Patents by Inventor Qingping Chen

Qingping Chen 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: 20120206859
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of coverage enhancing catalyst followed by application of a conducting polymer layer. Coverage enhancing catalyst is removed after coating and curing.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Inventors: Antony P. Chacko, Qingping Chen, Jin Yang, Phillip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20120206860
    Abstract: A process for preparing a solid electrolytic capacitor comprising application of a non-ionic polyol prior to application of a conducting polymer layer.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Inventors: Qingping Chen, Hong Zhang, Antony P. Chacko, Phillip M. Lessner, Randolph S. Hahn, Yongjian Qiu, Keith R. Brenneman
  • Publication number: 20120063063
    Abstract: A process for forming a solid electrolytic capacitor and an electrolytic capacitor formed by the process. The process includes: providing an anode wherein the anode comprises a porous body and an anode wire extending from the porous body; apply a thin polymer layer onto the dielectric, and forming a dielectric on the porous body to form an anodized anode; applying a first slurry to the anodized anode to form a blocking layer wherein the first slurry comprises a first conducting polymer with an median particle size of at least 0.05 ?m forming a layer of crosslinker on the blocking layer; and applying a layer of a second conducting polymer on the layer of crosslinker.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 15, 2012
    Applicant: Kemet Electronics Corporation
    Inventors: Yongjian Qiu, Randolph S. Hahn, Kristen Key, Qingping Chen
  • Publication number: 20100246096
    Abstract: A process for forming a capacitor. The process includes providing an anode; providing a dielectric on the anode; exposing the anode to a polymer precursor solution comprising monomer, conjugated oligomer and optionally solvent and polymerizing the polymer precursor. The ratio between monomer and conjugated oligomer ranges from 99.9/0.1 to 75/25 by weight. The solvent content in the polymer precursor solution is from 0 to 99% by weight.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 30, 2010
    Inventors: Qingping Chen, Keith R. Brenneman, Yuhong Ma, Yongjian Qiu, Philip M. Lessner, Randy S. Hahn
  • Patent number: 7754276
    Abstract: A method for maintaining quality of monomer during a coating process for intrinsically conductive polymer which suppresses unwanted by-products. A neutralization process using a base or anion exchange resin is used batch-wise or continuous.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: July 13, 2010
    Assignee: KEMET Electronics Corporation
    Inventors: Yongjian Qiu, Qingping Chen, Philip M. Lessner, Randy S. Hahn, Cynthia L. Prince, Keith R. Brenneman
  • Publication number: 20080283409
    Abstract: A process for forming a capacitor. The process includes providing an anode; providing a dielectric on the anode; exposing the anode to a polymer precursor solution comprising monomer, conjugated oligomer and optionally solvent and polymerizing the polymer precursor. The ratio between monomer and conjugated oligomer ranges from 99.9/0.1 to 75/25 by weight. The solvent content in the polymer precursor solution is from 0 to 99% by weight.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Inventors: Qingping Chen, Keith R. Brenneman, Yuhong Ma, Yongjian Qiu, Philip M. Lessner, Randy S. Hahn
  • Publication number: 20080250620
    Abstract: A method for maintaining quality of monomer during a coating process for intrinsically conductive polymer which suppresses unwanted by-products. A neutralization process using a base or anion exchange resin is used batch-wise or continuous.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Inventors: Yongjian Qiu, Qingping Chen, Philip M. Lessner, Randy S. Hahn, Cynthia L. Prince, Keith R. Brenneman
  • Patent number: 7348194
    Abstract: An improved capacitor with an anode with an anode wire and an oxide layer on the surface of the anode. A cathode layer is exterior to the oxide layer. A carbon conductive layer is exterior to the cathode layer wherein the cathode layer comprises 5-75 wt % resin and 25-95 wt % conductor. The conductor has carbon nanotubes. An anode lead is in electrical contact with the anode wire and a cathode lead is in electrical contact with the carbon conductive layer.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 25, 2008
    Assignee: Kemet Electronics Corporation
    Inventors: Antony P. Chacko, Qingping Chen, Randy S. Hahn, John T. Kinard, Philip M. Lessner, Anita Melody, legal representative, Brian J. Melody
  • Publication number: 20070242412
    Abstract: An improved capacitor with an anode with an anode wire and an oxide layer on the surface of the anode. A cathode layer is exterior to the oxide layer. A carbon conductive layer is exterior to the cathode layer wherein the cathode layer comprises 5-75 wt % resin and 25-95 wt % conductor. The conductor has carbon nanotubes. An anode lead is in electrical contact with the anode wire and a cathode lead is in electrical contact with the carbon conductive layer.
    Type: Application
    Filed: May 14, 2007
    Publication date: October 18, 2007
    Inventors: Antony Chacko, Qingping Chen, Randy Hahn, John Kinard, Philip Lessner, Brian Melody
  • Publication number: 20070171596
    Abstract: An improved capacitor with an anode with an anode wire and an oxide layer on the surface of the anode. A cathode layer is exterior to the oxide layer. A carbon conductive layer is exterior to the cathode layer wherein the cathode layer comprises 5-75 wt % resin and 25-95 wt % conductor. The conductor has carbon nanotubes. An anode lead is in electrical contact with the anode wire and a cathode lead is in electrical contact with the carbon conductive layer.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventors: Antony Chacko, Qingping Chen, Randy Hahn, John Kinard, Philip Lessner, Brian Melody, Anita Melody
  • Patent number: 7125429
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: October 24, 2006
    Assignee: Kemet Electronics Corporation
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Patent number: 6845004
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: January 18, 2005
    Assignee: Kemet Electronics Corporation
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Patent number: 6797748
    Abstract: A non-erasable ink composition suitable for use in writing instruments is described comprising an isocyanate five thermoplastic polyurethane resin, a colorant and an organic solvent. The ink composition may also include a second resin, plasticizers, antioxidants, corrosion inhibitors, lubricants, chemical dispersants, and surfactants. The inks of the present invention exhibit a smooth writing performance and non-seepage.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: September 28, 2004
    Assignee: Bic Corporation
    Inventors: Qingping Chen, Michael T. Nowak
  • Patent number: 6798645
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: September 28, 2004
    Assignee: Kemet Electronics Corp.
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Publication number: 20040154149
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Application
    Filed: January 19, 2004
    Publication date: August 12, 2004
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Publication number: 20040157400
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 12, 2004
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Publication number: 20040156165
    Abstract: A method of protecting surface mount capacitors from moisture and oxygen corrosion by applying a thermally curable pre-coat resin to a portion of the terminals of a capacitor and encapsulating the capacitor element(s) with a protective resin. The pre-coat resin is substantially rigid at ambient temperatures and flexible at elevated temperatures and is preferably a lactone-containing epoxy resin. The pre-coat resin may be applied to a solder coating-free portion of the terminals by brush or wiper prior to encapsulating the capacitor element(s) with the protective resin.
    Type: Application
    Filed: January 16, 2004
    Publication date: August 12, 2004
    Inventors: Brian John Melody, John Tony Kinard, Daniel F. Persico, Chris Stolarski, Phillip Michael Lessner, Qingping Chen, Kim Pritchard, Albert Kennedy Harrington, David Alexander Wheeler
  • Patent number: 6742952
    Abstract: A writing medium reservoir that exhibits clear drain of a writing medium, and preferably in which the writing medium is readily visible to the user. A method of making a writing medium reservoir that exhibits clear drain of a writing medium, and preferably in which the writing medium is readily visible to the user. The method may include forming the writing medium reservoir by co-extruding an inner layer and an outer layer. In addition, the present invention relates to a multi-layer tubular structure that exhibits clear drain of a liquid, and preferably in which the relative presence or relative absence of liquid is readily visible to the user.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: June 1, 2004
    Assignee: BIC Corporation
    Inventors: Qingping Chen, Michael T. Nowak
  • Publication number: 20030055127
    Abstract: A non-erasable ink composition suitable for use in writing instruments is described comprising an isocyanate free thermoplastic polyurethane resin, a colorant and an organic solvent. The ink composition may also include a second resin, plasticizers, antioxidants, corrosion inhibitors, lubricants, chemical dispersants, and surfactants. The inks of the present invention exhibit a smooth writing performance and non-seepage.
    Type: Application
    Filed: June 8, 2001
    Publication date: March 20, 2003
    Applicant: BIC Corporation
    Inventors: Qingping Chen, Michael Nowak
  • Patent number: 6517619
    Abstract: A non-aqueous fluorescent ink composition suitable for use in writing instruments is described comprising a soluble fluorescent colorant, a solvent, and an opacifying agent. The ink composition may also include resins, stabilizers, surfactants, lubricants and other inert additives. The fluorescent ink composition exhibits a brilliant appearance in masscolor and when written on paper.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: February 11, 2003
    Assignee: BIC Corporation
    Inventors: Michael T. Nowak, Qingping Chen