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Inventor

Yasusi Umeda

Inventor
Osaka, JP

Overview

3→
Patents
1977–1981
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.

G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices29%
G03GElectrography29%
G03CPhotosensitive materials for photographic purposes14%
H04NPictorial communication, e.g. television14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,288,517'Toner for electrostatic photography containing resin coated silica particles'19814,251,622'Photo-sensitive composition for dry formation of image'19814,044,385'Printing plate production apparatus'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to NIPPON PAINT (1)· patent assignee history
1977–1981Based in Osaka, JP· patent location history
1981Patents assigned to NIPPON PAINT CO LTD (2)· patent assignee history
1981Based in Neyagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON PAINT CO LTD21981
NIPPON PAINT11977
Locations
LocationPatentsSpan
Osaka, JP21977–1981
Neyagawa, JP11981