Patents by Inventor Masayuki Terayama

Masayuki Terayama 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).

  • Chucking device
    Patent number: 6730172
    Abstract: A chucking device of the present invention includes an annular elastic member sandwiched between an upper and a lower member. A rod is slidable up and down in a bore formed in the upper and lower members and is partly positioned in the elastic member. The rod presses the elastic member radially outward when raised or lowered, thereby causing the chucking device to chuck a hollow, cylindrical base. The elastic member contacts the inner periphery of the base over a minimum of area and surely, closely contacts it for thereby implementing desirable sealing. The chucking device can therefore form a uniform film on the outer periphery of the base.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: May 4, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenji Furuya, Akira Ohkawa, Shoji Tatejima, Yoshihiro Yamaguchi, Masayuki Terayama
  • Chucking device
    Publication number: 20020040681
    Abstract: A chucking device of the present invention includes an annular elastic member sandwiched between an upper and a lower member. A rod is slidable up and down in a bore formed in the upper and lower members and is partly positioned in the elastic member. The rod presses the elastic member radially outward when raised or lowered, thereby causing the chucking device to chuck a hollow, cylindrical base. The elastic member contacts the inner periphery of the base over a minimum of area and surely, closely contacts it for thereby implementing desirable sealing. The chucking device can therefore form a uniform film on the outer periphery of the base.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 11, 2002
    Inventors: Kenji Furuya, Akira Ohkawa, Shoji Tatejima, Yoshihiro Yamaguchi, Masayuki Terayama