Inventor

Yoshiro Uchikawa

Inventor

Suwa, JP

Overview

3→

Patents

1987–2021

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.

G09Gprimary

G09GArrangements or circuits for control of indicating devices using static means to present variable information33%

C03CChemical composition of glasses, glazes or vitreous enamels17%

C04BLime, magnesia17%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%

H05BElectric heating17%

PatentTitleYear

10,966,288SiC heater2021 4,743,096'Liquid crystal video display device having pulse-width modulated \"ON\" signal for gradation display'1988 4,640,582'System for driving a liquid crystal matrix display so as to avoid crosstalk'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1988Patents assigned to SEIKO EPSON CORP (2)· patent assignee history

1987–1988Based in Suwa, JP· patent location history

2021Patents assigned to SUMITOMO OSAKA CEMENT CO LTD (1)· patent assignee history

2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO EPSON CORP	2	1987–1988
SUMITOMO OSAKA CEMENT CO LTD	1	2021

Locations

Location	Patents	Span
Suwa, JP	2	1987–1988
Tokyo, JP	1	2021