Patents by Inventor Kenichirou Sanagi

Kenichirou Sanagi 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).

  • Stone disintegrator apparatus
    Patent number: 4722340
    Abstract: A stone disintegrator apparatus has a probe with discharge electrodes and a power supply circuit for supplying a discharge voltage to the probe for causing discharge between the discharge electrodes. An electrode life detection circuit detects the number of use or discharge operations of the probe so as to determine the remaining life of the discharge electrodes. A discharge inhibit circuit inhibits re-use or discharge of the probe when the life detection circuit detects an end of electrode life.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: February 2, 1988
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Syuichi Takayama, Kowji Tanikawa, Ryouji Masubuchi, Kunio Kinoshita, Minoru Shinozuka, Kenichirou Sanagi, Naoki Uchiyama, Yoshio Shishido