Patents by Inventor Daoben Zhu

Daoben Zhu 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: 20140252341
    Abstract: Disclosed are a pyrrolo-pyrroledione-thiophenequinone compound as shown by formula I, a preparation process thereof and the use thereof as an organic semiconductor material. The preparation process for the compound of formula I comprises reacting NaH, an ?-bromine substituted pyrrolo-pyrroledione-thiophene oligomer as shown by formula II and malononitrile sodium salt, in the presence of catalytic Pd(PPh3)4, and then adding to the reaction system saturated bromine water to carry out an oxidation reaction, so as to obtain the compound of formula I. The compound of formula I has a good field effect performance, an electron mobility of above 0.1 cm2V?1s?1, an on/off current ratio up to 105, and is stable in air.
    Type: Application
    Filed: October 10, 2012
    Publication date: September 11, 2014
    Applicant: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Yali Qiao, Jing Zhang, Wei Xu, Daoben Zhu
  • Patent number: 8471021
    Abstract: Sulfur containing heterocycle-fused naphthalenetetracarboxylic acid diimide derivatives represented by formula (I) are disclosed, in which, R1 and R2 are C1-C30 and C1-C12 linear alkyl or branched alkyl, respectively; R3 is H or halogen atom. The preparation method of the derivatives and the use thereof in manufacture of organic thin film field effect transistor or organic solar batteries are also disclosed.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: June 25, 2013
    Assignees: Shanghai Institute Of Organic Chemistry, Chinese Academy Of Sciences, Institute Of Chemistry, Chinese Academy Of Sciences
    Inventors: Xike Gao, Chong-an Di, Daoben Zhu, Yunqi Liu, Hongxiang Li, Biao Jiang
  • Publication number: 20120253045
    Abstract: Sulfur containing heterocycle-fused naphthalenetetracarboxylic acid diimide derivatives represented by formula (I) are disclosed, in which, R1 and R2 are C1-C30 and C1-C12 linear alkyl or branched alkyl, respectively; R3 is H or halogen atom. The preparation method of the derivatives and the use thereof in manufacture of organic thin film field effect transistor or organic solar batteries are also disclosed.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 4, 2012
    Inventors: Xike Gao, Chong-an Di, Daoben Zhu, Yunqi Liu, Hongxiang Li, Biao Jiang
  • Patent number: 8231854
    Abstract: An efficient and cost-effective method for treating carbon nanotubes (CNTs) is provided. The method includes comprising: dispersing said carbon nanotubes in a dispersing medium to prepare a dispersion system; mixing said dispersion system with adsorbent so that type-specific carbon nanotubes contained in said dispersion system are absorbed onto the adsorbent, wherein the adsorbent is modified by a chemical/biological modifier so as to have different adsorption selectivity to carbon nanotubes of different types; and separating the adsorbent from the dispersion system, whereby the type-specific carbon nanotubes adsorbed onto the adsorbent is separated from the carbon nanotubes of another type enriched in the dispersion system; carbon nanotubes produced by the treatment method, and CNTs devices comprising thereof.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: July 31, 2012
    Assignee: Sony Corporation
    Inventors: Hisashi Kajiura, Yongming Li, Xianglong Li, Yunqi Liu, Lingchao Cao, Lei Fu, Dacheng Wei, Yu Wang, Daoben Zhu
  • Publication number: 20090285746
    Abstract: An efficient and cost-effective method for treating carbon nanotubes (CNTs) is provided. The method includes comprising: dispersing said carbon nanotubes in a dispersing medium to prepare a dispersion system; mixing said dispersion system with adsorbent so that type-specific carbon nanotubes contained in said dispersion system are absorbed onto the adsorbent, wherein the adsorbent is modified by a chemical/biological modifier so as to have different adsorption selectivity to carbon nanotubes of different types; and separating the adsorbent from the dispersion system, whereby the type-specific carbon nanotubes adsorbed onto the adsorbent is separated from the carbon nanotubes of another type enriched in the dispersion system; carbon nanotubes produced by the treatment method, and CNTs devices comprising thereof.
    Type: Application
    Filed: November 13, 2008
    Publication date: November 19, 2009
    Applicant: Sony Corporation
    Inventors: Hisashi Kajiura, Yongming Li, Xianglong Li, Yunqi Liu, Lingchao Cao, Lei Fu, Dacheng Wei, Yu Wang, Daoben Zhu