Inventor

Masahiko Matsunawa

Inventor

Hachioji, JP

Overview

1984–1996

Patent span

Electricity

Primary field (CPC H)

Patents· 48 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary

H04NPictorial communication, e.g. television69%

G03GElectrography16%

G06TImage data processing or generation, in general7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

5,486,898'Color image forming apparatus with photoreceptor protector'1996 5,357,354'Color image processing apparatus capable of discriminating between a monochromatic document and a color document'1994 5,259,041'Image processing method and apparatus'1993 5,216,498'Image processing apparatus capable of detecting marked region'1993 5,208,663'Color image processing apparatus provided with an image discrimination means'1993 5,119,184'Color image processing apparatus with digital color signal compression means'1992 5,053,867'Digital color image processing apparatus'1991 5,029,017'Image processing apparatus capable of enlarging/reducing apparatus'1991 5,016,096'Apparatus for color processing specifically inside or outside a detected region'1991 5,001,576'Image processor with improved discrimination between character image and tonal image'1991 4,980,760'Image processing apparatus'1990 4,980,758'Image processing technique for processing digital color image information'1990 4,953,229'Image processing apparatus'1990 4,937,662'Color image processing device having ability to process and record an outside or inside region enclosed with a color marker'1990 4,920,571'Image processing system with capability of enlarging and reducing operations'1990 4,903,142'Apparatus for processing halftone image'1990 4,879,595'Technique for reproducing an image read from a color original'1989 4,864,357'Color image processing apparatus'1989 4,841,376'Shading correcting method enabling prevention of effect of noise and apparatus therefor'1989 4,841,377'Continuous image estimation method'1989 4,841,361'Color image processing apparatus'1989 4,835,600'Solid state image reading device with sensors adhered to plate which is adhered to lens holding member'1989 4,833,531'Technique for interpolating a color image for image enlargement or reduction based on look-up tables stored in memory'1989 4,825,246'Image processing method and image forming apparatus'1989 4,814,895'Image reading device'1989 4,803,558'Halftone image estimation methods for dither images'1989 4,783,838'Image processing method and apparatus therefor'1988 4,774,591'Image reader'1988 4,768,082'Methods of compressing and reproducing color image data'1988 4,758,897'Method and apparatus for estimating halftone image from binary image'1988 4,741,046'Method of discriminating pictures'1988 4,733,306'Methods of discriminating and copying an image'1988 4,717,964'Image processing apparatus'1988 4,710,822'Image processing method'1987 4,578,712'Picture image discriminating apparatus'1986 4,562,447'Ion modulating electrode'1985 4,556,916'Picture image discriminating apparatus'1985 4,524,388'Shading correction device'1985 4,495,508'Electrostatic reproducing apparatus'1985 4,495,522'Recording apparatus and method of picture image'1985 4,488,160'Electrostatic apparatus'1984 4,472,724'Electrostatic image reproducing apparatus'1984 4,467,333'Copying apparatus'1984 4,435,066'Ion modulating electrode with improved transmission factor'1984 4,435,723'Recording apparatus with editing capability'1984 4,430,661'Method and apparatus for image reproduction'1984 4,426,654'Ion modulating electrode'1984 4,425,035'Image reproducing apparatus'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1996Patents assigned to KONISHIROKU PHOTO IND (48)· patent assignee history

1984–1996Based in Hachioji, JP· patent location history

1985–1993Based in Tokyo, JP· patent location history

1987–1989Based in Hino, JP· patent location history

1989–1991Based in Fussa, JP· patent location history

1992–1994Based in Ome, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KONISHIROKU PHOTO IND	48	1984–1996

Locations

Location	Patents	Span
Hachioji, JP	30	1984–1996
Hino, JP	6	1987–1989
Tokyo, JP	5	1985–1993
Fussa, JP	4	1989–1991
Ome, JP	3	1992–1994