Patents by Inventor Lu Yishen

Lu Yishen 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).

  • Method of polishing using a polishing agent
    Patent number: 7153196
    Abstract: A polishing agent for polishing a surface of a target object without unduly scratching it includes mother particles and very fine abrading particles which are supported on the surfaces of the mother particles and remain so supported during a polishing process, becoming reattached if removed. Such an agent is produced by adding the mother particles into the abrading particles and stirring them together. In a polishing process, a specified amount of such an agent is supplied onto a lapping plate and a lapping process is carried out while the plate is rotated at a specified rotational speed.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: December 26, 2006
    Assignees: Nihon Microcoating Co., Ltd.
    Inventors: Yasuhiro Tani, Lu Yishen
  • Polishing agent, method of producing same, and method of polishing
    Publication number: 20020061651
    Abstract: A polishing agent for polishing a surface of a target object without unduly scratching it includes mother particles and very fine abrading particles which are supported on the surfaces of the mother particles and remain so supported during a polishing process, becoming reattached if removed. Such an agent is produced by adding the mother particles into the abrading particles and stirring them together. In a polishing process, a specified amount of such an agent is supplied onto a lapping plate and a lapping process is carried out while the plate is rotated at a specified rotational speed.
    Type: Application
    Filed: December 4, 2001
    Publication date: May 23, 2002
    Applicant: Nihon Microcoating Co., Ltd.
    Inventors: Yasuhiro Tani, Lu Yishen