Patents by Inventor Toshiyuki Mima

Toshiyuki Mima 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: 8749734
    Abstract: Unevenness due to the influence of a mesh when a sealing material for bonding a TFT substrate and a counter substrate together is formed on the counter substrate by screen printing is prevented. Light shielding films are extended in the horizontal direction and arranged in the vertical direction. Red color filters, blue color filters, and green color filters are extended in the vertical direction at predetermined intervals. The blue color filters are extended also in the horizontal direction so as to cover the light shielding films. In a cross section along the red color filter and the green color filter, the level of a portion above the light shielding film is higher compared with that of the other portion by the thicknesses of the blue color filter and the light shielding film. In screen printing, since the high portion serves as a stopper for the mesh, the occurrence of unevenness due to the mesh can be prevented.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: June 10, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshiyuki Mima, Yasumitsu Fujita, Toshiyuki Koshita
  • Publication number: 20130286337
    Abstract: The liquid crystal display device is provided with a plurality of spacers and a plurality of pedestals which include a first group of the spacers and the pedestals, the first group including at least a pair of one of the spacers and one of the pedestals opposing to each other, and a second group of the spacers and the pedestals, the second group including at least another pair of another one of the spacers and another one of the pedestals opposing to each other, in which the pair of the spacer and the pedestal which form the first group and the pair of the spacer and the pedestal which form the second group are disposed so that a center of the first surface and a center of the second surface are displaced in different directions.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Applicants: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., HITACHI DISPLAYS, LTD.
    Inventors: Takao SATO, Yuji MAEDE, Toshiyuki MIMA, Toshiyuki KOSHITA
  • Publication number: 20100053536
    Abstract: The liquid crystal display device is provided with a plurality of spacers and a plurality of pedestals which include a first group of the spacers and the pedestals, the first group including at least a pair of one of the spacers and one of the pedestals opposing to each other, and a second group of the spacers and the pedestals, the second group including at least another pair of another one of the spacers and another one of the pedestals opposing to each other, in which the pair of the spacer and the pedestal which form the first group and the pair of the spacer and the pedestal which form the second group are disposed so that a center of the first surface and a center of the second surface are displaced in different directions.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 4, 2010
    Inventors: Takao SATO, Yuji Maede, Toshiyuki Mima, Toshiyuki Koshita
  • Publication number: 20100045914
    Abstract: An IPS-type liquid crystal display device which can prevent the occurrence of meshes flaw irregularities at the time of forming a sealing material for adhering a TFT substrate and a counter substrate by screen printing is provided. Rubbing which determines the initial alignment direction of liquid crystal molecules and a pretilt angle is applied to the TFT substrate and the counter substrate. In the IPS-type liquid crystal display device, it is necessary to set a pretilt angle to 2.5 degrees or less. The sealing material for adhering the TFT substrate and the counter substrate is formed on the counter substrate by screen printing. By setting an angle made by the squeezing direction in screen printing and the rubbing direction to a value which falls within a range from 165 degrees to 195 degrees, it is possible to prevent the occurrence of meshes flaw irregularities.
    Type: Application
    Filed: August 25, 2009
    Publication date: February 25, 2010
    Inventors: Toshiyuki MIMA, Yasumitsu Fujita, Kazunori Zenba
  • Publication number: 20100020275
    Abstract: Unevenness due to the influence of a mesh when a sealing material for bonding a TFT substrate and a counter substrate together is formed on the counter substrate by screen printing is prevented. Light shielding films are extended in the horizontal direction and arranged in the vertical direction. Red color filters, blue color filters, and green color filters are extended in the vertical direction at predetermined intervals. The blue color filters are extended also in the horizontal direction so as to cover the light shielding films. In a cross section along the red color filter and the green color filter, the level of a portion above the light shielding film is higher compared with that of the other portion by the thicknesses of the blue color filter and the light shielding film. In screen printing, since the high portion serves as a stopper for the mesh, the occurrence of unevenness due to the mesh can be prevented.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Inventors: Toshiyuki MIMA, Yasumitsu FUJITA, Toshiyuki KOSHITA
  • Patent number: 7250993
    Abstract: For suppressing the disclination caused due to misalignment between a pair of substrates of the TFT-type Liquid Crystal Display Device, the present invention makes light shielding widths of the pixel electrode formed on one of the substrates having a plurality of image signal lines together with the pixel electrodes asymmetry in accordance with an angle formed by an extension direction of the image signal line and a rubbing direction of the one of the substrates. Namely, the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is acute, and the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is obtuse, respectively.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: July 31, 2007
    Assignee: Hitachi, Ltd.
    Inventor: Toshiyuki Mima
  • Publication number: 20050146656
    Abstract: For suppressing the disclination caused due to misalignment between a pair of substrates of the TFT-type Liquid Crystal Display Device, the present invention makes light shielding widths of the pixel electrode formed on one of the substrates having a plurality of image signal lines together with the pixel electrodes asymmetry in accordance with an angle formed by an extension direction of the image signal line and a rubbing direction of the one of the substrates. Namely, the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is acute, and the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is obtuse, respectively.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 7, 2005
    Inventor: Toshiyuki Mima
  • Patent number: 6879357
    Abstract: For suppressing the disclination caused due to misalignment between a pair of substrates of the TFT-type Liquid Crystal Display Device, the present invention makes light shielding widths of the pixel electrode formed on one of the substrates having a plurality of image signal lines together with the pixel electrodes asymmetry in accordance with an angle formed by an extension direction of the image signal line and a rubbing direction of the one of the substrates. Namely, the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is acute, and the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is obtuse, respectively.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: April 12, 2005
    Assignee: Hitachi, Ltd.
    Inventor: Toshiyuki Mima
  • Publication number: 20030043319
    Abstract: For suppressing the disclination caused due to misalignment between a pair of substrates of the TFT-type Liquid Crystal Display Device, the present invention makes light shielding widths of the pixel electrode formed on one of the substrates having a plurality of image signal lines together with the pixel electrodes asymmetry in accordance with an angle formed by an extension direction of the image signal line and a rubbing direction of the one of the substrates. Namely, the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is acute, and the light shielding width of the pixel electrode at the image signal line side supplying an image signal to the pixel electrode should be broader if the angle is obtuse, respectively.
    Type: Application
    Filed: July 31, 2002
    Publication date: March 6, 2003
    Applicant: Hitachi, Ltd.
    Inventor: Toshiyuki Mima
  • Publication number: 20020128747
    Abstract: There is provided a method for running an electric energy storage system which is set up at an electric energy consumer and capable of controlling an electric energy to be purchased by the electric energy consumer by controlling charge and discharge. A running pattern of charge and discharge of the electric energy storage system is previously programmed, and the run of the electric energy storage system is controlled on the basis of the previously programmed running pattern. The method for running an electric energy storage system can minimize a total electric fee by comparing an electric fee arranged by an electric energy supplier with the situation of a power load required by an electric energy consumer in running the electric energy storage system.
    Type: Application
    Filed: December 7, 2001
    Publication date: September 12, 2002
    Applicant: NGK Insulators, Ltd.
    Inventor: Toshiyuki Mima
  • Patent number: 5196277
    Abstract: An excellent stable sodium-sulfur cell having a high mechanical strength and a very long life is provided. The cell eliminates formation of cracks in a joining portion of the solid electrolyte tube and the insulative ring of the cell with the aid of a solder glass filled in a gap between the solid electrolyte tube and the insulative ring, preferably with the aid of a tapered portion formed at at least one of the solid electrolyte tube and the insulative ring, thereby to completely obviate a direct reaction of active substances of the positive electrode and the negative electrode, overheating and destruction of the cell. The sodium-sulfur cell, includes a solid electrolyte tube, an insulative ring, a gap of 100-500 .mu.m formed between the solid electrolyte tube and the insulative ring, and a solder glass filled in the gap for joining the insulative ring to the solid electrolyte tube.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: March 23, 1993
    Assignee: NGK Insulators, Ltd.
    Inventors: Toshiyuki Mima, Michimasa Fujii, Hirohiko Iwasaka
  • Patent number: 5090793
    Abstract: An optical fiber composite insulator including a hollow insulator body having an axial through-hole and at least one optical fiber extended through the through-hole and hermetically sealed to the inner surface of the through-hole by a sealing material. A relationship between a condition of the inner surface of the through-hole and the sealing material, a relationship between the inner diameters of the through-hole and the outer diameter of the hollow insulator body or a coating material on the optical fiber are selected to provide high insulating property, mechanical strength and airtight property of the optical fiber composite insulator.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: February 25, 1992
    Assignee: NGK Insulators, Ltd.
    Inventors: Shoji Seike, Toshiyuki Mima, Masayuki Nozaki, Naoki Tani, Mitsuji Ikeda
  • Patent number: 5029969
    Abstract: An optical fiber composite insulator comprises a hollow insulator body having an axial through-hole and at least one optical fiber extended through the through-hole and hermetically sealed to the inner surface of the through-hole by a sealing material. A relationship between a condition of the inner surface of the through-hole and the sealing material, a relationship between the inner diameters of the through-hole and the outer diameter of the hollow insulator body or a coating material on the optical fiber are selected to provide high insulating property, mechanical strength and airtight property of the optical fiber composite insulator.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 9, 1991
    Assignee: NGK Insulators, Ltd.
    Inventors: Shoji Seike, Toshiyuki Mima, Masayuki Nozaki, Naoki Tani, Mitsuji Ikeda
  • Patent number: 5012383
    Abstract: An excellent lightning arrestor insulator is provided having a discharge gap portion and an arrestor ZnO element device both built in a body of the insulator, comprising projected discharge electrodes arranged in the inside of the insulator body, the discharge gap portion being formed of a heat resistant protrusion arranged in the inside of the insulator body and surrounding the discharge electrodes, and a pair of metal plates and/or electrically conductive ceramic plates sandwiching the protrusion from both sides thereof and electrically connected to the discharge electrodes, the pair of plates being joined and airtightly sealed to the protrusion via an inorganic glass. The arrestor ZnO element device has a highly reliable airtight fixing and sealing structure so that accidents in a power supply or distribution line at a normal working voltage can be substantially eliminated, and damages caused by hygromeration and lightnings can be noticeably decreased.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: April 30, 1991
    Assignee: NGK Insulators, Ltd.
    Inventors: Shoji Seike, Toshiyuki Mima, Masayuki Nozaki
  • Patent number: 4984860
    Abstract: An optical fiber-containing insulator including an insulator body having a through hole and an optical fiber inserted into the through hole in which an insulation gas or an organic material is filled in a middle portion of the through hole, the insulator comprising wide-mouthed portions arranged in both end portions of the through hole, cylindrical members inserted into the wide-mouthed portions and heat-resistive adhesive agent member arranged between the insulation gas or organic insulation material and the cylindrical member. A process for producing such an optical fiber-containing insulator is also disclosed.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: January 15, 1991
    Assignee: NGK Insulators, Ltd.
    Inventors: Shoji Seike, Toshiyuki Mima, Koichi Mori
  • Patent number: 4919217
    Abstract: An optical fiber-containing insulator including an insulator body having a through hole provided in a central portion thereof, an optical fiber inserted into the through hole, a stepped portion formed in the through hole at at least one end of the insulator body, a sealing section consisting of a pair of holders provided at upper and lower ends of the stepped portion, an inorganic glass layer sandwiched between the holders, and a protective layer formed on the outer holder. A process for producing such an optical fiber-containing insulator is also disclosed.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: April 24, 1990
    Assignee: NGK Insulators, Ltd.
    Inventors: Toshiyuki Mima, Hideki Shimizu
  • Patent number: 4782199
    Abstract: A high voltage porcelain insulator having a glaze applied to at least a head portion of the insulator which head portion is covered by a metal fitting and a cement. The glaze essentially consists of, in terms of weight, from 64.0 to 68.0% of SiO.sub.2, from 17.5 to 19.0% of Al.sub.2 O.sub.3, from 5.0 to 6.5% of MgO, not more than 3.0% of CaO, from 2.0 to 2.8% of K.sub.2 O and Na.sub.2 O in a total amount, and from 3.0 to 9.0%, when calculated as MnO, a compound which is converted to MnO and or MnO.sub.2 after being fired at a temperature range suitable for firing porcelain.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: November 1, 1988
    Assignee: NGK Insulators, Ltd.
    Inventors: Shoji Seike, Takao Totoki, Toshiyuki Mima