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Inventor

Tooru Tokumaru

Inventor
Oita, JP

Overview

7→
Patents
1976–1997
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds63%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C07DHeterocyclic compounds13%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium13%
PatentTitleYear
5,600,026'Process for production of cresols'19975,442,114'Process for producing aromatic amide compounds'19955,399,791'Process for production of cresols'1995RE034076'Method for producing hydroxy-containing alkylated aromatic compounds'19924,912,264'Method for producing hydroxy-containing alkylated aromatic compounds'19904,769,494'Process for producing O,O-di-lower-alkylchlorothiophosphate'19883,980,662'Process for preparing acid amides'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1997Patents assigned to SUMITOMO CHEMICAL CO (5)· patent assignee history
1976Based in Takatsuki, JP· patent location history
1988–1997Based in Oita, JP· patent location history
1990–1992Based in Ooita, JP· patent location history
1995Patents assigned to SUITOMO CHEMICAL COMPANY LIMIT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO CHEMICAL CO51976–1997
SUITOMO CHEMICAL COMPANY LIMIT11995
Locations
LocationPatentsSpan
Oita, JP41988–1997
Ooita, JP21990–1992
Takatsuki, JP11976