PH

Petrus Antonius Van Der Heijden

WT Western Digital Technologies: 35 patents #46 of 3,180Top 2%
HB Hgst Netherlands, B.V.: 14 patents #42 of 972Top 5%
ST Seagate Technology: 12 patents #462 of 4,626Top 10%
HG HGST: 6 patents #305 of 1,677Top 20%
📍 Cupertino, CA: #174 of 6,989 inventorsTop 3%
🗺 California: #4,767 of 386,348 inventorsTop 2%
Overall (All Time): #31,541 of 4,157,543Top 1%
67
Patents All Time

Issued Patents All Time

Showing 1–25 of 67 patents

Patent #TitleCo-InventorsDate
12315538 Magnetic recording head with assisting electric current in trailing shield Alexander Goncharov, Muhammad Asif Bashir, Yunfei Ding, Zhigang Bai, James Terrence Olson 2025-05-27
12249358 Magnetic recording devices having external alternating current sources Muhammad Asif Bashir, James Terrence Olson, Alexander Goncharov, Zhigang Bai, Yunfei Ding 2025-03-11
12148452 Current distal to media facing surface Muhammad Asif Bashir, Suping Song, Yaguang Wei, Terence Lam 2024-11-19
12057145 Magnetic recording heads having one or more dusting layers for magnetic recording devices Muhammad Asif Bashir, Alexander Goncharov 2024-08-06
11900971 Magnetic recording head with assisting electric current in trailing shield Alexander Goncharov, Muhammad Asif Bashir, Yunfei Ding, Zhigang Bai, James Terrence Olson 2024-02-13
11894026 Magnetic recording head having leads over the trailing shield for assisting electric currents Alexander Goncharov, Muhammad Asif Bashir, Yunfei Ding, Zhigang Bai, James Terrence Olson 2024-02-06
11881237 Cross track current design for energy assisted magnetic recording Muhammad Asif Bashir, Edward Hin Pong Lee, Amanda Baer, Aron Pentek, Zhigang Bai +3 more 2024-01-23
11869548 Magnetic recording devices having external alternating current sources Muhammad Asif Bashir, James Terrence Olson, Alexander Goncharov, Zhigang Bai, Yunfei Ding 2024-01-09
11862207 MAMR stack shape optimization for magnetic recording Venkatesh Chembrolu, Muhammad Asif Bashir, Terence Lam, Yaguang Wei 2024-01-02
11854584 Current assisted HAMR magnetic writer Muhammad Asif Bashir, Alexander Goncharov, Takuya Matsumoto 2023-12-26
11769522 MAMR recording head with SAF trailing shield notch and/or bump Alexander Goncharov, Muhammad Asif Bashir 2023-09-26
11651791 Heat-assisted magnetic recording (HAMR) head with tapered main pole and heat sink material adjacent the pole Takuya Matsumoto, Muhammad Asif Bashir, Hamid Balamane, Barry Cushing Stipe 2023-05-16
11508401 Magnetic recording devices having cross-track current flow to facilitate downtrack magnetic field enhancements Muhammad Asif Bashir, James Terrence Olson, Alexander Goncharov, Zhigang Bai, Yunfei Ding 2022-11-22
11437060 MAMR stack shape optimization for magnetic recording Venkatesh Chembrolu, Muhammad Asif Bashir, Terence Lam, Yaguang Wei 2022-09-06
11385306 TMR sensor with magnetic tunnel junctions with shape anisotropy Daniele Mauri, Lei Wang, Yuankai Zheng, Christian Kaiser, Chih-Ching Hu +2 more 2022-07-12
11043233 Magnetic write head with dual return pole and tapered main pole Muhammad Asif Bashir, Alexander Goncharov, Barry Cushing Stipe 2021-06-22
10997989 Bilayer hot seed to reduce gap field for magnetic recording heads Muhammad Asif Bashir, Alexander Goncharov 2021-05-04
10957346 Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses Gonçalo Marcos Baião De Albuquerque, Yunfei Ding, Alexander Goncharov, Kuok San Ho, Daniele Mauri +2 more 2021-03-23
10943616 Current-assisted magnetic recording write head with wide conductive element in the write gap Muhammad Asif Bashir, Venkatesh Chembrolu, Alexander Goncharov, Yingjian Chen 2021-03-09
10891977 MAMR recording head with high damping trailing shield seed layer Alexander Goncharov, Muhammad Asif Bashir 2021-01-12
10872627 Reversed mode spin torque oscillator with shaped field generation layer Quang Le, Yongchul Ahn, Susumu Okamura, Zheng Gao, Alexander Goncharov +2 more 2020-12-22
10872626 MAMR stack shape optimization for magnetic recording Venkatesh Chembrolu, Muhammad Asif Bashir, Terence Lam, Yaguang Wei 2020-12-22
10861485 Write heads configured to redirect current Muhammad Asif Bashir, Yaguang Wei, Xinjiang Shen, Terence Lam, Zhigang Bai +6 more 2020-12-08
10839832 MAMR recording head with high damping trailing shield seed layer Alexander Goncharov, Muhammad Asif Bashir 2020-11-17
10839844 Current-assisted magnetic recording write head with wide conductive element in the write gap Muhammad Asif Bashir, Venkatesh Chembrolu, Alexander Goncharov, Yingjian Chen 2020-11-17