Patents Represented by Law Firm Koda and Antrolia
  • Patent number: 5178221
    Abstract: An apparatus which gathers earthen cores dug out by a boring machine operates with a main conveyor belt and auxiliary conveyor belt which are partially forced in contact with each other so as to sandwich earthen cores inbetween and transfer the cords to a collecting box. The main conveyor belt is driven by a single drive roller that has axially inclined projecting strips on the end portions so as to prevent the main conveyor belt from shifting in position.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: January 12, 1993
    Assignees: Seirei Kogyo Inc., Kawahara Yanmar Inc.
    Inventors: Yoshinobu Hamawaki, Hirofumi Kawahara
  • Patent number: D327019
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: June 16, 1992
    Assignee: Rhythm Watch Co., Ltd.
    Inventor: Yasuyuki Hiraike