Patents by Inventor Yangfang Li

Yangfang Li 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: 11628050
    Abstract: The invention relates to a device (1) for treating objects, in particular dental prosthetics and/or teeth, comprising a receiving volume (3) for receiving a cleaning fluid (5), a plasma source (7) configured to generate a non-thermal plasma (35), wherein the device (1) is configured for mixing a plasma product with the cleaning fluid (5), whereby an activated cleaning fluid can be generated, and wherein the device (1) is configured for using the activated cleaning fluid on an object, in particular on at least one dental prosthesis and/or at least one tooth.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 18, 2023
    Assignee: Terraplasma GmbH
    Inventors: Gregor Morfill, Julia Zimmermann, Tetsuji Shimizu, Yangfang Li, Sylvia Binder, Maximilian Cantzler, Hannes Weilemann
  • Patent number: 10470285
    Abstract: The invention relates to an electrode assembly (5) for generating a non-thermal plasma, comprising a first electrode (7) and a second electrode (9) which are electrically insulated from each other by means of a dielectric element (11) and which are arranged at a distance from each other. The first electrode (7) has a thickness of at least 10 ?m when seen in the direction of the distance between the electrodes (7, 9), and the second electrode (9) has a thickness of at least 1 ?m to maximally 5 ?m or a thickness of at least 5 ?m to maximally 30 ?m when seen in the direction of the distance between the electrodes (7, 9). The dielectric element (11) has a thickness of at least 10 ?m to maximally 250 ?m.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: November 5, 2019
    Assignee: terraplasma GmbH
    Inventors: Gregor Morfill, Tetsuji Shimizu, Yangfang Li
  • Patent number: 10300159
    Abstract: A method for deactivating preferably odor-relevant molecules that is distinguished by the following steps is proposed: generating a plasma; deactivating preferably odor-relevant molecules by the effect of hot electrons of the plasma on the molecules to be deactivated.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 28, 2019
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Gregor Morfill, Tetsuji Shimizu, Julia Zimmermann, Yangfang Li, Bernd Steffes
  • Publication number: 20190076225
    Abstract: The invention relates to a device (1) for treating objects, in particular dental prosthetics and/or teeth, comprising a receiving volume (3) for receiving a cleaning fluid (5), a plasma source (7) configured to generate a non-thermal plasma (35), wherein the device (1) is configured for mixing a plasma product with the cleaning fluid (5), whereby an activated cleaning fluid can be generated, and wherein the device (1) is configured for using the activated cleaning fluid on an object, in particular on at least one dental prosthesis and/or at least one tooth.
    Type: Application
    Filed: February 3, 2017
    Publication date: March 14, 2019
    Inventors: Gregor MORFILL, Julia ZIMMERMANN, Tetsuji SHIMIZU, Yangfang LI, Sylvia BINDER, Maximilian CANTZLER, Hannes WEILEMANN
  • Publication number: 20180228933
    Abstract: The invention relates to an apparatus (1) for producing a plasma, having at least one first electrode (3), at least one second electrode (5), which is arranged at a distance from the first electrode (3), a voltage source (7), which is connected to at least one electrode (3,59) selected from the first electrode (3) and the second electrode (5) such that a potential difference between the at least one first electrode (3) and the at least one second electrode (5) can be produced by the voltage source (7), wherein the at least one first electrode (3) and the at least one second electrode (5) define at least one discharge path (9) for an electrical discharge in a discharge region (11) between the at least one first electrode (3) and the at least one second electrode (5).
    Type: Application
    Filed: July 25, 2016
    Publication date: August 16, 2018
    Inventors: Gregor Morfill, Yangfang Li, Tetsuji Shimizu, Bernd Steffes
  • Publication number: 20180206321
    Abstract: The invention relates to an electrode assembly (5) for generating a non-thermal plasma, comprising a first electrode (7) and a second electrode (9) which are electrically insulated from each other by means of a dielectric element (11) and which are arranged at a distance from each other. The first electrode (7) has a thickness of at least 10 ?m when seen in the direction of the distance between the electrodes (7, 9), and the second electrode (9) has a thickness of at least 1 ?m to maximally 5 ?m or a thickness of at least 5 ?m to maximally 30 ?m when seen in the direction of the distance between the electrodes (7, 9). The dielectric element (11) has a thickness of at least 10 ?m to maximally 250 ?m.
    Type: Application
    Filed: July 21, 2016
    Publication date: July 19, 2018
    Inventors: Gregor Morfill, Tetsuji Shimizu, Yangfang Li
  • Publication number: 20140207053
    Abstract: The invention relates to a device for the plasma treatment of surfaces (47), in particular of skin, having a housing (3), a plasma source (5) allocated to the housing (3), and at least one spacer (21) that is provided on the housing (3) and/or the plasma source (5) in such a manner that a distance (d) between the plasma source (5) and a surface (47) to be treated can be maintained at least in some regions. The device is characterized in that the spacer (21) is designed to be adjustable in order to vary the distance (d) and that the distance (d) can be varied in such a manner that a preferred plasma chemistry can be selected at the location of the surface (47) to be treated.
    Type: Application
    Filed: May 4, 2012
    Publication date: July 24, 2014
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Gregor Morfill, Yangfang Li, Julia Zimmermann, Tetsuji Shimizu
  • Publication number: 20140147333
    Abstract: A method for deactivating preferably odour-relevant molecules that is distinguished by the following steps is proposed: generating a plasma; deactivating preferably odour-relevant molecules by the effect of hot electrons of the plasma on the molecules to be deactivated.
    Type: Application
    Filed: May 4, 2012
    Publication date: May 29, 2014
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Gregor Morfill, Tetsuji Shimizu, Julia Zimmermann, Yangfang Li, Bernd Steffes
  • Publication number: 20140104003
    Abstract: The disclosure provides an operational amplifier circuit, in which a power supply of an amplifying circuit is coupled to a first voltage clamping circuit, and the first voltage clamping circuit clamps a supply voltage of the amplifying circuit when the supply voltage exceeds a normal-operation allowable voltage of the amplifying circuit. The disclosure also provides a method for implementing the operational amplifier circuit. According to the disclosure, the operational circuit may be avoided from subject to an excessive supply voltage, which may damage devices in the amplifying circuit of the operational amplifier.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: Fairchild Semiconductor Corporation
    Inventors: Lei Huang, Hongtao LV, Yangfang Li
  • Patent number: 8605492
    Abstract: A memory device, includes a recording medium; a probe to write a plurality of the signals; a first driving portion to vibratory drive the recording medium; a detecting unit which, when the first driving portion changes a frequency to vibratory drive the recording medium, detects a change in an amplitude of the resonance drive, detects the frequency at which the amplitude becomes maximum as a resonance frequency; and a calculating unit which calculates a timing when the probe writes a plurality of the signals using the resonance frequency; wherein, the first driving portion vibratory drives the recording medium and the probe writes a plurality of the signals.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: December 10, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasushi Tomizawa, Kazuo Watabe, Akihito Ogawa, Yangfang Li, Akihiro Koga
  • Publication number: 20120250428
    Abstract: A memory device, includes a recording medium; a probe to write a plurality of the signals; a first driving portion to vibratory drive the recording medium; a detecting unit which, when the first driving portion changes a frequency to vibratory drive the recording medium, detects a change in an amplitude of the resonance drive, detects the frequency at which the amplitude becomes maximum as a resonance frequency; and a calculating unit which calculates a timing when the probe writes a plurality of the signals using the resonance frequency; wherein, the first driving portion vibratory drives the recording medium and the probe writes a plurality of the signals.
    Type: Application
    Filed: September 19, 2011
    Publication date: October 4, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasushi Tomizawa, Kazuo Watabe, Akihito Ogawa, Yangfang Li, Akihiro Koga