Patents by Inventor Zhong Xian Wei

Zhong Xian Wei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8801945
    Abstract: A write element for a thermally assisted magnetic head slider includes an air bearing surface facing to a magnetic recording medium; a first magnetic pole, a second magnetic pole, and coils sandwiched between the first and the second magnetic poles; a waveguide for guiding light generated by a light source module mounted on a substrate; and a plasmon unit provided around the first magnetic pole and the waveguide, which has a near-field light generating surface for propagating near-field light to the air bearing surface. The near-field light generating surface of the plasmon unit is apart from the air bearing surface with a first predetermined distance to form a first recess, and the first recess is filled in with a protective layer. The thermally assisted magnetic head slider can prevent the plasmon unit from protruding over the air bearing surface, thereby improving the performance of thermally assisted magnetic head.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 12, 2014
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Natsuo Nishijima, Ryuji Fujii, Hong Tao Ma, Jian Hui Huang, Huan Chao Liang, Zhong Xian Wei
  • Publication number: 20140131309
    Abstract: A write element for a thermally assisted magnetic head slider includes an air bearing surface facing to a magnetic recording medium; a first magnetic pole, a second magnetic pole, and coils sandwiched between the first and the second magnetic poles; a waveguide for guiding light generated by a light source module mounted on a substrate; and a plasmon unit provided around the first magnetic pole and the waveguide, which has a near-field light generating surface for propagating near-field light to the air bearing surface. The near-field light generating surface of the plasmon unit is apart from the air bearing surface with a first predetermined distance to form a first recess, and the first recess is filled in with a protective layer. The thermally assisted magnetic head slider can prevent the plasmon unit from protruding over the air bearing surface, thereby improving the performance of thermally assisted magnetic head.
    Type: Application
    Filed: December 31, 2013
    Publication date: May 15, 2014
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Natsuo NISHIJIMA, Ryuji FUJII, Hong Tao MA, Jian Hui HUANG, Huan Chao LIANG, Zhong Xian WEI
  • Patent number: 8638645
    Abstract: A write element for a thermally assisted magnetic head slider includes an air bearing surface facing to a magnetic recording medium; a first magnetic pole, a second magnetic pole, and coils sandwiched between the first and the second magnetic poles; a waveguide for guiding light generated by a light source module mounted on a substrate; and a plasmon unit provided around the first magnetic pole and the waveguide, which has a near-field light generating surface for propagating near-field light to the air bearing surface. The near-field light generating surface of the plasmon unit is apart from the air bearing surface with a first predetermined distance to form a first recess, and the first recess is filled in with a protective layer. The thermally assisted magnetic head slider can prevent the plasmon unit from protruding over the air bearing surface, thereby improving the performance of thermally assisted magnetic head.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: January 28, 2014
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Natsuo Nishijima, Ryuji Fujii, Hong Tao Ma, Jian Hui Huang, Huan Chao Liang, Zhong Xian Wei
  • Patent number: 7967662
    Abstract: An apparatus for lapping sliders comprises a rotatable lapping plate for lapping elements that are to be formed into sliders, a pushing force adjusting member that has an internal space therein and that extends vertically along an lapping plate axis that is perpendicular to the lapping plate, a pusher for pressing the elements, the pusher being connected to the pushing force adjusting member, and gas supply means for supplying a gas into the internal space, the gas supply means being connected to the pushing force adjusting member. The pushing force adjusting member comprises a first part that includes a connection with the pusher, a second part that includes a coupling between the internal space and the gas supply means, and an axially deformable part that is located between the first part and the second part.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: June 28, 2011
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Masashi Kobayashi, Kiyohiko Abe, Hiroyasu Tsuchiya, Santoso Tan, Zhong Xian Wei, Chun Hua Zhang, Fa Hong Li, Ming Yuan Chen
  • Patent number: 7645182
    Abstract: An apparatus for lapping a slider comprises a lapping head for supporting elements while pressing the elements against a rotating lapping plate, the elements that are to be formed into sliders, a holding mechanism for supporting the lapping head, the holding mechanism having a first engaging member that extends in a vertical direction, a base for supporting the holding mechanism, the base having a second engaging member that extends in the vertical direction, wherein the second engaging member is engaged with the first engaging member to form an internal space therebetween, and a decompressing mechanism for decompressing the internal space. The holding mechanism is subjected to vertically upward force from the decompressed internal space in order to be movably supported by the base in the vertical direction.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 12, 2010
    Assignee: Sae Magnetics (H.K.) Ltd.
    Inventors: Kiyohiko Abe, Masashi Kobayashi, Hiroyasu Tsuchiya, Santoso Tan, Zhong Xian Wei, Chun Hua Zhang, Fa Hong Li, Ming Yuan Chen
  • Publication number: 20080280544
    Abstract: An apparatus for lapping sliders comprises a rotatable lapping plate for lapping elements that are to be formed into sliders, a pushing force adjusting member that has an internal space therein and that extends vertically along an lapping plate axis that is perpendicular to the lapping plate, a pusher for pressing the elements, the pusher being connected to the pushing force adjusting member, and gas supply means for supplying a gas into the internal space, the gas supply means being connected to the pushing force adjusting member. The pushing force adjusting member comprises a first part that includes a connection with the pusher, a second part that includes a coupling between the internal space and the gas supply means, and an axially deformable part that is located between the first part and the second part.
    Type: Application
    Filed: April 28, 2008
    Publication date: November 13, 2008
    Applicant: SAE Magnetics (H.K0) Ltd.
    Inventors: Masashi Kobayashi, Kiyohiko Abe, Hiroyasu Tsuchiya, Santoso Tan, Zhong Xian Wei, Chun Hua Zhang, Fa Hong Li, Ming Yuan Chen
  • Publication number: 20080242203
    Abstract: An apparatus for lapping a slider comprises a lapping head for supporting elements while pressing the elements against a rotating lapping plate, the elements that are to be formed into sliders, a holding mechanism for supporting the lapping head, the holding mechanism having a first engaging member that extends in a vertical direction, a base for supporting the holding mechanism, the base having a second engaging member that extends in the vertical direction, wherein the second engaging member is engaged with the first engaging member to form an internal space therebetween, and a decompressing mechanism for decompressing the internal space. The holding mechanism is subjected to vertically upward force from the decompressed internal space in order to be movably supported by the base in the vertical direction.
    Type: Application
    Filed: March 24, 2008
    Publication date: October 2, 2008
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Kiyohiko Abe, Masashi Kobayashi, Hiroyasu Tsuchiya, Santoso Tan, Zhong Xian Wei, Chun Hua Zhang, Fa Hong Li, Ming Yuan Chen