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Inventor

Tugumoto Usui

Inventor
Hino, JP

Overview

6→
Patents
1977–1982
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G03Cprimary
G03CPhotosensitive materials for photographic purposes55%
C07DHeterocyclic compounds36%
C07CAcyclic or carbocyclic compounds9%
PatentTitleYear
4,356,258'Silver halide color photographic material containing yellow coupler'19824,286,053'Process for forming dye images'19814,191,574'Process for forming a photographic magenta dye image'19804,127,413'Method for the addition of photographic addenda'19784,126,462'Process for forming a photographic magenta dye image'19784,009,035'Process for forming cyan dye photographic images'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1982Patents assigned to KONISHIROKU PHOTO IND (6)· patent assignee history
1977–1981Based in Hino, JP· patent location history
1978–1982Based in Hachioji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KONISHIROKU PHOTO IND61977–1982
Locations
LocationPatentsSpan
Hino, JP41977–1981
Hachioji, JP21978–1982