Patents by Inventor Shozo Kawamura

Shozo Kawamura 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).

  • Process for designing rugged pattern on golf ball surface
    Patent number: 9058439
    Abstract: A golf ball 2 has numerous craters 8 on its surface. The craters 8 are arranged randomly. Of the surface of the golf ball 2, a part other than the craters 8 is a land 10. By the craters 8 and the land 10, a rugged pattern is formed on the golf ball 2. A process for designing the rugged pattern includes the steps of: (1) assuming a plurality of states; (2) assuming a large number of cells on a spherical surface; (3) deciding an initial state of each cell; (4) determining whether or not to change a state of the each cell based on states of a plurality of cells located adjacent to the each cell; (5) updating the state of the each cell based on the determination; and (6) assigning a land 10 or a recess to the each cell according to the state of the each cell.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: June 16, 2015
    Assignees: Dunlop Sports Co. Ltd., National University Corporation Toyohashi University of Technology
    Inventors: Hyoungchol Kim, Masahide Onuki, Kaname Yamada, Shozo Kawamura
  • PROCESS FOR DESIGNING RUGGED PATTERN ON GOLF BALL SURFACE
    Publication number: 20090298618
    Abstract: A golf ball 2 has numerous craters 8 on its surface. The craters 8 are arranged randomly. Of the surface of the golf ball 2, a part other than the craters 8 is a land 10. By the craters 8 and the land 10, a rugged pattern is formed on the golf ball 2. A process for designing the rugged pattern includes the steps of: (1) assuming a plurality of states; (2) assuming a large number of cells on a spherical surface; (3) deciding an initial state of each cell; (4) determining whether or not to change a state of the each cell based on states of a plurality of cells located adjacent to the each cell; (5) updating the state of the each cell based on the determination; and (6) assigning a land 10 or a recess to the each cell according to the state of the each cell.
    Type: Application
    Filed: May 1, 2009
    Publication date: December 3, 2009
    Inventors: Hyoungchol Kim, Masahide Onuki, Kaname Yamada, Shozo Kawamura