Patents by Inventor Keiichi Mori

Keiichi Mori 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: 4393858
    Abstract: A combustion control system having incorporated therein an electronic circuit for driving and controlling a proportional control valve provided on a fuel supply line to control the amount of combustion and thereby maintain the temperature of fluid to be heated by combustion at a constant level even when the amount of the fluid varies per unit time. The output voltage of a bridge circuit including a sensor for detecting the temperature of the fluid as a component is fed to operation amplifiers for differentiating, integrating and proportional amplification to control the control valve with the resulting output. The system is best suited for use in instantaneous water heaters.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: July 19, 1983
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiichi Mori, Yasukiyo Ueda, Keijiro Mori
  • Patent number: 4277558
    Abstract: Silver halide photographic material containing hydroquinones and benzoquinones as anti-stain agents.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: July 7, 1981
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shoji Kikuchi, Toshio Yajima, Kenichi Kishi, Takashi Sasaki, Keiichi Mori, Haruhiko Sato
  • Patent number: 4192680
    Abstract: A process for developing an image-wise exposed light-sensitive silver halide color photographic material comprising developing said material with a solution containing a specified concentration range of bromide ion in the presence of at least one of certain active point substitution type yellow couplers.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: March 11, 1980
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Isamu Fushiki, Atushi Kamitakahara, Keiichi Mori
  • Patent number: 4170339
    Abstract: An electromagnetic valve comprises a magnetic circuit formed by a stationary core and a movable core, or armature pivoted at one end of the stationary core and rotatable continuously between first and second positions with a free end positioned in opposed relation to the other end of the stationary core with an air gap therebetween. The armature is spring biased so as to remain in the first position and carries a valve head for engagement with a valve seat. The opposing ends of the stationary and movable cores are so shaped as to form in the air gap a first working section in which the main magnetic flux generates a vector component transverse to the length of the armature and a second working section in which the main magnetic flux generates a vector component parallel to the length of the armature. The resulting vector makes the angular displacement of the armature linearly proportional to the supply current.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: October 9, 1979
    Assignee: Matsushita Electric Industrial Company
    Inventors: Yasukiyo Ueda, Keijiro Mori, Keiichi Mori, Takashi Tanahashi, Shigeru Shirai
  • Patent number: 4151862
    Abstract: A fluid-flow control valve arrangement comprising valve means operable in different conditions including variable-flow,, constant-flow and zero-flow mode conditions depending upon predetermined ranges of a prescribed operational parameter, the valve arrangement being useful especially for the control of the flow of fuel in a heating device such as a gas-burning water heating device.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: May 1, 1979
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasukiyo Ueda, Keiichi Mori, Keijiro Mori
  • Patent number: 4105453
    Abstract: A light-sensitive silver halide photographic material comprising a basic mordant, an acidic dye, a hydrophilic colloid layer containing a compound (I) and a layer containing a compound (II) which layer is adjacent to said hydrophilic layer.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: August 8, 1978
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yasumasa Numata, Kunio Ito, Keiichi Mori, Yoshitami Ono
  • Patent number: 4085921
    Abstract: A fluid-flow control valve arrangement comprising valve means operable in different conditions including variable-flow, constant-flow and zero-flow mode conditions depending upon predetermined ranges of a prescribed operational parameter, the valve arrangement being useful especially for the control of the flow of fuel in a heating device such as a gas-burning water heating device.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: April 25, 1978
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasukiyo Ueda, Keiichi Mori, Keijiro Mori