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Inventor

Yasumasa Yamakoshi

Inventor
Tokyo, JP

Overview

3→
Patents
2002–2009
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds38%
C08LCompositions of macromolecular compounds25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C08CTreatment or chemical modification of rubbers13%
C08JWorking-up13%
PatentTitleYear
7,579,385'Dried porous crumbs of hydrogenated block copolymer'20096,815,509'Method for hydrogenation of polymer'20046,451,964'Method for removing hydrocarbon solvent from solution of hydrogenated block copolymer in hydrocarbon solvent'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2009Patents assigned to ASAHI CHEMICAL IND (3)· patent assignee history
2002–2009Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI CHEMICAL IND32002–2009
Locations
LocationPatentsSpan
Tokyo, JP32002–2009