Inventor
Osamu Kohmoto
Inventor
Ichikawa, JP
Overview
10→
Patents
1980–1994
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 10 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 transducer21%
H01FMagnets21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification17%
B22FWorking metallic powder7%
C01GCompounds containing metals not covered by subclasses c01d or c01f3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
C22CAlloys3%
C23CCoating metallic material3%
H05KPrinted circuits3%
PatentTitleYear
5,302,469'Soft magnetic thin film'19945,229,219'Magnetic recording medium comprising a magnetic layer containing a specified magnetic ferrite powder and having a curie temperature up to 180.degree. C.'19935,049,208'Permanent magnets'19915,022,939'Permanent magnets'19914,836,868'Permanent magnet and method of producing same'19894,621,008'Magnetic recording medium'19864,592,948'Magnetic recording medium'19864,537,832'Magnetic recording medium'19854,410,406'Process for preparing magnetic recording medium'19834,188,211'Thermally stable amorphous magnetic alloy'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1983Patents assigned to TDK ELECTRONICS CO LTD (2)· patent assignee history
1980–1983Based in Tokyo, JP· patent location history
1985–1994Patents assigned to TDK CORP (8)· patent assignee history
1985–1993Based in Ichikawa, JP· patent location history
1989Based in Kamagaya, JP· patent location history
1994Based in Okayama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TDK CORP | 8 | 1985–1994 |
| TDK ELECTRONICS CO LTD | 2 | 1980–1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ichikawa, JP | 6 | 1985–1993 |
| Tokyo, JP | 2 | 1980–1983 |
| Okayama, JP | 1 | 1994 |
| Kamagaya, JP | 1 | 1989 |