Inventor

Job-Werner Hartmann

Inventor

Ludwigshafen, DE

Overview

12→

Patents

1976–1981

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 transducer36%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%

Y10TTechnical subjects covered by former us classification24%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%

G01RMeasuring electric variables3%

PatentTitleYear

4,243,059'Method and device for determining the homogeneity of magnetic dispersions'1981 4,201,486'Process for the manufacture of magnetic recording media'1980 4,200,678'Flexible multilayer magnetic recording medium'1980 4,109,046'Flexible multi-layer magnetic recording media'1978 4,043,297'Device for the magnetic orientation of magnetic recording media'1977 4,018,967'Magnetic recording tape'1977 4,018,968'Coated magnetic recording media'1977 4,000,336'Production of magnetic recording media'1976 3,996,407'Magnetic recording media'1976 3,995,089'Magnetic recording media'1976 3,959,553'Magnetic discs having metal support and a non-magnetic layer'1976 3,955,037'Magnetic discs having a multi-component binder'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to BASF AG (12)· patent assignee history

1976–1981Based in Ludwigshafen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	12	1976–1981

Locations

Location	Patents	Span
Ludwigshafen, DE	12	1976–1981