Patents by Inventor Hiromasa Mitani

Hiromasa Mitani 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: 10082702
    Abstract: A liquid-crystal display apparatus includes a plurality of rectangular pixels. Each pixel includes a first electrode and a second electrode. A slit region and a concave and convex portion are formed in the first electrode. It further includes a control circuit. The plurality of pixels are constituted of a first pixel group and a second pixel group. First data lines and for applying a voltage on the first electrode are provided closer to the first substrate than the first electrode. In each pixel that constitutes the first pixel group, a second data line extension extending from a second data line is provided adjacent to a first data line. In each pixel that constitutes the second pixel group, a first data line extension extending from the first data line is provided adjacent to the second data line.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 25, 2018
    Assignee: Sony Corporation
    Inventors: Chikashi Kobayashi, Shunichi Suwa, Masashi Miyakawa, Yoji Nagase, Sumito Shiina, Seiji Shibahara, Hiroki Takahashi, Hiromasa Mitani, Kunihiko Nagamine, Koji Hidaka, Masahiko Mizuki
  • Publication number: 20170285410
    Abstract: A liquid-crystal display apparatus includes a plurality of rectangular pixels 10. Each pixel 10 includes a first electrode 22 and a second electrode. A slit region and a concave and convex portion are formed in the first electrode 22. It further includes a control circuit. The plurality of pixels are constituted of a first pixel group and a second pixel group. First data lines 41 and 42 for applying a voltage on the first electrode 22 are provided closer to the first substrate than the first electrode 22. In each pixel that constitutes the first pixel group, a second data line extension 42A extending from a second data line 42 is provided adjacent to a first data line 41. In each pixel that constitutes the second pixel group, a first data line extension 41A extending from the first data line 41 is provided adjacent to the second data line 42.
    Type: Application
    Filed: August 7, 2015
    Publication date: October 5, 2017
    Applicant: Sony Corporation
    Inventors: CHIKASHI KOBAYASHI, SHUNICHI SUWA, MASASHI MIYAKAWA, YOJI NAGASE, SUMITO SHIINA, SEIJI SHIBAHARA, HIROKI TAKAHASHI, HIROMASA MITANI, KUNIHIKO NAGAMINE, KOJI HIDAKA, MASAHIKO MIZUKI
  • Patent number: 8083562
    Abstract: A manufacturing method of an image display apparatus having a substrate and a conductive supporting frame formed at a periphery of the substrate includes steps of forming a wiring on the substrate, and forming an insulating layer on the wiring. The insulating layer includes a silicon nitride or a silicon oxide deposited by a sputtering technique. The insulating layer is seal-bonded with the conductive supporting frame.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromasa Mitani, Masato Muraki
  • Patent number: 7679279
    Abstract: An image display device includes a sealed container having an interior which is maintained at a lower pressure than an atmospheric pressure, a phosphor disposed in the interior of the sealed container, an electron-emitting device disposed in the interior of the sealed container, to emit an electron to the phosphor, and a getter disposed in the interior of the sealed container. In addition, an exhaust pipe is in communication with the interior of the sealed container, and bellows connects the exhaust pipe to the sealed container. The exhaust pipe has, inside thereof, a breakable vacuum isolating member formed from glass film.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: March 16, 2010
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Publication number: 20090203284
    Abstract: The method of manufacturing an image display apparatus of the present invention includes the steps of forming the leading wires C on the rear plate, and forming the thin film insulating layer on the leading wires C by the CVD process or the sputter process. Furthermore, the method also includes the step of seal-bonding the conductive supporting frame on the thin film insulating layer with the seal-bonding material.
    Type: Application
    Filed: January 16, 2009
    Publication date: August 13, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiromasa Mitani, Masato Muraki
  • Patent number: 7511425
    Abstract: In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: March 31, 2009
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Patent number: 7439661
    Abstract: It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: October 21, 2008
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Yasue Sato, Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Tomoko Narusawa, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20080174227
    Abstract: In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device.
    Type: Application
    Filed: August 6, 2007
    Publication date: July 24, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Patent number: 7308819
    Abstract: A gas measuring method performs a gas measurement inside a sealed container provided with a pair of plates and an exhaust pipe having a breakable vacuum isolating member on at least one of the plates. The method includes the steps of connecting the sealed container to a gas measuring apparatus through the exhaust pipe, and breaking the breakable vacuum isolating member.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: December 18, 2007
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Patent number: 7301269
    Abstract: Provided is an image display apparatus, including: a vacuum container which includes an electron source and an anode electrode opposed to the electron source; and an ion pump arranged so as to communicate through the vacuum container, in which: an ion pump container is composed of a non-electroconductive material; and an electroconductive film is formed on an external surface of the vacuum container on a side on which the ion pump container is mounted or on an internal surface of the ion pump container. The image display apparatus achieves: a reduction in weight of the ion pump; an improvement in compatibility to the vacuum container; and the prevention of an adverse effect of discharge inside the ion pump on image display.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: November 27, 2007
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Patent number: 7279846
    Abstract: Provided is an image display apparatus including: a vacuum container having an electron source enclosed therein for displaying an image; an ion pump communicating with the vacuum container for discharging air therefrom and decreasing pressure therein; and a resistor connected in series with the ion pump with respect to a power supply for driving the ion pump. Even if internal resistance of the ion pump undergoes order-of-magnitude changes according to its operating state, current consumption can be suppressed and the ion pump can be driven efficiently.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: October 9, 2007
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20070080637
    Abstract: An image display apparatus includes an envelope including a front substrate on which a display surface is provided, and a rear substrate arranged to face the front substrate. The front substrate includes a metal back formed to be overlaid on the display surface and a getter film formed of two types or more of activated metals, formed on the metal back.
    Type: Application
    Filed: December 15, 2006
    Publication date: April 12, 2007
    Inventors: Yuusuke KASAHARA, Hiromasa Mitani
  • Publication number: 20060208626
    Abstract: In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device.
    Type: Application
    Filed: May 4, 2006
    Publication date: September 21, 2006
    Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Patent number: 7108573
    Abstract: In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: September 19, 2006
    Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
  • Publication number: 20060055637
    Abstract: Provided is an image display apparatus including: a vacuum container having an electron source enclosed therein for displaying an image; an ion pump communicating with the vacuum container for discharging air therefrom and decreasing pressure therein; and a resistor connected in series with the ion pump with respect to a power supply for driving the ion pump. Even if internal resistance of the ion pump undergoes order-of-magnitude changes according to its operating state, current consumption can be suppressed and the ion pump can be driven efficiently.
    Type: Application
    Filed: August 17, 2005
    Publication date: March 16, 2006
    Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20060049734
    Abstract: It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.
    Type: Application
    Filed: August 18, 2005
    Publication date: March 9, 2006
    Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasue Sato, Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Tomoko Narusawa, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20060043865
    Abstract: Provided is an image display apparatus, including: a vacuum container which includes an electron source and an anode electrode opposed to the electron source; and an ion pump arranged so as to communicate through the vacuum container, in which: an ion pump container is composed of a non-electroconductive material; and an electroconductive film is formed on an external surface of the vacuum container on a side on which the ion pump container is mounted or on an internal surface of the ion pump container. The image display apparatus achieves: a reduction in weight of the ion pump; an improvement in compatibility to the vacuum container; and the prevention of an adverse effect of discharge inside the ion pump on image display.
    Type: Application
    Filed: August 25, 2005
    Publication date: March 2, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20060043866
    Abstract: In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.
    Type: Application
    Filed: August 25, 2005
    Publication date: March 2, 2006
    Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
  • Publication number: 20050017634
    Abstract: In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device.
    Type: Application
    Filed: October 14, 2003
    Publication date: January 27, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani