Patents by Inventor Akira Naito

Akira Naito 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: 5537087
    Abstract: A signal discriminator comprising:a plurality of sets of dual divided magnetic cores having different characteristics;a case made of a synthetic resin having a hinge capable of opening and closing the case and a latch means, of which inner portion is divided into sections by a plurality of partition plates, said sections respectively accommodating the plurality of sets of dual divided magnetic cores; andpress-contacting means interposed and retained between the case and the plurality of sets of dual divided magnetic cores, which press the plurality of sets of dual divided magnetic cores when the case is closed and latched by the latch means, thereby uniformly press-contacting respective divided faces of the plurality of sets of dual divided magnetic cores.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: July 16, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Akira Naito
  • Patent number: 5378428
    Abstract: A method of preserving an article which includes enclosing the article and an oxygen absorbent parcel in a container having gas-barrier properties and sealing the container. The parcel is formed by packing an oxygen absorbent composition with a gas permeable packing material, the oxygen absorbent composition containing an linear hydrocarbon polymer having one or more unsaturated groups or a mixture of the polymer with an unsaturated fatty acid compound, an oxidation promoter, a basic substance and an adsorption substance.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: January 3, 1995
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yoshiaki Inoue, Shigeru Murabayashi, Kazuo Fujinami, Isamu Yoshino, Takamasa Kawakami, Satoru Makinose, Akira Naito
  • Patent number: 5373277
    Abstract: A signal discriminator comprising:a plurality of sets of dual divided magnetic cores having different characteristics;a case made of a synthetic resin having a hinge capable of opening and closing the case and a latch means, of which inner portion is divided into sections by a plurality of partition plates, said sections respectively accommodating the plurality of sets of dual divided magnetic cores; andpress-contacting means interposed and retained between the case and the plurality of sets of dual divided magnetic cores, which press the plurality of sets of dual divided magnetic cores when the case is closed and latched by the latch means, thereby uniformly press-contacting respective divided faces of the plurality of sets of dual divided magnetic cores.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: December 13, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Akira Naito
  • Patent number: 5286407
    Abstract: An oxygen absorbent composition containing a linear hydrocarbon polymer having one or more unsaturated groups or a mixture of a linear hydrocarbon polymer having one or more unsaturated groups with an unsaturated fatty acid compound and an oxidation promoter as essential components and optionally containing a basic substance and/or an adsorption substance; an oxygen absorbent parcel formed by packing the oxygen absorbent composition with a gas-permeable packing material; and a method of preserving an article by means of same.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: February 15, 1994
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yoshiaki Inoue, Shigeru Murabayashi, Kazuo Fujinami, Isamu Yoshino, Akira Naito
  • Patent number: 5266055
    Abstract: In a connector for connecting an electrical circuit, one or more conductors are embedded in a magnetic body so as to function as inductance. The conductors may have an end portion provided with a capacitor. A main body portion of the connector may include a magnetic compound so as to function as an AC plug.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: November 30, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Naito, Hikohiro Togane
  • Patent number: 5247610
    Abstract: A graphic generating apparatus ane method in comprising a plurality of reference figures are stored and a plurality of figure parts are stored. One of the stored reference figures is selected and displayed and at least one of the plurality of figure parts is selected.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: September 21, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Sayuri Oshima, Akira Nakajima, Akira Naito, Yasumasa Matsuda, Hirohide Endo, Michihiro Mese, Tsukasa Yamauchi, Toshiharu Kawasaki, Hiroyuki Kumai, Shigeyuki Nishitani, Yukie Yamazaki
  • Patent number: 5168252
    Abstract: A filter which includes: a plurality of filter elements. The filter elements are composed of magnetic beads and a magnetic compound is provided wherein the filter elements sealed therein. The magnetic beads may be arranged in a single column magnetic compound, may be formed of a cubic shape or may be arranged in a parallel column therein.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: December 1, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Akira Naito
  • Patent number: 5153812
    Abstract: A composite LC element including integrally a coil and a capacitor which comprises a layered film structure wherein insulating films and electrode sheets with terminals at their both ends are alternately laminated, said layered film structure being wound in a spiral form from its one end. An intermediate electrode sheet having a shorter length and having a terminal at its one end may be interposed between said insulating films. Said electrode sheet may have an additional terminal at an intermediate portion.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Akira Naito
  • Patent number: 5105120
    Abstract: A ferrite-containing plastic composition including a ferrite powder having an average particle size of from 100 to 500 .mu.m in an amount of at least 80% by weight based on the entire composition, a plastic and a small amount of additives.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: April 14, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsunori Nishioka, Shouiti Yoshiyama, Akira Naito
  • Patent number: 4744638
    Abstract: A display apparatus having a plurality of display units arranged contiguously so as to form mosaic patterns on the display apparatus by varying in the contents of display according to control signals given thereto. The display unit includes a fluorescent lamp, a display element, a fluorescent lamp stabilizer, a glow lamp for lighting the fluorescent lamp, and a case. All these components of the display unit are accommodated in the case, so that the display apparatus is formed in a compact construction and the electronic circuits of the display units are not disturbed by noises attributable to the current flowing through the cables connecting the fluorescent lamp stabilizers to the fluorescent lamps, respectively.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 17, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Makoto Ota, Akira Naito, Hiroshi Sawamura
  • Patent number: 4668036
    Abstract: Disclosed herein is a large picture display device including a plurality of display units mounted to a support frame. The large picture display device comprises a push latch stopper mounted to the display unit, a push latch mounted to the support frame and adapted to mate with the push latch stopper, and a spring means provided on the support frame. With this arrangement, when the display unit is inserted into the support frame, the push latch stopper is engaged with the push latch to be locked, thereby permitting the display unit to be retained by the support frame. When the push latch is unlocked, the display unit is drawn because the spring means forwardly biases the display unit.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: May 26, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Makoto Ota, Akira Naito, Toyohiro Fujiwara
  • Patent number: 4646354
    Abstract: An area measuring apparatus for measuring the surface area of an object by the use of a TV camera. The apparatus comprises a comparator which separates a component corresponding to the image of the object from the image signal obtained with the TV camera; a gate circuit which allows a clock signal to pass only while the image component is detected; and an arithmetic circuit which counts the pulses of the clock signal allowed to pass the gate circuit and corresponding to a single frame of the image signal and converts the pulse counts into an area.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: February 24, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Naito, Tetsuzi Kodama, Hideki Tsuruse, Hironobu Tsutsumi, Hiroshi Ushio
  • Patent number: 4645993
    Abstract: A position control method for aligning a workpiece in a machining apparatus. An alignment pattern, such as a diamond, is provided on the surface of the workpiece. The alignment pattern and the surrounding region are sensed by an image pickup television camera, the output of which is converted to binary form. From the binary data, the central point of the pattern is calculated. The difference between this central point and a reference point is then determined, and the result used to control the position of the workpiece via a positioning mechanism.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: February 24, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Naito, Tetsuji Kodama, Hideki Tsuruse, Hironobu Tsutsumi
  • Patent number: 4324784
    Abstract: A process for preventing growth of marine animals, i.e. shellfish, Polyzoa, and Hydrozoa on a surface, characterized by supplying hydrogen peroxide and/or a hydrogen peroxide-generating agent into sea water in contact with the surface is disclosed. Surfaces of apparatus and/or pipe constituting flow paths for sea water and plant utilizing sea water are kept clean by the process.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: April 13, 1982
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Akira Naito, Toru Hayakawa, Masakatsu Nakanishi, Sunao Ikuta, Shoichiro Kajiwara, Hitoshi Yamaguchi