Inventor
Shin-ichi Isaoka
Inventor
Minoo, JP
Overview
Patents· 8 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 bonds33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
C02FTreatment of water, waste water, sewage, or sludge17%
A01NPreservation of bodies of humans or animals or plants or parts thereof6%
A61KPreparations for medical, dental or toiletry purposes6%
A61QSpecific use of cosmetics or similar toiletry preparations6%
C08LCompositions of macromolecular compounds6%
D21HPulp compositions6%
PatentTitleYear
4,251,651'Amphoteric polyelectrolyte'19814,221,888'Method of hydrolyzing acrylamide and methacrylamide polymers'19804,164,413'Method for promoting growth of plants with cationic polymers'19794,138,446'Water-soluble high polymers and their preparation'19794,075,183'Preparation of water-soluble high polymers'19783,969,329'Process for producing high molecular weight acrylamide water-soluble polymers by controlling the viscosity of the polymerization reaction medium with a water-miscible organic solvent'19763,957,904'Polymeric flocculant composition'19763,931,122'Method for producing high molecular weight polyacrylamide type resins'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1981Patents assigned to SUMITOMO CHEMICAL CO (8)· patent assignee history
1976Based in Kyoto, JP· patent location history
1978–1980Based in Minoo, JP· patent location history
1981Based in Osaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO CHEMICAL CO | 8 | 1976–1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Minoo, JP | 4 | 1978–1980 |
| Kyoto, JP | 3 | 1976 |
| Osaka, JP | 1 | 1981 |