Inventor

Toshimasa Fukagawa

Inventor

Tokyo, JP

Overview

2→

Patents

1976–1977

Patent span

Physics

Primary field (CPC G)

Patents· 2 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein40%

G01RMeasuring electric variables20%

G04GElectronic time-pieces20%

H04MTelephonic communication20%

PatentTitleYear

4,035,060'Electro-optic device'1977 3,944,330'Electro-optic device'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to DAINIPPON PRINTING CO LTD (2)· patent assignee history

1976–1977Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DAINIPPON PRINTING CO LTD	2	1976–1977

Locations

Location	Patents	Span
Tokyo, JP	2	1976–1977