Patents by Inventor Yoshitaka Koishi

Yoshitaka Koishi 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).

  • Method and apparatus for removing deposits adhering on materials
    Patent number: 5504972
    Abstract: The present invention discloses a method and an apparatus for removing deposits from materials. By feeding unidirectional pulsating air pulsating while flowing in one direction, porous member (4), to materials (m) supplied from above the porous member (4) stretched laterally in a main body case (1A) of a removing apparatus main body (1), the deposits from the materials (m) are removed by the action of the unidirectional pulsating air. The apparatus comprises a removing apparatus main body (1) possessing a feed port (5) and a product outlet (11) disposed above a porous member (4) stretched laterally in a main body case (1A), and an air vibration generating device (30) for feeding unidirectional pulsating air pulsating while flowing in one direction, toward the porous member (4) from above the porous member (4).
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: April 9, 1996
    Assignees: Matsui Manufacturing Co., Ltd., Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hiroshi Tada, Yoshitaka Koishi, Yorinobu Takino, Matsui Osamu, Kiyoshi Morimoto, Yoshika Sanada, Teiichi Miwa, Kazue Murata
  • Method for generating a pulsating air and an apparatus to execute the method
    Patent number: 5458458
    Abstract: A method and an apparatus for generating a pulsating air by communicating an air passage intermittently by rotating a valve while feeding air into a casing or discharging air from the casing by a blower connected to a connecting port of the casing. The air passage extends from the connecting port for the blower to a transmitting port of the casing for transmitting a pulsating air. The apparatus for generating a pulsating air is comprised of a casing provided with a connecting port for a blower and a transmitting port for a pulsating air. The connecting port for the blower is connected with a feeding side of the blower or a suction side of the blower. The valve is designed to be operated so as to intermittently communicate the air passage.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: October 17, 1995
    Assignee: Kabushikikaisha Matsui Seisakusho
    Inventors: Hiroshi Tada, Yoshitaka Koishi, Kazue Murata
  • Apparatus for cleaning the inside of a pipe
    Patent number: 5442826
    Abstract: The invention disclosed a method for cleaning a pipe in the inside comprising steps of inserting a pig into a pipe, and reciprocally moving the pig thereafter by aerial vibration to clean the inside of pipe. An apparatus for cleaning a pipe in the inside comprises a pig removably inserted into a pipe from an end side thereof and a vibration generating source for transferring the pig in reciprocal motion by means of aerial motion to clean the inside of pipe.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: August 22, 1995
    Assignees: Matsui Manufacturing Co., Ltd., Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kazue Murata, Hiroshi Tada, Yoshitaka Koishi, Osamu Matsui, Kiyoshi Morimoto, Yoshika Sanada, Teiichi Miwa