Inventor
Yonghua Chen
Inventor
Edina, MN, US
Overview
Patents· 41 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 transducer25%
B82YSpecific uses or applications of nanostructures13%
G01RMeasuring electric variables8%
H10NElectric solid-state devices not otherwise provided for7%
Y10TTechnical subjects covered by former us classification7%
H01FMagnets4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
C21DModifying the physical structure of ferrous metals3%
H01LSemiconductor devices3%
H05HPlasma technique3%
PatentTitleYear
10,857,389Proton therapy system based on compact superconducting cyclotron2020D0903866Microneedling pen202010,823,942Zoom lens and optical instrument202010,614,840Reader with shape optimized for higher SNR202010,390,418Beam energy dispersion adjusting mechanism for superconducting proton cyclotron201910,375,815Method for adjusting particle orbit alignment by using first harmonic in cyclotron2019D0848367Tattoo machine terminal201910,121,993Frequency dependent light emitting devices20189,905,810'Frequency dependent light emitting devices'20189,899,050'Multiple layer FePt structure'20189,880,232'Magnetic sensor manufacturing'20189,773,517'Dual writer head design'20179,697,852'Single coil turn data writer'20179,520,151'Multiple layer FePt structure'20169,491,348'Imaging lens and imaging apparatus'20169,316,340'Actively driven spiral pipeline robot'20169,286,918'Write head with coil structure aligned with yoke'20169,218,824'Data writer with tapered side shield sidewalls'20159,159,340'Coil structure for write head'20159,082,428'Write head with coil structure aligned with yoke'20158,955,549'Waterway switch device'20158,919,380'Sliding switch outlet mechanism'20148,896,972'Magnetic read head with a read function feature'20148,830,625'Data writer with tapered side shield sidewalls'20148,724,265'Trapezoidal back bias and trilayer reader geometry with predetermined magnetization shape'20148,724,252'Transducer head with multiple read sensors'20148,675,319'Data reader with heusler alloy reference lamination'20148,632,897'Multilayer hard magnet and data storage device read/write head incorporating the same'20148,582,251'Magnetic sensor with non-rectangular geometry'20138,582,250'Double biasing for trilayer MR sensors'20138,551,626'CCP-CPP magnetoresistive reader with high GMR value'20138,513,752'Magnetic tunnel junction having coherent tunneling structure'20138,508,880'Transducer head with multiple read sensors'20138,318,030'Magnetic device definition with uniform biasing control'20128,294,228'Magnetic tunnel junction having coherent tunneling structure'20128,248,737'Magnetic sensor including an element for generating signals related to resistance changes'20128,238,062'Magnetoresistive reader with demagnetization flux guide'20128,238,063'Magnetoresistive sensor with synthetic antiferromagnetic cap or seed layers'20128,183,653'Magnetic tunnel junction having coherent tunneling structure'20128,133,332'Method for preparing FePt media at low ordering temperature and fabrication of exchange coupled composite media and gradient anisotropy media for magnetic recording'20128,077,424'Transducer design with a sensor close to write pole'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2020Patents assigned to SEAGATE TECHNOLOGY LLC (29)· patent assignee history
2011–2018Patents assigned to CHEN YONGHUA (19)· patent assignee history
2011–2014Patents assigned to GAO KAIZHONG (7)· patent assignee history
2011–2018Based in Edina, MN, US· patent location history
2012–2014Patents assigned to PENG XILIN (6)· patent assignee history
2012–2014Patents assigned to QIU JIAOMING (6)· patent assignee history
2014–2020Based in Bloomington, MN, US· patent location history
2016–2020Based in Tokyo, JP· patent location history
2019–2020Based in Anhui, CN· patent location history
2019–2020Based in Guangzhou, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 29 | 2011–2020 |
| CHEN YONGHUAself | 19 | 2011–2018 |
| GAO KAIZHONG | 7 | 2011–2014 |
| PENG XILIN | 6 | 2012–2014 |
| QIU JIAOMING | 6 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Edina, Minnesota, US | 21 | 2011–2018 |
| Bloomington, Minnesota, US | 7 | 2014–2020 |
| Anhui, CN | 3 | 2019–2020 |
| Guangzhou, CN | 2 | 2019–2020 |
| Tokyo, JP | 2 | 2016–2020 |