Inventor · disambiguated record
Masatoshi Fujiwara
Also filed as: FUJIWARA MASATOSHI
42 granted patents·1,486 citations·filing 1983–2006
99Inventor score
Files withUNI CHARM CORP25MITSUBISHI ELECTRIC CORP8YAMATAKE HONEYWELL CO LTD4UNICHARM CORP2MISUBISHI DENKI KABUSHIKI KAIS1
Top patents by PatentIndex Score
42 records- 0199US6813801B2Cleaning articleUNI CHARM CORP·Filed 2001·Granted Nov 9, 2004·198 cites·12 claims
- 0297US7243391B2Cleaning articleUNI CHARM CORP·Filed 2005·Granted Jul 17, 2007·23 cites·5 claims
- 0397US7237296B2Cleaning articleUNI CHARM CORP·Filed 2005·Granted Jul 3, 2007·26 cites·3 claims
- 0497US7228587B2Cleaning articleUNICHARM CORP·Filed 2005·Granted Jun 12, 2007·28 cites·9 claims
- 0596US7237297B2Cleaning articleUNI CHARM CORP·Filed 2005·Granted Jul 3, 2007·19 cites·15 claims
- 0696US6241835B1Cleaning product and production process thereforUNI CHARM CORP·Filed 2000·Granted Jun 5, 2001·93 cites·6 claims
- 0795US7334287B2Cleaning articleUNI CHARM CORP·Filed 2005·Granted Feb 26, 2008·31 cites·12 claims
- 0895US7302730B2Cleaning articleUNI CHARM CORP·Filed 2004·Granted Dec 4, 2007·33 cites·15 claims
- 0994US7699551B2Cleaning device with squirterUNI CHARM CORP·Filed 2005·Granted Apr 20, 2010·44 cites·12 claims
- 1094US6245413B1Cleaning sheetUNI CHARM CORP·Filed 1999·Granted Jun 12, 2001·127 cites·11 claims
- 1194US6143393ACleaning product and production process thereforUNI CHARM CORP·Filed 1998·Granted Nov 7, 2000·97 cites·27 claims
- 1293US7779502B2Cleaning itemUNI CHARM CORP·Filed 2005·Granted Aug 24, 2010·68 cites·20 claims
- 1393US7708485B2Cleaning implementUNI CHARM CORP·Filed 2006·Granted May 4, 2010·43 cites·16 claims
- 1493US7219386B2Holding device and cleaning tool with the holding deviceUNI CHARM CORP·Filed 2004·Granted May 22, 2007·57 cites·17 claims
- 1592US7722273B2Cleaning implementUNI CHARM CORP·Filed 2006·Granted May 25, 2010·38 cites·12 claims
- 1692US7234194B2Cleaning articleUNI CHARM CORP·Filed 2005·Granted Jun 26, 2007·8 cites·8 claims
- 1792US4617952ASwitching valve and an electro-pneumatic pressure converter utilizing the sameYAMATAKE HONEYWELL CO LIMITED·Filed 1985·Granted Oct 21, 1986·87 cites·5 claims
- 1891US7293317B2Holding device and cleaning tool with the holding deviceUNI CHARM CORP·Filed 2004·Granted Nov 13, 2007·64 cites·5 claims
- 1990US7302729B2Cleaning articleUNI CHARM CORP·Filed 2004·Granted Dec 4, 2007·28 cites·32 claims
- 2089US7234193B2Cleaning articleUNI CHARM CORP·Filed 2004·Granted Jun 26, 2007·26 cites·16 claims
- 2189US6984615B2Cleaning articleUNI CHARM CORP·Filed 2001·Granted Jan 10, 2006·42 cites·23 claims
- 2286US7231685B2Cleaning articleUNICHARM CORP·Filed 2004·Granted Jun 19, 2007·21 cites·4 claims
- 2384US5031418ACooling packUNI CHARM CORP·Filed 1989·Granted Jul 16, 1991·58 cites·4 claims
- 2483US7896398B2Pipe handle and cleaning device using the sameUNI CHARM CORP·Filed 2005·Granted Mar 1, 2011·14 cites·2 claims
- 2581US7465115B2Cleaning device with squirterUNI CHARM CORP·Filed 2005·Granted Dec 16, 2008·12 cites·12 claims
- 2680US7745354B2Cleaning toolUNI CHARM CORP·Filed 2005·Granted Jun 29, 2010·10 cites·28 claims
- 2774US7708484B2Cleaning implementUNI CHARM CORP·Filed 2006·Granted May 4, 2010·6 cites·14 claims
- 2871US4712173AMulticontrol process control systemYAMATAKE HONEYWELL CO LTD·Filed 1985·Granted Dec 8, 1987·27 cites·20 claims
- 2969US5024726AMethod for producing a λ/4 shift type diffraction gratingMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jun 18, 1991·28 cites·5 claims
- 3068US7640618B2Cleaning articleUNI CHARM CORP·Filed 2004·Granted Jan 5, 2010·2 cites·29 claims
- 3168US4782035AMethod of forming a waveguide for a DFB laser using photo-assisted epitaxyMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Nov 1, 1988·16 cites·1 claims
- 3263US4649359AExplosion-proof electro-displacement converter deviceYAMATAKE HONEYWELL CO LTD·Filed 1985·Granted Mar 10, 1987·18 cites·12 claims
- 3357US6316280B1Method of manufacturing semiconductor devices separated from a waferMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Nov 13, 2001·22 cites·6 claims
- 3457US5093835ASemiconductor laser deviceMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Mar 3, 1992·16 cites·4 claims
- 3550US5143864AMethod of producing a semiconductor laserMISUBISHI DENKI KABUSHIKI KAIS·Filed 1991·Granted Sep 1, 1992·11 cites·4 claims
- 3648US5238785AMethod of manufacturing a diffraction grating for a semiconductor laserMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Aug 24, 1993·16 cites·12 claims
- 3745US4894834ASemiconductor laser and method for production thereofMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jan 16, 1990·8 cites·10 claims
- 3845US4586388AThree force balanced mechanismTAMURA ELECTRIC WORKS LTD·Filed 1983·Granted May 6, 1986·6 cites·10 claims
- 3937US5386433ASemiconductor laser including periodic structures with different periods for producing a single wavelength of lightMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Jan 31, 1995·8 cites·2 claims
- 4035US5236811AMethod of producing a λ/4-shifted diffraction gratingMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Aug 17, 1993·3 cites·2 claims
- 4132US4675567AElectro-pneumatic pressure converterYAMATAKE HONEYWELL CO LTD·Filed 1986·Granted Jun 23, 1987·3 cites·6 claims
- 4227US4502333AThree force balanced mechanismYAMATAKE HONEYWELL CO LTD·Filed 1983·Granted Mar 5, 1985·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →