Patents by Inventor Hongtao Ma

Hongtao Ma 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).

  • Publication number: 20110021885
    Abstract: A subdural electro-optical sensor system may include a substrate to which is attached an array of electrodes, light emitters, and light detectors. The sensor system may be sufficiently thin, flexible, sterile and biocompatible to be positioned subdurally.
    Type: Application
    Filed: May 5, 2008
    Publication date: January 27, 2011
    Applicants: Cornell Research Foundation, Inc., Georgetown University
    Inventors: Hongtao Ma, Theodore H. Schwartz, Jian-Young Wu
  • Publication number: 20110012352
    Abstract: A wind farm (10) may include a plurality of variable speed wind turbines (12, 14, 16). A centralized controller (50) may be configured to selectively adjust a respective electrical output power from each of the wind turbines at least during an underfrequency condition. The controller may include a monitor (52) configured to monitor a grid frequency value relative to at least a first threshold value. A deviation of the grid frequency value beyond the first threshold value is indicative of the underfrequency condition. The controller further includes a control unit (54) configured to effect a step response to the electrical output power of the wind turbine in a direction selected to counteract the underfrequency condition.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Inventors: Robert J. Nelson, John D. Amos, Hongtao Ma
  • Publication number: 20100137125
    Abstract: To improve stability of catalytic performance, an aromatizing catalyst for converting lower hydrocarbons into aromatic compounds is regenerated. A regeneration process of the aromatizing catalyst according to the present invention includes the steps of: (a) reacting the aromatizing catalyst with a hydrogen gas in an atmosphere containing the hydrogen gas after using the aromatizing catalyst in an aromatizing reaction for converting lower hydrocarbons into aromatic compounds; (b) decreasing a temperature of the atmosphere containing the hydrogen gas reacted with the aromatizing catalyst, by supplying one of an inert gas and a reducing gas to the atmosphere; (c) reacting the aromatizing catalyst reacted with this inert gas, with an oxidizing gas; and (d) reacting the aromatizing catalyst reacted with the oxidizing gas, with a reducing gas.
    Type: Application
    Filed: March 17, 2008
    Publication date: June 3, 2010
    Applicant: MEIDENSHA CORPORATION
    Inventors: Hongtao Ma, Yuji Ogawa
  • Patent number: 7715867
    Abstract: The present invention provides a mobile communication terminal comprising a wireless communication module and a host, wherein the wireless communication module further comprises a first interface connector and a module case; the host reserves positions for the insertion of the wireless communication module, and further comprises a second interface connector corresponding to the first interface connector positioned on the wireless communication module; the wireless communication module is connected to the host via the first interface connector and the second interface connector. The present invention also discloses a wireless communication module which is integrated with a SIM card unit. The present invention can reduce the waste in development and application, and shorten the development period of mobile communication terminals. Thus, the wireless communication module interface is simplified so that the wireless communication module interface is easy to use.
    Type: Grant
    Filed: May 8, 2004
    Date of Patent: May 11, 2010
    Assignee: Lenovo (Beijing) Limited
    Inventors: Zhiqiang He, Jian Jin, Dan Wu, Jianguang Wu, Jun Zhi, Yu Zheng, Wei Zhu, Zhiqian Ma, Hongtao Ma, Xinling Wu, Yongrong Wang, Xinsheng Huang, Jiangwei Zhong
  • Patent number: 7560038
    Abstract: A thin-film forming method, which includes the steps of: (1) holding at least one object in a chamber; (2) depositing a film-forming material on the object; (3) etching the forming material while depositing is conducted. In the present invention, the depositing and etching are controlled to simultaneously conduct. The invention also disclose a system for performing the method.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: July 14, 2009
    Assignee: SAE Magnetics (H.K.) Ltd.
    Inventors: Hongxin Fang, Hongtao Ma, Baiqing Zhang, Baohua Chen, Somen Choudhury
  • Patent number: 7552524
    Abstract: A method for preventing TMR (tunnel magneto-resistance) MRR (magneto-resistance resistance) drop of a slider, comprises steps of: positioning a row bar constructed by a plurality of slider structural bodies on a tray, each slider body having a pole tip with a TMR element; loading the tray into a processing chamber and evacuating the processing chamber to a preset pressure; introducing a processing gas containing oxygen gas into the processing chamber; and exposing the slider structural bodies to an etching means in the atmosphere of the processing gas to oxidize a surface of the TMR element to form an oxidation layer thereon. The invention also discloses a method for forming micro-texture on a surface of slider in same process, and a method for forming such a slider.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: June 30, 2009
    Assignee: Sae Magnetics (H.K.) Ltd.
    Inventors: Hongtao Ma, Hongxin Fang, Baohua Chen
  • Publication number: 20080212242
    Abstract: The invention provides a method for preventing TMR MRR drop of a slider, including: positioning a row bar constructed by sliders on a tray, each slider incorporating a TMR element; loading the tray into a processing chamber and evacuating the processing chamber to a predetermined pressure; forming a first etching means; exposing the sliders to the first etching means such that an oxide layer is formed on a surface of the TMR element; forming a second etching means; and exposing the sliders to the second etching means such that the oxide layer is etched to get a reduced thickness. The invention also discloses a method for manufacturing sliders.
    Type: Application
    Filed: January 8, 2008
    Publication date: September 4, 2008
    Applicant: SAE Magnetics (H.K.) Ltd.,
    Inventors: HongTao Ma, BaoHua Chen, XiaoFeng Qiao, Hongxin Fang, WeiWei He
  • Publication number: 20080179285
    Abstract: A wafer holding device for etching process, includes a base pallet; a cover pallet disposed on the base pallet, the cover pallet having at least one receiving hole defined therein; a base pad located on the base pallet and contained in the receiving hole; and a wafer jig placed on the base pad and contained in the receiving hole. At least one gas-diluting recess is formed in a surface of the cover pallet, the surface being spaced away from the base pallet, the gas-diluting recess being communicated with the receiving hole to dilute byproduct gases generated during the etching process. The invention also discloses a method for controlling etch rate of a wafer to be etched during an etching process.
    Type: Application
    Filed: January 25, 2007
    Publication date: July 31, 2008
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Hao Li, HongTao Ma, HongXin Fang, XiaoFeng Qiao
  • Publication number: 20080000075
    Abstract: A method for preventing TMR (tunnel magneto-resistance) MRR (magneto-resistance resistance) drop of a slider, comprises steps of: positioning a row bar constructed by a plurality of slider structural bodies on a tray, each slider body having a pole tip with a TMR element; loading the tray into a processing chamber and evacuating the processing chamber to a preset pressure; introducing a processing gas containing oxygen gas into the processing chamber; and exposing the slider structural bodies to an etching means in the atmosphere of the processing gas to oxidize a surface of the TMR element to form an oxidation layer thereon. The invention also discloses a method for forming micro-texture on a surface of slider in same process, and a method for forming such a slider.
    Type: Application
    Filed: May 16, 2006
    Publication date: January 3, 2008
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Hongtao Ma, Hongxin Fang, Baohua Chen
  • Publication number: 20070226988
    Abstract: A method for forming micro-texture on ABS of a slider, includes steps of: positioning sliders arranged in arrays on a tray, each slider having a pole tip facing upward; loading the tray into a processing chamber, and evacuating the processing chamber to a preset pressure; introducing a mixture gas of inert gas and hydrocarbon gas into the processing chamber, and ionizing the mixture gas to produce ion beams; exposing the sliders to the ion beam for etching so as to form micro-texture with two-step structure on the ABS of the slider. The invention also discloses a method of manufacturing a slider having micro-texture.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 4, 2007
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: HongXin Fang, HongTao Ma, Yu Ding, Heng Qiao, BaoHua Chen
  • Publication number: 20070049338
    Abstract: The present invention provides a mobile communication terminal comprising a wireless communication module and a host, wherein the wireless communication module further comprises a first interface connector and a module case; the host reserves positions for the insertion of the wireless communication module, and further comprises a second interface connector corresponding to the first interface connector positioned on the wireless communication module; the wireless communication module is connected to the host via the first interface connector and the second interface connector. The present invention also discloses a wireless communication module which is integrated with a SIM card unit. The present invention can reduce the waste in development and application, and shorten the development period of mobile communication terminals. Thus, the wireless communication module interface is simplified so that the wireless communication module interface is easy to use.
    Type: Application
    Filed: May 8, 2004
    Publication date: March 1, 2007
    Inventors: Zhiqiang He, Jian Jin, Dan Wu, Jianguang Wu, Jun Zhi, Yu Zheng, Wei Zhu, Zhiqian Ma, Hongtao Ma, Xinling Wu, Yongrong Wang, Zinsheng Huang, Jiangwei Zhong
  • Publication number: 20060060559
    Abstract: A thin-film forming method, which includes the steps of: (1) holding at least one object in a chamber; (2) depositing a film-forming material on the object; (3) etching the forming material while depositing is conducted. In the present invention, the depositing and etching are controlled to simultaneously conduct. The invention also disclose a system for performing the method.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Applicant: SAE Magnetics (H.K.) Ltd.
    Inventors: Hongxin Fang, Hongtao Ma, Baiqing Zhang, Baohua Chen, Somen Choudhury