P

Inventor

ISHII TATSUYA

JP152 patents
⚠️ This page may combine multiple inventors who share the name “ISHII TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

14 patents
US6683811B2Jan 27, 2004

Nonvolatile memory system, semiconductor memory, and writing method

HITACHI LTD83 citations99
US6567311B2May 20, 2003

Nonvolatile memory system, semiconductor memory, and writing method

HITACHI LTD81 citations99
US6157573ADec 5, 2000

Nonvolatile memory system, semiconductor memory, and writing method

HITACHI LTD90 citations99
US5982668ANov 9, 1999

Nonvolatile memory system, semiconductor memory and writing method

HITACHI LTD92 citations99
US5867428AFeb 2, 1999

Nonvolatile memory system semiconductor memory and writing method

HITACHI LTD98 citations99
US6452838B1Sep 17, 2002

Nonvolatile memory system, semiconductor memory and writing method

HITACHI LTD62 citations97
US6385092B1May 7, 2002

Nonvolatile memory system, semiconductor memory, and writing method

HITACHI LTD61 citations97
US6023425AFeb 8, 2000

Nonvolatile memory system, semiconductor memory, and writing method

HITACHI LTD80 citations97
US6473321B2Oct 29, 2002

Semiconductor integrated circuit and nonvolatile semiconductor memory

HITACHI LTD67 citations96
US6009016ADec 28, 1999

Nonvolatile memory system semiconductor memory and writing method

HITACHI LTD71 citations96
US5675172AOct 7, 1997

Metal-insulator-semiconductor device having reduced threshold voltage and high mobility for high speed/low-voltage operation

HITACHI LTD85 citations96
US5359221AOct 25, 1994

Semiconductor device

HITACHI LTD107 citations96
US6243313B1Jun 5, 2001

Semiconductor memory device, nonvolatile semiconductor memory device, and their data reading method

HITACHI LTD27 citations93
US6226212B1May 1, 2001

Semiconductor memory device, nonvolatile semiconductor memory device, and their data reading method

HITACHI LTD24 citations93

MITSUBISHI ELECTRIC CORP

13 patents
US5493236AFeb 20, 1996

Test analysis apparatus and analysis method for semiconductor wafer using OBIC analysis

MITSUBISHI ELECTRIC CORP334 citations96
US5112771AMay 12, 1992

Method of fibricating a semiconductor device having a trench

MITSUBISHI ELECTRIC CORP90 citations96
US5334540AAug 2, 1994

OBIC observation method and apparatus therefor

MITSUBISHI ELECTRIC CORP40 citations93
US5250831AOct 5, 1993

DRAM device having a memory cell array of a divided bit line type

MITSUBISHI ELECTRIC CORP34 citations93
US5243209ASep 7, 1993

Semiconductor memory device including junction field effect transistor and capacitor and method of manufacturing the same

MITSUBISHI ELECTRIC CORP41 citations93
US5393998AFeb 28, 1995

Semiconductor memory device containing junction field effect transistor

MITSUBISHI ELECTRIC CORP45 citations92
US4985368AJan 15, 1991

Method for making semiconductor device with no stress generated at the trench corner portion

MITSUBISHI ELECTRIC CORP24 citations92
US4894695AJan 16, 1990

Semiconductor device with no stress generated at the trench corner portion and the method for making the same

MITSUBISHI ELECTRIC CORP27 citations92
US5389873AFeb 14, 1995

Pressure contact chip and wafer testing device

MITSUBISHI ELECTRIC CORP53 citations91
US5463235AOct 31, 1995

Semiconductor memory comprising a memory cell without a transistor

MITSUBISHI ELECTRIC CORP17 citations74
US5010379AApr 23, 1991

Semiconductor memory device with two storage nodes

MITSUBISHI ELECTRIC CORP11 citations74
US4970580ANov 13, 1990

Semiconductor memory device having protruding cell configuration

MITSUBISHI ELECTRIC CORP10 citations74
US4884121ANov 28, 1989

Semiconductor device

MITSUBISHI ELECTRIC CORP9 citations74

RENESAS TECH CORP

9 patents

HITACHI ULSI ENG CORP

2 patents

RENESAS ELECTRONICS CORP

2 patents

(unassigned)

1 patent

TDK CORP

1 patent

TOSHIBA CERAMICS CO

1 patent

SEIKO EPSON CORP

1 patent

AKAI AKIHITO

1 patent

BROTHER IND LTD

1 patent

NAT AEROSPACE LAB

1 patent

NEC CORP

1 patent

NSK LTD

1 patent

SYNAPTICS JAPAN GK

1 patent

Showing the top 50 of 152 patents by PatentIndex Score.