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Inventor

Ryuichi Kawakami

Inventor
Kanagawa, JP

Overview

3→
Patents
1982–1992
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television40%
G04GElectronic time-pieces20%
G05BControl or regulating systems in general20%
H01JElectric discharge tubes or discharge lamps20%
PatentTitleYear
5,138,435'CRT-matrix display with indexing and stair step vertical deflection waveform.'19925,057,739'Matrix array of cathode ray tubes display device'19914,318,181'Timer display apparatus'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1992Patents assigned to SONY CORP (3)· patent assignee history
1982–1992Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP31982–1992
Locations
LocationPatentsSpan
Kanagawa, JP31982–1992