P

Inventor

KOJIMA AKIO

JP89 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

18 patents
US7386185B2Jun 10, 2008

Image processing device and image processing method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations96
US6075902AJun 13, 2000

Area recognizing device for image signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations96
US5949921ASep 7, 1999

Image processing apparatus for reading an image by hand scanning

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD61 citations96
US5930411AJul 27, 1999

Image processing apparatus for adjusting scanning position

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations93
US5930007AJul 27, 1999

Area recognizing device for image signals

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations93
US5760922AJun 2, 1998

Area recognizing device and gradation level converting device employing area recognizing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations93
US5570432AOct 29, 1996

Image controller

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations93
US5454052ASep 26, 1995

Method and apparatus for converting halftone images

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations93
US5402252AMar 28, 1995

Image reader and image reproducing system both having a line sensor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations93
US5177603AJan 5, 1993

Image copying apparatus having means for deleting color portions of an original image

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations93
US7292733B2Nov 6, 2007

Image processing apparatus and image processing method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations92
US6807388B1Oct 19, 2004

Data monitoring method, data monitoring device, copying device, and storage medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations92
US6583895B1Jun 24, 2003

Image processing method and image processing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations92
US5502575AMar 26, 1996

Imaging apparatus having a counterfeiting prevention function

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations91
US7023577B2Apr 4, 2006

Image processing apparatus, image processing method and recording medium with color image compacting

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US6961462B2Nov 1, 2005

Image processing method and image processor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US6873437B1Mar 29, 2005

Image processing method and image processing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US6345116B1Feb 5, 2002

Image processing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations81

RICOH KK

17 patents
US6231652B1May 15, 2001

Aqueous ink compositions and ink-jet printing method using the same

RICOH KK89 citations97
US5993524ANov 30, 1999

Image recording method, image recording apparatus and image recording acceleration liquid

RICOH KK107 citations97
US5972082AOct 26, 1999

Aqueous ink composition and ink-jet printing method using the same

RICOH KK93 citations97
US5882390AMar 16, 1999

Recording ink composition and recording method using the same

RICOH KK108 citations97
US5879439AMar 9, 1999

Recording ink composition and recording method using the same

RICOH KK122 citations97
US5492784AFeb 20, 1996

Positively-chargeable single-layered type electrophotographic photoconductor

RICOH KK106 citations97
US6261349B1Jul 17, 2001

Image recording method image recording apparatus and image recording acceleration liquid

RICOH KK64 citations96
US6120589ASep 19, 2000

Set of color ink compositions for ink-jet printing and method of forming color images using the color ink set

RICOH KK74 citations96
US4672149AJun 9, 1987

Photoelectric transducer element

RICOH KK63 citations96
US7059512B2Jun 13, 2006

Solder alloy material layer composition, electroconductive and adhesive composition, flux material layer composition, solder ball transferring sheet, bump and bump forming process, and semiconductor device

RICOH KK31 citations93
US4992109AFeb 12, 1991

Photoelectric conversion element

RICOH KK28 citations93
US5700614ADec 23, 1997

cyclopentadiene derivative compounds and electrophotographic photoconductor comprising one cyclopentadiene derivative compound

RICOH KK21 citations92
US5486438AJan 23, 1996

Electrophotographic photoconductor

RICOH KK25 citations92
US5350653ASep 27, 1994

Electrophotographic photoconductor

RICOH KK28 citations92
US4874481AOct 17, 1989

N,N'-diphenylbenzidine polymer and method of producing the same

RICOH KK22 citations82
US4148637AApr 10, 1979

Silane coupling agent in protective layer of photoconductive element

RICOH KK30 citations81
US5387487AFeb 7, 1995

Electrophotographic photoconductor

RICOH KK19 citations80

PANASONIC CORP

6 patents

HITACHI LTD

3 patents

ADVANTEST CORP

1 patent

YAMASHITA HARUO

1 patent

DENSO CORP

1 patent

TELETECH CO LTD

1 patent

RICOH CO LTD

1 patent

DAICEL CHEM

1 patent

Showing the top 50 of 89 patents by PatentIndex Score.