Patents by Inventor Hisanori Tsuda

Hisanori Tsuda 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: 8174198
    Abstract: An image display apparatus includes a rear plate including electron-emitting devices, a face plate including an anode electrode, a voltage applying unit configured to apply a voltage to the anode electrode, a switching unit configured to switch between a display state of displaying an image and a non-display state of displaying no image, and a timing unit. The timing unit measures a non-display time, which is an amount of time that the switching unit allows the non-display state to continue. After the timing unit has measured a certain non-display time, the voltage applying unit applies, to the anode electrode, a second voltage lower than a first voltage to be applied in the display state, to enable the electron-emitting devices to emit electrons.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: May 8, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hisanori Tsuda, Yasue Sato
  • Patent number: 7635943
    Abstract: An image display apparatus is provided with a vacuum chamber consisting of an electron source substrate and an image display substrate, and an ion pump which is attached to an electron-emitting substrate or the image display substrate and exhausts air from the vacuum chamber by the action of a magnet, wherein the magnet is attached and fixed to the substrate to which the ion pump has been attached. Thereby, the image display apparatus prevents the magnet from applying an excessive force to the ion pump by its weight, and acquires a stable structure without causing a vacuum leak.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: December 22, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Yasue Sato
  • Publication number: 20090243497
    Abstract: An image display apparatus includes a rear plate including electron-emitting devices, a face plate including an anode electrode, a voltage applying unit configured to apply a voltage to the anode electrode, a switching unit configured to switch between a display state of displaying an image and a non-display state of displaying no image, and a timing unit. The timing unit measures a non-display time, which is an amount of time that the switching unit allows the non-display state to continue. After the timing unit has measured a certain non-display time, the voltage applying unit applies, to the anode electrode, a second voltage lower than a first voltage to be applied in the display state, to enable the electron-emitting devices to emit electrons.
    Type: Application
    Filed: March 9, 2009
    Publication date: October 1, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hisanori Tsuda, Yasue Sato
  • 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: 7446467
    Abstract: An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: November 4, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato
  • 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
  • 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: 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: 20060043871
    Abstract: An image display apparatus is provided with a vacuum chamber consisting of an electron source substrate and an image display substrate, and an ion pump which is attached to an electron-emitting substrate or the image display substrate and exhausts air from the vacuum chamber by the action of a magnet, wherein the magnet is attached and fixed to the substrate to which the ion pump has been attached. Thereby, the image display apparatus prevents the magnet from applying an excessive force to the ion pump by its weight, and acquires a stable structure without causing a vacuum leak.
    Type: Application
    Filed: August 17, 2005
    Publication date: March 2, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Yasue Sato
  • 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: 20060043870
    Abstract: An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.
    Type: Application
    Filed: August 15, 2005
    Publication date: March 2, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato
  • Patent number: 6246104
    Abstract: An Si semiconductor device has an emitter region, a base region and a collector region formed on a substrate substantially in parallel to a plane of the substrate. And at least one of the emitter region the base region and the collector region includes an SiGe mixed crystal semiconductor region formed by ion implantation of Ge.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: June 12, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hisanori Tsuda, Hidenori Watanabe
  • Patent number: 6154265
    Abstract: A liquid crystal device is constituted by a pair of electrode plates and a liquid crystal composition disposed between the electrode plates. One of the electrode plates comprises a light-transmissive substrate, a plurality of electrodes including principal electrodes and auxiliary electrodes supported on the light-transmissive substrate, a plurality of color filters disposed on the light-transmissive substrate and an insulating layer disposed on the color filters. Each auxiliary electrode is disposed between an associated principal electrode and the light-transmissive substrate so as to be electrically connected with at least a part of the associated principal electrode, and the auxiliary electrodes are disposed with spacings therebetween which are filled with the color filters and the insulating layer.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: November 28, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaru Kamio, Hisanori Tsuda, Akira Tsuboyama, Hiroyuki Tokunaga, Yutaka Inaba, Hideaki Takao, Haruo Tomono, Koichi Sato, Yuji Matsuo, Hidetoshi Tsuzuki
  • Patent number: 6145981
    Abstract: It is an object of the present invention to provide a color filter manufacturing method in which an abnormality in a head is quickly detected to reduce the quantity of defective products. In order to achieve this object, there is provided a color filter manufacturing method of coloring each pixel of a color filter by discharging an ink onto a substrate using an ink-jet head, thereby manufacturing a color filter, including performing detection of a discharge failure in the ink-jet head before coloring of at least a first pixel in an effective pixel portion serving as a color filter.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: November 14, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Akahira, Hisanori Tsuda, Hiroshi Sato, Shinsuke Tsuruoka, Yoshihiro Shigemura, Hiromitsu Yamaguchi
  • Patent number: 6077718
    Abstract: A device for forming a deposited film is provided. It comprises (a) a reaction chamber; (b) a heating means for heating a substrate placed in the reaction chamber; (c) a starting gas introducing means for introducing starting gases into the reaction chamber, the gas introducing means having a means for introducing two or more kinds of gases alternately and intermittently into the reaction chamber; (d) a decomposing means for decomposing the starting gases in the reaction chamber so as to form a deposited film on the substrate heated by said heating means in the reaction chamber, the decomposing means having a light source which irradiates at least one kind of light into the reaction chamber to decompose the starting gases.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: June 20, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuji Takasu, Hisanori Tsuda, Masafumi Sano, Yutaka Hirai
  • Patent number: 5769950
    Abstract: A device for forming a deposited film is provided. It comprises (a) a reaction chamber; (b) a heating means for heating a substrate placed in the reaction chamber; (c) a starting gas introducing means for introducing starting gases into the reaction chamber, the gas introducing means having a means for introducing two or more kinds of gases alternately and intermittently into the reaction chamber; (d) a decomposing means for decomposing the starting gases in the reaction chamber so as to form a deposited film on the substrate heated by said heating means in the reaction chamber, the decomposing means having a light source which irradiates at least one kind of light into the reaction chamber to decompose the starting gases.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 23, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuji Takasu, Hisanori Tsuda, Masafumi Sano, Yutaka Hirai
  • Patent number: 5455612
    Abstract: A liquid jet recording head comprises a substrate comprising a support, a resistive heater layer, electrodes electrically connected with the resistive heater layer, a portion of the resistive heater layer located between the electrodes being an electrothermal transducer, and an upper layer comprising a first protective layer comprising an inorganic insulating material, a second protective layer comprising an inorganic material, and a third protective layer comprising an organic material, wherein and the second protective layer and the third protective layer overlap each other in the vicinity of a portion where heat is generated by the electrothermal transducer and the overlapping width of the second protective layer and the third protective layer ranges from 10 .mu.m to 500 .mu.m. In another embodiment, the second protective layer extends along plural liquid flow paths for substantially less than the length thereof in a continuous strip that covers adjacent transducers.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: October 3, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masami Ikeda, Hiroto Matsuda, Hirokazu Komuro, Hiroto Takahashi, Makoto Shibata, Hisanori Tsuda