Patents by Inventor Kazuhiro Tokitsu

Kazuhiro Tokitsu 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: 5417542
    Abstract: A method and an apparatus for carrying a workpiece for improving efficiency in a workpiece carrying operation. In the apparatus, a moving member having a workpiece holding member is driven with a linear motion in a horizontal plane along a carrier passage, and the workpiece holding member is driven with a revolutional motion in a vertical plane around a revolution axis displaced from a center of the workpiece holding member, while the workpiece holding member maintains an orientation in which a holder holding the workpiece points downwards. The holder of the workplece holding member is controlled to sequentially carry out holding of the workpiece and releasing of the workpiece at lowest positions of the workpiece holding member in the revolutional motion, so as to realize a continuous workpiece carrying operation.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 23, 1995
    Assignees: Japan Tobacco, Kabushiki Kaisha Toshiba
    Inventors: Hisao Suzuki, Kazuhiro Tokitsu, Makoto Kasahara, Kiyoe Imai, Kouichi Yumita, Tadashi Munakata, Yoshinobu Ishikawa, Etuo Minamihama, Takatomo Izume, Yasuharu Ujiie, Masamichi Kato
  • Patent number: 5234304
    Abstract: A method and an apparatus for workpiece installation capable of carrying out workpiece installation operation without a stopping of a rotational motion of a rotatable table member. In the apparatus, rotatable drum is continuously rotated while workpiece carrier member, provided along a circumference of the rotatable drum, for carrying a workpiece from a workpiece supply station to a workpiece installation station, which is capable of spinning on the circumference while carrying the workpiece, is controlled such that the workpiece carrier member spins while the rotatable drum rotates so as to move along a prescribed trajectory which is preferably a cycloidal or quasi-cycloidal trajectory, and that the workpiece is picked up by the workpiece carrier member at a prescribed pick-up position on the workpiece supply station and released at a prescribed installation position on the workpiece installation station.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: August 10, 1993
    Assignees: Japan Tobacco Inc., Kabushiki Kaisha Toshiba
    Inventors: Yutaka Okumoto, Kenji Koshiba, Hisao Suzuki, Kazuhiro Tokitsu, Makoto Kasahara, Kaoru Watanabe, Kiyoe Imai, Susumu Simada, Koichi Yumita, Takatomo Izume, Tadashi Munaakata, Yoshinobu Ishikawa, Akira Sawakata, Yasuharu Ujiie