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Inventor

Hiroshi Umehara

Inventor
Sunto-gun, JP

Overview

5→
Patents
1992–2011
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A61Pprimary
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations33%
C07DHeterocyclic compounds33%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
7,956,060'Pyrimidine derivative compound'20117,919,517'Indazole derivatives'20117,470,717'Indazole derivatives'20085,948,592'Water-soluble photoresist composition'19995,128,231'Negative photoresist composition comprising a photosensitizer of a polyhalogen compound'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1999Patents assigned to FUJI CHEM IND CO LTD (2)· patent assignee history
1992Patents assigned to OKI ELECTRIC IND CO LTD (1)· patent assignee history
1992Based in Tokyo, JP· patent location history
1999Based in Tokorozawa, JP· patent location history
2008Patents assigned to KYOWA HAKKO KOGYO KK (1)· patent assignee history
2008–2011Based in Sunto-gun, JP· patent location history
2011Patents assigned to KYOWA HAKKO KIRIN CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI CHEM IND CO LTD21992–1999
KYOWA HAKKO KIRIN CO LTD22011
KYOWA HAKKO KOGYO KK12008
OKI ELECTRIC IND CO LTD11992
Locations
LocationPatentsSpan
Sunto-gun, JP32008–2011
Tokorozawa, JP11999
Tokyo, JP11992