Inventor
Hiroshi Ryonai
Inventor
Osaka, JP
Overview
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 transducer42%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%
B82YSpecific uses or applications of nanostructures12%
C23CCoating metallic material8%
G06FElectric digital data processing4%
H01FMagnets4%
H01HElectric switches4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
8,946,579'Touch panel'20156,961,196'Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier'20056,858,328'Master information support'20056,714,367'Master information medium and method of master information recording'20046,611,388'Master information magnetic recorder'20036,606,209'Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier'20036,567,227'Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier'20036,529,341'Magnetic recording/reproduction device using preformat information'20036,347,016'Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier'20026,242,085'Magnetic recording medium and method for producing the same'20015,636,092'Magnetic head having chromium nitride protective film for use in magnetic recording and/or reproducing apparatus and method of manufacturing the same'19975,475,552'Magnetic head having a chromium nitride protective film for use in a magnetic recording and/or reproducing apparatus and a method of manufacturing the same'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2005Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history
1995–2015Based in Osaka, JP· patent location history
2015Patents assigned to PANASONIC CORP (1)· patent assignee history
2015Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 11 | 1995–2005 |
| PANASONIC CORP | 1 | 2015 |
| PANASONIC IP MAN CO LTD | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 12 | 1995–2015 |