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Inventor

Yoshihiro Umemura

Inventor
Kyoto, JP

Overview

4→
Patents
1987–1994
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A61Lprimary
A61LMethods or apparatus for sterilising materials or objects in general25%
C08JWorking-up17%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients17%
A01NPreservation of bodies of humans or animals or plants or parts thereof8%
A61FFilters implantable into blood vessels8%
C08LCompositions of macromolecular compounds8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,283,090'Portable urine or ostomy bag'19944,902,503'Antimicrobial latex composition'19904,696,672'Bladder control device'19874,675,347'Antimicrobial latex composition'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1994Patents assigned to UNITIKA LTD (3)· patent assignee history
1987Patents assigned to UNITAKA LTD (1)· patent assignee history
1987–1994Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNITIKA LTD31987–1994
UNITAKA LTD11987
Locations
LocationPatentsSpan
Kyoto, JP41987–1994