Inventor

Hirotake Kamei

Inventor

Ibaraki, JP

Overview

2→

Patents

1976–1990

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.

G01Rprimary

G01RMeasuring electric variables33%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%

H01GCapacitors33%

PatentTitleYear

4,940,057'Apparatus for measuring brain function using nuclear magnetic resonance'1990 3,972,733'Method for producing electrical energy by means of liquid crystal devices'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1990Patents assigned to AGENCY IND SCIENCE TECHN (2)· patent assignee history

1976Based in Kunitachi, JP· patent location history

1990Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AGENCY IND SCIENCE TECHN	2	1976–1990

Locations

Location	Patents	Span
Ibaraki, JP	1	1990
Kunitachi, JP	1	1976