Inventor
Kazumasa Yasuda
Inventor
Sunnyvale, CA, US
Overview
Patents· 21 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%
Y10TTechnical subjects covered by former us classification24%
B24BMachines, devices, or processes for grinding or polishing5%
G04GElectronic time-pieces5%
B23KSoldering or unsoldering3%
B82YSpecific uses or applications of nanostructures3%
G02BOptical elements, systems or apparatus3%
G04BMechanically-driven clocks or watches3%
G04CElectromechanical clocks or watches3%
H01FMagnets3%
PatentTitleYear
9,502,053'Magnetic head for perpendicular magnetic recording with a trailing shield including a plurality of portions different in saturation flux density'20169,495,980'Magnetic head for perpendicular magnetic recording with a coil including two coil portions'20169,406,318'Magnetic head for perpendicular magnetic recording including two side shields and main pole including lower protrusion'20169,251,812'Magnetic head for perpendicular magnetic recording including angled side shield surfaces'20168,900,466'Method of manufacturing a near-field light generator including a waveguide and a plasmon generator'20148,767,347'Magnetic head for perpendicular magnetic recording having two side shields'20148,493,821'Thermally-assisted magnetic recording head including a shield'20138,454,848'Method of manufacturing plasmon generator'20138,456,968'Thermally-assisted magnetic recording head having dual heat sink layers'20138,295,008'Magnetic head for perpendicular magnetic recording having a main pole and a shield'20128,289,649'Magnetic head for perpendicular magnetic recording with shield around main magnetic pole'20127,836,579'Method to protect a GMR head from electrostatic damage during the manufacturing process'20107,513,820'Method and apparatus for producing micro-texture on a slider substrate using chemical and mechanical polishing techniques'20097,296,336'Method to protect a GMR head from electrostatic damage during the manufacturing process'20077,239,488'MR sensor on an insulating substrate and method of manufacture'20077,189,150'System and method for edge blending hard drive head sliders'20076,960,117'Method to eliminate defects on the periphery of a slider due to conventional machining processes'20055,763,108'High saturtion magnetization material and magnetic head fabricated therefrom'19984,126,992'Stem mechanism for a watch'19784,123,896'Digital electronic timepiece'19784,104,864'Electronic timepiece'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Based in Tokyo, JP· patent location history
1998–2016Patents assigned to HEADWAY TECHNOLOGIES INC (9)· patent assignee history
1998–2016Based in Sunnyvale, CA, US· patent location history
2005–2014Patents assigned to SAE MAGNETICS HK LTD (10)· patent assignee history
2007Based in Kwai Fung Crescent, HK· patent location history
2012–2016Patents assigned to ITO HIROYUKI (11)· patent assignee history
2012–2016Patents assigned to SASAKI YOSHITAKA (11)· patent assignee history
2012–2016Patents assigned to YASUDA KAZUMASA (11)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ITO HIROYUKI | 11 | 2012–2016 |
| SASAKI YOSHITAKA | 11 | 2012–2016 |
| YASUDA KAZUMASAself | 11 | 2012–2016 |
| SAE MAGNETICS HK LTD | 10 | 2005–2014 |
| HEADWAY TECHNOLOGIES INC | 9 | 1998–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sunnyvale, California, US | 17 | 1998–2016 |
| Tokyo, JP | 3 | 1978 |
| Kwai Fung Crescent, HK | 1 | 2007 |