Muhammad I Bashir

US Patent:

20210392103, Dec 16, 2021

Filed:

Aug 27, 2021

Appl. No.:

17/459511

Inventors:

- Overland Park KS, US
John Tayag Susbilla - Milpitas CA, US
Kenneth V. George - Houston TX, US
Muhammad Nauhman Bashir Gora - Irvine CA, US

International Classification:

H04L 12/58
H04W 28/02
H04L 29/06
H04L 12/833
H04L 29/08
H04W 4/12

Abstract:

A wireless User Equipment (UE) generate a Session Initiation Protocol (SIP) message that comprises a SIP header and a user message. The SIP header indicates a priority QoS and the user message indicates a message destination. The wireless UE wirelessly transfers the SIP message to a wireless network and the wireless network transfers the SIP message to a message network. In response to the priority QoS indicated in the SIP header, the message network generates and transfers another SIP message using the priority QoS. The other SIP message comprises another SIP header and the user message.

US Patent:

20210082457, Mar 18, 2021

Filed:

Nov 30, 2020

Appl. No.:

17/107637

Inventors:

- San Jose CA, US
Muhammad ASIF BASHIR - San Jose CA, US
Petrus Antonius VAN DER HEIJDEN - Cupertino CA, US
Terence LAM - Cupertino CA, US
Yaguang WEI - Pleasanton CA, US

International Classification:

G11B 5/31

Abstract:

The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a main pole, a trailing shield, and a MAMR stack including at least one magnetic layer. The magnetic layer has a surface facing the main pole, and the surface has a first side at a media facing surface (MFS) and a second side opposite the first side. The length of the second side is substantially less than the length of the first side. By reducing the length of the second side, the area to be switched at a location recessed from the MFS is reduced as a current flowing from the main pole to the trailing shield or from the trailing shield to the main pole. With the reduced area of the magnetic layer, the overall switch time of the magnetic layer is decreased.

US Patent:

20210027808, Jan 28, 2021

Filed:

Jul 23, 2019

Appl. No.:

16/520250

Inventors:

- San Jose CA, US
Muhammad Asif Bashir - San Jose CA, US
Hamid Balamane - Portola Valley CA, US
Petrus VanDerHeijden - Cupertino CA, US
Barry Cushing Stipe - San Jose CA, US

International Classification:

G11B 11/105
G11B 11/24
G11B 5/21

Abstract:

A heat-assisted magnetic recording (HAMR) head for recording data in data tracks of a HAMR disk has a gas-bearing slider that supports a near-field transducer (NFT) and a main magnetic pole formed of two layers. The first main pole layer has a cross-track width at the slider's gas-bearing surface (GBS) that tapers down in the direction towards the NFT where the optical spot is formed. The second main pole layer is located away from the NFT and has a substantially wider cross-track width than the first main pole layer so as to provide sufficient magnetic field for writing. Layers of heat sink material are located on the sloped cross-track sides of the tapered first main pole layer to reduce the temperature and thus the likelihood of oxidation of the main pole layers.

US Patent:

20200372929, Nov 26, 2020

Filed:

Aug 12, 2020

Appl. No.:

16/991971

Inventors:

- San Jose CA, US
Yongchul AHN - San Jose CA, US
Susumu OKAMURA - Fujisawa, JP
Zheng GAO - San Jose CA, US
Alexander GONCHAROV - Morgan Hill CA, US
Muhammad ASIF BASHIR - San Jose CA, US
Petrus Antonius VAN DER HEIJDEN - Cupertino CA, US
James Mac FREITAG - Sunnyvale CA, US

International Classification:

G11B 5/31
G11B 5/115
G11B 5/127

Abstract:

The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a trailing shield, a main pole, an STO disposed between the trailing shield and the main pole, and a non-magnetic conductive structure adjacent to the main pole and in contact with the STO. The STO includes an FGL and an SPL, and the FGL is disposed between the main pole and the SPL. The FGL includes a side extending over the main pole and at least a portion of the non-magnetic conductive structure. With the FGL disposed proximate to the main pole and over at least a portion of the non-magnetic conductive structure, current crowding and disturbance from the trailing shield are minimized.

US Patent:

20200327902, Oct 15, 2020

Filed:

Jun 24, 2020

Appl. No.:

16/911083

Inventors:

- San Jose CA, US
Muhammad ASIF BASHIR - San Jose CA, US
James Terrence OLSON - San Jose CA, US
Petrus Antonius VANDERHEIJDEN - Cupertino CA, US

International Classification:

G11B 5/31
G11B 5/11
G11B 5/127
G11B 5/235
G11B 5/23

Abstract:

A magnetic recording head is disclosed having a main pole, a shield hot seed layer positioned at a first side of the main pole, a first material positioned at both a second side and a third side of the main pole, the first material connected to the main pole, a second material positioned adjacent to the first material on the second side and the third side of the main pole, the second material comprised of a spin torque layer, a third material positioned adjacent to the second material on the second side and the third side of the main pole, a fourth material positioned adjacent to the third material on the second side and the third side of the main pole and a side shield connected on an exterior side of the fourth material.

US Patent:

20200227076, Jul 16, 2020

Filed:

Mar 30, 2020

Appl. No.:

16/835198

Inventors:

- San Jose CA, US
Muhammad ASIF BASHIR - San Jose CA, US

International Classification:

G11B 5/35
G11B 5/31
G11B 5/39
G11B 5/60
G11B 5/127
G11B 5/11
G11B 5/23

Abstract:

A microwave-assisted magnetic recording (MAMR) write head has a spin-torque oscillator (STO) and a ferromagnetic compensation layer between the write pole and trailing shield. The compensation layer is separated from the free layer by a nonmagnetic barrier layer that prevents spin-polarized electrons from the free layer from reaching the compensation layer. The compensation layer may be located between the write pole and the free layer. Electrons become spin-polarized by the compensation layer and are reflected back from the write pole across a nonmagnetic spacer layer. This causes the magnetization of the compensation layer to flip and become antiparallel to the magnetization of the free layer. The compensation layer thus generates a DC offset field that compensates for the negative effect of the DC shunting field from the free layer.

US Patent:

20190318760, Oct 17, 2019

Filed:

Mar 5, 2019

Appl. No.:

16/293481

Inventors:

- San Jose CA, US
Muhammad ASIF BASHIR - San Jose CA, US
Petrus Antonius VAN DER HEIJDEN - Cupertino CA, US
Terence LAM - Cupertino CA, US
Yaguang WEI - Pleasanton CA, US

International Classification:

G11B 5/31

Abstract:

The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a main pole, a trailing shield, and a MAMR stack including at least one magnetic layer. The magnetic layer has a surface facing the main pole, and the surface has a first side at a media facing surface (MFS) and a second side opposite the first side. The length of the second side is substantially less than the length of the first side. By reducing the length of the second side, the area to be switched at a location recessed from the MFS is reduced as a current flowing from the main pole to the trailing shield or from the trailing shield to the main pole. With the reduced area of the magnetic layer, the overall switch time of the magnetic layer is decreased.

US Patent:

20190244634, Aug 8, 2019

Filed:

Feb 14, 2019

Appl. No.:

16/276480

Inventors:

- San Jose CA, US
Muhammad ASIF BASHIR - San Jose CA, US
James Terrence OLSON - San Jose CA, US
Petrus Antonius VAN DER HEIJDEN - Cupertino CA, US

International Classification:

G11B 5/23
G11B 5/11

Abstract:

A magnetic recording head is disclosed having a main pole, a shield hot seed layer positioned at a first side of the main pole, a first material positioned at both a second side and a third side of the main pole, the first material connected to the main pole, a second material positioned adjacent to the first material on the second side and the third side of the main pole, the second material comprised of a spin torque layer, a third material positioned adjacent to the second material on the second side and the third side of the main pole, a fourth material positioned adjacent to the third material on the second side and the third side of the main pole and a side shield connected on an exterior side of the fourth material.