Inventor · disambiguated record
Masaichiro Tatekawa
Also filed as: SASAKI TOSHIHARU · TATEKAWA MASAICHIRO
37 granted patents·2 pending applications·457 citations·filing 1978–2005
97Inventor score
Top patents by PatentIndex Score
39 records- 0197US6565196B2Ink jet head, method of manufacturing the same and ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 20, 2003·80 cites·52 claims
- 0295US7154452B2Electronic paper, electronic paperfile and electronic penMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 26, 2006·79 cites·28 claims
- 0391US7249324B2Electronic paper fileMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 24, 2007·71 cites·18 claims
- 0487US6906705B2Electronic file with flexible display mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 14, 2005·37 cites·48 claims
- 0582US6848850B2Recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 1, 2005·19 cites·23 claims
- 0680US7196456B2Piezoelectric actuator and method of manufacture therefor, and ink jet head and ink jet type recording deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Mar 27, 2007·5 cites·8 claims
- 0778US6986564B2Ink jet head, method for inspecting actuator, method for manufacturing ink jet head, and ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 17, 2006·16 cites·36 claims
- 0873US6891328B2Light source for image reading apparatus and image reading apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 10, 2005·11 cites·34 claims
- 0970US6929686B2Ink composition for inkjet recordingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 16, 2005·8 cites·10 claims
- 1070US6496680B2Image fixing device and method using ultrasonic vibrationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 17, 2002·11 cites·64 claims
- 1168US6793311B2Ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 21, 2004·12 cites·30 claims
- 1267US6811248B2Ink jet head, method of manufacturing the same and ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 2, 2004·9 cites·50 claims
- 1365US7368007B2Ink-jet recording ink, image forming method, ink-jet recording apparatus and imaged articleRICOH KK·Filed 2004·Granted May 6, 2008·6 cites·7 claims
- 1464US4696562AMultifunctional copying machineMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Sep 29, 1987·26 cites·6 claims
- 1563US7195411B2Recording apparatus with mechanism for ejecting recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 27, 2007·7 cites·12 claims
- 1663US6988794B2Inkjet recording ink, method for producing said ink, and ink cartridge and recording device having said inkMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 24, 2006·5 cites·15 claims
- 1758US7152968B2Image formation methodRICOH KK·Filed 2003·Granted Dec 26, 2006·3 cites·9 claims
- 1857US7140796B2Recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 28, 2006·5 cites·1 claims
- 1957US6933487B2Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning directionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 23, 2005·2 cites·11 claims
- 2057US6921151B2Ink jet head, actuator testing method, method of manufacturing ink jet head, and ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 26, 2005·5 cites·4 claims
- 2155US6942329B2Ink for inkjet recording, and cartridge and recording apparatus including the inkMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 13, 2005·2 cites·7 claims
- 2254US7160934B2Ink for ink-jet recording, and ink cartridge and recording apparatus including the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 9, 2007·2 cites·9 claims
- 2354US6717751B2Image reading apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 6, 2004·1 cites·16 claims
- 2452US7512301B2Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning directionPANASONIC CORP·Filed 2005·Granted Mar 31, 2009·0 cites·4 claims
- 2552US6947697B2Ultrasonic vibration tool, fixing device, and heating deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 20, 2005·6 cites·20 claims
- 2652US6736479B2Ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 18, 2004·5 cites·11 claims
- 2751US4196875AMagnetic tape recording and/or reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Apr 8, 1980·7 cites·12 claims
- 2844US7378458B2Method for preparing ink, ink cartridge and ink-jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 27, 2008·0 cites·10 claims
- 2943US6969138B2Ink jet recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 29, 2005·2 cites·37 claims
- 3043US6299295B1Ink jet printing head having ink chambers arranged in succession by laminationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Oct 9, 2001·8 cites·14 claims
- 3142US2004070633A1Electronic paper file and mark setting systemFiled 2002·Application pending·0 cites
- 3241US7196121B2Inkjet recording ink, solvent for use in said ink and cartridge and recording device having said inkMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 27, 2007·0 cites·5 claims
- 3341US6921157B2Piezoelectric actuator and method of manufacture therefor, and ink jet head and ink jet type recording deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 26, 2005·1 cites·15 claims
- 3440US6955429B2Ink-jet recording head, ink cartridge, and recording apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 18, 2005·0 cites·21 claims
- 3537US2002049261A1Ink for ink-jet recording, and ink cartridge and recording apparatus including the sameFiled 2001·Application pending·0 cites
- 3635US7264340B2Piezoelectric actuator and ink-jet head, and ink-jet recorderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 4, 2007·0 cites·22 claims
- 3735US6783211B2Ink-jet recording headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Aug 31, 2004·3 cites·27 claims
- 3834US5381214AElectrophotographic charging deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 10, 1995·3 cites·8 claims
- 3930US6557980B1Image forming device, and its manufacturing method and apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 6, 2003·0 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →