Patents by Inventor Kishio Imai

Kishio Imai 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).

  • Lockable pin
    Patent number: 4236439
    Abstract: A lockable pin comprises a ring-like locking element which is cut at a place on the circumference to provide free ends at which it is pivotally attached to the pin body.In use, the pin is inserted in a throughgoing hole formed in a shaft end and the locking element is brought into engagement with a recess formed in the front end of the pin body or with an annular groove formed in the shaft end. The locking element is firmly held in the recess or groove by the elasticity of the locking element itself or by an upward elastic force acting on the pin body.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: December 2, 1980
    Assignee: Sanyo Kiki Kabushiki Kaisha
    Inventor: Kishio Imai