Hiroyuki Igawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image processing apparatus, image processing method, and computer-r...
- Patent number 10,430,699
- Issue date Oct 1, 2019
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Halftone dot screen generation with conditional arrangement of grow...
- Patent number 9,787,873
- Issue date Oct 10, 2017
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image processing apparatus and image processing method
- Patent number 9,706,080
- Issue date Jul 11, 2017
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus, and method and device for creating dither...
- Patent number 9,503,611
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrophotographic image output device
- Patent number 8,941,901
- Issue date Jan 27, 2015
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing method, image processor, and image forming apparat...
- Patent number 8,879,961
- Issue date Nov 4, 2014
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image processing apparatus, control method, and computer program pr...
- Patent number 8,736,907
- Issue date May 27, 2014
- Ricoh Company, Ltd.
- Hiroyuki Igawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-R...
- Publication number 20180239998
- Publication date Aug 23, 2018
- Hiroyuki IGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING...
- Publication number 20170013171
- Publication date Jan 12, 2017
- RICOH COMPANY, LTD.
- Hiroyuki Igawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
- Publication number 20160155031
- Publication date Jun 2, 2016
- RICOH COMPANY, LTD.
- Hiroyuki Igawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS, AND METHOD AND DEVICE FOR CREATING DITHER...
- Publication number 20160034794
- Publication date Feb 4, 2016
- RICOH COMPANY, LIMITED
- Hiroyuki IGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTROPHOTOGRAPHIC IMAGE OUTPUT DEVICE
- Publication number 20140211266
- Publication date Jul 31, 2014
- Hiroyuki IGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROCESSING METHOD, IMAGE PROCESSOR, AND IMAGE FORMING APPARAT...
- Publication number 20130108326
- Publication date May 2, 2013
- Hiroyuki IGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE PROCESSING APPARATUS, CONTROL METHOD, AND COMPUTER PROGRAM PR...
- Publication number 20120120454
- Publication date May 17, 2012
- Hiroyuki IGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hiroyuki Igawa

Person

Patents Grantslast 30 patents

Image processing apparatus, image processing method, and computer-r...

Halftone dot screen generation with conditional arrangement of grow...

Image processing apparatus and image processing method

Image forming apparatus, and method and device for creating dither...

Electrophotographic image output device

Image processing method, image processor, and image forming apparat...

Image processing apparatus, control method, and computer program pr...

Patents Applicationslast 30 patents

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-R...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING...

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

IMAGE FORMING APPARATUS, AND METHOD AND DEVICE FOR CREATING DITHER...

ELECTROPHOTOGRAPHIC IMAGE OUTPUT DEVICE

IMAGE PROCESSING METHOD, IMAGE PROCESSOR, AND IMAGE FORMING APPARAT...

IMAGE PROCESSING APPARATUS, CONTROL METHOD, AND COMPUTER PROGRAM PR...