Patents by Inventor Fusao Nakamura

Fusao Nakamura 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).

  • Rotary vacuum pump, vacuum device, and pump connection structure
    Patent number: 8292603
    Abstract: A rotary vacuum pump includes a pump casing on which an intake port flange is formed, a rotor which has a rotating side evacuating device and is driven to rotate at high speed inside the pump casing, and a fixing side evacuating device which is provided inside the pump casing and generates an evacuating effect together with the rotating side evacuating device. The intake port flange is fastened to a device subject to evacuating by a bolt. A through-hole is formed in the intake port flange for inserting the bolt and has a diameter larger than that of the bolt. A gap forming device for forming a gap between the bolt and the through-hole in the intake port flange is provided on a matching surface of the through-hole.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: October 23, 2012
    Assignee: Shimadzu Corporation
    Inventors: Fusao Nakamura, Osamu Ashida, Kohei Oue
  • Rotary vacuum pump, vacuum device, and pump connection structure
    Publication number: 20060024184
    Abstract: A rotary vacuum pump includes a pump casing on which an intake port flange is formed, a rotor which has a rotating side evacuating device and is driven to rotate at high speed inside the pump casing, and a fixing side evacuating device which is provided inside the pump casing and generates an evacuating effect together with the rotating side evacuating device. The intake port flange is fastened to a device subject to evacuating by a bolt. A through-hole is formed in the intake port flange for inserting the bolt and has a diameter larger than that of the bolt. A gap forming device for forming a gap between the bolt and the through-hole in the intake port flange is provided on a matching surface of the through-hole.
    Type: Application
    Filed: July 15, 2005
    Publication date: February 2, 2006
    Applicant: SHIMADZU CORPORATION
    Inventors: Fusao Nakamura, Osamu Ashida, Kohei Oue
  • Carbon adsorbent, manufacturing method therefor, gas separation method and device therefor
    Patent number: 5972834
    Abstract: It is possible to increase the amount of nitrogen generated per unit of adsorbent, raise the nitrogen yield, and reduce the manufacturing cost for nitrogen by using, as an adsorbent for the separation of nitrogen, molecular sieving carbon obtained by successively conducting a halogenation treatment, a dehalogenation treatment, and a pore adjustment treatment on a carbonized charcoal. By using activated carbon obtained by successively conducting a halogenation treatment, a dehalogenation treatment, and an activation treatment on a carbonized charcoal, as an adsorbent for carbon dioxide and methane, it is possible to improve the amount adsorbed.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: October 26, 1999
    Assignee: Nippon Sanso Corporation
    Inventors: Takushi Ohsaki, Takashi Inui, Katsuyoshi Yanagita, Masayoshi Hayashida, Nobuyasu Tomita, Fusao Nakamura, Satoshi Sawaguchi, Akira Wakaizumi, Hiroyuki Miyake