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Inventor

Kazuaki Ujiie

Inventor
Tokyo, JP

Overview

3→
Patents
1987–2004
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G11Cprimary
G11CStatic stores60%
H10BElectronic memory devices40%
PatentTitleYear
6,829,178'Nonvolatile memory device'20044,881,201'Semiconductor integrated circuit device'19894,692,904'Semiconductor integrated circuit device'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to HITACHI LTD (1)· patent assignee history
1987Patents assigned to HITACHI MICROCUMPUTER ENG (1)· patent assignee history
1987–1989Based in Tokyo, JP· patent location history
1989Patents assigned to HITACHI LTD & HITACHI MICROCOM (1)· patent assignee history
2004Patents assigned to HITACHI ULSI SYS CO LTD (1)· patent assignee history
2004Patents assigned to RENESAS TECH CORP (1)· patent assignee history
2004Based in Mitaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11987
HITACHI LTD & HITACHI MICROCOM11989
HITACHI MICROCUMPUTER ENG11987
HITACHI ULSI SYS CO LTD12004
RENESAS TECH CORP12004
Locations
LocationPatentsSpan
Tokyo, JP21987–1989
Mitaka, JP12004