Patents by Inventor Harutsugu Ushiota

Harutsugu Ushiota 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).

  • Patent number: 5030067
    Abstract: The present invention relates to an air compressor assembly. The compressor assembly includes an air tank, a compressor body, and a joining part for joining the air tank and the compressor body. The air tank has an axis therealong. The compressor body adjacent to the tank has an axis therealong for supplying compressed air to the air tank, the axis of the compressor body being disposed parallel to the axis of the tank. The compressor body includes a cylinder head, the cylinder head having an axis therealong, the axis of the cylinder head being disposed perpendicular to the axis of the compressor body and inclined to the tank.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: July 9, 1991
    Assignee: Tokico Limited
    Inventors: Harutsugu Ushiota, Akihiko Hama, Hiroshi Oshigami, Toshio Inoue, Yoshio Konno, Hachiro Nakagawa
  • Patent number: 4938663
    Abstract: A compressor which is provided with a safety device so that it is possible to detect occurrence of a primary accident, for example, breakage of a connecting rod, in the early stage. The compressor has a pressure sensor installed at a predetermined position in the compressor to detect the level of pressure at that position, a memory means for storing the behavior of the pressure change at the predetermined position that is obtained when the compressor is running in a normal state, a means for judging the behavior of the pressure change actually taking place at the predetermined position on the basis of an output from the pressure sensor and making a comparison between the actual pressure change behavior and the pressure change behavior in the normal state that is stored in the memory means, and a means for suspending the compressor when the actual pressure change behavior is different from the pressure change behavior in the normal state.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: July 3, 1990
    Assignee: Tokico Ltd.
    Inventors: Hiroshi Mitsuhashi, Harutsugu Ushiota, Akiharu Odagiri, Gen Kanoh, Susumu Sakamoto
  • Patent number: 4936747
    Abstract: An air compressor includes a crankcase, a cylinder secured to the crankcase, a crankshaft disposed inside the crankcase and adapted to be rotated by a drive means, a piston reciprocatively installed inside the cylinder, and a connecting rod for connecting the crankshaft to the piston. Part of the drive power circuit of the drive means is constructed so as to be cut off when displacement of the constituent members of the compressor other than predetermined displacement occurs and/or when the temperature inside the compressor rises above a predetermined value. Thus the passage of electric current to the drive means is cut off, the compressor being brought to a halt without causing secondary damage to develop.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: June 26, 1990
    Assignee: Tokico Ltd.
    Inventors: Hiroshi Mitsuhashi, Harutsugu Ushiota, Akiharu Odagiri, Gen Kano, Susumu Sakamoto
  • Patent number: 4937325
    Abstract: A monoazo dyestuff composition comprising at least two different individual compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2, independently of each other, are linear or branched alkyl having 1 to 4 carbon atoms and R is linear or branched alkyl having 1 to 5 carbon atoms, and where said individual compounds differ from each other in at least the R moiety. The monoazo dyestuff mixtures are used for the dyeing and printing of hydrophobic fibers such as high molecular weight polyesters of their mixtures with natural fiber material.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: June 26, 1990
    Assignees: Cassella Aktiengesellschaft, Tokico Ltd.
    Inventors: Ulrich Buhler, Klaus Hofmann, Hiroshi Mitsuhashi, Harutsugu Ushiota, Akiharu Odagiri, Gen Kano, Susumu Sakamoto