Inventor
Shunichi Koyanagi
Inventor
Yokohama, JP
Overview
Patents· 10 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 bonds91%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
4,758,639'Process for production of vinyl polymer'19884,757,124'Process for production of vinyl chloride polymer'19884,528,336'Method for preventing polymer scale deposition in polymerization of ethylenically unsaturated monomers'19854,232,141'Method for the preparation of vinyl chloride polymers'19804,180,634'Polymerizing vinyl chloride with lowering of scale formation'19794,173,696'Method for the polymerization of vinyl monomers'19794,136,242'Method for suspension-polymerizing vinyl chloride'19794,105,839'Method for polymerizing ethylenically unsaturated monomers in order to eliminate polymer deposition'19784,090,015'Method for polymerizing dienic monomers'19783,945,958'Method for suspension-polymerizing vinyl chloride'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1988Patents assigned to SHINETSU CHEMICAL CO (10)· patent assignee history
1976–1988Based in Yokohama, JP· patent location history
1978Based in Joetsu-shi, JP· patent location history
1979–1980Based in Ibaragi, JP· patent location history
1979Based in Naoetsu, JP· patent location history
1985Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHINETSU CHEMICAL CO | 10 | 1976–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 3 | 1976–1988 |
| Ibaragi, JP | 3 | 1979–1980 |
| Joetsu-shi, JP | 2 | 1978 |
| Kanagawa, JP | 1 | 1985 |
| Naoetsu, JP | 1 | 1979 |