Inventor
Helmut Jakusch
Inventor
Frankenthal, DE
Overview
Patents· 39 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 transducer38%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%
Y10TTechnical subjects covered by former us classification13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C01GCompounds containing metals not covered by subclasses c01d or c01f10%
B22FWorking metallic powder4%
H01FMagnets4%
B82YSpecific uses or applications of nanostructures2%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties2%
C21BManufacture of iron or steel1%
PatentTitleYear
6,936,340'Magnetic recording medium'20056,835,450'Magnetic recording medium'20046,235,368'Magnetic recording medium having a high recording density and its production'20016,231,963'Magnetic recording media'20016,040,041'Magnetic recording medium'20005,569,409'Finely divided acicular magnetic modified chromium dioxide'19965,490,476'Temperature indicator for deep-frozen products'19965,378,383'Process for preparing modified chromium dioxide'19955,153,022'Stochastic orientation of magnetic recording media'19925,050,015'Method and arrangement for reducing wear in a magnetic storage means'19915,047,161'Preparation of isometric cobalt- and titanium-containing magnetic iron oxides'19915,009,877'Stabilization of acicular ferromagnetic chromium dioxide'19915,006,406'Magnetic recording media'19914,933,004'Preparation of acicular ferromagnetic metal particles of substantially iron'19904,826,671'Preparation of acicular .alpha.-Fe.sub.2 O.sub.3'19894,781,851'Preparation of ferromagnetic chromium dioxide'19884,774,072'Preparation of acicular alpha-Fe.sub.2 O.sub.3'19884,764,300'Preparation of finely divided and acicular hexagonal ferrites and their use for the production of magnetic recording media and plastoferrites'19884,755,315'Preparation of cobalt-containing isotropic magnetic iron oxides'19884,755,395'Preparation of acicular cobalt-containing ferrimagnetic iron oxides'19884,729,785'Preparation of acicular ferromagnetic metal particles consisting essentially of iron'19884,650,597'Preparation of finely divided isotropic cobalt-containing ferrite powder'19874,631,140'Ferrimagnetic particles and their preparation'19864,619,777'Preparation of a magnetic dispersion'19864,581,246'Production of magnetic recording media'19864,507,457'Production of magnetic recording media'19854,497,723'Preparation of acicular, ferrimagnetic iron oxides'19854,495,246'Acicular ferromagnetic chromium dioxide particles'19854,439,231'Preparation of acicular ferromagnetic metal particles consisting essentially of iron'19844,420,330'Stabilization of pyrophoric ferromagnetic acicular metal particles consisting essentially of iron'19834,401,643'Preparation of finely divided barium ferrite of high coercivity'19834,296,149'Manufacture of acicular cobalt-containing magnetic iron oxide'19814,271,234'Iron oxide magnetic pigments for the production of magnetic coatings'19814,221,776'Manufacture of acicular ferrimagnetic iron oxides'19804,213,959'Manufacture of acicular, ferrimagnetic iron oxide'19804,178,171'Manufacture of acicular ferromagnetic iron particles'19794,169,912'Iron oxide magnetic pigments for the production of magnetic coatings'19794,048,375'Magnetic recording media of improved mechanical resistance'19774,018,882'Manufacture of gamma-iron (III) oxide'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1992Patents assigned to BASF AG (28)· patent assignee history
1977–1981Based in Ludwigshafen, DE· patent location history
1979–1981Patents assigned to DYNAMIT NOBEL AG (2)· patent assignee history
1979–2005Based in Frankenthal, DE· patent location history
1995–1996Patents assigned to BASF MAGNETICS GMBH (3)· patent assignee history
2000–2001Patents assigned to EMTEC MAGNETICS GMBH (3)· patent assignee history
2004–2005Patents assigned to IMATION CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 28 | 1977–1992 |
| BASF MAGNETICS GMBH | 3 | 1995–1996 |
| EMTEC MAGNETICS GMBH | 3 | 2000–2001 |
| DYNAMIT NOBEL AG | 2 | 1979–1981 |
| IMATION CORP | 2 | 2004–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frankenthal, DE | 35 | 1979–2005 |
| Ludwigshafen, DE | 4 | 1977–1981 |