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Inventor

Yuichi Tokumoto

Inventor
Chigasaki, JP

Overview

9→
Patents
1993–2006
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds38%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds31%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
B01DSeparation6%
PatentTitleYear
7,126,037'Butene oligomer derivatives having terminal 1,4-butanediol functional groups'20066,476,284'Method of dehalogenating hydrocarbon containing carbon-carbon double bond'20026,462,151'Method of removing and recovering boron trifluoride with metal fluoride and process for polyolefin production using the same'20026,300,444'Process for producing butene polymer'20016,084,144'Method of recovering boron trifluoride complex and process for producing olefin oligomer using the same'20005,457,228'Method for producing lower alkyl acetate'19955,436,402'Method for preparing p-isobutylstyrene'19955,384,426'Process for the preparation of isopropyl acetate'19955,260,477'Method for preparing alpha-(4-isobutylphenyl)propionic acid or its precursor'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2002Patents assigned to NIPPON PETROCHEMICALS CO LTD (7)· patent assignee history
1993–1995Based in Yokohama, JP· patent location history
1995Patents assigned to DAICEL CHEM (2)· patent assignee history
2000Based in Kawasaki, JP· patent location history
2001–2006Based in Chigasaki, JP· patent location history
2006Patents assigned to NIPPON PETROCHEMICALS CO LT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON PETROCHEMICALS CO LTD71993–2002
DAICEL CHEM21995
NIPPON PETROCHEMICALS CO LT12006
Locations
LocationPatentsSpan
Chigasaki, JP42001–2006
Yokohama, JP41993–1995
Kawasaki, JP12000