Akira Nagumo

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light-emission drive circuit and image forming apparatus
- Patent number 9,826,588
- Issue date Nov 21, 2017
- Oki Data Corporation
- Akira Nagumo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Driving circuit and apparatus, and image forming apparatus
- Patent number 9,090,094
- Issue date Jul 28, 2015
- Oki Data Corporation
- Akira Nagumo
- G05 - CONTROLLING REGULATING
Information Patent Grant
Driver circuit, driver apparatus, and image forming apparatus
- Patent number 9,048,841
- Issue date Jun 2, 2015
- Oki Data Corporation
- Akira Nagumo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Light-emitting element array, driving device, and image forming app...
- Patent number 8,884,555
- Issue date Nov 11, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive circuit, light print head, and image forming apparatus
- Patent number 8,866,866
- Issue date Oct 21, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive device, print head and image forming apparatus
- Patent number 8,848,012
- Issue date Sep 30, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driving device, print head and image forming device
- Patent number 8,835,974
- Issue date Sep 16, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive device, print head and image forming apparatus
- Patent number 8,836,743
- Issue date Sep 16, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driver circuit for driving a row of switch elements such as light e...
- Patent number 8,742,824
- Issue date Jun 3, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive device, LED array, LED head, and image forming apparatus prov...
- Patent number 8,723,903
- Issue date May 13, 2014
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Semiconductor composite device, method of manufacturing the same, o...
- Patent number 8,704,862
- Issue date Apr 22, 2014
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driver apparatus, print head and image forming apparatus
- Patent number 8,698,864
- Issue date Apr 15, 2014
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driver device, print head, and image formation apparatus
- Patent number 8,614,728
- Issue date Dec 24, 2013
- Oki Data Corporation
- Akira Nagumo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Driver apparatus, print head, and image forming apparatus
- Patent number 8,587,628
- Issue date Nov 19, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driving device, optical print head and image forming device
- Patent number 8,581,946
- Issue date Nov 12, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Light emitting element array, drive circuit, optical print head, an...
- Patent number 8,542,262
- Issue date Sep 24, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive circuit, light print head, and image forming apparatus
- Patent number 8,525,861
- Issue date Sep 3, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driving device, print head and image forming device
- Patent number 8,471,884
- Issue date Jun 25, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reference voltage generation circuit, drive device, print head, and...
- Patent number 8,451,306
- Issue date May 28, 2013
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Driving circuit, driving device and image forming device
- Patent number 8,441,289
- Issue date May 14, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reference voltage generation circuit, drive circuit, light emitting...
- Patent number 8,421,427
- Issue date Apr 16, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reference voltage generation circuit, drive circuit, light emitting...
- Patent number 8,400,137
- Issue date Mar 19, 2013
- Oki Data Corporation
- Akira Nagumo
- G05 - CONTROLLING REGULATING
Information Patent Grant
Driver circuit, optical print head, and image forming apparatus
- Patent number 8,390,657
- Issue date Mar 5, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drive circuit, optical print head, and image forming apparatus
- Patent number 8,284,219
- Issue date Oct 9, 2012
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Light-emitting element array, driving device, and image forming app...
- Patent number 8,258,723
- Issue date Sep 4, 2012
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Redundance control of temperature compensation for a LED printhead
- Patent number 8,184,139
- Issue date May 22, 2012
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driver circuit and image forming apparatus
- Patent number 8,164,944
- Issue date Apr 24, 2012
- Oki Data Corporation
- Akira Nagumo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive device, LED array, LED head, and image forming apparatus prov...
- Patent number 8,149,259
- Issue date Apr 3, 2012
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driving circuit, LED head and image forming apparatus
- Patent number 8,138,681
- Issue date Mar 20, 2012
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Semiconductor device, print head and image forming apparatus
- Patent number 8,106,931
- Issue date Jan 31, 2012
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING DRIVEN ELEMENT CHIP, DRIVEN ELEMENT CHIP, E...
- Publication number 20190035971
- Publication date Jan 31, 2019
- Oki Data Corporation
- Akira NAGUMO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT-EMISSION DRIVE CIRCUIT AND IMAGE FORMING APPARATUS
- Publication number 20160295651
- Publication date Oct 6, 2016
- Oki Data Corporation
- Akira Nagumo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRIVE CIRCUIT, LIGHT PRINT HEAD, AND IMAGE FORMING APPARATUS
- Publication number 20130315613
- Publication date Nov 28, 2013
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIGHT-EMITTING ELEMENT ARRAY, DRIVING DEVICE, AND IMAGE FORMING APP...
- Publication number 20120301164
- Publication date Nov 29, 2012
- Oki Data Corporation
- Akira NAGUMO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRIVER DEVICE, PRINT HEAD, AND IMAGE FORMATION APPARATUS
- Publication number 20120249716
- Publication date Oct 4, 2012
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRIVER APPARATUS, PRINT HEAD AND IMAGE FORMING APPARATUS
- Publication number 20120251181
- Publication date Oct 4, 2012
- Oki Data Corporation
- Akira NAGUMO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVE DEVICE, LED ARRAY, LED HEAD, AND IMAGE FORMING APPARATUS PROV...
- Publication number 20120163868
- Publication date Jun 28, 2012
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Driver Apparatus, Print Head, and Image Forming Apparatus
- Publication number 20120050450
- Publication date Mar 1, 2012
- Oki Data Corporation
- Akira NAGUMO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRIVING DEVICE, PRINT HEAD AND IMAGE FORMING DEVICE
- Publication number 20120001996
- Publication date Jan 5, 2012
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRIVING DEVICE, PRINT HEAD AND IMAGE FORMING DEVICE
- Publication number 20110285805
- Publication date Nov 24, 2011
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
REFERENCE VOLTAGE GENERATION CIRCUIT, DRIVE DEVICE, PRINT HEAD, AND...
- Publication number 20110261138
- Publication date Oct 27, 2011
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Driver circuit, print head, and image forming apparatus
- Publication number 20110262184
- Publication date Oct 27, 2011
- Oki Data Corporation
- Akira Nagumo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVE DEVICE, PRINT HEAD AND IMAGE FORMING APPARATUS
- Publication number 20110234742
- Publication date Sep 29, 2011
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRIVE DEVICE, PRINT HEAD AND IMAGE FORMING APPARATUS
- Publication number 20110234743
- Publication date Sep 29, 2011
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRIVING DEVICE, OPTICAL PRINT HEAD AND IMAGE FORMING DEVICE
- Publication number 20110234734
- Publication date Sep 29, 2011
- Oki Data Corporation
- Akira Nagumo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DRIVE CIRCUIT, LIGHT PRINT HEAD, AND IMAGE FORMING APPARATUS
- Publication number 20110234001
- Publication date Sep 29, 2011
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRIVING CIRCUIT, DRIVING DEVICE AND IMAGE FORMING DEVICE
- Publication number 20110234741
- Publication date Sep 29, 2011
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DRIVING CIRCUIT AND APPARATUS, AND IMAGE FORMING APPARATUS
- Publication number 20110193924
- Publication date Aug 11, 2011
- Oki Data Corporation
- Akira NAGUMO
- G05 - CONTROLLING REGULATING
Information Patent Application
Driver circuit, driver apparatus, and image forming apparatus
- Publication number 20110181640
- Publication date Jul 28, 2011
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Driver circuit, driver apparatus, and image forming apparatus
- Publication number 20110133789
- Publication date Jun 9, 2011
- Oki Data Corporation
- Akira Nagumo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SEMICONDUCTOR COMPOSITE DEVICE, METHOD OF MANUFACTURING THE SAME, O...
- Publication number 20110050838
- Publication date Mar 3, 2011
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Driver circuit and image forming apparatus
- Publication number 20110001520
- Publication date Jan 6, 2011
- Oki Data Corporation
- Akira Nagumo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DRIVE CIRCUIT, OPTICAL PRINT HEAD, AND IMAGE FORMING APPARATUS
- Publication number 20100182392
- Publication date Jul 22, 2010
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DRIVING CIRCUIT, RECORDING HEAD, IMAGE FORMING APPARATUS, AND DISPL...
- Publication number 20100123691
- Publication date May 20, 2010
- Oki Data Corporation
- Akira Nagumo
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
LIGHT EMITTING ELEMENT ARRAY, DRIVE CIRCUIT, OPTICAL PRINT HEAD, AN...
- Publication number 20100124438
- Publication date May 20, 2010
- Akira NAGUMO
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Driver circuit, optical print head, and image forming apparatus
- Publication number 20100097437
- Publication date Apr 22, 2010
- Oki Data Corporation
- Akira Nagumo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Light-emitting element array, driving device, and image forming app...
- Publication number 20100026214
- Publication date Feb 4, 2010
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIGHT-EMITTING ELEMENT ARRAY, DRIVE CONTROLLING DEVICE, RECORDING H...
- Publication number 20090295901
- Publication date Dec 3, 2009
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Drive circuit, light emitting diode head, and image forming apparatus
- Publication number 20090243512
- Publication date Oct 1, 2009
- Oki Data Corporation
- Akira Nagumo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Drive circuit, light print head, and image forming apparatus
- Publication number 20090237483
- Publication date Sep 24, 2009
- Oki Data Corporation
- Akira Nagumo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Akira Nagumo

Person

Patents Grantslast 30 patents

Light-emission drive circuit and image forming apparatus

Driving circuit and apparatus, and image forming apparatus

Driver circuit, driver apparatus, and image forming apparatus

Light-emitting element array, driving device, and image forming app...

Drive circuit, light print head, and image forming apparatus

Drive device, print head and image forming apparatus

Driving device, print head and image forming device

Drive device, print head and image forming apparatus

Driver circuit for driving a row of switch elements such as light e...

Drive device, LED array, LED head, and image forming apparatus prov...

Semiconductor composite device, method of manufacturing the same, o...

Driver apparatus, print head and image forming apparatus

Driver device, print head, and image formation apparatus

Driver apparatus, print head, and image forming apparatus

Driving device, optical print head and image forming device

Light emitting element array, drive circuit, optical print head, an...

Drive circuit, light print head, and image forming apparatus

Driving device, print head and image forming device

Reference voltage generation circuit, drive device, print head, and...

Driving circuit, driving device and image forming device

Reference voltage generation circuit, drive circuit, light emitting...

Reference voltage generation circuit, drive circuit, light emitting...

Driver circuit, optical print head, and image forming apparatus

Drive circuit, optical print head, and image forming apparatus

Light-emitting element array, driving device, and image forming app...

Redundance control of temperature compensation for a LED printhead

Driver circuit and image forming apparatus

Drive device, LED array, LED head, and image forming apparatus prov...

Driving circuit, LED head and image forming apparatus

Semiconductor device, print head and image forming apparatus

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING DRIVEN ELEMENT CHIP, DRIVEN ELEMENT CHIP, E...

LIGHT-EMISSION DRIVE CIRCUIT AND IMAGE FORMING APPARATUS

DRIVE CIRCUIT, LIGHT PRINT HEAD, AND IMAGE FORMING APPARATUS

LIGHT-EMITTING ELEMENT ARRAY, DRIVING DEVICE, AND IMAGE FORMING APP...

DRIVER DEVICE, PRINT HEAD, AND IMAGE FORMATION APPARATUS

DRIVER APPARATUS, PRINT HEAD AND IMAGE FORMING APPARATUS

DRIVE DEVICE, LED ARRAY, LED HEAD, AND IMAGE FORMING APPARATUS PROV...

Driver Apparatus, Print Head, and Image Forming Apparatus

DRIVING DEVICE, PRINT HEAD AND IMAGE FORMING DEVICE

DRIVING DEVICE, PRINT HEAD AND IMAGE FORMING DEVICE

REFERENCE VOLTAGE GENERATION CIRCUIT, DRIVE DEVICE, PRINT HEAD, AND...

Driver circuit, print head, and image forming apparatus

DRIVE DEVICE, PRINT HEAD AND IMAGE FORMING APPARATUS

DRIVE DEVICE, PRINT HEAD AND IMAGE FORMING APPARATUS

DRIVING DEVICE, OPTICAL PRINT HEAD AND IMAGE FORMING DEVICE

DRIVE CIRCUIT, LIGHT PRINT HEAD, AND IMAGE FORMING APPARATUS

DRIVING CIRCUIT, DRIVING DEVICE AND IMAGE FORMING DEVICE

DRIVING CIRCUIT AND APPARATUS, AND IMAGE FORMING APPARATUS

Driver circuit, driver apparatus, and image forming apparatus

Driver circuit, driver apparatus, and image forming apparatus

SEMICONDUCTOR COMPOSITE DEVICE, METHOD OF MANUFACTURING THE SAME, O...

Driver circuit and image forming apparatus

DRIVE CIRCUIT, OPTICAL PRINT HEAD, AND IMAGE FORMING APPARATUS

DRIVING CIRCUIT, RECORDING HEAD, IMAGE FORMING APPARATUS, AND DISPL...

LIGHT EMITTING ELEMENT ARRAY, DRIVE CIRCUIT, OPTICAL PRINT HEAD, AN...

Driver circuit, optical print head, and image forming apparatus

Light-emitting element array, driving device, and image forming app...

LIGHT-EMITTING ELEMENT ARRAY, DRIVE CONTROLLING DEVICE, RECORDING H...

Drive circuit, light emitting diode head, and image forming apparatus

Drive circuit, light print head, and image forming apparatus