Yuichi Ohkubo

Person

Kodaira, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Brushless motor driving circuit
- Patent number 8,390,222
- Issue date Mar 5, 2013
- Oki Semiconductor Co., Ltd.
- Kunio Seki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed regulating circuit with starter and storage medium driv...
- Patent number 5,621,288
- Issue date Apr 15, 1997
- Hitachi, Ltd.
- Kunio Seki
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor integrated circuit device
- Patent number 5,428,281
- Issue date Jun 27, 1995
- Hitachi, Ltd.
- Kunio Seki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Monolithic semiconductor integrated circuit device having current a...
- Patent number 5,053,650
- Issue date Oct 1, 1991
- Hitachi, Ltd.
- Yuichi Ohkubo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Variable electronic impedance circuit
- Patent number 4,525,636
- Issue date Jun 25, 1985
- Hitachi, Ltd.
- Yasuo Kominami
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic impedance circuit including a compensation arrangement f...
- Patent number 4,520,282
- Issue date May 28, 1985
- Hitachi, Ltd.
- Kazuo Watanabe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switchable signal compressor/signal expander
- Patent number 4,412,189
- Issue date Oct 25, 1983
- Hitachi, Ltd.
- Yasuo Kominami
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
OVERCURRENT DETECTING CIRCUIT AND POWER SUPPLY DEVICE
- Publication number 20100237897
- Publication date Sep 23, 2010
- Hiroyuki Kikuta
- G01 - MEASURING TESTING
Information Patent Application
OVERCURRENT DETECTING CIRCUIT AND POWER SUPPLY DEVICE
- Publication number 20100237898
- Publication date Sep 23, 2010
- Hiroyuki Kikuta
- G01 - MEASURING TESTING
Information Patent Application
BRUSHLESS MOTOR DRIVING APPARATUS
- Publication number 20100237813
- Publication date Sep 23, 2010
- Kunio SEKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MOTOR DRIVING APPARATUS
- Publication number 20100237812
- Publication date Sep 23, 2010
- Kunio SEKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
BRUSHLESS MOTOR DRIVING CIRCUIT
- Publication number 20100237816
- Publication date Sep 23, 2010
- Kunio SEKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DRIVING CIRCUIT FOR BRUSHLESS MOTOR USING HALL ELEMENT
- Publication number 20100237818
- Publication date Sep 23, 2010
- Oki Semiconductor Co., Ltd.
- Yuichi Ohkubo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VOLTAGE GENERATING CIRCUIT
- Publication number 20100237926
- Publication date Sep 23, 2010
- Oki Semiconductor Co., Ltd.
- Hiroyuki Kikuta
- G06 - COMPUTING CALCULATING COUNTING

Yuichi Ohkubo

Person

Patents Grantslast 30 patents

Brushless motor driving circuit

Motor speed regulating circuit with starter and storage medium driv...

Semiconductor integrated circuit device

Monolithic semiconductor integrated circuit device having current a...

Variable electronic impedance circuit

Electronic impedance circuit including a compensation arrangement f...

Switchable signal compressor/signal expander

Patents Applicationslast 30 patents

OVERCURRENT DETECTING CIRCUIT AND POWER SUPPLY DEVICE

OVERCURRENT DETECTING CIRCUIT AND POWER SUPPLY DEVICE

BRUSHLESS MOTOR DRIVING APPARATUS

MOTOR DRIVING APPARATUS

BRUSHLESS MOTOR DRIVING CIRCUIT

DRIVING CIRCUIT FOR BRUSHLESS MOTOR USING HALL ELEMENT

VOLTAGE GENERATING CIRCUIT