Inventor

Kiyofumi Ochii

Inventor

Yokohama, JP

Overview

1977–1998

Patent span

Physics

Primary field (CPC G)

Patents· 46 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Cprimary

G11CStatic stores45%

H10BElectronic memory devices18%

H10DInorganic electric semiconductor devices10%

H03KPulse technique9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h102%

G06FElectric digital data processing1%

G09GArrangements or circuits for control of indicating devices using static means to present variable information1%

PatentTitleYear

5,796,137'Semiconductor memory device having capacitor of thin film transistor structure'1998 5,712,652'Liquid crystal display device'1998 5,661,678'Semiconductor memory device using dynamic type memory cells'1997 5,563,434'Semiconductor memory device having capacitor of thin film transistor structure'1996 5,557,566'Semiconductor nonvolatile ram having E2PROM with a floating gate located above the midportion of the transistor channel'1996 5,517,454'Semiconductor memory device having refresh circuits'1996 5,317,532'Semiconductor memory device having voltage stress testing capability'1994 5,315,546'Non-volatile semiconductor memory using a thin film transistor'1994 5,281,843'Thin-film transistor, free from parasitic operation'1994 5,282,162'Semiconductor memory device having capacitor of thin film transistor structure'1994 5,278,459'Static semiconductor memory using thin film FET'1994 5,276,647'Static random access memory including stress test circuitry'1994 5,262,988'Dynamic memory cell and dynamic memory'1993 5,239,501'Static memory cell'1993 5,204,834'Static semiconductor memory device'1993 5,157,474'Static memory'1992 5,132,929'Static RAM including leakage current detector'1992 4,958,316'Static random access memory'1990 4,907,059'Semiconductor bipolar-CMOS inverter'1990 4,903,096'Semiconductor memory device with barrier layer'1990 4,901,284'Static random access memory'1990 4,814,841'Semiconductor device'1989 4,813,021'Semiconductor memory device with delayed precharge signals'1989 4,779,014'BiCMOS logic circuit with additional drive to the pull-down bipolar output transistor'1988 4,710,897'Semiconductor memory device comprising six-transistor memory cells'1987 4,687,954'CMOS hysteresis circuit with enable switch or natural transistor'1987 4,661,202'Method of manufacturing semiconductor device'1987 4,639,895'Semiconductor memory device'1987 4,616,148'Sense amplifier'1986 4,612,631'Static type semiconductor memory circuit'1986 4,570,091'Output buffer circuit'1986 4,566,081'Semiconductor device with spare memory cells'1986 4,546,455'Semiconductor device'1985 4,535,255'Positive feedback amplifier circuitry'1985 4,528,646'Semiconductor memory with selectively enabled precharge and sense amplifier circuits'1985 4,490,697'Signal propagating device for a plurality of memory cells'1984 4,435,793'Semiconductor memory device with dummy word line/sense amplifier activation'1984 4,417,328'Random access semiconductor memory device using MOS transistors'1983 4,379,346'Semiconductor memory device'1983 4,255,678'Voltage sense circuit'1981 4,233,672'High-speed semiconductor device'1980 4,151,610'High density semiconductor memory device formed in a well and having more than one capacitor'1979 4,136,292'Voltage sensing circuit of differential input type'1979 4,114,192'Semiconductor memory device to reduce parasitic output capacitance'1978 4,103,345'Semiconductor memory with data detection circuit'1978 4,044,342'Dynamic type semiconductor memory device'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1992Patents assigned to TOKYO SHIBAURA ELECTRIC CO (19)· patent assignee history

1977–1998Based in Yokohama, JP· patent location history

1978–1979Based in Kawasaki, JP· patent location history

1980–1981Based in Inagi, JP· patent location history

1986–1998Patents assigned to TOSHIBA KK (26)· patent assignee history

1989Patents assigned to TOKYO SHIBAYRA DENKI KABUSHIKI (1)· patent assignee history

1996–1998Based in Koganei, JP· patent location history

1997Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	26	1986–1998
TOKYO SHIBAURA ELECTRIC CO	19	1977–1992
TOKYO SHIBAYRA DENKI KABUSHIKI	1	1989

Locations

Location	Patents	Span
Yokohama, JP	38	1977–1998
Kawasaki, JP	3	1978–1979
Koganei, JP	2	1996–1998
Inagi, JP	2	1980–1981
Tokyo, JP	1	1997