Inventor · disambiguated record
Kazumasa Watanabe
Also filed as: OYA TADANORI · WATANABE KAZUMASA
38 granted patents·4 pending applications·423 citations·filing 1975–2019
98Inventor score
Files withKONISHIROKU PHOTO IND19ICHIKAWA CO LTD11MITSUBISHI ELECTRIC CORP3DENSO CORP2KONOSHIROKU PHOTO INDUSTRY CO1
Top patents by PatentIndex Score
42 records- 0191US5039586AElectrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1989·Granted Aug 13, 1991·25 cites·8 claims
- 0289US11047158B2Joining structure of two door members forming door for entrance opening and closing of aircraft lavatory unitYOKOHAMA RUBBER CO LTD·Filed 2019·Granted Jun 29, 2021·8 cites·7 claims
- 0387US5986116AMethod for producing conjugated linoleic acidRINORU OIL MILLS CO LTD·Filed 1997·Granted Nov 16, 1999·38 cites·4 claims
- 0487US5323567APlant cultivating apparatusMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Jun 28, 1994·80 cites·4 claims
- 0582US7128811B2Belt for a papermaking machineICHIKAWA CO LTD·Filed 2003·Granted Oct 31, 2006·16 cites·2 claims
- 0681US6736939B2Shoe press beltICHIKAWA CO LTD·Filed 2002·Granted May 18, 2004·16 cites·16 claims
- 0777US5234785AElectrophotographic photoreceptor and manufacturing method thereofKONISHIROKU PHOTO IND·Filed 1991·Granted Aug 10, 1993·14 cites·7 claims
- 0876US6143452AElectrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1999·Granted Nov 7, 2000·24 cites·41 claims
- 0975US6699368B2Shoe press belt and manufacturing methodICHIKAWA CO LTD·Filed 2001·Granted Mar 2, 2004·10 cites·11 claims
- 1074US5753395AElectrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1996·Granted May 19, 1998·13 cites·7 claims
- 1173US7482901B2Circuit breakerMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Jan 27, 2009·11 cites·10 claims
- 1271US6406825B1Electrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 2000·Granted Jun 18, 2002·12 cites·33 claims
- 1371US5354635AElectrophotographic photoreceptor comprising mixed crystals of titanylphthalocyanine and vanadylphthalocyanineKONISHIROKU PHOTO IND·Filed 1993·Granted Oct 11, 1994·17 cites·10 claims
- 1469US4499181APhotographic recording material with indole redox releaserKONISHIROKU PHOTO IND·Filed 1983·Granted Feb 12, 1985·7 cites·8 claims
- 1569US3985612APaper making system including forming fabrics and porous forming cylindersWATANABE KAZUMASA·Filed 1975·Granted Oct 12, 1976·21 cites·2 claims
- 1666US4647520AElectrophotographic photoreceptor containing an azo compoundKONOSHIROKU PHOTO INDUSTRY CO·Filed 1985·Granted Mar 3, 1987·9 cites·26 claims
- 1765US5350655AElectrophotographic photoreceptor with titanyl phthaloycyanineKONISHIROKU PHOTO IND·Filed 1993·Granted Sep 27, 1994·15 cites·10 claims
- 1862US6716318B2Papermaking press feltICHIKAWA CO LTD·Filed 2002·Granted Apr 6, 2004·8 cites·8 claims
- 1960US6858291B2Elastic belt for papermaking calenderICHIKAWA CO LTD·Filed 2002·Granted Feb 22, 2005·3 cites·9 claims
- 2059US6514386B2Papermaking feltICHIKAWA CO LTD·Filed 2001·Granted Feb 4, 2003·14 cites·6 claims
- 2159US4247629ALight-sensitive photographic element comprising a cyan image dye-providing compoundKONISHIROKU PHOTO IND·Filed 1979·Granted Jan 27, 1981·5 cites·17 claims
- 2258US7135095B2Papermaking press felt and press apparatus for a papermaking machineMITSUBISHI HEAVY IND LTD·Filed 2003·Granted Nov 14, 2006·3 cites·12 claims
- 2354US6936139B2Shoe press apparatus of a papermaking machineICHIKAWA CO LTD·Filed 2003·Granted Aug 30, 2005·2 cites·8 claims
- 2453US6780287B2Belt for calenderingICHIKAWA CO LTD·Filed 2002·Granted Aug 24, 2004·5 cites·11 claims
- 2553US2007122589A1Workpiece fixing jig and working method making use of the jigDENSO CORP·Filed 2006·Application pending·0 cites
- 2651US4225708A2-Sulfamoyl-5-sulfamido-1-naphtholsKONISHIROKU PHOTO IND·Filed 1979·Granted Sep 30, 1980·4 cites·12 claims
- 2750US7311806B2Papermaking needle feltICHIKAWA CO LTD·Filed 2004·Granted Dec 25, 2007·1 cites·8 claims
- 2850US6268097B1Electrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1999·Granted Jul 31, 2001·8 cites·13 claims
- 2948US7420446B2Circuit breakerMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Sep 2, 2008·4 cites·9 claims
- 3046US2005197478A1Papermaking machine belt and method for producing the sameICHIKAWA CO LTD·Filed 2005·Application pending·0 cites
- 3146US2011123671A1Additive for livestock feed and feed composition for livestockMIURA MAKOTO·Filed 2011·Application pending·0 cites
- 3245US5215840AElectrophotographic photoreceptor and manufacturing method thereofKONISHIROKU PHOTO IND·Filed 1991·Granted Jun 1, 1993·6 cites·20 claims
- 3345US2015112576A1Pump control apparatus for fuel supply system of fuel-injection engineDENSO CORP·Filed 2014·Application pending·0 cites
- 3443US4256831ALight-sensitive photographic element comprising a magenta image dye-providing compoundKONISHIROKU PHOTO IND·Filed 1979·Granted Mar 17, 1981·2 cites·9 claims
- 3541US5853934AElectrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1997·Granted Dec 29, 1998·5 cites·14 claims
- 3641US4099972ADye image forming process using shifted azo dye developerMITSUBISHI CHEM IND·Filed 1976·Granted Jul 11, 1978·2 cites·5 claims
- 3740US4520095APhotographic light-sensitive elementKONISHIROKU PHOTO IND·Filed 1983·Granted May 28, 1985·3 cites·41 claims
- 3837US5565288AElectrophotographic photoreceptorKONISHIROKU PHOTO IND·Filed 1995·Granted Oct 15, 1996·5 cites·6 claims
- 3935US4209328ADye image forming processKONISHIROKU PHOTO IND·Filed 1977·Granted Jun 24, 1980·1 cites·20 claims
- 4034US5338637AElectrophotographic photoreceptor with perylene and styryl compoundsKONISHIROKU PHOTO IND·Filed 1992·Granted Aug 16, 1994·2 cites·6 claims
- 4133US7135094B2Papermaking press feltICHIKAWA CO LTD·Filed 2003·Granted Nov 14, 2006·4 cites·3 claims
- 4230US4692393APhotoreceptor having a photosensitive layer containing an azo compoundKONISHIROKU PHOTO IND·Filed 1985·Granted Sep 8, 1987·0 cites·48 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →