diesel engineTOYOTA MOTOR CO LTD·Filed 1977·Granted Apr 3, 1979·5 cites·6 claims
- 4336US5720445AApparatus for winding reinforcing fibers around columnMITSUBISHI HEAVY IND LTD·Filed 1996·Granted Feb 24, 1998·10 cites·11 claims
- 4436US5209172AUpper fabric feed device for sewing machine, utilizing parallel motion mechanism for reciprocating feed foot and presser footBROTHER IND LTD·Filed 1992·Granted May 11, 1993·3 cites·14 claims
- 4533US2003095756A1Optical transmitting/receiving module and optical transmitting/receiving device using the sameFiled 2002·Application pending·0 cites
- 4630US4884184AControl apparatus for cascaded converter circuitHITACHI LTD·Filed 1988·Granted Nov 28, 1989·0 cites·14 claims
- 4729US5363455AOptical information processorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Nov 8, 1994·8 cites·4 claims
- 4828US4669562APower take-off apparatus in automotive vehicleTOYOTA MOTOR CO LTD·Filed 1985·Granted Jun 2, 1987·2 cites·5 claims
- 4927US8620598B2Bushing press-fitting inspection device, method, and program, and bushing press-fitting apparatusITO MASAMI·Filed 2011·Granted Dec 31, 2013·0 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Masami Ito 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 →