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Inventor

Keiji Kawabata

Inventor
Tokyo, JP

Overview

3→
Patents
1984–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Bprimary
A61BDiagnosis33%
G04GElectronic time-pieces33%
H10DInorganic electric semiconductor devices33%
PatentTitleYear
11,045,168Ultrasonic imaging device, and ultrasonic transmission/reception method20214,764,798'Master slice IC having n and p channel transistors'19884,459,034'Time display apparatus'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1988Patents assigned to MITSUBISHI ELECTRIC CORP (2)· patent assignee history
1984Based in Kawanishi, JP· patent location history
1988Based in Hyogo, JP· patent location history
2021Patents assigned to HITACHI LTD (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP21984–1988
HITACHI LTD12021
Locations
LocationPatentsSpan
Tokyo, JP12021
Hyogo, JP11988
Kawanishi, JP11984