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Inventor

Hirofumi Ii

Inventor
Ube, JP

Overview

10→
Patents
1998–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 10 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds63%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
B01DSeparation6%
C07BGeneral methods of organic chemistry6%
PatentTitleYear
10,351,507Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatus20199,656,942'Method of manufacturing diethyl carbonate'20179,174,918'Process for preparing diaryl oxalate'20158,304,585'Production process of 1,6-hexanediol'20127,714,160'Process for producing alkyl nitrite'20106,844,464'Process for producing alkyl nitrite'20056,472,498'Diaryl carbonate product and production of polycarbonate'20025,892,089'Process for preparing diaryl carbonate'19995,731,453'Process for producing a diaryl carbonate'19985,705,677'Diphenyl oxalate-phenol adduct, process for producing the adduct and method of producing diphenyl oxalate from the adduct'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2019Patents assigned to UBE INDUSTRIES (10)· patent assignee history
1998–2019Based in Ube, JP· patent location history
1999–2002Based in Yamaguchi, JP· patent location history
2012–2015Patents assigned to II HIROFUMI (2)· patent assignee history
2012Patents assigned to ITO TOMOYUKI (1)· patent assignee history
2012Patents assigned to KAWAMURA YOSHIKI (1)· patent assignee history
2012Patents assigned to MATSUSHITA TOSHIYUKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UBE INDUSTRIES101998–2019
II HIROFUMIself22012–2015
ITO TOMOYUKI12012
KAWAMURA YOSHIKI12012
MATSUSHITA TOSHIYUKI12012
Locations
LocationPatentsSpan
Ube, JP81998–2019
Yamaguchi, JP21999–2002