Andy T Tran

US Patent:

7370404, May 13, 2008

Filed:

May 28, 2004

Appl. No.:

10/857168

Inventors:

Hardayal Singh Gill - Palo Alto CA, US
Jinshan Li - San Jose CA, US
Kenneth Donald Mackay - San Jose CA, US
Kouichi Nishioka - Hiratsuka, JP
Andy Cuong Tran - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 5/127

US Classification:

2960308, 2960301, 2960307, 2960313, 2960314, 36032412

Abstract:

A spin valve sensor in a read head has a spacer layer which is located between a self-pinned AP pinned layer structure and a free layer structure. The free layer structure is longitudinally stabilized by first and second hard bias layers which abut first and second side surfaces of the spin valve sensor. The AP pinned layer structure has an antiparallel coupling layer (APC) which is located between first and second AP pinned layers (AP) and (AP). The invention employs a resetting process for setting of the magnetic moments of the AP pinned layers by applying a field at an acute angle to the head surface in a plane parallel to the major planes of the layers of the sensor. The resetting process sets a proper polarity of each AP pinned layer, which polarity conforms to processing circuitry employed with the spin valve sensor.

US Patent:

20030179500, Sep 25, 2003

Filed:

Mar 21, 2002

Appl. No.:

10/104213

Inventors:

Hardayal Gill - Palo Alto CA, US
Andy Tran - Sunnyvale CA, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification:

C23C014/00
G11B005/33

US Classification:

360/240000, 360/313000, 360/314000, 360/325000

Abstract:

A spin valve sensor in a read head has a spacer layer which is located between a self-pinned AP pinned layer structure and a free layer structure. The free layer structure is longitudinally stabilized by first and second hard bias layers which abut first and second side surfaces of the spin valve sensor. The AP pinned layer structure has an antiparallel coupling layer (APC) which is located between first and second AP pinned layers (AP) and (AP). The invention employs a preferential setting of the magnetic moments of the AP pinned layers by applying a field at an acute angle to the head surface in a plane parallel to the major planes of the layers of the sensor. The preferential setting sets a proper polarity of each AP pinned layer, which polarity conforms to processing circuitry employed with the spin valve sensor.

US Patent:

20150305482, Oct 29, 2015

Filed:

Apr 23, 2015

Appl. No.:

14/694964

Inventors:

ANDY THANG TRAN - San Jose CA, US

International Classification:

A46B 5/00
A61C 17/22
A61C 17/34
A46B 5/02

Abstract:

A manual or electrical toothbrush for cleaning teeth and gum pockets, the toothbrush including a neck portion; a brush head connect to one end of a neck portion; and a handle coupled to the neck portion and completely encased with gripping elements for full-gripping.

US Patent:

20140352719, Dec 4, 2014

Filed:

Jun 4, 2013

Appl. No.:

13/910090

Inventors:

ANDY THANG TRAN - San Jose CA, US

International Classification:

A46B 5/02
A46B 9/04

US Classification:

134 6, 151671, 15 221

Abstract:

A toothbrush with secure grip and a method for brushing teeth are disclose, including picking up a toothbrush below the neck portion, a toothbrush head extending from one end of the neck portion, a round/octagon/oval shaped handle, and a grip handle extending from the other end of the neck portion, wherein the grip handle includes an array of gripping elements extending 360 degrees around the grip handle; and brushing a user's teeth and gum pockets.

US Patent:

20140332028, Nov 13, 2014

Filed:

Feb 10, 2014

Appl. No.:

14/177017

Inventors:

ANDY THANG TRAN - San Jose CA, US

International Classification:

A46B 9/04
A46B 5/02

US Classification:

134 6, 151671, 15 221

Abstract:

A toothbrush with secure grip and a method for brushing teeth are disclose, including picking up a toothbrush below the neck portion, a toothbrush head extending from one end of the neck portion, a round/octagon/oval shaped handle, and a grip handle extending from the other end of the neck portion, wherein the grip handle includes an array of gripping elements extending 360 degrees around the grip handle; and brushing a user's teeth and gum pockets. Lights can be provided on the tooth brush to enhance the brushing effectiveness.