Inventor

Ikunori Sakai

Inventor
Sakai, JP

Overview

21→
Patents
1991–2014
Patent span
Chemistry
Primary field (CPC C)

Patents· 21 as inventor

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

C08Lprimary
C08LCompositions of macromolecular compounds50%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients33%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds15%
C08JWorking-up3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2001Patents assigned to TOYOTA MOTOR CO LTD (8)· patent assignee history
1991–2004Based in Sakai, JP· patent location history
1992–1999Patents assigned to UBE INDUSTRIES (8)· patent assignee history
1996Based in Osaka, JP· patent location history
1998Based in Oosaka-fu, JP· patent location history
2000–2002Patents assigned to GRAND POLYMER CO LTD (3)· patent assignee history
2001–2009Patents assigned to MITSUI CHEMICALS INC (6)· patent assignee history
2004–2009Based in Sodegaura, JP· patent location history
2009–2014Patents assigned to PRIME POLYMER CO LTD (3)· patent assignee history
2012–2014Based in Ichihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYOTA MOTOR CO LTD81991–2001
UBE INDUSTRIES81992–1999
MITSUI CHEMICALS INC62001–2009
GRAND POLYMER CO LTD32000–2002
PRIME POLYMER CO LTD32009–2014
Locations
LocationPatentsSpan
Sakai, JP111991–2004
Sodegaura, JP62004–2009
Ichihara, JP22012–2014
Oosaka-fu, JP11998
Osaka, JP11996