Patents by Inventor Kouichi Yokoi

Kouichi Yokoi 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).

  • Publication number: 20170353033
    Abstract: A power system stabilization device for the stabilization control of a power system, includes an indicator calculation unit for calculating an acceleration index, which is an index representing the acceleration of a generator for supplying electric power to the power system, by using the generator output, which is the output of the generator, and the generator phase difference that indicates the temporal change of the phase angle of the generator output; a threshold value determining unit for determining whether or not the acceleration index exceeds a preset threshold value; and a control command unit for generating a control command for control details that constitute a correction to the stabilization control, set in advance for the threshold value, when the acceleration index exceeds the threshold value.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 7, 2017
    Inventors: Eisuke KURODA, Yasuo SATO, Taichirou KAWAHARA, Kouichi HARA, Kouichi YOKOI, Keisuke KATSURAGI, Toshihito ZASHIBO, Takumi MATSUBARA, Makoto KUWABARA
  • Patent number: 5669274
    Abstract: To provide a loading cam device which is capable of ensuring a necessary accuracy, improving the efficiency of the formation of a cam face, and reducing the manufacturing cost. A cam plate is fixedly secured to a chuck rotationally driven by a main shaft. A cutter is axially placed on one surface of the cam plate. A holder holding the cutter is axially displaced in synchronism with the rotation of the chuck to make an irregularity conforming with the cross-sectional configuration of the cam face. In addition, a header is displaced in the diametrical directions of the chuck to make an irregularity throughout.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: September 23, 1997
    Assignee: NSK Ltd.
    Inventors: Kouichi Yokoi, Takashi Yoshikai, Masami Tanaka, Hideki Hashitani
  • Patent number: 4588822
    Abstract: Disclosed are novel physiologically active substance SS 12538, process for its preparation and a novel microorganism producing the same.The novel physiologically active substance SS 12538 is represented by the following formula (I): ##STR1## in which R represents a hydrogen atom, a methyl group or an ethyl group. SS 12538 is obtained by inoculating a novel strain S 12538 in a nutrient-containing medium and cultivating aerobically.SS 12538 has excellent vasodilating action and antibiotic action against a certain gram positive bacteria and dermatophytes.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: May 13, 1986
    Assignee: SS Pharmaceutical Co., Ltd.
    Inventors: Junji Oono, Kenichi Yano, Junichi Sato, Tadayuki Kouda, Yoichiro Ogawa, Kouichi Yokoi, Toshiaki Nakashima