Inventor
Yoshihiro Tosaki
Inventor
Osaka, JP
Overview
Patents· 19 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 transducer47%
H04NPictorial communication, e.g. television21%
Y10TTechnical subjects covered by former us classification13%
G01RMeasuring electric variables5%
C07DHeterocyclic compounds3%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
H01FMagnets3%
H10NElectric solid-state devices not otherwise provided for3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
7,183,767'Magnetic sensing element, magnetic sensor, and its manufacturing method'20077,145,331'Magnetic sensor having a closed magnetic path formed by soft magnetic films'20066,992,959'Optical disk, method of reproducing and copying optical disk, and method of preventing illegal use of optical disk'20066,791,937'Recordable optical disk'20046,633,534'Optical disk and optical disk drive'20036,614,749'Recordable optical disk'20036,606,290'Recordable optical disk'20036,603,732'Recordable optical disk'20036,603,731'Recordable optical disk'20036,597,649'Recordable optical disk'20036,597,654'Recordable optical disk'20036,590,846'Recordable optical disk'20036,551,682'Metal-containing azo compound and optical recording media'20036,338,888'Optical recording medium and method of information recording/reproduction using the same'20026,287,660'Optical recording medium and its substrate'20015,535,079'Integrated thin film magnetic head'19965,469,317'Thin film magnetoresistive head for magnetic recording and reproducing apparatus'19955,027,245'Magnetic head for multi-track recording having read and write transducers formed by thin-film technology'19915,022,141'Method for manufacturing multiturn thin film coil'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2007Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (18)· patent assignee history
1991–2004Based in Osaka, JP· patent location history
1991–2007Based in Ibaraki, JP· patent location history
2003Patents assigned to YAMADA CHEM CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 18 | 1991–2007 |
| YAMADA CHEM CO | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 10 | 1991–2004 |
| Ibaraki, JP | 9 | 1991–2007 |