Inventor

Keigo Nishihira

Inventor
Ube, JP

Overview

36→
Patents
1979–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 36 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds74%
C07DHeterocyclic compounds17%
Y02PClimate change mitigation technologies in the production or processing of goods5%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
PatentTitleYear
6,191,302'Process for producing alkyl nitrite'20016,018,072'Process for producing a diaryl oxalate'20005,922,827'Process for producing a polycarbonate'19995,892,091'Catalyst for decarbonylation reaction'19995,892,089'Process for preparing diaryl carbonate'19995,869,729'Method of producing an ester compound'19995,834,615'Process for producing diaryl carbonate'19985,811,573'Process for producing a diaryl carnonate'19985,731,453'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'19985,648,510'Process for preparation of diaryl carbonate'19975,631,396'Process for continuously producing dimethyl carbonate'19975,534,648'Process for continuously producing dimethyl carbonate'19965,514,829'Process for continuously producing dimethyl carbonate'19965,463,109'Process for preparing carbamates'19955,380,906'Process for preparing carbonic diester'19955,315,032'Method of producing an N-hydroxycarbamate compound'19945,292,917'Process for purifying dimethyl carbonate'19945,276,200'Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-butanone'19945,214,185'Continuous process for preparing dimethyl carbonate'19935,162,563'Process for preparing a diester of carboxylic acid'19925,037,982'Method of purifying 2-methyl-4-amino-5-aminomethylpyrimidine'19914,978,766'Process for producing 2-hydroxymethylene-3,3-dialkoxypropanenitrile alkali metal salt and process for obtaining alcoholic slurry of said compound from its synthetic reaction mixture'19904,892,948'2-methyl-4-amino-5-aminomethylpyrimidine carbonate, process for preparing the same and method of purification of 2-methyl-4-amino-5-aminomethylpyrimidine using the same'19904,539,403'Process for the preparation of a 2-alkyl-4-amino-5-aminomethylpyrimidine'19854,492,792'Process for preparing 4-amino-5-dialkoxy-methylpyrimidine derivatives'19854,467,109'Process for continuous preparation of diester of oxalic acid'19844,461,909'Process for continuously preparing a diester of oxalic acid'19844,421,925'4-Alkoxy-1,3-dioxane-5-carbonitriles and process for preparing the same'1983RE031245'Process for preparing a diester of oxalic acid in the gaseous phase'19834,373,107'Process for preparing N-alkyl-alkylene-diamines'19834,260,810'Process for preparing diesters of dicarboxylic acids'19814,256,908'Process for preparing diesters of malonic acid'19814,229,591'Process for preparing a diester of oxalic acid in the gaseous phase'19804,229,589'Process for preparing a diester of oxalic acid'19804,138,587'Process for the preparation of dialkyl oxalates'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2001Patents assigned to UBE INDUSTRIES (35)· patent assignee history
1979–2001Based in Ube, JP· patent location history
1997–1999Based in Yamaguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UBE INDUSTRIES351979–2001
Locations
LocationPatentsSpan
Ube, JP331979–2001
Yamaguchi, JP31997–1999