Patents by Inventor Hironao Kinpara

Hironao Kinpara 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).

  • Machining apparatus with coolant-operated clamp device
    Patent number: 7275899
    Abstract: Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged from an unclamping pressure chamber through an unclamping pressure fluid passage and a second check valve. The resulting movement of the piston downwards brings a clamp member into contact with a workpiece to thereby clamp the workpiece on a table. Thus, a dedicated pressure source for clamping can be dispensed with.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: October 2, 2007
    Assignee: Aisin AW Co., Ltd.
    Inventors: Takao Taniguchi, Shigeharu Ikeda, Minoru Hidaka, Tomoyoshi Sato, Hiroshi Osada, Takao Kobayashi, Hironao Kinpara, Shigeto Noma, Kazutaka Murai, Masato Sakakibara
  • Machining apparatus with coolant-operated clamp device
    Publication number: 20050036845
    Abstract: Machining coolant/lubricant is used to operate a piston of a clamping-side coupler by feeding same via a coolant feed passage to a clamping pressure chamber through a first check valve and a clamping pressure fluid passage. The same coolant/lubricant is discharged from an unclamping pressure chamber through an unclamping pressure fluid passage and a second check valve. The resulting movement of the piston downwards brings a clamp member into contact with a workpiece to thereby clamp the workpiece on a table. Thus, a dedicated pressure source for clamping can be dispensed with.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 17, 2005
    Inventors: Takao Taniguchi, Shigeharu Ikeda, Minoru Hidaka, Tomoyoshi Sato, Hiroshi Osada, Takao Kobayashi, Hironao Kinpara, Shigeto Noma, Kazutaka Murai, Masato Sakakibara