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Inventor

Masatsugu Yoshino

Inventor
Numazu, JP

Overview

5→
Patents
1976–1982
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B01Dprimary
B01DSeparation22%
G03CPhotosensitive materials for photographic purposes22%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%
C09KMaterials for miscellaneous applications, not provided for elsewhere11%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
4,365,032'Monoester compound of 2,2-alkylidene bis(4,6-di-substituted phenol)'19824,205,988'Photochromic method involving an aromatic amine'19804,181,694'Method for producing hollow fibers of acrylonitrile polymers for ultrafilter'19804,094,676'Non-silver salt type photosensitive composition'19783,933,653'Membranes of acrylonitrile polymers for ultrafilter and method for producing the same'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1982Patents assigned to ASAHI CHEMICAL IND (5)· patent assignee history
1976–1980Based in Tokyo, JP· patent location history
1978–1982Based in Numazu, JP· patent location history
1980Based in Fuji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI CHEMICAL IND51976–1982
Locations
LocationPatentsSpan
Numazu, JP21978–1982
Tokyo, JP21976–1980
Fuji, JP11980