Patents by Inventor Yongjin Li

Yongjin 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: 7935417
    Abstract: A melt-kneading method for filling material and elastomer or resin, characterized in that a filling material constituted by a filler, and an elastomer or resin (thermoplastic resin or thermosetting resin), are introduced from a material introduction part at the end of a melt-kneading part having a cylinder with a screw and a heater, and the molten elastomer or resin and filling material constituted by a filler are kneaded under the conditions of 1000 to 3000 rpm in the rotation speed of the screw and 1500 to 4500 sec?1 in shear speed to feed the mixture from the rear edge to tip of the screw to be trapped in a space provided at the tip of the screw, after which the mixture is moved from the space to the rear edge of the screw through a hole provided at the center of the screw, with the cycle process performed for a specified period based on recirculation using the screw.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: May 3, 2011
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Hiroshi Shimizu, Yongjin Li
  • Publication number: 20100283000
    Abstract: The present invention provides a novel structure in which a filling material that is a filler is dispersed in an incompatible resin selected from a thermoplastic resin or a thermosetting resin and/or an incompatible elastomer; and use of the novel structure. In a cocontinuous structure formed from a binary system that is selected from an incompatible resin selected from a thermoplastic resin or a thermosetting resin and/or an incompatible elastomer, a filling material that is a filler is dispersed selectively and uniformly in one of the incompatible resin selected from the thermoplastic resin or the thermosetting resin and/or the incompatible elastomer.
    Type: Application
    Filed: July 7, 2008
    Publication date: November 11, 2010
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Hiroshi Shimizu, Yongjin Li
  • Publication number: 20090123731
    Abstract: A melt-kneading method for filling material and elastomer or resin, characterized in that a filling material constituted by a filler, and an elastomer or resin (thermoplastic resin or thermosetting resin), are introduced from a material introduction part at the end of a melt-kneading part having a cylinder with a screw and a heater, and the molten elastomer or resin and filling material constituted by a filler are kneaded under the conditions of 1000 to 3000 rpm in the rotation speed of the screw and 1500 to 4500 sec?1 in shear speed to feed the mixture from the rear edge to tip of the screw to be trapped in a space provided at the tip of the screw, after which the mixture is moved from the space to the rear edge of the screw through a hole provided at the center of the screw, with the cycle process performed for a specified period based on recirculation using the screw.
    Type: Application
    Filed: February 8, 2008
    Publication date: May 14, 2009
    Inventors: Hiroshi SHIMIZU, Yongjin LI
  • Publication number: 20080318318
    Abstract: A melt-kneading method for filling material-containing resin or elastomer includes: a step of preparing a filling material as a filler and a resin or elastomer comprising an incompatible blend; and a step of introducing the filling material-containing resin or elastomer into a material feed part provided at an end of a cylindrical melt-kneading part having a heater and provided with a screw, and then melt-kneading the filling material-containing resin or elastomer under conditions where the rotation speed of the screw is about 600 rpm to about 3,000 rpm and its shear rate is about 900 to about 4,500 sec?1, thereby forming a co-continuous structure comprising the incompatible blend.
    Type: Application
    Filed: May 9, 2008
    Publication date: December 25, 2008
    Inventors: Hiroshi Shimizu, Yongjin Li, Li Zhao
  • Publication number: 20080045657
    Abstract: The invention provides a method of obtaining a compatible resin blend from at least two incompatible resins which are not conventionally blended with each other. The blend of an incompatible resins is dissolved at a molecular level by being melted and sheared under a high shearing rate by rotating a screw without adding a compatibilizer or the like.
    Type: Application
    Filed: August 17, 2006
    Publication date: February 21, 2008
    Applicant: NAT'L INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hiroshi Shimizu, Yongjin Li, Toshiyuki Imoto, Akira Kaito, Hironari Sano