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Inventor

Hiromi Tsukada

Inventor
Kokubunji, JP

Overview

4→
Patents
1990–1996
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G11Cprimary
G11CStatic stores80%
H10DInorganic electric semiconductor devices20%
PatentTitleYear
5,506,804'Dynamic Random Access Type Semiconductor Device'19965,276,648'Testing method for a semiconductor memory device'19945,150,325'Bi-CMOS semiconductor memory device, including improved layout structure and testing method'19924,941,128'Semiconductor memory device having means for providing a precharge voltage equivalent to a prescribed selection voltage'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1996Patents assigned to HITACHI LTD (4)· patent assignee history
1990–1994Patents assigned to HITACHI VLSI ENG (3)· patent assignee history
1990–1996Based in Kokubunji, JP· patent location history
1994Based in Tokyo, JP· patent location history
1996Patents assigned to VLSI ENGINEERING CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD41990–1996
HITACHI VLSI ENG31990–1994
VLSI ENGINEERING CORP11996
Locations
LocationPatentsSpan
Kokubunji, JP31990–1996
Tokyo, JP11994