Patents by Inventor Yuichi Asai

Yuichi Asai 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: 6073072
    Abstract: Described are apparatus and method for monitoring revolution speed values detected by corresponding revolution speed sensors too determine whether at least any one of an engine revolution speed sensor, a continuously variable transmission input axle revolution speed sensor, and a continuously variable transmission output axle revolution speed sensor has failed according to detected values of the engine revolution speed sensor, the input axle revolution speed sensor, and the output axle revolution speed sensor and a detected value of an instantaneous gear shift ratio when a lock-up mechanism is in a lock-up state. If all of three formulae on predetermined correlations are established, all of the sensors are determined to be normally operated. If any one or two of the three formulae are not established, the failure one of the three sensors is identified. The three correlation formulae are based as follows: 1) N.sub.E =N.sub.PRI ; 2) N.sub.PRI =N.sub.SEC .times.CN; and 3) N.sub.E =N.sub.PRI .times.C.sub.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: June 6, 2000
    Assignees: Nissan Motor Co., Ltd., Aichi Machine Industry, Ltd.
    Inventors: Shigeru Ishii, Yoshihide Shinso, Tateki Jozaki, Yuichi Asai
  • Patent number: 5855793
    Abstract: The invention relates to the treatment of waste water containing a harmful ion such as a heavy metal ion or fluorine ion by the coagulating sedimentation method using an inorganic coagulant such as an iron compound or an aluminum compound. After separating treated water from the sediment (sludge) in which the harmful ion is incorporated in insoluble form, the pH of a mixture of the sediment and water is suitably adjusted to cause elution of the harmful ion from the sediment. Then the sediment is separated from the eluate and reused as an inorganic coagulant. By reusing the sediment in this manner, the waste water treatment is accomplished without producing a large quantity of sludge and the consumption of inorganic coagulant and auxiliary chemicals can be greatly reduced, while the concentration of the harmful ion in the treated water becomes sufficiently low.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: January 5, 1999
    Assignee: NEC Corporation
    Inventors: Kenichi Ikeda, Yuichi Asai, Yuji Arai
  • Patent number: 5750033
    Abstract: The invention relates to the treatment of waste water containing a harmful ion such as a heavy metal ion or fluorine ion by the coagulating sedimentation method using an inorganic coagulant such as an iron compound or an aluminum compound. After separating treated water from the sediment (sludge) in which the harmful ion is incorporated in insoluble form, the pH of a mixture of the sediment and water is suitably adjusted to cause elution of the harmful ion from the sediment. Then the sediment is separated from the eluate and reused as an inorganic coagulant. By reusing the sediment in this manner, the waste water treatment is accomplished without producing a large quantity of sludge and the consumption of inorganic coagulant and auxiliary chemicals can be greatly reduced, while the concentration of the harmful ion in the treated water becomes sufficiently low.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: May 12, 1998
    Assignee: NEC Corporation
    Inventors: Kenichi Ikeda, Yuichi Asai, Yuji Arai
  • Patent number: 4135830
    Abstract: A wire printer printing head comprises a support member, a plurality of printing elements having a print wire with a flap-armature electromagnet and a sound absorbing cover. The printing element are radially and slidably mounted to the support member and adjustable to a mounting position of each printing element with respect to the support member by an eccentric pin. The sound absorbing cover composed of a core plate and sound absorbing material is secured to the support member and surrounds all printing elements.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: January 23, 1979
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukio Hishida, Yuichi Asai, Toshikatsu Kondo, Akira Asai, Atsuo Sakaida, Chiaki Miyazawa
  • Patent number: 4117435
    Abstract: A flap-armature electromagnet comprises a U-shaped yoke, a pole core, a coil, a flap-armature, a compression spring and a coil spring. The flap-armature is rockingly supported on the yoke by means of projections formed at the upper rear end of the yoke and notches formed at both sides of the flap-armature. Each end of the coil spring is connected to each of the projections for pressing the flap-armature on a rocking axis of the flap-armature.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: September 26, 1978
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukio Hishida, Yuichi Asai, Toshikatsu Kondo, Akira Asai, Atsuo Sakaida, Chiaki Miyazawa