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Inventor

Masashi Umemura

Inventor
Tokyo, JP

Overview

4→
Patents
1976–1987
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C07Fprimary
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium15%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents10%
C07CAcyclic or carbocyclic compounds10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
C09KMaterials for miscellaneous applications, not provided for elsewhere10%
C10MLubricating compositions10%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions10%
C11DDetergent compositions10%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
4,692,256'Molybdenum-containing lubricant composition'19874,581,152'Water-soluble coolant for formation of drawn and ironed cans'19864,059,613'Fluorine-containing dicarbamate esters'19773,952,075'Fluorine-containing compounds'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to ASAHI DENKA KOGYO KK (4)· patent assignee history
1976–1987Based in Tokyo, JP· patent location history
1986Patents assigned to TOYO SEIKAN KAISHA LTD (1)· patent assignee history
1986Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI DENKA KOGYO KK41976–1987
TOYO SEIKAN KAISHA LTD11986
Locations
LocationPatentsSpan
Tokyo, JP31976–1987
Saitama, JP11986