Inventor

FUJISHIMA KAZUYASU

JP93 patents

Patents

50 patents

US5179687AJan 12, 1993

Semiconductor memory device containing a cache and an operation method thereof

MITSUBISHI ELECTRIC CORP165 citations99

US4977542ADec 11, 1990

Dynamic semiconductor memory device of a twisted bit line system having improved reliability of readout

MITSUBISHI ELECTRIC CORP446 citations99

US5509132AApr 16, 1996

Semiconductor memory device having an SRAM as a cache memory integrated on the same chip and operating method thereof

MITSUBISHI ELECTRIC CORP124 citations98

US5222047AJun 22, 1993

Semiconductor memory device for simple cache system with selective coupling of bit line pairs

MITSUBISHI ELECTRIC CORP39 citations96

US5283762AFeb 1, 1994

Semiconductor device containing voltage converting circuit and operating method thereof

MITSUBISHI ELECTRIC CORP62 citations96

US5214601AMay 25, 1993

Bit line structure for semiconductor memory device including cross-points and multiple interconnect layers

MITSUBISHI ELECTRIC CORP37 citations96

US5111386AMay 5, 1992

Cache contained type semiconductor memory device and operating method therefor

MITSUBISHI ELECTRIC CORP167 citations96

US5077688ADec 31, 1991

Semiconductor memory device having improved memory cells provided with cylindrical type capacitors

MITSUBISHI ELECTRIC CORP58 citations96

US4926385AMay 15, 1990

Semiconductor memory device with cache memory addressable by block within each column

MITSUBISHI ELECTRIC CORP91 citations96

US4918692AApr 17, 1990

Automated error detection for multiple block memory array chip and correction thereof

MITSUBISHI ELECTRIC CORP74 citations96

US4903268AFeb 20, 1990

Semiconductor memory device having on-chip error check and correction functions

MITSUBISHI ELECTRIC CORP59 citations96

US4855953AAug 8, 1989

Semiconductor memory device having stacked memory capacitors and method for manufacturing the same

MITSUBISHI ELECTRIC CORP58 citations96

US4730320AMar 8, 1988

Semiconductor memory device

MITSUBISHI ELECTRIC CORP63 citations96

US4675850AJun 23, 1987

Semiconductor memory device

MITSUBISHI ELECTRIC CORP58 citations96

US6414883B2Jul 2, 2002

Semiconductor memory device

MITSUBISHI ELECTRIC CORP18 citations93

US6404691B1Jun 11, 2002

Semiconductor memory device for simple cache system

MITSUBISHI ELECTRIC CORP17 citations93

US5969420AOct 19, 1999

Semiconductor device comprising a plurality of interconnection patterns

MITSUBISHI ELECTRIC CORP24 citations93

US5943273AAug 24, 1999

Semiconductor memory device

MITSUBISHI ELECTRIC CORP23 citations93

US5682343AOct 28, 1997

Hierarchical bit line arrangement in a semiconductor memory

MITSUBISHI ELECTRIC CORP54 citations93

US5550769AAug 27, 1996

Bit line structure for semiconductor memory device

MITSUBISHI ELECTRIC CORP21 citations93

US5416734AMay 16, 1995

Bit line structure for semiconductor memory device

MITSUBISHI ELECTRIC CORP29 citations93

US5371714ADec 6, 1994

Method and apparatus for driving word line in block access memory

MITSUBISHI ELECTRIC CORP27 citations93

US5315548AMay 24, 1994

Column selecting circuit in semiconductor memory device

MITSUBISHI ELECTRIC CORP20 citations93

US5289417AFeb 22, 1994

Semiconductor memory device with redundancy circuit

MITSUBISHI ELECTRIC CORP26 citations93

US5280443AJan 18, 1994

Bit line structure for semiconductor memory device

MITSUBISHI ELECTRIC CORP26 citations93

US5267214ANov 30, 1993

Shared-sense amplifier control signal generating circuit in dynamic type semiconductor memory device and operating method therefor

MITSUBISHI ELECTRIC CORP30 citations93

US5250458AOct 5, 1993

Method for manufacturing semiconductor memory device having stacked memory capacitors

MITSUBISHI ELECTRIC CORP23 citations93

US5226139AJul 6, 1993

Semiconductor memory device with a built-in cache memory and operating method thereof

MITSUBISHI ELECTRIC CORP50 citations93

US5189316AFeb 23, 1993

Stepdown voltage generator having active mode and standby mode

MITSUBISHI ELECTRIC CORP45 citations93

US5185744AFeb 9, 1993

Semiconductor memory device with test circuit

MITSUBISHI ELECTRIC CORP39 citations93

US5060230AOct 22, 1991

On chip semiconductor memory arbitrary pattern, parallel test apparatus and method

MITSUBISHI ELECTRIC CORP47 citations93

US5014241AMay 7, 1991

Dynamic semiconductor memory device having reduced soft error rate

MITSUBISHI ELECTRIC CORP25 citations93

US5012447AApr 30, 1991

Bit line structure for a dynamic type semiconductor memory device

MITSUBISHI ELECTRIC CORP32 citations93

US4953164AAug 28, 1990

Cache memory system having error correcting circuit

MITSUBISHI ELECTRIC CORP38 citations93

US4914632AApr 3, 1990

Semiconductor devices having redundancy circuitry and operating method therefor

MITSUBISHI ELECTRIC CORP33 citations93

US4914630AApr 3, 1990

Refresh arrangement in a block divided memory including a plurality of shift registers

MITSUBISHI ELECTRIC CORP48 citations93

US4896297AJan 23, 1990

Circuit for generating a boosted signal for a word line

MITSUBISHI ELECTRIC CORP35 citations93

US4839864AJun 13, 1989

Semiconductor memory device comprising programmable redundancy circuit

MITSUBISHI ELECTRIC CORP28 citations93

US4586171AApr 29, 1986

Semiconductor memory

MITSUBISHI ELECTRIC CORP40 citations93

US4833650AMay 23, 1989

Semiconductor memory device including programmable mode selection circuitry

MITSUBISHI ELECTRIC CORP39 citations92

US4808844AFeb 28, 1989

Semiconductor device

MITSUBISHI ELECTRIC CORP37 citations92

US4586167AApr 29, 1986

Semiconductor memory device

MITSUBISHI ELECTRIC CORP55 citations92

US4455628AJun 19, 1984

Substrate bias generating circuit

MITSUBISHI ELECTRIC CORP33 citations92

US6272055B1Aug 7, 2001

Semiconductor memory device

MITSUBISHI ELECTRIC CORP14 citations82

Showing the top 50 of 93 patents by PatentIndex Score.

FUJISHIMA KAZUYASU

Patents

Semiconductor memory device containing a cache and an operation method thereof

Dynamic semiconductor memory device of a twisted bit line system having improved reliability of readout

Semiconductor memory device having an SRAM as a cache memory integrated on the same chip and operating method thereof

Method and apparatus for driving word line in block access memory

Semiconductor memory device for simple cache system

Semiconductor integrated circuit

Column selecting circuit in semiconductor memory device

Semiconductor memory device

Semiconductor memory device for simple cache system

Semiconductor memory device for simple cache system with selective coupling of bit line pairs

Semiconductor device containing voltage converting circuit and operating method thereof

Bit line structure for semiconductor memory device including cross-points and multiple interconnect layers

Cache contained type semiconductor memory device and operating method therefor

Semiconductor memory device having improved memory cells provided with cylindrical type capacitors

Semiconductor memory device with cache memory addressable by block within each column

Automated error detection for multiple block memory array chip and correction thereof

Semiconductor memory device having on-chip error check and correction functions

Semiconductor memory device having stacked memory capacitors and method for manufacturing the same

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device for simple cache system

Semiconductor device comprising a plurality of interconnection patterns

Semiconductor memory device

Hierarchical bit line arrangement in a semiconductor memory

Bit line structure for semiconductor memory device

Bit line structure for semiconductor memory device

Method and apparatus for driving word line in block access memory

Column selecting circuit in semiconductor memory device

Semiconductor memory device with redundancy circuit

Bit line structure for semiconductor memory device

Shared-sense amplifier control signal generating circuit in dynamic type semiconductor memory device and operating method therefor

Method for manufacturing semiconductor memory device having stacked memory capacitors

Semiconductor memory device with a built-in cache memory and operating method thereof

Stepdown voltage generator having active mode and standby mode

Semiconductor memory device with test circuit

On chip semiconductor memory arbitrary pattern, parallel test apparatus and method

Dynamic semiconductor memory device having reduced soft error rate

Bit line structure for a dynamic type semiconductor memory device

Cache memory system having error correcting circuit

Semiconductor devices having redundancy circuitry and operating method therefor

Refresh arrangement in a block divided memory including a plurality of shift registers

Circuit for generating a boosted signal for a word line

Semiconductor memory device comprising programmable redundancy circuit

Semiconductor memory

Semiconductor memory device including programmable mode selection circuitry

Semiconductor device

Semiconductor memory device

Substrate bias generating circuit

Semiconductor memory device