Patents by Inventor Syoji Ito

Syoji Ito 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: 5368216
    Abstract: A capillary-retaining structure for an ultrasonic horn used in a wire bonding apparatus including a stress relief hole formed inside of a capillary attachment hole that is opened at an end portion of the ultrasonic horn. Thus, the capillary retention by the ultrasonic horn is stabilized, and the vibrational characteristics of the ultrasonic horn are also stabilized, thus improving overall bondability in wire bonding. The same effect can be obtained by setting the thickness of a portion between the end surface of the horn and the capillary attachment hole to be thin or by utilizing a bold and nut combination to hold the capillary.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: November 29, 1994
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Mitsuaki Sakakura, Yuji Tanaka, Junkichi Enomoto, Syoji Ito
  • Patent number: 4687804
    Abstract: Exterior body part for an automotive vehicle, such as bumpers and facers, are described, which are made of a thermoplastic resin composition comprising: 100 parts of a block copolymer represented by the formula: A(B-A).sub.n (wherein the symbols are the same as defined before), 40 to 300 parts by weight of a propylene/.alpha.-olefin block copolymer resin, 0 to 50 parts by weight of a softening agent for nonaromatic rubber, and 0 to 200 parts by weight of an ethylene/.alpha.-olefin copolymer rubber. This thermoplastic resin composition has excellent flexibility, heat distortion resistance, mechanical strength, and scratch resistance, and furthermore, exhibits good workability.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: August 18, 1987
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masao Shiraishi, Yoshinori Nishiya, Syoji Ito
  • Patent number: 4086020
    Abstract: A hydraulic machine comprising a runner of the Francis type having a crown ring with a plurality of first and second balance holes. The first balance holes are formed in the crown ring for communicating between a runner crown chamber defined between the crown ring and an upper cover disposed in spaced juxtaposed relation with the crown ring and low pressure sections defined by blades interposed between the crown ring and a shround ring. The second balance holes are formed in the crown ring for communicating between the runner crown chamber and the interior of a runner boss whereby the first and second balance hole means have reverse thrust characteristics with respect to each other.
    Type: Grant
    Filed: July 7, 1976
    Date of Patent: April 25, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Seiichi Tanabe, Syoji Ito