Inventor
Kenichiro Yamada
Inventor
Tokyo, JP
Overview
Patents· 90 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 transducer54%
Y10TTechnical subjects covered by former us classification8%
B82YSpecific uses or applications of nanostructures7%
H01FMagnets6%
H10NElectric solid-state devices not otherwise provided for5%
G01RMeasuring electric variables3%
G11CStatic stores3%
G01SRadio direction-finding2%
H01LSemiconductor devices2%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner2%
PatentTitleYear
10,809,321Magnetic sensor and testing device202010,699,979Electronic device202010,438,616Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers201910,413,187Optical scanning device, imaging device, and TOF type analyzer201910,388,350Memory system, semiconductor storage device, and signal processing system201910,236,021Magnetic recording apparatus having magnetic flux control part and magnetic recording head having magnetic flux control part201910,192,572Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers201910,186,284Magnetic head and magnetic recording and reproducing device201910,139,290Optical temperature sensor and method for manufacturing optical temperature sensor201810,139,289Temperature measurement device, light emitting module and temperature measurement method201810,002,637Magnetic recording and reproducing device and method of controlling magnetic recording and reproducing device20189,978,404Magnetic recording head and disk device with the same20189,922,674'Magnetic recording and reproducing device and magnetic recording and reproducing method'20189,885,612'Optical temperature sensor and method of controlling same'20189,886,971'Magnetic recording and reproducing device with stacked body configuration'20189,824,724'Magnetic recording device capable of implementing read after write'20179,824,703'Magnetic recording and reproducing device having magnetic head with first and second reproducing element portions and magnetic reproducing method'20179,799,354'Magnetic recording head and magnetic recording and reproducing device'20179,721,594'Method of manufacturing spin torque oscillator'20179,697,853'Magnetic recording head and magnetic recording and reproducing device'20179,653,103'Magnetic head including spin valve element with first to third terminals in which first current flows between the second terminal and the third terminal, and second current flows to the first terminal and is lower than the first current, magnetic recording and reproducing apparatus, and method of manufacturing magnetic head'20179,589,581'Microwave-assisted magnetic recording head and magnetic recording apparatus including the same'20179,583,134'Magnetic recording and reproducing device'20179,548,079'Magnetic recording and reproducing device and magnetic recording and reproducing method'20179,489,970'Magnetic head and magnetic recording and reproducing apparatus'20169,443,548'Hologram reproducing device and hologram reproducing method'20169,378,756'Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method'20169,373,356'Magnetic recording and reproducing device and magnetic recording and reproducing method'20169,355,659'Microwave assisted magnetic recording head and magnetic recording device having the same'20169,349,389'Magnetic recording head and magnetic recording and reproducing device'20169,330,691'Microwave assisted magnetic head'20169,311,936'Magnetic recording head and disk drive provided therewith'20169,305,577'Magnetic recording head and disk drive provided therewith'20169,275,662'Magnetic head, magnetic recording and reproducing apparatus, and method of manufacturing magnetic head'20169,275,660'Magnetic head having first magnetic shield, stack, side shield, antiferromagnetic layer, and second magnetic shield, magnetic head assembly, magnetic recording and reproducing apparatus, and manufacturing method of magnetic head'20169,208,804'Magnetic head and magnetic recording and reproducing apparatus'20159,208,802'Magnetic recording head and disk drive provided therewith'20159,208,803'Magnetic head, magnetic head assembly, and magnetic recording apparatus'20159,171,558'Magnetic head with multiple reproducing elements each having magnetically coupled free layers, magnetic recording reproducing apparatus and magnetic head manufacturing method'20159,147,411'Magnetic recording and reproducing device'20159,129,617'Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method'20159,111,552'High-frequency oscillation device, magnetic recording head including the same, and disk device'20159,076,463'Magnetic recording head and disk device with the same'20158,995,085'Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method'20158,976,490'Magnetic recording head and disk drive provided therewith'20158,929,031'Spin torque oscillator, method of manufacturing the same, magnetic recording head, magnetic head assembly, and magnetic recording apparatus'20158,810,954'Disk storage apparatus, write control apparatus and write control method'20148,767,346'Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method'20148,755,147'Magnetic head pole including laminated structure having magnetic and nonmagnetic layers'20148,730,616'Magnetic recording head, head gimbal assembly with the same, and disk drive'20148,717,705'Magnetic recording head and magnetic recording apparatus including the same'20148,705,204'Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement'20148,687,321'Magnetic head assembly'20148,687,322'Magnetic recording head and disk drive including the same'20148,675,308'Magnetic recording head with high frequency oscillator and disk drive with the same'20148,654,480'Magnetic head with spin torque oscillator and magnetic recording head'20148,614,861'Magnetic recording head including a high-frequency oscillator and disk drive with the same'20138,564,904'Magnetic head with stacked magnetic layers, magnetic head assembly, and magnetic recording/reproducing apparatus'20138,559,134'Radio frequency magnetic field assisted recording head, head assembly, amd recording apparatus'20138,553,359'Magnetic recording head and magnetic recording/reproducing apparatus using the same'20138,547,662'Magnetic recording head and magnetic recording apparatus'20138,488,373'Spin injection layer robustness for microwave assisted magnetic recording'20138,472,140'Spin oscillator or magnetic recorder including multiple injection layers in the magnetic recording head'20138,467,148'Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus'20138,446,691'Magnetic recording device'20138,400,734'Magnetic recording head and magnetic recording apparatus'20138,325,442'Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus'20128,320,079'Magnetic head assembly and magnetic recording/reproducing apparatus'20128,295,009'Magnetic recording head and magnetic recording apparatus'20128,270,112'Magnetic head with spin oscillation device(s) and magnetic recording device'20128,264,799'Magnetic recording head'20128,238,060'Magnetic recording head and magnetic recording apparatus'20128,238,058'Magnetic recording head, magnetic head assembly, and magnetic recording apparatus'20128,233,230'Method and apparatus for controlling head with spin-torque oscillator in a disk drive'20128,164,854'Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording head'20128,164,997'Optical disc apparatus for conducting information recording or reproduction on an optical disc'20128,154,825'Magnetic recording head and magnetic recording device'20128,139,322'Magnetic recording head with protruding spin torque oscillator'20128,120,875'Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium'20128,081,397'Magnetic head assembly and magnetic recording apparatus'20118,064,244'Thin seeded Co/Ni multilayer film with perpendicular anisotropy for spintronic device applications'20118,027,118'Method and apparatus for controlling head with spin-torque oscillator in a disk drive'20117,957,098'Magnetic recording head and magnetic recording apparatus'20117,791,829'Apparatus for assisting write operation using high frequency magnetic field in disk drive'20107,197,813'Method of accurate evaluation on magnetoresistive read element'20076,876,524'Magnetoresistive transducer having stronger longitudinal bias field'20056,829,122'Magnetic head of a magnetoresistance type having an underlying layer having a laminated structure of a tungsten-group metal layer formed on a tantalum-group metal layer'20046,123,780'Spin valve magnetoresistive head and manufacturing method therefor'20006,094,325'Spin valve head reducing barkhausen noise'20006,046,890'Method for protecting a magnetoresistive head from damage due to electrostatic discharge'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2007Based in Kawasaki, JP· patent location history
2000Based in Kanagawa, JP· patent location history
2010–2020Patents assigned to TOSHIBA KK (78)· patent assignee history
2010–2020Based in Tokyo, JP· patent location history
2011–2015Patents assigned to YAMADA KENICHIRO (31)· patent assignee history
2011–2014Patents assigned to IWASAKI HITOSHI (22)· patent assignee history
2011–2014Patents assigned to TAKAGISHI MASAYUKI (21)· patent assignee history
2011–2014Patents assigned to FUNAYAMA TOMOMI (18)· patent assignee history
2013Based in Minato-ku, JP· patent location history
2018Based in Miyagi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 78 | 2010–2020 |
| YAMADA KENICHIROself | 31 | 2011–2015 |
| IWASAKI HITOSHI | 22 | 2011–2014 |
| TAKAGISHI MASAYUKI | 21 | 2011–2014 |
| FUNAYAMA TOMOMI | 18 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 79 | 2010–2020 |
| Kawasaki, JP | 4 | 2000–2007 |
| Miyagi, JP | 3 | 2018 |
| Kanagawa, JP | 2 | 2000 |
| Minato-ku, JP | 1 | 2013 |