Hirofumi Watanabe

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Imaging device, control method of imaging device, and pixel structure
- Patent number 9,871,984
- Issue date Jan 16, 2018
- Ricoh Company, Ltd.
- Kazuhiro Yoneda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Imaging device including a phototransistor, method of driving the i...
- Patent number 9,762,822
- Issue date Sep 12, 2017
- Ricoh Company, Ltd.
- Takaaki Negoro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Imaging device and electronic device
- Patent number 9,749,566
- Issue date Aug 29, 2017
- Ricoh Company, Ltd.
- Kazuhiro Yoneda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sense circuit and method of operation thereof and photoelectric con...
- Patent number 9,571,770
- Issue date Feb 14, 2017
- National Institute of Advanced Industrial Science and Technology
- Yutaka Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Solid-state image sensing device with electrode implanted into deep...
- Patent number 9,508,871
- Issue date Nov 29, 2016
- Ricoh Company, Ltd.
- Katsuyuki Sakurano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion device having two switch elements
- Patent number 9,478,568
- Issue date Oct 25, 2016
- Ricoh Company, Ltd.
- Katsuhiko Aisu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensor having a plurality of phototransistors separated by tr...
- Patent number 9,472,706
- Issue date Oct 18, 2016
- Ricoh Company, Ltd.
- Katsuyuki Sakurano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Phototransistor and semiconductor device
- Patent number 9,472,584
- Issue date Oct 18, 2016
- Ricoh Company, Ltd.
- Takaaki Negoro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and imaging apparatus
- Patent number 9,362,328
- Issue date Jun 7, 2016
- National Institute of Advanced Industrial Science and Technology
- Takaaki Negoro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric converter, photoelectric converter array and imaging...
- Patent number 9,337,234
- Issue date May 10, 2016
- National Institute of Advanced Industrial Science and Technology
- Yutaka Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for resetting photoelectric conversion device, and photoelec...
- Patent number 9,197,220
- Issue date Nov 24, 2015
- National Institute of Advanced Industrial Science and Technology
- Yutaka Hayashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method of varying gain of amplifying photoelectric conversion devic...
- Patent number 9,059,065
- Issue date Jun 16, 2015
- National Institute of Advanced Industrial Science and Technology
- Yutaka Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Infrared sensor device
- Patent number 8,969,810
- Issue date Mar 3, 2015
- Ricoh Company, Ltd.
- Takeshi Nagahisa
- G01 - MEASURING TESTING
Information Patent Grant
Temperature sensor and living body detector using temperature sensor
- Patent number 8,772,722
- Issue date Jul 8, 2014
- Ricoh Company, Ltd.
- Hidetaka Noguchi
- G01 - MEASURING TESTING
Information Patent Grant
Infrared sensor and infrared array sensor
- Patent number 8,759,772
- Issue date Jun 24, 2014
- Ricoh Company, Ltd.
- Hidetaka Noguchi
- G01 - MEASURING TESTING
Information Patent Grant
Amplifier
- Patent number 8,174,319
- Issue date May 8, 2012
- Ricoh Company, Ltd.
- Hideyuki Aota
- G05 - CONTROLLING REGULATING
Information Patent Grant
Stress-distribution detecting semiconductor package group and detec...
- Patent number 7,934,429
- Issue date May 3, 2011
- Ricoh Company, Ltd.
- Naohiro Ueda
- G01 - MEASURING TESTING
Information Patent Grant
Reference voltage generating circuit and constant voltage circuit
- Patent number 7,843,253
- Issue date Nov 30, 2010
- Ricoh Company, Ltd.
- Hideyuki Aota
- G11 - INFORMATION STORAGE
Information Patent Grant
Stress-distribution detecting semiconductor package group and detec...
- Patent number 7,735,375
- Issue date Jun 15, 2010
- Ricoh Company, Ltd.
- Naohiro Ueda
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor device
- Patent number 7,615,844
- Issue date Nov 10, 2009
- Ricoh Company, Ltd.
- Hirofumi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Temperature sensing circuit
- Patent number 7,592,854
- Issue date Sep 22, 2009
- Ricoh Company, Ltd.
- Hirofumi Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Reference voltage generating circuit and constant voltage circuit
- Patent number 7,426,146
- Issue date Sep 16, 2008
- Ricoh Company, Ltd.
- Hideyuki Aota
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,425,753
- Issue date Sep 16, 2008
- Ricoh Company, Ltd.
- Hidenori Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor apparatus and infrared light sensor
- Patent number 7,368,715
- Issue date May 6, 2008
- Ricoh Company, Ltd.
- Hirofumi Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor device
- Patent number 7,335,967
- Issue date Feb 26, 2008
- Ricoh Company, Ltd.
- Hirofumi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vehicle electrical power supply system for supplying power to a hig...
- Patent number 7,176,659
- Issue date Feb 13, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Yoshihito Asao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Temperature sensing circuit
- Patent number 7,078,954
- Issue date Jul 18, 2006
- Ricoh Company, Ltd.
- Hirofumi Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Temperature sensor
- Patent number 7,033,072
- Issue date Apr 25, 2006
- Ricoh Company, Ltd.
- Hideyuki Aota
- G01 - MEASURING TESTING
Information Patent Grant
Temperature sensor
- Patent number 6,921,199
- Issue date Jul 26, 2005
- Ricoh Company, Ltd.
- Hideyuki Aota
- G01 - MEASURING TESTING
Information Patent Grant
Voltage generating circuit and reference voltage source circuit emp...
- Patent number 6,882,135
- Issue date Apr 19, 2005
- Ricoh Company, Ltd.
- Shunsuke Andoh
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR DEVICE, IMAGING APPARATUS, AND METHOD OF MANUFACTURIN...
- Publication number 20160247847
- Publication date Aug 25, 2016
- RICOH COMPANY, LTD.
- Yoshinori Ueda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION DEVICE, IMAGE GENERATION DEVICE, AND METHO...
- Publication number 20160195431
- Publication date Jul 7, 2016
- RICOH COMPANY, LTD.
- Katsuhiko Aisu
- G01 - MEASURING TESTING
Information Patent Application
SOLID-STATE IMAGE SENSING DEVICE
- Publication number 20160126271
- Publication date May 5, 2016
- RICOH COMPANY, LTD.
- Katsuyuki Sakurano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMAGING DEVICE, CONTROL METHOD OF IMAGING DEVICE, AND PIXEL STRUCTURE
- Publication number 20160027835
- Publication date Jan 28, 2016
- RICOH COMPANY, LTD.
- Kazuhiro Yoneda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMAGING DEVICE AND ELECTRONIC DEVICE
- Publication number 20150264280
- Publication date Sep 17, 2015
- RICOH COMPANY, LTD.
- Kazuhiro Yoneda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PHOTOTRANSISTOR AND SEMICONDUCTOR DEVICE
- Publication number 20150214413
- Publication date Jul 30, 2015
- RICOH COMPANY, LTD.
- Takaaki NEGORO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD
- Publication number 20150171129
- Publication date Jun 18, 2015
- RICOH COMPANY, LTD.
- Katsuyuki Sakurano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMAGING DEVICE, METHOD OF DRIVING IMAGING DEVICE, AND CAMERA
- Publication number 20150070546
- Publication date Mar 12, 2015
- RICOH COMPANY, LTD.
- Takaaki Negoro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERTER ARRAY AND IMAGING...
- Publication number 20140239158
- Publication date Aug 28, 2014
- National Institute of Advanced Industrial Science
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INFRARED SENSOR DEVICE
- Publication number 20130284931
- Publication date Oct 31, 2013
- RICOH COMPANY, LTD.
- Takeshi Nagahisa
- G01 - MEASURING TESTING
Information Patent Application
METHOD OF VARYING GAIN OF AMPLIFYING PHOTOELECTRIC CONVERSION DEVIC...
- Publication number 20130240716
- Publication date Sep 19, 2013
- RICOH COMPANY, LTD.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND IMAGING APPARATUS
- Publication number 20130234277
- Publication date Sep 12, 2013
- RICOH COMPANY, LTD.
- Takaaki Negoro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SENSE CIRCUIT AND METHOD OF OPERATION THEREOF AND PHOTOELECTRIC CON...
- Publication number 20130187030
- Publication date Jul 25, 2013
- RICOH COMPANY, LTD.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR RESETTING PHOTOELECTRIC CONVERSION DEVICE, AND PHOTOELEC...
- Publication number 20130127504
- Publication date May 23, 2013
- RICOH COMPANY, LTD.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INFRARED SENSOR AND INFRARED ARRAY SENSOR
- Publication number 20120181430
- Publication date Jul 19, 2012
- RICOH COMPANY, LTD.
- Hidetaka NOGUCHI
- G01 - MEASURING TESTING
Information Patent Application
NET LIST GENERATION METHOD AND CIRCUIT SIMULATION METHOD
- Publication number 20110185326
- Publication date Jul 28, 2011
- RICOH COMPANY, LTD.
- Naohiro UEDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AMPLIFIER
- Publication number 20110169570
- Publication date Jul 14, 2011
- RICOH COMPANY, LTD.
- Hideyuki AOTA
- G05 - CONTROLLING REGULATING
Information Patent Application
TEMPERATURE SENSOR AND LIVING BODY DETECTOR USING TEMPERATURE SENSOR
- Publication number 20110155913
- Publication date Jun 30, 2011
- RICOH COMPANY, LTD.
- Hidetaka NOGUCHI
- G01 - MEASURING TESTING
Information Patent Application
Stress-Distribution Detecting Semiconductor Package Group And Detec...
- Publication number 20100193887
- Publication date Aug 5, 2010
- RICOH COMPANY, LTD.
- Naohiro Ueda
- G01 - MEASURING TESTING
Information Patent Application
STRESS-DISTRIBUTION DETECTING SEMICONDUCTOR PACKAGE GROUP AND DETEC...
- Publication number 20090064791
- Publication date Mar 12, 2009
- RICOH COMPANY, LTD.
- Naohiro Ueda
- G01 - MEASURING TESTING
Information Patent Application
REFERENCE VOLTAGE GENERATING CIRCUIT AND CONSTANT VOLTAGE CIRCUIT
- Publication number 20080303588
- Publication date Dec 11, 2008
- RICOH COMPANY, LTD.,
- Hideyuki AOTA
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor device
- Publication number 20080122035
- Publication date May 29, 2008
- Hirofumi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Reference circuit capable of supplying low voltage precisely
- Publication number 20070109039
- Publication date May 17, 2007
- Hirofumi Watanabe
- G05 - CONTROLLING REGULATING
Information Patent Application
Semiconductor apparatus and infrared light sensor
- Publication number 20070102638
- Publication date May 10, 2007
- Hirofumi Watanabe
- G01 - MEASURING TESTING
Information Patent Application
Reference voltage generating circuit and constant voltage circuit
- Publication number 20070047332
- Publication date Mar 1, 2007
- Hideyuki Aota
- G11 - INFORMATION STORAGE
Information Patent Application
Temperature sensing circuit
- Publication number 20060226888
- Publication date Oct 12, 2006
- Hirofumi Watanabe
- G01 - MEASURING TESTING
Information Patent Application
Temperature detecting circuit
- Publication number 20060197581
- Publication date Sep 7, 2006
- Yong-Jin Chun
- G01 - MEASURING TESTING
Information Patent Application
Semiconductor device
- Publication number 20060065949
- Publication date Mar 30, 2006
- Hidenori Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Temperature sensor
- Publication number 20050270011
- Publication date Dec 8, 2005
- Hideyuki Aota
- G01 - MEASURING TESTING
Information Patent Application
Reference voltage source circuit operating with low voltage
- Publication number 20050218968
- Publication date Oct 6, 2005
- Hirofumi Watanabe
- G05 - CONTROLLING REGULATING

Hirofumi Watanabe

Person

Patents Grantslast 30 patents

Imaging device, control method of imaging device, and pixel structure

Imaging device including a phototransistor, method of driving the i...

Imaging device and electronic device

Sense circuit and method of operation thereof and photoelectric con...

Solid-state image sensing device with electrode implanted into deep...

Photoelectric conversion device having two switch elements

Image sensor having a plurality of phototransistors separated by tr...

Phototransistor and semiconductor device

Semiconductor device and imaging apparatus

Photoelectric converter, photoelectric converter array and imaging...

Method for resetting photoelectric conversion device, and photoelec...

Method of varying gain of amplifying photoelectric conversion devic...

Infrared sensor device

Temperature sensor and living body detector using temperature sensor

Infrared sensor and infrared array sensor

Amplifier

Stress-distribution detecting semiconductor package group and detec...

Reference voltage generating circuit and constant voltage circuit

Stress-distribution detecting semiconductor package group and detec...

Semiconductor device

Temperature sensing circuit

Reference voltage generating circuit and constant voltage circuit

Semiconductor device

Semiconductor apparatus and infrared light sensor

Semiconductor device

Vehicle electrical power supply system for supplying power to a hig...

Temperature sensing circuit

Temperature sensor

Temperature sensor

Voltage generating circuit and reference voltage source circuit emp...

Patents Applicationslast 30 patents

SEMICONDUCTOR DEVICE, IMAGING APPARATUS, AND METHOD OF MANUFACTURIN...

PHOTOELECTRIC CONVERSION DEVICE, IMAGE GENERATION DEVICE, AND METHO...

SOLID-STATE IMAGE SENSING DEVICE

IMAGING DEVICE, CONTROL METHOD OF IMAGING DEVICE, AND PIXEL STRUCTURE

IMAGING DEVICE AND ELECTRONIC DEVICE

PHOTOTRANSISTOR AND SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD

IMAGING DEVICE, METHOD OF DRIVING IMAGING DEVICE, AND CAMERA

PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERTER ARRAY AND IMAGING...

INFRARED SENSOR DEVICE

METHOD OF VARYING GAIN OF AMPLIFYING PHOTOELECTRIC CONVERSION DEVIC...

SEMICONDUCTOR DEVICE AND IMAGING APPARATUS

SENSE CIRCUIT AND METHOD OF OPERATION THEREOF AND PHOTOELECTRIC CON...

METHOD FOR RESETTING PHOTOELECTRIC CONVERSION DEVICE, AND PHOTOELEC...

INFRARED SENSOR AND INFRARED ARRAY SENSOR

NET LIST GENERATION METHOD AND CIRCUIT SIMULATION METHOD

AMPLIFIER

TEMPERATURE SENSOR AND LIVING BODY DETECTOR USING TEMPERATURE SENSOR

Stress-Distribution Detecting Semiconductor Package Group And Detec...

STRESS-DISTRIBUTION DETECTING SEMICONDUCTOR PACKAGE GROUP AND DETEC...

REFERENCE VOLTAGE GENERATING CIRCUIT AND CONSTANT VOLTAGE CIRCUIT

Semiconductor device

Reference circuit capable of supplying low voltage precisely

Semiconductor apparatus and infrared light sensor

Reference voltage generating circuit and constant voltage circuit

Temperature sensing circuit

Temperature detecting circuit

Semiconductor device

Temperature sensor

Reference voltage source circuit operating with low voltage