Inventor
Hans-Joerg Hartmann
Inventor
Freinsheim, DE
Overview
12→
Patents
1976–1982
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer31%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests31%
Y10TTechnical subjects covered by former us classification26%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C08LCompositions of macromolecular compounds5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
PatentTitleYear
4,357,378'Magnetic recording media'19824,320,171'Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating'19824,180,597'Manufacture of magnetic recording media'19794,152,484'Magnetic recording media'19794,091,143'Magnetic recording media'19784,058,646'Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating'19774,048,375'Magnetic recording media of improved mechanical resistance'19774,046,932'Magnetic recording discs'19774,005,242'Magnetic recording medium containing lubricants'19774,000,336'Production of magnetic recording media'19763,995,089'Magnetic recording media'19763,959,553'Magnetic discs having metal support and a non-magnetic layer'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1982Patents assigned to BASF AG (12)· patent assignee history
1976–1982Based in Freinsheim, DE· patent location history
1977Based in Breinsheim, DT· patent location history
1982Based in Feinsheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 12 | 1976–1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Freinsheim, DE | 10 | 1976–1982 |
| Feinsheim, DE | 1 | 1982 |
| Breinsheim, DT | 1 | 1977 |