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Inventor

Masahiro Tomatsu

Inventor
Yokohama, JP

Overview

3→
Patents
1990–1996
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.

G02Bprimary
G02BOptical elements, systems or apparatus40%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%
G09FDisplaying20%
G11BInformation storage based on relative movement between record carrier and transducer20%
PatentTitleYear
5,550,657'Liquid crystal display device having an optimized ridged layer to improve luminosity'19965,040,098'Backlight for an electronic display'19914,920,441'Flexible magnetic diskette'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1996Patents assigned to FUJITSU KASEI KK (3)· patent assignee history
1990–1996Patents assigned to FUJITSU LTD (3)· patent assignee history
1990Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1990–1996Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU KASEI KK31990–1996
FUJITSU LTD31990–1996
NIPPON TELEGRAPH & TELEPHONE11990
Locations
LocationPatentsSpan
Yokohama, JP31990–1996