Tomohiko KAMATANI

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light deflection device, image projector, laser head lamp, and mobi...
- Patent number 11,137,595
- Issue date Oct 5, 2021
- Ricoh Company, Ltd.
- Akitoshi Mochida
- F21 - LIGHTING
Information Patent Grant
Signal level, adjustment apparatus, phase detection apparatus, moto...
- Patent number 10,401,768
- Issue date Sep 3, 2019
- Ricoh Company, Ltd.
- Tetsuroh Tatebe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase detecting device, motor system, image forming apparatus, conv...
- Patent number 10,326,387
- Issue date Jun 18, 2019
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor laser driver and image forming apparatus incorporatin...
- Patent number 9,983,503
- Issue date May 29, 2018
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Angle detecting device, motor drive controlling device, motor devic...
- Patent number 9,882,242
- Issue date Jan 30, 2018
- Ricoh Company, Ltd.
- Katsuhisa Furuse
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase detector, motor drive controller, motor apparatus, sheet feed...
- Patent number 9,682,835
- Issue date Jun 20, 2017
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase detector, motor drive controller, motor device, and method of...
- Patent number 9,515,587
- Issue date Dec 6, 2016
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage level detector, motor drive controller, motor apparatus, an...
- Patent number 9,515,641
- Issue date Dec 6, 2016
- Ricoh Company, Ltd.
- Hironobu Tani
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase detector, motor drive controller, motor device, and method of...
- Patent number 9,281,936
- Issue date Mar 8, 2016
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Motor drive controller and control method
- Patent number 8,872,453
- Issue date Oct 28, 2014
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor drive controller and control method
- Patent number 8,866,421
- Issue date Oct 21, 2014
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Angle detection device, motor driving device, and image forming app...
- Patent number 8,860,346
- Issue date Oct 14, 2014
- Ricoh Company, Ltd.
- Fumihiro Shimizu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor laser driving device and image forming apparatus havi...
- Patent number 8,804,784
- Issue date Aug 12, 2014
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Laser diode drive circuit
- Patent number 8,755,419
- Issue date Jun 17, 2014
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Receiving device, driving unit, and image forming apparatus
- Patent number 8,654,166
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driving circuit and electronic device using the same
- Patent number 8,587,346
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser diode drive circuit and image forming apparatus incorporating...
- Patent number 8,576,886
- Issue date Nov 5, 2013
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser driving unit, optical scanner having semiconduc...
- Patent number 8,576,887
- Issue date Nov 5, 2013
- Ricoh Company, Ltd.
- Katsuhisa Furuse
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser driver and image forming apparatus incorporatin...
- Patent number 8,559,476
- Issue date Oct 15, 2013
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multi-beam laser power control circuit and image forming apparatus...
- Patent number 8,526,474
- Issue date Sep 3, 2013
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor laser driving device and image forming apparatus havi...
- Patent number 8,483,250
- Issue date Jul 9, 2013
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device for detecting power supply voltage
- Patent number 8,248,140
- Issue date Aug 21, 2012
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Voltage comparison circuit, and semiconductor integrated circuit an...
- Patent number 7,940,036
- Issue date May 10, 2011
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device and semiconductor laser driving device
- Patent number 7,856,039
- Issue date Dec 21, 2010
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser driving unit and image forming apparatus having...
- Patent number 7,693,196
- Issue date Apr 6, 2010
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting diode drive circuit
- Patent number 7,679,296
- Issue date Mar 16, 2010
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Integrated circuit for controlling charging, charging device using...
- Patent number 7,671,564
- Issue date Mar 2, 2010
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Charge control circuit, charging device, and connection checking me...
- Patent number 7,649,343
- Issue date Jan 19, 2010
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Trimming circuit and semiconductor device
- Patent number 7,592,855
- Issue date Sep 22, 2009
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser driving unit and image forming apparatus having...
- Patent number 7,573,922
- Issue date Aug 11, 2009
- Ricoh Company, Ltd.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT DEFLECTION DEVICE, IMAGE PROJECTOR, LASER HEAD LAMP, AND MOBI...
- Publication number 20200201028
- Publication date Jun 25, 2020
- RICOH COMPANY, LTD.
- AKITOSHI MOCHIDA
- F21 - LIGHTING
Information Patent Application
PHASE DETECTING DEVICE, MOTOR SYSTEM, IMAGE FORMING APPARATUS, CONV...
- Publication number 20180041148
- Publication date Feb 8, 2018
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- G01 - MEASURING TESTING
Information Patent Application
SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATIN...
- Publication number 20170219951
- Publication date Aug 3, 2017
- Tomohiko KAMATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL LEVEL, ADJUSTMENT APPARATUS, PHASE DETECTION APPARATUS, MOTO...
- Publication number 20160370746
- Publication date Dec 22, 2016
- RICOH COMPANY, LTD.
- Tetsuroh TATEBE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ANGLE DETECTING DEVICE, MOTOR DRIVE CONTROLLING DEVICE, MOTOR DEVIC...
- Publication number 20160365815
- Publication date Dec 15, 2016
- RICOH COMPANY LTD.
- Katsuhisa FURUSE
- G01 - MEASURING TESTING
Information Patent Application
PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR APPARATUS, SHEET FEE...
- Publication number 20160145062
- Publication date May 26, 2016
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- G01 - MEASURING TESTING
Information Patent Application
VOLTAGE LEVEL DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR APPARATUS, AN...
- Publication number 20160094211
- Publication date Mar 31, 2016
- RICOH COMPANY, LTD.
- Hironobu Tani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR DEVICE, AND METHOD OF...
- Publication number 20150253159
- Publication date Sep 10, 2015
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- G01 - MEASURING TESTING
Information Patent Application
PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR DEVICE, AND METHOD OF...
- Publication number 20150256328
- Publication date Sep 10, 2015
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOTOR DRIVE CONTROLLER AND CONTROL METHOD
- Publication number 20130106326
- Publication date May 2, 2013
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVE CONTROLLER AND CONTROL METHOD
- Publication number 20130106327
- Publication date May 2, 2013
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ANGLE DETECTION DEVICE, MOTOR DRIVING DEVICE, AND IMAGE FORMING APP...
- Publication number 20130099708
- Publication date Apr 25, 2013
- Fumihiro SHIMIZU
- G01 - MEASURING TESTING
Information Patent Application
MULTI-BEAM LASER POWER CONTROL CIRCUIT AND IMAGE FORMING APPARATUS...
- Publication number 20120134379
- Publication date May 31, 2012
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEMICONDUCTOR LASER DRIVING DEVICE AND IMAGE FORMING APPARATUS HAVI...
- Publication number 20120134378
- Publication date May 31, 2012
- Tomohiko Kamatani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATIN...
- Publication number 20120014401
- Publication date Jan 19, 2012
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEMICONDUCTOR LASER DRIVING UNIT, OPTICAL SCANNER HAVING SEMICONDUC...
- Publication number 20110228802
- Publication date Sep 22, 2011
- RICOH COMPANY, LTD.,
- Katsuhisa FURUSE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LASER DIODE DRIVE CIRCUIT AND IMAGE FORMING APPARATUS INCORPORATING...
- Publication number 20110211606
- Publication date Sep 1, 2011
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20110057703
- Publication date Mar 10, 2011
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LASER DIODE DRIVE CIRCUIT
- Publication number 20110051764
- Publication date Mar 3, 2011
- RICOH COMPANY, LTD.
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASER DRIVING DEVICE AND IMAGE FORMING APPARATUS HAVI...
- Publication number 20100278202
- Publication date Nov 4, 2010
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RECEIVING DEVICE, DRIVING UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20100231988
- Publication date Sep 16, 2010
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE COMPARISON CIRCUIT, AND SEMICONDUCTOR INTEGRATED CIRCUIT AN...
- Publication number 20090206806
- Publication date Aug 20, 2009
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Charge control circuit, charging device, and connection checking me...
- Publication number 20090189572
- Publication date Jul 30, 2009
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND SEMICONDUCTOR LASER DRIVING DEVICE
- Publication number 20090141762
- Publication date Jun 4, 2009
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASER DRIVING UNIT AND IMAGE FORMING APPARATUS HAVING...
- Publication number 20080279240
- Publication date Nov 13, 2008
- RICOH COMPANY, LTD.
- Tomohiko KAMATANI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING DIODE DRIVE CIRCUIT
- Publication number 20080278098
- Publication date Nov 13, 2008
- Tomohiko Kamatani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
INTEGRATED CIRCUIT FOR CONTROLLING CHARGING, CHARGING DEVICE USING...
- Publication number 20080272738
- Publication date Nov 6, 2008
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Trimming circuit and semiconductor device
- Publication number 20080012624
- Publication date Jan 17, 2008
- Tomohiko Kamatani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Integrated circuit for controlling charging, charging device using...
- Publication number 20070216356
- Publication date Sep 20, 2007
- Tomohiko Kamatani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Driving circuit and electronic device using the same
- Publication number 20070069712
- Publication date Mar 29, 2007
- Tomohiko Kamatani
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Tomohiko KAMATANI

Person

Patents Grantslast 30 patents

Light deflection device, image projector, laser head lamp, and mobi...

Signal level, adjustment apparatus, phase detection apparatus, moto...

Phase detecting device, motor system, image forming apparatus, conv...

Semiconductor laser driver and image forming apparatus incorporatin...

Angle detecting device, motor drive controlling device, motor devic...

Phase detector, motor drive controller, motor apparatus, sheet feed...

Phase detector, motor drive controller, motor device, and method of...

Voltage level detector, motor drive controller, motor apparatus, an...

Phase detector, motor drive controller, motor device, and method of...

Motor drive controller and control method

Motor drive controller and control method

Angle detection device, motor driving device, and image forming app...

Semiconductor laser driving device and image forming apparatus havi...

Laser diode drive circuit

Receiving device, driving unit, and image forming apparatus

Driving circuit and electronic device using the same

Laser diode drive circuit and image forming apparatus incorporating...

Semiconductor laser driving unit, optical scanner having semiconduc...

Semiconductor laser driver and image forming apparatus incorporatin...

Multi-beam laser power control circuit and image forming apparatus...

Semiconductor laser driving device and image forming apparatus havi...

Semiconductor device for detecting power supply voltage

Voltage comparison circuit, and semiconductor integrated circuit an...

Semiconductor device and semiconductor laser driving device

Semiconductor laser driving unit and image forming apparatus having...

Light emitting diode drive circuit

Integrated circuit for controlling charging, charging device using...

Charge control circuit, charging device, and connection checking me...

Trimming circuit and semiconductor device

Semiconductor laser driving unit and image forming apparatus having...

Patents Applicationslast 30 patents

LIGHT DEFLECTION DEVICE, IMAGE PROJECTOR, LASER HEAD LAMP, AND MOBI...

PHASE DETECTING DEVICE, MOTOR SYSTEM, IMAGE FORMING APPARATUS, CONV...

SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATIN...

SIGNAL LEVEL, ADJUSTMENT APPARATUS, PHASE DETECTION APPARATUS, MOTO...

ANGLE DETECTING DEVICE, MOTOR DRIVE CONTROLLING DEVICE, MOTOR DEVIC...

PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR APPARATUS, SHEET FEE...

VOLTAGE LEVEL DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR APPARATUS, AN...

PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR DEVICE, AND METHOD OF...

PHASE DETECTOR, MOTOR DRIVE CONTROLLER, MOTOR DEVICE, AND METHOD OF...

MOTOR DRIVE CONTROLLER AND CONTROL METHOD

MOTOR DRIVE CONTROLLER AND CONTROL METHOD

ANGLE DETECTION DEVICE, MOTOR DRIVING DEVICE, AND IMAGE FORMING APP...

MULTI-BEAM LASER POWER CONTROL CIRCUIT AND IMAGE FORMING APPARATUS...

SEMICONDUCTOR LASER DRIVING DEVICE AND IMAGE FORMING APPARATUS HAVI...

SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATIN...

SEMICONDUCTOR LASER DRIVING UNIT, OPTICAL SCANNER HAVING SEMICONDUC...

LASER DIODE DRIVE CIRCUIT AND IMAGE FORMING APPARATUS INCORPORATING...

SEMICONDUCTOR DEVICE

LASER DIODE DRIVE CIRCUIT

SEMICONDUCTOR LASER DRIVING DEVICE AND IMAGE FORMING APPARATUS HAVI...

RECEIVING DEVICE, DRIVING UNIT, AND IMAGE FORMING APPARATUS

VOLTAGE COMPARISON CIRCUIT, AND SEMICONDUCTOR INTEGRATED CIRCUIT AN...

Charge control circuit, charging device, and connection checking me...

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR LASER DRIVING DEVICE

SEMICONDUCTOR LASER DRIVING UNIT AND IMAGE FORMING APPARATUS HAVING...

LIGHT EMITTING DIODE DRIVE CIRCUIT

INTEGRATED CIRCUIT FOR CONTROLLING CHARGING, CHARGING DEVICE USING...

Trimming circuit and semiconductor device

Integrated circuit for controlling charging, charging device using...

Driving circuit and electronic device using the same