Patents by Inventor Tadami Maeda

Tadami Maeda 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: 10655209
    Abstract: There is provided an inexpensive electromagnetic shield that can achieve exceptional shielding and display visibility characteristics, and provide high environmental resistance as necessary. In an electromagnetic shield (1), an intermediate layer (3) is formed on a glass substrate (2) comprising soda lime glass, an electroconductive layer (4) of Al is formed thereon, and openings (5) are formed by wet etching on the intermediate layer (3) and the electroconductive layer (4) after these layers have been formed by sputtering or vacuum deposition. Furthermore, an ITO layer (6) is formed on the entire glass surface including the intermediate layer (3) and the electroconductive layer (4) after the openings (5) are formed. In this configuration, the intermediate layer (3) comprises a mixture of at least one metal selected from chromium, molybdenum, and tungsten, and at least one oxide selected from oxides of silicon, oxides of aluminum, and oxides of titanium.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 19, 2020
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Hitoshi Tsuji, Tadami Maeda, Isamu Kanda
  • Patent number: 10509522
    Abstract: To provide a capacitive touch switch capable of improving ununiformity of design and improving appearance relating to design or decorativeness. A capacitive touch switch 1 includes a glass substrate 2, a sensor portion formed at a side of an opposite surface opposite to a touch surface of the glass substrate. The sensor portion includes a center portion A of a wire attached portion 4 to a flexible printed circuit, and a connection portion C connected to the wire network B. In the connection portion C, an opening rate in a capacitive touch switch panel is increased by setting an electrode pattern width to be thinner from the wire attached portion A toward the wire network B.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 17, 2019
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Hitoshi Tsuji, Isamu Kanda, Tadami Maeda, Kouichi Okuyama, Misa Yamanaka
  • Publication number: 20190042025
    Abstract: To provide a capacitive touch switch capable of improving ununiformity of design and improving appearance relating to design or decorativeness. A capacitive touch switch 1 includes a glass substrate 2, a sensor portion formed at a side of an opposite surface opposite to a touch surface of the glass substrate. The sensor portion includes a center portion A of a wire attached portion 4 to a flexible printed circuit, and a connection portion C connected to the wire network B. In the connection portion C, an opening rate in a capacitive touch switch panel is increased by setting an electrode pattern width to be thinner from the wire attached portion A toward the wire network B.
    Type: Application
    Filed: December 9, 2016
    Publication date: February 7, 2019
    Inventors: Hitoshi TSUJI, Isamu KANDA, Tadami MAEDA, Kouichi OKUYAMA, Misa YAMANAKA
  • Patent number: 10198121
    Abstract: To provide a projected capacitive touch switch panel having sensor units that are easy to adjust and that minimally reflect visible light, and furthermore having adequate environment-resistance properties. A projected capacitive touch switch panel 1 comprising a glass substrate 2 that has a sensor unit 3 for performing detection along the X direction, and a glass substrate 4 that has a sensor unit 5 for performing detection along the Y direction, in which: the two glass substrates are laminated, and the sensor units are sandwiched between the glass substrates so as to face each other; each of the sensor units has a sensor electrode comprising an Al thin film, and a blackened film including at least one metal selected from Cr, Mo, and W.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 5, 2019
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Hitoshi Sakuda, Isamu Kanda, Tadami Maeda
  • Patent number: 10031612
    Abstract: Provided is a capacitive touch switch panel on which it is possible to form a transparent sensor electrode having high quality design shape and reduced reflection of visible light, and which moreover has excellent appearance and ample environmental resistance. This capacitive touch switch panel 1 is provided with a glass substrate 2, and with a sensor part 3 formed on this glass substrate 2. The sensor part 3 has a sensor electrode 4, this sensor electrode 4 comprising an Al thin film formed by sputtering or vacuum deposition into a switch configuration on the glass substrate 2 at the opposite surface side 2b from a touch surface 2a, the sensor part 3 having an intermediate layer between the glass substrate 2 and at least a portion of the Al thin film. This intermediate layer comprises a thin film that includes at least one metal selected from Cr, Mo, and W.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 24, 2018
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Tadami Maeda, Isamu Kanda, Koji Kato, Takahiro Okamoto, Hitoshi Sakuda, Misa Yamanaka, Naoya Katsumura, Yuuki Nakayama
  • Publication number: 20170103867
    Abstract: A vacuum tube includes a filament and two pairs of a grid and an anode. The filament is tensioned linearly and emits thermoelectrons. Both of the anodes are formed on a same face on a planar substrate. The filament is arranged parallel to the planar substrate at a position facing both of the anodes. Each of the grids is arranged, such that the grid faces the anode of a same pair at a first predetermined distance from the anode and has a second predetermined distance from the filament, between the anode and the filament. The vacuum tube further includes an intermediate filament fixing part fixing the filament at a position corresponding to an intermediate point between the anodes of the two pairs.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Applicants: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED, KORG INC.
    Inventors: Kazunori TATSUDA, Tadami MAEDA, Misa YAMANAKA, Fumio MIEDA
  • Patent number: 9620323
    Abstract: A vacuum tube includes a filament and two pairs of a grid and an anode. The filament is tensioned linearly and emits thermoelectrons. Both of the anodes are formed on a same face on a planar substrate. The filament is arranged parallel to the planar substrate at a position facing both of the anodes. Each of the grids is arranged, such that the grid faces the anode of a same pair at a first predetermined distance from the anode and has a second predetermined distance from the filament, between the anode and the filament. The vacuum tube further includes an intermediate filament fixing part fixing the filament at a position corresponding to an intermediate point between the anodes of the two pairs.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 11, 2017
    Assignees: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED, KORG INC.
    Inventors: Kazunori Tatsuda, Tadami Maeda, Misa Yamanaka, Fumio Mieda
  • Patent number: 9589758
    Abstract: An object of the present invention is to provide a vacuum tube with a structure close to that of an inexpensive and easily available vacuum fluorescent display which easily operates as an analog amplifier. A vacuum tube subject to the present invention comprises: a filament which is tensioned linearly and emits thermoelectrons, an anode arranged parallel to the filament, and a grid arranged between the filament and the anode such that the grid faces the anode. The present invention is characterized in that a distance between the filament and the grid is between 0.2 mm and 0.6 mm, including 0.2 mm and 0.6 mm.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: March 7, 2017
    Assignees: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED
    Inventors: Kazunori Tatsuda, Tadami Maeda, Misa Yamanaka
  • Patent number: 9583300
    Abstract: The vacuum tube subject to the present invention comprises a filament and two pairs of a grid and an anode. The filament is tensioned linearly and emitting thermoelectrons. Both of the anodes are formed on the same face on a planar substrate. The filament is arranged parallel to the planar substrate at a position facing both of the anodes. Each of the grids is arranged, such that the grid faces the anode in the same pair at a first predetermined distance from the anode and has a second predetermined distance from the filament, between the anode and the filament. The vacuum tube comprises an intermediate filament fixing part fixing the filament at a position corresponding to an intermediate point between the anodes of the two pairs.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: February 28, 2017
    Assignees: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED, KORG INC.
    Inventors: Kazunori Tatsuda, Tadami Maeda, Misa Yamanaka, Fumio Mieda
  • Publication number: 20170003823
    Abstract: To provide a projected capacitive touch switch panel having sensor units that are easy to adjust and that minimally reflect visible light, and furthermore having adequate environment-resistance properties. A projected capacitive touch switch panel 1 comprising a glass substrate 2 that has a sensor unit 3 for performing detection along the X direction, and a glass substrate 4 that has a sensor unit 5 for performing detection along the Y direction, in which: the two glass substrates are laminated, and the sensor units are sandwiched between the glass substrates so as to face each other; each of the sensor units has a sensor electrode comprising an Al thin film, and a blackened film including at least one metal selected from Cr, Mo, and W.
    Type: Application
    Filed: March 13, 2015
    Publication date: January 5, 2017
    Inventors: Hitoshi SAKUDA, Isamu KANDA, Tadami MAEDA
  • Publication number: 20160289816
    Abstract: There is provided an inexpensive electromagnetic shield that can achieve exceptional shielding and display visibility characteristics, and provide high environmental resistance as necessary. In an electromagnetic shield (1), an intermediate layer (3) is formed on a glass substrate (2) comprising soda lime glass, an electroconductive layer (4) of Al is formed thereon, and openings (5) are formed by wet etching on the intermediate layer (3) and the electroconductive layer (4) after these layers have been formed by sputtering or vacuum deposition. Furthermore, an ITO layer (6) is formed on the entire glass surface including the intermediate layer (3) and the electroconductive layer (4) after the openings (5) are formed. In this configuration, the intermediate layer (3) comprises a mixture of at least one metal selected from chromium, molybdenum, and tungsten, and at least one oxide selected from oxides of silicon, oxides of aluminum, and oxides of titanium.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 6, 2016
    Inventors: Hitoshi TSUJI, Tadami MAEDA, Isamu KANDA
  • Patent number: 9443831
    Abstract: Provided is a substrate for mounting an LED element in which a stable light-emitting surface is obtained, as well as a light source and an LED display using this substrate, so that the axis at which light is emitted by a chip LED does not vary. The substrate for mounting an LED element (1) comprises a substrate (1a) on which an LED element can be mounted, and a wiring layer (2) for supplying electricity to an LED element (7). The wiring layer (2) for supplying electricity to the LED element (7) is formed on a mirror-finished surface on the entirety of a substrate surface on which the LED element is mounted, except for an insulating space 4 capable of providing insulation between terminals of the LED element.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: September 13, 2016
    Assignees: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Tadami Maeda, Naoki Noda
  • Publication number: 20160253029
    Abstract: Provided is a capacitive touch switch panel on which it is possible to form a transparent sensor electrode having high quality design shape and reduced reflection of visible light, and which moreover has excellent appearance and ample environmental resistance. This capacitive touch switch panel 1 is provided with a glass substrate 2, and with a sensor part 3 formed on this glass substrate 2. The sensor part 3 has a sensor electrode 4, this sensor electrode 4 comprising an Al thin film formed by sputtering or vacuum deposition into a switch configuration on the glass substrate 2 at the opposite surface side 2b from a touch surface 2a, the sensor part 3 having an intermediate layer between the glass substrate 2 and at least a portion of the Al thin film. This intermediate layer comprises a thin film that includes at least one metal selected from Cr, Mo, and W.
    Type: Application
    Filed: September 19, 2014
    Publication date: September 1, 2016
    Inventors: Tadami MAEDA, Isamu KANDA, Koji KATO, Takahiro OKAMOTO, Hitoshi SAKUDA, Misa YAMANAKA, Naoya KATSUMURA, Yuuki NAKAYAMA
  • Publication number: 20160211106
    Abstract: The vacuum tube subject to the present invention comprises a filament and two pairs of a grid and an anode. The filament is tensioned linearly and emitting thermoelectrons. Both of the anodes are formed on the same face on a planar substrate. The filament is arranged parallel to the planar substrate at a position facing both of the anodes. Each of the grids is arranged, such that the grid faces the anode in the same pair at a first predetermined distance from the anode and has a second predetermined distance from the filament, between the anode and the filament. The vacuum tube comprises an intermediate filament fixing part fixing the filament at a position corresponding to an intermediate point between the anodes of the two pairs.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 21, 2016
    Applicants: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED, KORG INC.
    Inventors: Kazunori TATSUDA, Tadami MAEDA, Misa YAMANAKA, Fumio MIEDA
  • Publication number: 20160211107
    Abstract: An object of the present invention is to provide a vacuum tube with a structure close to that of an inexpensive and easily available vacuum fluorescent display which easily operates as an analog amplifier. A vacuum tube subject to the present invention comprises: a filament which is tensioned linearly and emits thermoelectrons, an anode arranged parallel to the filament, and a grid arranged between the filament and the anode such that the grid faces the anode. The present invention is characterized in that a distance between the filament and the grid is between 0.2 mm and 0.6 mm, including 0.2 mm and 0.6 mm.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 21, 2016
    Applicants: NORITAKE ITRON CORPORATION, NORITAKE CO., LIMITED
    Inventors: Kazunori TATSUDA, Tadami MAEDA, Misa YAMANAKA
  • Publication number: 20150255436
    Abstract: Provided is a substrate for mounting an LED element in which a stable light-emitting surface is obtained, as well as a light source and an LED display using this substrate, so that the axis at which light is emitted by a chip LED does not vary. The substrate for mounting an LED element (1) comprises a substrate (1a) on which an LED element can be mounted, and a wiring layer (2) for supplying electricity to an LED element (7). The wiring layer (2) for supplying electricity to the LED element (7) is formed on a mirror-finished surface on the entirety of a substrate surface on which the LED element is mounted, except for an insulating space 4 capable of providing insulation between terminals of the LED element.
    Type: Application
    Filed: September 2, 2013
    Publication date: September 10, 2015
    Applicants: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventors: Tadami Maeda, Naoki Noda
  • Patent number: 8624480
    Abstract: The distance between filamentary cathodes and a phosphor on an anode substrate can be reduced by shortening the distance between the filamentary cathodes and a grid. To obtain high luminance without loss of display quality, the present invention provides a vacuum fluorescent display (1) with a driver IC, comprising a display unit (3) provided with a phosphor layer on an anode substrate (2), a plurality of filamentary cathodes (5), a grid (4), a driver IC (6), and a filament support (7) for shielding the IC and supporting an end part of the filamentary cathodes. The end part of the filamentary cathodes is fixed to one short side of the vacuum fluorescent display at a long side of the filament support. Depressions are provided to a surface of the filament support, or slits are provided to the filament support.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 7, 2014
    Assignees: Noritake Itron Corporation, Noritake Co., Limited
    Inventor: Tadami Maeda
  • Publication number: 20110279425
    Abstract: The distance between filamentary cathodes and a phosphor on an anode substrate can be reduced by shortening the distance between the filamentary cathodes and a grid. To obtain high luminance without loss of display quality, the present invention provides a vacuum fluorescent display (1) with a driver IC, comprising a display unit (3) provided with a phosphor layer on an anode substrate (2), a plurality of filamentary cathodes (5), a grid (4), a driver IC (6), and a filament support (7) for shielding the IC and supporting an end part of the filamentary cathodes. The end part of the filamentary cathodes is fixed to one short side of the vacuum fluorescent display at a long side of the filament support. Depressions are provided to a surface of the filament support, or slits are provided to the filament support.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicants: NORITAKE CO., LIMITED, NORITAKE ITRON CORPORATION
    Inventor: Tadami Maeda
  • Patent number: 7262549
    Abstract: A vacuum fluorescent display includes a display portion, filament cathode, grid, and a pair of filament support members. The display portion is arranged on a substrate and has an anode coated with a phosphor material in accordance with a pattern to be displayed. The filament cathode is applied above the anode of the display portion to be separate from the anode. The grid is arranged between the anode of the display portion and the filament cathode, and cooperates with the corresponding anode to display a predetermined pattern. The pair of filament support members are connected to an outside and extend the filament cathode. Part of the filament support members is clamped between a front glass plate and glass spacer and is extracted to outside.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: August 28, 2007
    Assignees: Noritake Itron Corporation, Noritake Co., Ltd.
    Inventors: Tadami Maeda, Kouichi Okuyama
  • Publication number: 20050140267
    Abstract: A vacuum fluorescent display includes a display portion, filament cathode, grid, and a pair of filament support members. The display portion is arranged on a substrate and has an anode coated with a phosphor material in accordance with a pattern to be displayed. The filament cathode is applied above the anode of the display portion to be separate from the anode. The grid is arranged between the anode of the display portion and the filament cathode, and cooperates with the corresponding anode to display a predetermined pattern. The pair of filament support members are connected to an outside and extend the filament cathode. Part of the filament support members is clamped between a front glass plate and glass spacer and is extracted to outside.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 30, 2005
    Inventors: Tadami Maeda, Kouichi Okuyama