Inventor

Tatsuya Otsuka

Inventor
Settsu, JP

Overview

13→
Patents
1989–2007
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds21%
C07DHeterocyclic compounds18%
C01BNon-metallic elements11%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
C09KMaterials for miscellaneous applications, not provided for elsewhere7%
B29CShaping or joining of plastics4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
C08LCompositions of macromolecular compounds4%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
C10MLubricating compositions4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to OTSUKA PHARMA CO LTD (4)· patent assignee history
1989–1990Based in Tokushima, JP· patent location history
1993–2007Patents assigned to DAIKIN IND LTD (8)· patent assignee history
1993–2007Based in Settsu, JP· patent location history
2001Patents assigned to DAIKIN IND INC (1)· patent assignee history
2001Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAIKIN IND LTD81993–2007
OTSUKA PHARMA CO LTD41989–1990
DAIKIN IND INC12001
Locations
LocationPatentsSpan
Settsu, JP81993–2007
Tokushima, JP41989–1990
Osaka, JP12001