Inventor · disambiguated record
Hidekazu Sekizawa
Also filed as: SEKIZAWA HIDEKAZU
39 granted patents·1 pending application·1,942 citations·filing 1975–2009
98Inventor score
Top patents by PatentIndex Score
40 records- 0198US5652626AImage processing apparatus using pattern generating circuits to process a color imageTOSHIBA KK·Filed 1994·Granted Jul 29, 1997·448 cites·7 claims
- 0297US6095566AImage recorded product, image recording system, image reproducing system, and recording medium for use to superimpose-record/reproduce additional informationTOSHIBA KK·Filed 1997·Granted Aug 1, 2000·165 cites·4 claims
- 0397US4806780AImage correction method and apparatus with partial detector array samplingTOSHIBA KK·Filed 1987·Granted Feb 21, 1989·203 cites·7 claims
- 0493US4330775AApparatus for inspecting defects in a periodic patternTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted May 18, 1982·83 cites·11 claims
- 0591US7777918B2Image forming apparatus and method of controlling the apparatusTOSHIBA KK·Filed 2007·Granted Aug 17, 2010·14 cites·13 claims
- 0691US4926251AColor image processing apparatus with image correctorTOSHIBA KK·Filed 1988·Granted May 15, 1990·85 cites·16 claims
- 0789US5028991AImage signal processing apparatus for use in color image reproductionTOSHIBA KK·Filed 1989·Granted Jul 2, 1991·71 cites·15 claims
- 0888US5278641ABrightness referenced color image correcting apparatusTOSHIBA KK·Filed 1991·Granted Jan 11, 1994·89 cites·7 claims
- 0988US4698669AColor picture reader and method for operating the sameTOSHIBA KK·Filed 1985·Granted Oct 6, 1987·32 cites·23 claims
- 1088US3972616AApparatus for detecting the defects of the mask pattern using spatial filteringTOKYO SHIBAURA ELECTRIC CO·Filed 1975·Granted Aug 3, 1976·38 cites·10 claims
- 1186US4663662APicture signal processing system featuring simple or dithering binarization processing selected in response to local variations in picture densityTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted May 5, 1987·48 cites·15 claims
- 1284US5315413AColor image correction device for correcting phase and resolution characteristics of a copy image using different color signal componentsTOSHIBA KK·Filed 1992·Granted May 24, 1994·64 cites·11 claims
- 1382US7652800B2Apparatus and method for image formingTOSHIBA KK·Filed 2005·Granted Jan 26, 2010·6 cites·8 claims
- 1482US4153336AOptimized spatial filter for defect detectionTOKYO SHIBAURA ELECTRIC CO·Filed 1976·Granted May 8, 1979·26 cites·10 claims
- 1580US7616359B2Image reading apparatus, image forming apparatus, and image forming methodTOSHIBA KK·Filed 2006·Granted Nov 10, 2009·6 cites·24 claims
- 1680US5497180AImage recording apparatus for representing a halftone by use of a plurality of recorded dotsTOSHIBA KK·Filed 1993·Granted Mar 5, 1996·50 cites·18 claims
- 1780US4661843AColor image copying apparatusTOSHIBA KK·Filed 1985·Granted Apr 28, 1987·36 cites·15 claims
- 1879US7995249B2Apparatus and method for image formingTOSHIBA KK·Filed 2009·Granted Aug 9, 2011·4 cites·8 claims
- 1979US5136401AImage layout apparatus for performing pattern modification such as coloring of an original imageTOSHIBA KK·Filed 1990·Granted Aug 4, 1992·48 cites·12 claims
- 2078US4745467AColor image-processing apparatusTOSHIBA KK·Filed 1986·Granted May 17, 1988·33 cites·10 claims
- 2178US4675727AOptical color document reading apparatus wherein an image is blurred on a color image sensor to minimize color moire phenomenon effectsTOSHIBA KK·Filed 1985·Granted Jun 23, 1987·39 cites·10 claims
- 2277US6134022AColor image printing system capable of correcting density deviation on image and system for detecting color deviation on imageTOSHIBA KK·Filed 1996·Granted Oct 17, 2000·57 cites·8 claims
- 2377US4360269AApparatus for inspecting defects in a periodic patternTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Nov 23, 1982·32 cites·9 claims
- 2476US5072291AImage information signal processing apparatus for improving reproduced image quality by discriminating the type of input image and selecting a particular processing in accordance therewithTOSHIBA KK·Filed 1991·Granted Dec 10, 1991·41 cites·10 claims
- 2573US4299443AApparatus for detecting the defects of a pattern with directional characteristics using a filter having arm sections of curved shapeTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Nov 10, 1981·19 cites·16 claims
- 2672US7554695B2Apparatus and method for image formingTOSHIBA KK·Filed 2005·Granted Jun 30, 2009·3 cites·16 claims
- 2767US6987587B2Multiple recognition image processing apparatusTOSHIBA TEC KK·Filed 2001·Granted Jan 17, 2006·7 cites·16 claims
- 2867US5200840AImage processing apparatusTOSHIBA KK·Filed 1990·Granted Apr 6, 1993·36 cites·11 claims
- 2967US4672433AColor signal processing apparatus with a signal interpolation function for use in a color copierTOSHIBA KK·Filed 1985·Granted Jun 9, 1987·21 cites·11 claims
- 3067US4510866AApparatus for measuring the area of image portion of image-bearing memberTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Apr 16, 1985·14 cites·5 claims
- 3165US5708514AError diffusion method in a multi-level image recording apparatus utilizing adjacent-pixel characteristicsTOSHIBA KK·Filed 1995·Granted Jan 13, 1998·31 cites·16 claims
- 3260US4803496AMethod for recording a color imageTOSHIBA KK·Filed 1986·Granted Feb 7, 1989·15 cites·5 claims
- 3358US5767886AInk amount indicative signal correcting apparatus for reducing dispersion degree of overlapping of color inks for each pixel in a color image printer systemTOSHIBA KK·Filed 1996·Granted Jun 16, 1998·22 cites·20 claims
- 3452US4408883AApparatus for inspecting average size of fundamental patternsTOKYO SHIBAURA ELECTRIC CO·Filed 1981·Granted Oct 11, 1983·11 cites·40 claims
- 3551US2009323095A1Image forming apparatus and methodTOSHIBA KK·Filed 2008·Application pending·0 cites
- 3647US4916549AImage sensing apparatus with shading compensationTOSHIBA KK·Filed 1988·Granted Apr 10, 1990·8 cites·9 claims
- 3744US6154569ASystem and method for coding and/or decoding image including bit-map of different levelsTOSHIBA KK·Filed 1996·Granted Nov 28, 2000·14 cites·3 claims
- 3844US5583646AApparatus for distinguishing image portions through image expansionTOSHIBA KK·Filed 1995·Granted Dec 10, 1996·10 cites·9 claims
- 3941US6377361B1Image processing device and image forming apparatusTOSHIBA KK·Filed 1999·Granted Apr 23, 2002·9 cites·4 claims
- 4035US4560280AApparatus for optically measuring the distance between two grating-like structures and the size of periodic pattern elements forming one of the grating-like structuresTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Dec 24, 1985·4 cites·10 claims
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