Inventor
Osamu Umekawa
Inventor
Kaizuka, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof30%
C02FTreatment of water, waste water, sewage, or sludge20%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials20%
A61KPreparations for medical, dental or toiletry purposes5%
C08JWorking-up5%
C08LCompositions of macromolecular compounds5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
C10MLubricating compositions5%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions5%
PatentTitleYear
5,017,592'Stable biocide composition for industrial use'19914,647,577'Microbicidal/microbistatic compositions for industrial use employing 4,5-dichloro-1,2-dithiol-3-one and haloacetic acid esters as the active agents'19874,518,610'Microbicidal/microbistatic compositions and use thereof employing mixtures of 4,5-dichloro-1,2-dithiol-3-one and alkylenebisthiocyanate'19854,466,975'Microbicidal/microbistatic compositions for industrial use'19844,409,353'Easily dispersible composition for water soluble polymer'19834,334,957'Microbicidal compositions for industrial use'19824,289,581'Microbicidal slimicide compositions for industrial use'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1987Patents assigned to KATAYAMA CHEMICAL WORKS CO (6)· patent assignee history
1981Based in Takatsuki, JP· patent location history
1982Based in Nago, JP· patent location history
1983–1987Based in Kaizuka, JP· patent location history
1984–1987Patents assigned to YOSHITOMI PHARMACEUTICAL (3)· patent assignee history
1991Patents assigned to UMEKAWA OSAMU (1)· patent assignee history
1991Based in Nagose, Kaizuka-shi, Osaka 597, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KATAYAMA CHEMICAL WORKS CO | 6 | 1981–1987 |
| YOSHITOMI PHARMACEUTICAL | 3 | 1984–1987 |
| UMEKAWA OSAMUself | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kaizuka, JP | 4 | 1983–1987 |
| Nagose, Kaizuka-shi, Osaka 597, JP | 1 | 1991 |
| Nago, JP | 1 | 1982 |
| Takatsuki, JP | 1 | 1981 |