Inventor

Yoshihisa Matsushima

Inventor
Ooi, JP

Overview

7→
Patents
1977–1992
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.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry29%
C07CAcyclic or carbocyclic compounds24%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium19%
B01DSeparation5%
C01GCompounds containing metals not covered by subclasses c01d or c01f5%
C10GCracking hydrocarbon oils5%
D04HMaking textile fabrics, e.g. from fibres or filamentary material5%
G06FElectric digital data processing5%
Y10TTechnical subjects covered by former us classification5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1983Patents assigned to TOA NENRYO KOGYO KK (5)· patent assignee history
1977Based in Ohi, JP· patent location history
1981–1983Based in Ooi, JP· patent location history
1981Based in Ooit, JP· patent location history
1989–1992Patents assigned to TONEN SEKIYUKAGAKU KK (2)· patent assignee history
1989Based in Kanagawa, JP· patent location history
1992Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOA NENRYO KOGYO KK51977–1983
TONEN SEKIYUKAGAKU KK21989–1992
Locations
LocationPatentsSpan
Ooi, JP31981–1983
Yokohama, JP11992
Kanagawa, JP11989
Ooit, JP11981
Ohi, JP11977