Patents by Inventor Toshimasa Kitahara

Toshimasa Kitahara 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).

  • Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles
    Patent number: 6955526
    Abstract: The vacuum generator is capable of quickly and securely holding and releasing a work piece and capable of reducing amount of consuming compressed air. In the vacuum generator, a first nozzle and a second nozzle jet compressed air toward a diffuser nozzle. The second nozzle has a diameter greater than that of the first nozzle. Switching means switches a state of the vacuum generator between a first state, in which a small amount of air sucked from the vacuum port, and a second state, in which a large amount of air is sucked from the vacuum port. The first nozzle, the second nozzle and the diffuser nozzle are serially arranged in that order.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 18, 2005
    Assignee: Nihon Pisco Co., Ltd.
    Inventors: Kiyoyasu Yamazaki, Toshimasa Kitahara, Suminori Masuzawa, Masataka Funahashi
  • Vacuum generator
    Publication number: 20030180154
    Abstract: The vacuum generator is capable of quickly and securely holding and releasing a work piece and capable of reducing amount of consuming compressed air. In the vacuum generator, a first nozzle and a second nozzle jet compressed air toward a diffuser nozzle. The second nozzle has a diameter greater than that of the first nozzle. Switching means switches a state of the vacuum generator between a first state, in which a small amount of air sucked from the vacuum port, and a second state, in which a large amount of air is sucked from the vacuum port. The first nozzle, the second nozzle and the diffuser nozzle are serially arranged in that order.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 25, 2003
    Inventors: Kiyoyasu Yamazaki, Toshimasa Kitahara, Suminori Masuzawa, Masataka Funahashi