Inventor · disambiguated record
Naoto Kawamura
Also filed as: KAWAMURA NAOTO · KAWAMURA NAOTO A · MATSUMOTO KAZUYA · TATEOKA MASAMICHI
122 granted patents·7 pending applications·3,667 citations·filing 1975–2019
99Inventor score
Files withCANON KK64HEWLETT PACKARD DEVELOPMENT CO33HEWLETT PACKARD CO25KAWAMURA NAOTO5KAWAMURA NAOTO A1
Top patents by PatentIndex Score
129 records- 0198US6137443ASingle-side fabrication process for forming inkjet monolithic printing element array on a substrateHEWLETT PACKARD CO·Filed 1999·Granted Oct 24, 2000·186 cites·6 claims
- 0298US6062681ABubble valve and bubble valve-based pressure regulatorHEWLETT PACKARD CO·Filed 1998·Granted May 16, 2000·210 cites·28 claims
- 0396US6162589ADirect imaging polymer fluid jet orificeHEWLETT PACKARD CO·Filed 1998·Granted Dec 19, 2000·135 cites·17 claims
- 0493US6126276AFluid jet printhead with integrated heat-sinkHEWLETT PACKARD CO·Filed 1998·Granted Oct 3, 2000·89 cites·44 claims
- 0592US6719398B1Inkjet printing with air movement systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Apr 13, 2004·41 cites·18 claims
- 0692US4752822AColor halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memoryCANON KK·Filed 1987·Granted Jun 21, 1988·88 cites·19 claims
- 0791US6997538B1Inkjet printing with air current disruptionHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Feb 14, 2006·36 cites·26 claims
- 0891US6309054B1Pillars in a printheadHEWLETT PACKARD CO·Filed 1998·Granted Oct 30, 2001·49 cites·10 claims
- 0990US6582064B2Fluid ejection device having an integrated filter and method of manufactureHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Jun 24, 2003·38 cites·45 claims
- 1090US5231677AImage processing method and apparatusCANON KK·Filed 1991·Granted Jul 27, 1993·110 cites·39 claims
- 1190US5162923AMethod and apparatus for encoding frequency components of image informationCANON KK·Filed 1989·Granted Nov 10, 1992·64 cites·95 claims
- 1290US4805013AImage data conversion systemCANON KK·Filed 1988·Granted Feb 14, 1989·66 cites·15 claims
- 1390US4553173AImage processing apparatusCANON KK·Filed 1982·Granted Nov 12, 1985·54 cites·18 claims
- 1490US4507685AImage recording deviceCANON KK·Filed 1982·Granted Mar 26, 1985·57 cites·12 claims
- 1590US4491875AApparatus and method for tonal image processingCANON KK·Filed 1984·Granted Jan 1, 1985·55 cites·18 claims
- 1689US6660175B2Method of forming pillars in a fully integrated thermal inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Dec 9, 2003·24 cites·12 claims
- 1789US6513896B1Methods of fabricating fit firing chambers of different drop weights on a single printheadHEWLETT PACKARD CO·Filed 2000·Granted Feb 4, 2003·31 cites·14 claims
- 1889US4253735AImage forming optical system for semiconductor laserCANON KK·Filed 1979·Granted Mar 3, 1981·58 cites·4 claims
- 1988US6325354B1Magnetically-actuated fluid control valveHEWLETT PACKARD CO·Filed 1999·Granted Dec 4, 2001·50 cites·17 claims
- 2087US6447102B1Direct imaging polymer fluid jet orificeHEWLETT PACKARD CO·Filed 2000·Granted Sep 10, 2002·28 cites·8 claims
- 2187US6065823AHeat spreader for ink-jet printheadHEWLETT PACKARD CO·Filed 1999·Granted May 23, 2000·55 cites·29 claims
- 2287US6019907AForming refill for monolithic inkjet printheadHEWLETT PACKARD CO·Filed 1997·Granted Feb 1, 2000·51 cites·7 claims
- 2387US4926268AImage processing apparatus which converts m-bit image data to n-bit (n>m) image dataCANON KK·Filed 1988·Granted May 15, 1990·56 cites·27 claims
- 2487US4674861AImage processing apparatusCANON KK·Filed 1983·Granted Jun 23, 1987·42 cites·18 claims
- 2587US4595956AImage processing apparatusCANON KK·Filed 1984·Granted Jun 17, 1986·42 cites·21 claims
- 2686US6305790B1Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzleHEWLETT PACKARD CO·Filed 1999·Granted Oct 23, 2001·53 cites·26 claims
- 2786US4918541AImage processing method and apparatusCANON KK·Filed 1987·Granted Apr 17, 1990·50 cites·34 claims
- 2886US4870483AColor image sensor including a plurality of photocells and a plurality of colored filters provided on the plurality of photocellsCANON KK·Filed 1989·Granted Sep 26, 1989·50 cites·10 claims
- 2985US6454955B1Electrical interconnect for an inkjet dieHEWLETT PACKARD CO·Filed 2000·Granted Sep 24, 2002·36 cites·11 claims
- 3085US4307408ARecording apparatus using coherent lightCANON KK·Filed 1979·Granted Dec 22, 1981·32 cites·14 claims
- 3184US6718632B2Method of making a fluid-jet ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Apr 13, 2004·21 cites·7 claims
- 3284US5029227AImage processing apparatusCANON KK·Filed 1989·Granted Jul 2, 1991·37 cites·6 claims
- 3384US4864326ADual beam recorderCANON KK·Filed 1988·Granted Sep 5, 1989·45 cites·15 claims
- 3483US4903123AImage processing apparatus using inclined line screens to reduce MoireCANON KK·Filed 1988·Granted Feb 20, 1990·43 cites·9 claims
- 3583US4414581AImage signal processing method and apparatus thereforCANON KK·Filed 1981·Granted Nov 8, 1983·32 cites·13 claims
- 3682US6310639B1Printer printheadHEWLETT PACKARD CO·Filed 1999·Granted Oct 30, 2001·37 cites·22 claims
- 3782US6126273AInkjet printer printhead which eliminates unpredictable ink nucleation variationsHEWLETT PACKARD CO·Filed 1998·Granted Oct 3, 2000·40 cites·7 claims
- 3882US4268871AScanning optical system for formation of a half tone imageCANON KK·Filed 1979·Granted May 19, 1981·27 cites·33 claims
- 3981US6962406B2Fluid ejection device and method of manufactureHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Nov 8, 2005·16 cites·21 claims
- 4081US6905619B2Method of forming pillars in a fully integrated thermal inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Jun 14, 2005·13 cites·8 claims
- 4181US6543884B1Fully integrated thermal inkjet printhead having etched back PSG layerHEWLETT PACKARD CO·Filed 1999·Granted Apr 8, 2003·37 cites·21 claims
- 4281US4660077AColor image forming apparatusCANON KK·Filed 1986·Granted Apr 21, 1987·39 cites·5 claims
- 4381US4591903ARecording apparatusCANON KK·Filed 1982·Granted May 27, 1986·29 cites·21 claims
- 4480US5692210AImage processing apparatus having parallel processors for communicating and performing positional control over plural areas of image data in accordance with designated position instructionCANON KK·Filed 1996·Granted Nov 25, 1997·61 cites·6 claims
- 4580US5060280AMasking control for image processing systemsCANON KK·Filed 1990·Granted Oct 22, 1991·55 cites·6 claims
- 4680US4180307ATwo-dimensional scanning apparatus with constant speed scanCANON KK·Filed 1978·Granted Dec 25, 1979·25 cites·4 claims
- 4779US8149463B2Information processing apparatus, image processing apparatus and method thereof, which create and use a halftone screenKAWAMURA NAOTO·Filed 2008·Granted Apr 3, 2012·5 cites·14 claims
- 4879US6641744B1Method of forming pillars in a fully integrated thermal inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Nov 4, 2003·12 cites·9 claims
- 4979US4783837AImage processing apparatusCANON KK·Filed 1986·Granted Nov 8, 1988·29 cites·26 claims
- 5078US8169664B2Image processing apparatus and method for quantizing pixel of interest by error diffusion methodKAWAMURA NAOTO·Filed 2009·Granted May 1, 2012·4 cites·9 claims
Showing the top 50 of 129 patent records by PatentIndex Score.
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