Patents by Inventor Keiichi Asai

Keiichi 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: 6029510
    Abstract: The present invention is related to a rotary throttle position sensor for detecting the position of throttle shaft of internal combustion engine, and aims to increase the reliability in installation on a throttle shaft. The rotor prior to installation is provisionally retained in position to always ensure the initial point of rotation by making a protrusion provided on rotor touch and ride over a protrusion provided on the cover, thereby the rotor is pressed to the case when the cover is assembled on the case.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: February 29, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takeo Nakaie, Keiichi Asai, Kazuyuki Tsujioka, Satoshi Komatsu
  • Patent number: 5654047
    Abstract: An explosion-proof porcelain housing for use in a gas-filled insulating apparatus, comprising a porcelain housing body, and a first and second films. The first film is made of a first insulating material having low hardness and high elasticity, and is bonded to an inner surface of the porcelain housing body. The second film is made of a second insulating material having high hardness and high mechanical strength, and is bonded to an inner surface of the first film. A process for producing such an explosion-proof porcelain housing is also disclosed.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: August 5, 1997
    Assignee: NGK Instulators, Ltd.
    Inventors: Akihiro Watanabe, Keiichi Asai, Yasunori Matsuura, Nagahiro Kawano, Masafumi Sugi
  • Patent number: 5387448
    Abstract: An explosion-proof porcelain housing for a gas-filled insulating apparatus includes a hollow porcelain housing body having a tapered inner surface, and a resin lined on the inner surface of the porcelain housing body. The thickness of the resin lining decreases along the tapered inner surface.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: February 7, 1995
    Assignee: NGK Insulators, Ltd.
    Inventors: Akihiro Watanabe, Keiichi Asai
  • Patent number: 5234713
    Abstract: In a method of lining resins on an inner surface of a porcelain housing, the porcelain housing having a tapered shape is rotated about a rotation axis in such a manner that the rotation axis of a side having a larger inner diameter is inclined upward with respect to a horizontal line, and an inclination angle and/or a rotation number are controlled in accordance with an inner diameter of the porcelain housing corresponding to a nozzle position, and resins are sprayed or flowed on the inner surface of the porcelain housing from a nozzle during rotations of the porcelain housing.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: August 10, 1993
    Assignee: NGK Insulators, Ltd.
    Inventors: Akihiro Watanabe, Keiichi Asai, Yasunori Matsuura, Nagahiro Kawano, Masafumi Sugi
  • Patent number: 4991905
    Abstract: Disclosed is a vehicle construction of an automobile provided with a slide door being used in a front door of an automobile and having an upper side front end positioned at the rear of a lower side front end, roller assemblies provided in an upper side front end, a lower side front end and an intermediate of back end portion, and guide rails for supporting the roller assemblies arranged in an upper, a lower and an intermediate portions of a car body.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: February 12, 1991
    Assignee: Suzuki Motor Company Limited
    Inventors: Tomoyoshi Watanabe, Keiichi Asai
  • Patent number: 4984842
    Abstract: The present invention relates to a car providing a sliding door comprising guide rails mounted along an entry opening formed on the front half section of a car body and a sliding door used as a front door to be slid through a roller assembly to be engaged with each guide rail when it is opened or shut. In this car, the sliding amount of the sliding door is regulated so as to disable the rear end of the sliding door to be projected from the rear end of a car body when it is opened. And, in order to enable the entry opening opening to be fully opened, an auxiliary handle is providced in addition to an outside handle and an inside handle. Further, the invention also relates to improvement of opening or shutting mechanism and structure of the sliding door.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: January 15, 1991
    Assignee: Suzuki Motor Company Limited
    Inventors: Fumihiko Ogawa, Kazunobu Hori, Keiichi Asai, Tomoyoshi Watanabe
  • Patent number: 4976488
    Abstract: The present invention resides in a motor-vehicle having a sliding door, wherein the sliding door is used as a front door of the motor-vehicle, and the sliding door has its front portion formed with an inclined configuration to match the shape of the front pillar, whereas upper, center and lower guide rollers are provided at the sliding door and upper, center and lower guide rails which serve to support these guide rollers are provided along the side panel, and wherein the upper guide rail is provided behind the lower guide rail and the upper guide rail is extended upto an area which is situated more backwardly than the passenger access opening.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: December 11, 1990
    Assignee: Suzuki Motor Company Limited
    Inventors: Keiichi Asai, Chizuko Mochizuki, Kazunobu Hori