Inventor

Masateru Yoshida

Inventor

Tanashi, JP

Overview

4→

Patents

1976–1978

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.

G04Gprimary

G04GElectronic time-pieces44%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein22%

G04CElectromechanical clocks or watches11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

Y10TTechnical subjects covered by former us classification11%

PatentTitleYear

4,083,177'Liquid crystal display wrist watch'1978 4,020,627'Liquid crystal display electronic watch'1977 3,979,899'Digital display type electronic time keeper'1976 3,973,388'Liquid crystal display cell'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1978Patents assigned to CITIZEN WATCH CO LTD (3)· patent assignee history

1976Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history

1976–1978Based in Tanashi, JP· patent location history

1976Based in Itami, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CITIZEN WATCH CO LTD	3	1976–1978
MITSUBISHI ELECTRIC CORP	1	1976

Locations

Location	Patents	Span
Tanashi, JP	3	1976–1978
Itami, JP	1	1976