Masaaki Ishida

Person

Machida, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and image forming method
- Patent number 10,324,397
- Issue date Jun 18, 2019
- Ricoh Company, Ltd.
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 10,298,807
- Issue date May 21, 2019
- Ricoh Company, Limited
- Muneaki Iwata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus and method for driving light source
- Patent number 10,133,971
- Issue date Nov 20, 2018
- Ricoh Company, Ltd.
- Hayato Fujita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Light source drive control device, image forming apparatus, light s...
- Patent number 9,961,227
- Issue date May 1, 2018
- Ricoh Company, Ltd.
- Atsufumi Omori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus
- Patent number 9,760,813
- Issue date Sep 12, 2017
- Ricoh Company, Ltd.
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus to correct a driving signal for driving a l...
- Patent number 9,703,244
- Issue date Jul 11, 2017
- Ricoh Company, Ltd.
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for driving light source
- Patent number 9,659,243
- Issue date May 23, 2017
- Ricoh Company, Ltd.
- Hayato Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus
- Patent number 9,606,471
- Issue date Mar 28, 2017
- Ricoh Company, Ltd.
- Masaaki Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,591,177
- Issue date Mar 7, 2017
- Ricoh Company, Ltd.
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method to form an image b...
- Patent number 9,527,303
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Masaaki Ishida
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 9,521,295
- Issue date Dec 13, 2016
- Ricoh Company, Ltd.
- Hayato Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus which forms image data indicating whether a...
- Patent number 9,466,016
- Issue date Oct 11, 2016
- Ricoh Company, Ltd.
- Muneaki Iwata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus, image forming method, and method of produc...
- Patent number 9,411,256
- Issue date Aug 9, 2016
- Ricoh Company, Ltd.
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source drive circuit, optical scanning apparatus, and image f...
- Patent number 9,405,211
- Issue date Aug 2, 2016
- Ricoh Company, Ltd.
- Hayato Fujita
- G02 - OPTICS
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 9,361,558
- Issue date Jun 7, 2016
- Ricoh Company, Ltd.
- Masaaki Ishida
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus, image forming method, and method of produc...
- Patent number 9,298,122
- Issue date Mar 29, 2016
- Ricoh Company, Limited
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source drive device, optical scanning device and image formin...
- Patent number 9,155,148
- Issue date Oct 6, 2015
- Ricoh Company, Ltd.
- Masaaki Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus
- Patent number 9,111,203
- Issue date Aug 18, 2015
- Ricoh Company, Limited
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source driving device, light scanning device and image formin...
- Patent number 9,035,988
- Issue date May 19, 2015
- Ricoh Company, Ltd.
- Yasuhiro Nihei
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Semiconductor laser control device and image forming device
- Patent number 8,995,486
- Issue date Mar 31, 2015
- Ricoh Company, Ltd.
- Atsufumi Omori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for forming images, and method for producing p...
- Patent number 8,982,422
- Issue date Mar 17, 2015
- Ricoh Company, Limited
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a density sensor for detecting density...
- Patent number 8,983,318
- Issue date Mar 17, 2015
- Ricoh Company, Ltd.
- Atsufumi Omori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source drive circuit, optical scanning apparatus, semiconduct...
- Patent number 8,957,934
- Issue date Feb 17, 2015
- Ricoh Company, Ltd.
- Hayato Fujita
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus and density change suppressing method
- Patent number 8,929,759
- Issue date Jan 6, 2015
- Ricoh Company, Limited
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source driver, light source-driving method, image-forming app...
- Patent number 8,928,715
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Atsufumi Omori
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser driving unit and image forming apparatus
- Patent number 8,896,648
- Issue date Nov 25, 2014
- Ricoh Company, Ltd.
- Atsufumi Omori
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Laser driving device, optical scanning device, image forming appara...
- Patent number 8,811,441
- Issue date Aug 19, 2014
- Ricoh Company, Limited
- Masaaki Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light source driver, light source device, light scanning device and...
- Patent number 8,687,036
- Issue date Apr 1, 2014
- Ricoh Company, Ltd.
- Masaaki Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical scanning device, image forming apparatus, and optical scann...
- Patent number 8,654,168
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Kazuhiro Akatsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming apparatus to detect and correct density variations in...
- Patent number 8,648,892
- Issue date Feb 11, 2014
- Ricoh Company, Limited
- Seizo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20180176414
- Publication date Jun 21, 2018
- Muneaki IWATA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD FOR DRIVING LIGHT SOURCE
- Publication number 20170286814
- Publication date Oct 5, 2017
- Hayato Fujita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20170017177
- Publication date Jan 19, 2017
- Muneaki IWATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20160274521
- Publication date Sep 22, 2016
- Muneaki IWATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD FOR DRIVING LIGHT SOURCE
- Publication number 20160247050
- Publication date Aug 25, 2016
- Hayato Fujita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIGHT SOURCE DRIVE CONTROL DEVICE, IMAGE FORMING APPARATUS, LIGHT S...
- Publication number 20160234399
- Publication date Aug 11, 2016
- Atsufumi OMORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160147171
- Publication date May 26, 2016
- Masaaki ISHIDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160012322
- Publication date Jan 14, 2016
- Muneaki IWATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150350491
- Publication date Dec 3, 2015
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150324671
- Publication date Nov 12, 2015
- Muneaki IWATA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20150251442
- Publication date Sep 10, 2015
- Masaaki ISHIDA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, SEMICONDUCT...
- Publication number 20150180200
- Publication date Jun 25, 2015
- Hayato FUJITA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20150156373
- Publication date Jun 4, 2015
- Hayato FUJITA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND METHOD OF PRODUC...
- Publication number 20150125171
- Publication date May 7, 2015
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND METHOD OF PRODUC...
- Publication number 20140333940
- Publication date Nov 13, 2014
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR FORMING IMAGES, AND METHOD FOR PRODUCING P...
- Publication number 20140333941
- Publication date Nov 13, 2014
- Muneaki Iwata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20140327938
- Publication date Nov 6, 2014
- Masaaki ISHIDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140268186
- Publication date Sep 18, 2014
- MUNEAKI IWATA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIGHT SOURCE DRIVER, LIGHT SOURCE-DRIVING METHOD, IMAGE-FORMING APP...
- Publication number 20140176656
- Publication date Jun 26, 2014
- Atsufumi OMORI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, AND IMAGE F...
- Publication number 20140139605
- Publication date May 22, 2014
- RICOH COMPANY, LTD.
- Hayato Fujita
- G02 - OPTICS
Information Patent Application
LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, SEMICONDUCT...
- Publication number 20140139603
- Publication date May 22, 2014
- Hayato FUJITA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS AND DENSITY CHANGE SUPPRESSING METHOD
- Publication number 20130302052
- Publication date Nov 14, 2013
- Muneaki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130243459
- Publication date Sep 19, 2013
- Atsufumi OMORI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANN...
- Publication number 20130033558
- Publication date Feb 7, 2013
- Kazuhiro AKATSU
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIGHT SOURCE DRIVE DEVICE, OPTICAL SCANNING DEVICE AND IMAGE FORMIN...
- Publication number 20120293783
- Publication date Nov 22, 2012
- Masaaki Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120189328
- Publication date Jul 26, 2012
- Seizo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120099165
- Publication date Apr 26, 2012
- Atsufumi OMORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LASER DRIVING DEVICE, OPTICAL SCANNING DEVICE, AND IMAGE FORMING AP...
- Publication number 20110304683
- Publication date Dec 15, 2011
- Masaaki ISHIDA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LASER DRIVING UNIT AND IMAGE FORMING APPARATUS
- Publication number 20110228037
- Publication date Sep 22, 2011
- RICOH COMPANY, LTD.
- Atsufumi OMORI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LASER DRIVING DEVICE, OPTICAL SCANNING DEVICE, IMAGE FORMING APPARA...
- Publication number 20110199657
- Publication date Aug 18, 2011
- Masaaki Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masaaki Ishida

Person

Patents Grantslast 30 patents

Image forming apparatus and image forming method

Image forming apparatus

Image forming apparatus and method for driving light source

Light source drive control device, image forming apparatus, light s...

Image forming apparatus

Image forming apparatus to correct a driving signal for driving a l...

Image forming apparatus and method for driving light source

Image forming apparatus

Image forming apparatus

Image forming apparatus and image forming method to form an image b...

Image forming apparatus and image forming method

Image forming apparatus which forms image data indicating whether a...

Image forming apparatus, image forming method, and method of produc...

Light source drive circuit, optical scanning apparatus, and image f...

Image forming apparatus and image forming method

Image forming apparatus, image forming method, and method of produc...

Light source drive device, optical scanning device and image formin...

Image forming apparatus

Light source driving device, light scanning device and image formin...

Semiconductor laser control device and image forming device

Method and apparatus for forming images, and method for producing p...

Image forming apparatus with a density sensor for detecting density...

Light source drive circuit, optical scanning apparatus, semiconduct...

Image forming apparatus and density change suppressing method

Light source driver, light source-driving method, image-forming app...

Laser driving unit and image forming apparatus

Laser driving device, optical scanning device, image forming appara...

Light source driver, light source device, light scanning device and...

Optical scanning device, image forming apparatus, and optical scann...

Image forming apparatus to detect and correct density variations in...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND METHOD FOR DRIVING LIGHT SOURCE

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

IMAGE FORMING APPARATUS AND METHOD FOR DRIVING LIGHT SOURCE

LIGHT SOURCE DRIVE CONTROL DEVICE, IMAGE FORMING APPARATUS, LIGHT S...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, SEMICONDUCT...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND METHOD OF PRODUC...

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND METHOD OF PRODUC...

METHOD AND APPARATUS FOR FORMING IMAGES, AND METHOD FOR PRODUCING P...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

IMAGE FORMING APPARATUS

LIGHT SOURCE DRIVER, LIGHT SOURCE-DRIVING METHOD, IMAGE-FORMING APP...

LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, AND IMAGE F...

LIGHT SOURCE DRIVE CIRCUIT, OPTICAL SCANNING APPARATUS, SEMICONDUCT...

IMAGE FORMING APPARATUS AND DENSITY CHANGE SUPPRESSING METHOD

IMAGE FORMING APPARATUS

OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANN...

LIGHT SOURCE DRIVE DEVICE, OPTICAL SCANNING DEVICE AND IMAGE FORMIN...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

LASER DRIVING DEVICE, OPTICAL SCANNING DEVICE, AND IMAGE FORMING AP...

LASER DRIVING UNIT AND IMAGE FORMING APPARATUS

LASER DRIVING DEVICE, OPTICAL SCANNING DEVICE, IMAGE FORMING APPARA...