Patents by Inventor Youichiro Tani

Youichiro Tani 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).

  • Process and apparatus for the extraction and purification of DNA
    Patent number: 5824224
    Abstract: An object of the present invention is to carry out the extraction and purification of DNA in a short period of time. This object is accomplished by DNA extraction and purification apparatus illustrated in the drawing. This apparatus includes a pipetting unit which can be horizontally moved along a rail by means of a transfer device. This apparatus also includes tube racks which can be moved horizontally and vertically. In these tube racks are disposed filter tubes (not shown) for the extraction and purification of DNA. Moreover, a waste liquid vat and a recovery vat are disposed below these tube racks. The waste liquid vat and the recovery vat are each provided with a suction port (not shown) to be connected to a vacuum pump.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: October 20, 1998
    Assignee: Tomy Seiko Co., Ltd.
    Inventors: Masatoshi Fujishiro, Akio Togashi, Youichiro Tani, Takamaro Ishii
  • Process and apparatus for the extraction and purification of DNA
    Patent number: 5645723
    Abstract: An object of the present invention is to carry out the extraction and purification of DNA in a short period of time. This object is accomplished by DNA extraction and purification apparatus illustrated in the drawing. This apparatus includes a pipetting unit which can be horizontally moved along a rail by means of a transfer device. This apparatus also includes tube racks which can be moved horizontally and vertically. In these tube racks are disposed filter tubes (not shown) for the extraction and purification of DNA. Moreover, a waste liquid vat and a recovery vat are disposed below these tube racks. The waste liquid vat and the recovery vat are each provided with a suction port (not shown) to be connected to a vacuum pump.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: July 8, 1997
    Assignee: Tomy Seiko Co., Ltd.
    Inventors: Masatoshi Fujishiro, Akio Togashi, Youichiro Tani, Takamaro Ishii
  • Transcutaneous electric nerve stimulater
    Patent number: 4949721
    Abstract: In a transcutaneous electric nerve stimulater in which a frequency of an output pulse varies with a lapse of time, a pulse width of the output pulse is increased when the frequency becomes to be smaller and is reduced when the frequency becomes to be greater. Furthermore, a pulse amplitude of the output pulse is increased when the frequency becomes to be smaller and is minimized when the frequency becomes to be greater.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: August 21, 1990
    Assignees: Omron Tateisi Electronics co., Ito Co., Ltd.
    Inventors: Mamoru Toriu, Ikuo Onishi, Youichiro Tani, Nobuo Ogiwara, Hiroshi Tanikoshi, Mitsuru Kitamura