Inventor
Akio Takashima
Inventor
Kameyama, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds58%
B60CVehicle tyres8%
C08CTreatment or chemical modification of rubbers8%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%
C08LCompositions of macromolecular compounds8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
7,294,680'Method of producing conjugated diene polymers with narrow molecular weight distribution and polymer produced'20076,255,416'Method of producing conjugated diene polymers'20016,130,299'Method for preparing conjugated diene polymer'20005,686,543'Process for producing polybutadiene rubber'19975,086,136'Process for producing high trans low vinyl conjugated diene (co)polymer'19924,463,133'Rubber compositions suitable for use in tire tread'19844,433,109'Styrene-butadiene block copolymer'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1997Patents assigned to JAPAN SYNTHETIC RUBBER CO LTD (4)· patent assignee history
1984Patents assigned to BRIDGESTONE TIRE CO LTD (1)· patent assignee history
1984Based in Yokkaichi, JP· patent location history
1992–2000Based in Kameyama, JP· patent location history
2000–2007Patents assigned to JSR CORP (3)· patent assignee history
2001–2007Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JAPAN SYNTHETIC RUBBER CO LTD | 4 | 1984–1997 |
| JSR CORP | 3 | 2000–2007 |
| BRIDGESTONE TIRE CO LTD | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kameyama, JP | 3 | 1992–2000 |
| Tokyo, JP | 2 | 2001–2007 |
| Yokkaichi, JP | 2 | 1984 |