Patents by Inventor Yutaka Mitsuo

Yutaka Mitsuo 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: 6294230
    Abstract: The present invention relates to spherical laminated particles each comprising a core particle and a laminate part disposed on a surface of the core particle, wherein the laminate part has a compressive modulus which is smaller than that of the core particle. These spherical laminated particles have a large compressive strength and is excellent in the recovery from a deformation by an arbitrary load, when the load is removed afterwward, as compared with conventional elastic particles composed of a single substance. Therefore, the use of these spherical laminated particles as spacers minimizes the difference in extent of displacement of spacer particles attributed to the difference in load on individual spacer particles caused by, for example, the waviness of a substrate for liquid crystal display cell during the manufacturing of the liquid crystal display cell, so that the cell gap uniformity can be ensured.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: September 25, 2001
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Tsuguo Koyanagi, Kazuhiro Nakayama, Yutaka Mitsuo, Mitsuru Nakai, Michio Komatsu