Inventor
Wataru Yamagishi
Inventor
Kawasaki, 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 transducer16%
G01MTesting static or dynamic balance of machines or structures14%
Y10TTechnical subjects covered by former us classification12%
H01FMagnets9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B22FWorking metallic powder5%
G01KMeasuring temperature5%
G01VGeophysics5%
H05KPrinted circuits5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
PatentTitleYear
8,202,571'Manufacturing method for magnetic recording medium'20127,768,731'Magnetic recording medium, magnetic storage and method for reproducing information from magnetic recording medium'20107,502,188'Magnetic recording medium, magnetic storage and method for reproducing information from magnetic recording medium'20096,773,782'Magnetic memory medium having a magnetic film laminated on a substrate and a non-magnetic film formed thereon, and method of manufacturing the same'20046,763,311'Shaking test apparatus and method for structures'20046,629,042'Testing system and testing method for structure'20036,586,044'Method for manufacturing a magnetic hard disk having concentric magnetic tracks with flat surface'20036,583,957'Magnetic hard disk having concentric magnetic tracks with flat surface and fabrication method thereof'20036,397,153'Testing system and testing method for structure'20026,341,258'Shaking test apparatus and method for structures'20026,247,348'Apparatus for and method of testing dynamic characteristics of components of vehicle'20016,234,011'Vehicle testing apparatus and method thereof'20016,147,488'Measurement method of time dependent magnetic remanence in a recording medium'20005,676,781'Method of producing a multi-layered ceramic circuit board'19975,287,620'Process of producing multiple-layer glass-ceramic circuit board'19944,925,502'Iron-cobalt type soft magnetic material'19904,710,242'Material for temperature sensitive elements'19874,459,248'Process and apparatus for producing a temperature sensitive element'19844,347,201'Process and apparatus for producing a temperature sensitive element'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–2009Patents assigned to FUJITSU LTD (11)· patent assignee history
1982–1984Based in Yokohama, JP· patent location history
1987–2012Based in Kawasaki, JP· patent location history
1990–2004Based in Ebina, JP· patent location history
2001–2004Patents assigned to HITACHI LTD (6)· patent assignee history
2001–2004Based in Abiko, JP· patent location history
2010–2012Patents assigned to SHOWA DENKO KK (2)· patent assignee history
2012Patents assigned to KODAMA HIROYOSHI (1)· patent assignee history
2012Patents assigned to TANAKA ATSUSHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 11 | 1982–2009 |
| HITACHI LTD | 6 | 2001–2004 |
| SHOWA DENKO KK | 2 | 2010–2012 |
| KODAMA HIROYOSHI | 1 | 2012 |
| TANAKA ATSUSHI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 7 | 1987–2012 |
| Abiko, JP | 6 | 2001–2004 |
| Ebina, JP | 4 | 1990–2004 |
| Yokohama, JP | 2 | 1982–1984 |