Inventor

IWAMURA MASAHIRO

JP92 patents

Patents

50 patents

US5784630AJul 21, 1998

Method and apparatus for processing data in multiple modes in accordance with parallelism of program by using cache memory

HITACHI LTD127 citations99

US5133064AJul 21, 1992

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

HITACHI LTD182 citations99

US5968160AOct 19, 1999

Method and apparatus for processing data in multiple modes in accordance with parallelism of program by using cache memory

HITACHI LTD75 citations96

US5734913AMar 31, 1998

Low power consumption semiconductor integrated circuit device and microprocessor

HITACHI LTD88 citations96

US5542083AJul 30, 1996

Information processor and information processing system utilizing clock signal

HITACHI LTD37 citations96

US5457790AOct 10, 1995

Low power consumption semiconductor integrated circuit device and microprocessor

HITACHI LTD87 citations96

US5388249AFeb 7, 1995

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

HITACHI LTD41 citations96

US4853560AAug 1, 1989

Logic circuit and semiconductor integrated circuit device capable of operating by different power supplies

HITACHI LTD107 citations96

US5940272AAug 17, 1999

Electric apparatus having heat radiating fin

HITACHI LTD59 citations95

US6671815B2Dec 30, 2003

Low power consumption semiconductor integrated circuit device and microprocessor

HITACHI LTD33 citations93

US6392908B2May 21, 2002

Method and apparatus for driving a semiconductor element

HITACHI LTD21 citations93

US6373731B1Apr 16, 2002

Surge voltage suppressed power inverter using a voltage driven switching element

HITACHI LTD46 citations93

US6275399B1Aug 14, 2001

Method and apparatus for driving a semiconductor element with variable resistance circuitry

HITACHI LTD31 citations93

US6088808AJul 11, 2000

Low power consumption semiconductor integrated circuit device and microprocessor

HITACHI LTD18 citations93

US6029220AFeb 22, 2000

Pipelined semiconductor devices suitable for ultra large scale integration

HITACHI LTD43 citations93

US5657264AAug 12, 1997

Semiconductor memory

HITACHI LTD18 citations93

US5412262AMay 2, 1995

Semiconductor integrated circuit device having plurality of supply potential lines connected thereto, and system employing the same

HITACHI LTD21 citations93

US5398318AMar 14, 1995

High speed, low noise output buffer with non-identical pairs of output transistors

HITACHI LTD26 citations93

US5362998ANov 8, 1994

Composite circuit of bipolar transistors and MOS transistors and semiconductor integrated circuit device using the same

HITACHI LTD28 citations93

US5153452AOct 6, 1992

Bipolar-MOS IC with internal voltage generator and LSI device with internal voltage generator

HITACHI LTD33 citations93

US5119314AJun 2, 1992

Semiconductor integrated circuit device

HITACHI LTD44 citations93

US4849658AJul 18, 1989

Dynamic logic circuit including bipolar transistors and field-effect transistors

HITACHI LTD46 citations93

US4813020AMar 14, 1989

Interface circuit, power conversion device, and vehicle-mounted electric machinery system

HITACHI LTD41 citations92

US5974560AOct 26, 1999

Information processor and information processing system utilizing clock signal

HITACHI LTD20 citations92

US5787043AJul 28, 1998

Semiconductor memory device having a redundancy capability

HITACHI LTD24 citations92

US5761150AJun 2, 1998

Synchronous memory with pipelined write operation

HITACHI LTD19 citations92

US5742551AApr 21, 1998

Memory circuit improved in electrical characteristics

HITACHI LTD20 citations92

US5734616AMar 31, 1998

Semiconductor memory device and sense circuit

HITACHI LTD28 citations92

US5506982AApr 9, 1996

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

HITACHI LTD21 citations92

US5378904AJan 3, 1995

Semiconductor integrated circuit and method and system for designing layout of the same

HITACHI LTD26 citations92

US5363332ANov 8, 1994

Current-driven signal interface implemented in semiconductor integrated circuit device

HITACHI LTD27 citations92

US5047669ASep 10, 1991

Tristate circuit using bipolar transistor and CMOS transistor

HITACHI LTD22 citations92

US4719373AJan 12, 1988

Gate circuit of combined field-effect and bipolar transistors

HITACHI LTD28 citations92

US4678943AJul 7, 1987

Inverting logic buffer BICMOS switching circuit using an enabling switch for three-state operation with reduced dissipation

HITACHI LTD51 citations92

US6040827AMar 21, 2000

Driver circuit, driver integrated circuit, and display device and electronic device using the driver circuit and driver integrated circuit

HITACHI LTD31 citations89

US4228430AOct 14, 1980

CRT Display apparatus with changeable cursor indicia

HITACHI LTD46 citations88

US7541758B2Jun 2, 2009

MOS rectifying device, driving method thereof, and motor generator and motor vehicle using thereof

HITACHI LTD12 citations84

US7208918B2Apr 24, 2007

Vehicle rotating electric machine

HITACHI LTD19 citations84

US7973405B2Jul 5, 2011

Integrated circuit for driving semiconductor device and power converter

HITACHI LTD13 citations83

US7763974B2Jul 27, 2010

Integrated circuit for driving semiconductor device and power converter

HITACHI LTD12 citations83

US7453240B2Nov 18, 2008

Generating apparatus and motor control apparatus

HITACHI LTD12 citations83

US6675311B2Jan 6, 2004

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

HITACHI LTD11 citations82

US5680066AOct 21, 1997

Signal transition detector circuit

HITACHI LTD15 citations82

US5640547AJun 17, 1997

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

HITACHI LTD13 citations82

US5285414AFeb 8, 1994

Semiconductor memory having transistors which drive data lines in accordance with values of write data and column select signal

HITACHI LTD18 citations82

Showing the top 50 of 92 patents by PatentIndex Score.

IWAMURA MASAHIRO

Patents

Method and apparatus for processing data in multiple modes in accordance with parallelism of program by using cache memory

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

Method and apparatus for processing data in multiple modes in accordance with parallelism of program by using cache memory

Low power consumption semiconductor integrated circuit device and microprocessor

Information processor and information processing system utilizing clock signal

Low power consumption semiconductor integrated circuit device and microprocessor

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

Logic circuit and semiconductor integrated circuit device capable of operating by different power supplies

Electric apparatus having heat radiating fin

Low power consumption semiconductor integrated circuit device and microprocessor

Method and apparatus for driving a semiconductor element

Surge voltage suppressed power inverter using a voltage driven switching element

Method and apparatus for driving a semiconductor element with variable resistance circuitry

Low power consumption semiconductor integrated circuit device and microprocessor

Pipelined semiconductor devices suitable for ultra large scale integration

Semiconductor memory

Semiconductor integrated circuit device having plurality of supply potential lines connected thereto, and system employing the same

High speed, low noise output buffer with non-identical pairs of output transistors

Composite circuit of bipolar transistors and MOS transistors and semiconductor integrated circuit device using the same

Bipolar-MOS IC with internal voltage generator and LSI device with internal voltage generator

Semiconductor integrated circuit device

Dynamic logic circuit including bipolar transistors and field-effect transistors

Semiconductor device

Composite circuit of bipolar transistors and field effect transistors

Bipolar transistor-field effect transistor composite circuit

High speed bi-comos switching circuit

Bi-MOS buffer circuit

Interface circuit, power conversion device, and vehicle-mounted electric machinery system

Information processor and information processing system utilizing clock signal

Semiconductor memory device having a redundancy capability

Synchronous memory with pipelined write operation

Memory circuit improved in electrical characteristics

Semiconductor memory device and sense circuit

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

Semiconductor integrated circuit and method and system for designing layout of the same

Current-driven signal interface implemented in semiconductor integrated circuit device

Tristate circuit using bipolar transistor and CMOS transistor

Gate circuit of combined field-effect and bipolar transistors

Inverting logic buffer BICMOS switching circuit using an enabling switch for three-state operation with reduced dissipation

Driver circuit, driver integrated circuit, and display device and electronic device using the driver circuit and driver integrated circuit

CRT Display apparatus with changeable cursor indicia

MOS rectifying device, driving method thereof, and motor generator and motor vehicle using thereof

Vehicle rotating electric machine

Integrated circuit for driving semiconductor device and power converter

Integrated circuit for driving semiconductor device and power converter

Generating apparatus and motor control apparatus

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

Signal transition detector circuit

Data processing system generating clock signal from an input clock, phase locked to the input clock and used for clocking logic devices

Semiconductor memory having transistors which drive data lines in accordance with values of write data and column select signal