Patents by Inventor Jeffery L. Wang

Jeffery L. Wang 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: 7760470
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: July 20, 2010
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Li Xing Wu, Yiu Sing Ho, Jeffery L. Wang, Liu Jun Zhang
  • Patent number: 7733609
    Abstract: A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity, yet each of the components is designable and manufacturable independent of one another, in addition to other advantages over current methods.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: June 8, 2010
    Assignee: Sae Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Kai Wu
  • Patent number: 7701673
    Abstract: A gimbal design for a hard disk drive are disclosed. In one embodiment, a gimbal tongue is supported by a gimbal cross bar coupled to a suspension body by a pair of gimbal struts. A pair of grounding pads are mounted on either side of the leading edge of the gimbal tongue. A first limiter tab is coupled to the leading edge of the gimbal tongue and a second limiter tab is coupled to the trailing edge of the gimbal tongue. Notches on either side of the trailing edge limiter tab increase the strength of the tab. One or more cutouts allow the slider to be electrically coupled to bonding pads on the opposite side of the gimbal tongue. Angled slots at the juncture of the gimbal cross bar and the gimbal tongue relieve stress on the gimbal.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: April 20, 2010
    Assignee: SAE Magnetics (HK) Ltd.
    Inventors: Jeffery L. Wang, Hai Ming Zhou, Chi Hung Yuen, Yen Fu, Hong Tian
  • Patent number: 7600310
    Abstract: A method for mounting a head stack assembly (HSA) circuit assembly is disclosed. A flexible circuit substrate may be coupled to a stiffener. The stiffener may be a metal, such as aluminum, or some other stiff and durable material. The flexible circuit substrate may be made of an organic material and may have a series of electronic leads embedded in the flexible circuit substrate. The flexible substrate may be coupled to the stiffener by an adhesive or laminated onto the stiffener. The stiffener may be mounted onto the actuator arm by soldering or by laser welding.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: October 13, 2009
    Assignee: SAE Magnetics (H.K.) Lts.
    Inventors: Yiu Sing Ho, Hiroshi Fukaya, Kam Fung Yip, Satoshi Yamaguchi, Jeffery L. Wang, Can Hua Chen
  • Publication number: 20090141401
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Application
    Filed: February 4, 2009
    Publication date: June 4, 2009
    Applicant: SAE Magnetics (H.K.) LTD.
    Inventors: Li Xing WU, Yiu Sing HO, Jeffery L. WANG, Liu Jun ZHANG
  • Patent number: 7525768
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: April 28, 2009
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Li Xing Wu, Yiu Sing Ho, Jeffery L. Wang, Liu Jun Zhang
  • Patent number: 7522384
    Abstract: A method for mounting a head stack assembly (HSA) circuit assembly is disclosed. A flexible circuit substrate may be coupled to a stiffener. The stiffener may be a metal, such as aluminum, or some other stiff and durable material. The flexible circuit substrate may be made of an organic material and may have a series of electronic leads embedded in the flexible circuit substrate. The flexible substrate may be coupled to the stiffener by an adhesive or laminated onto the stiffener. The stiffener may be mounted onto the actuator arm by soldering or by laser welding.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: April 21, 2009
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Yiu Sing Ho, Hiroshi Fukaya, Kam Fung Yip, Satoshi Yamaguchi, Jeffery L. Wang, Can Hua Chen
  • Publication number: 20090046391
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 19, 2009
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Li Xing Wu, Yiu Sing Ho, Jeffery L. Wang, Liu Jun Zhang
  • Patent number: 7411763
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: August 12, 2008
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Li Xing Wu, Yiu Sing Ho, Jeffery L. Wang, Liu Jun Zhang
  • Patent number: 7299536
    Abstract: A system and method for an improved magnetic head arm assembly (HAA), reducing complexity of design and difficulty of manufacture, is disclosed.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: November 27, 2007
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Liu Jun Zhang
  • Patent number: 7245458
    Abstract: A system and method are disclosed for improving the electrical connection of a hard drive relay flexible circuit assembly to a head-gimbal assembly (HGA) flexure cable. In one embodiment, a flexible circuit assembly is attached to a hard drive coil carriage via a U-shaped connector and is electrically coupled to the HGA flexure cable by a bonding agent, such as an Anisotropic Conductive Film (ACF).
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: July 17, 2007
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Liu Jun Zhang, Guo Hong Lu, Can Hua Chen, Yiu Sing Ho, Jeffery L. Wang
  • Patent number: 7165314
    Abstract: A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity, yet each of the components is designable and manufacturable independent of one another, in addition to other advantages over current methods.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: January 23, 2007
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Kai Wu
  • Patent number: 7142394
    Abstract: A system and method for an improved magnetic head arm assembly (HAA), reducing complexity of design and difficulty of manufacture, is disclosed.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: November 28, 2006
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Liu Jun Zhang
  • Patent number: 6937443
    Abstract: A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity, yet each of the components is designable and manufacturable independent of one another, in addition to other advantages over current methods.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: August 30, 2005
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Kai Wu
  • Patent number: 6847507
    Abstract: A head actuator mechanism and a method of manufacture for that mechanism are disclosed. The head actuator mechanism includes a head gimbal assembly coupled to the top support face of a bearing assembly and an actuator driving mechanism coupled to the opposite support face. The head gimbal assembly includes an actuator arm and a load beam, the actuator arm being mounted to the top support face. The actuator driving assembly includes a driving coil and a coil holder frame. The driving coil is positioned in a magnetic field created by a magnetic block and yoke.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 25, 2005
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Jeffery L. Wang, Chi Hung Yuen, Liu Jun Zhang, Ji Yang, Yiu Sing Ho
  • Publication number: 20040250412
    Abstract: A head actuator mechanism and a method of manufacture for that mechanism are disclosed. The head actuator mechanism includes a head gimbal assembly coupled to the top support face of a bearing assembly and an actuator driving mechanism coupled to the opposite support face. The head gimbal assembly includes an actuator arm and a load beam, the actuator arm being mounted to the top support face. The actuator driving assembly includes a driving coil and a coil holder frame. The driving coil is positioned in a magnetic field created by a magnetic block and yoke.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 16, 2004
    Inventors: Jeffery L. Wang, Chi Hung Yuen, Liu Jun Zhang, Ji Yang, Yiu Sing Ho
  • Publication number: 20040237289
    Abstract: A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity, yet each of the components is designable and manufacturable independent of one another, in addition to other advantages over current methods.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 2, 2004
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Kai Wu
  • Publication number: 20040228039
    Abstract: A method and apparatus for electrically coupling a slider to a controller circuit are disclosed. In one embodiment, a pre-amplifier with an integrated electrical connector (I-connector) may be connected via an electrical trace to a slider and via a head stack assembly flexible circuit to a control circuit. The pre-amplifier may have two parallel series of spring probe claws, two parallel series of contact pegs, two slots, or a slot and a rotary cam.
    Type: Application
    Filed: January 9, 2004
    Publication date: November 18, 2004
    Inventors: Li Xing Wu, Yiu Sing Ho, Jeffery L. Wang, Liu Jun Zhang
  • Publication number: 20040200889
    Abstract: A system and method are disclosed for improving hard drive actuator lead attachment. In one embodiment, an actuator board is coupled to an actuator flexible cable by a bonding agent, such as an anisotropic conductive film (ACF). In one embodiment, an actuator flexible cable is coupled to one or more actuator coil leads, such as by solder bump bonding, and the flexible cable/actuator coil coupling is embedded in an actuator frame, such as by polymer injection molding.
    Type: Application
    Filed: December 19, 2003
    Publication date: October 14, 2004
    Inventors: Yiu Sing Ho, Guo Hong Lu, Can Hua Chen, Yuan Neng Luo, Jeffery L. Wang, Liu Jun Zhang
  • Publication number: 20040150917
    Abstract: A system and method for an improved magnetic head arm assembly (HAA), reducing complexity of design and difficulty of manufacture, is disclosed.
    Type: Application
    Filed: August 13, 2003
    Publication date: August 5, 2004
    Inventors: Jeffery L. Wang, Takehiro Kamigama, Chi Hung Yuen, Liu Jun Zhang