Patents Assigned to Kobayashi Gimlet Mfg. Co., Ltd.
  • Patent number: 4948304
    Abstract: A drive tool for a bit including a support portion for supporting a drive article which has an upper part and a lower part of a drive shaft equipped with a handle and a holding part of the bit respectively, a base frame on which the support portion is coupled by a support axle so that it is rotatable back and forth and a bit having its shank held into the holding part, wherein forward-driving force caused by rotation of the drive article allows the operator to accurately judge the boring depth, while an angle scale on the base frame enables the operator to accurately judge the angle of inclination of the hole with respect to the object to be bored.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 14, 1990
    Assignee: Kobayashi Gimlet Mfg. Co., Ltd.
    Inventor: Tsunemi Kobayashi
  • Patent number: D504446
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: April 26, 2005
    Assignee: Kobayashi Gimlet Mfg. Co., Ltd.
    Inventor: Hiroshi Kobayashi
  • Patent number: D559874
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: January 15, 2008
    Assignee: Kobayashi Gimlet Mfg. Co., Ltd.
    Inventor: Yutaka Kobayashi