Patents by Inventor Kazuyuki Seino
Kazuyuki Seino 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).
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Patent number: 7679279Abstract: 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: GrantFiled: August 6, 2007Date of Patent: March 16, 2010Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Patent number: 7511425Abstract: 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: GrantFiled: August 25, 2005Date of Patent: March 31, 2009Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Patent number: 7439661Abstract: 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: GrantFiled: August 18, 2005Date of Patent: October 21, 2008Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Yasue Sato, Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Tomoko Narusawa, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20080174227Abstract: 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: ApplicationFiled: August 6, 2007Publication date: July 24, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Patent number: 7308819Abstract: 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: GrantFiled: May 4, 2006Date of Patent: December 18, 2007Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Patent number: 7301269Abstract: 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: GrantFiled: August 25, 2005Date of Patent: November 27, 2007Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Patent number: 7294034Abstract: The evacuated envelope of an image display apparatus has a rear substrate, a front substrate opposing the rear substrate, and a sidewall interposed between the rear and front substrates. A phosphor screen is formed on the inner surface of the front substrate. Electron-emitting elements are provided on the rear substrate. An indium layer is formed on a sealing surface lying between the front substrate and the sidewall. When the indium layer is heated and melted in a vacuum atmosphere, the front and rear substrates are sealed to each other, with the sidewall interposed between them.Type: GrantFiled: July 24, 2002Date of Patent: November 13, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Akiyoshi Yamada, Takashi Nishimura, Hirotaka Murata, Kazuyuki Seino
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Patent number: 7279846Abstract: 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: GrantFiled: August 17, 2005Date of Patent: October 9, 2007Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20060208626Abstract: 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: ApplicationFiled: May 4, 2006Publication date: September 21, 2006Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Patent number: 7108573Abstract: 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: GrantFiled: October 14, 2003Date of Patent: September 19, 2006Assignees: Canon Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Publication number: 20060078433Abstract: A sputter ion pump comprises a metal pump container. In the pump container are arranged a cathode and an anode opposed to each other in the pump container and a permanent magnet situated between the cathode and the inner surface of the pump container. After locating the anode, cathode, and magnetic material in the pump container, the magnetic material is magnetized from outside the pump container, thereby forming the permanent magnet.Type: ApplicationFiled: November 18, 2005Publication date: April 13, 2006Inventors: Kazuyuki Seino, Yoshiyuki Shimada
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Publication number: 20060055637Abstract: 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: ApplicationFiled: August 17, 2005Publication date: March 16, 2006Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20060049734Abstract: 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: ApplicationFiled: August 18, 2005Publication date: March 9, 2006Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Yasue Sato, Masaru Kamio, Ihachiro Gofuku, Hisanori Tsuda, Tomoko Narusawa, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20060043866Abstract: 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: ApplicationFiled: August 25, 2005Publication date: March 2, 2006Applicants: CANON KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Hisanori Tsuda, Masaru Kamio, Ihachiro Gofuku, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20060043865Abstract: 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: ApplicationFiled: August 25, 2005Publication date: March 2, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Ihachiro Gofuku, Masaru Kamio, Hisanori Tsuda, Yasue Sato, Yoshiyuki Shimada, Hiromasa Mitani, Kazuyuki Seino, Takashi Nishimura
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Publication number: 20050130546Abstract: At least one substrate, a front substrate or a rear substrate, is opposed to a processing electrode in a vacuum atmosphere, and an electric field is applied between the at least one substrate and the processing electrode, whereby the substrate is electric field-processed. After the electric field processing, the front substrate and the rear substrate kept in the vacuum atmosphere are sealed together to form an envelope.Type: ApplicationFiled: February 4, 2005Publication date: June 16, 2005Inventors: Masakuni Osoegawa, Satoshi Koide, Yuuji Kuwabara, Kazuyuki Seino, Hirotaka Murata
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Patent number: 6858982Abstract: A vacuum envelope of an image display apparatus has a rear substrate and a front substrate, which are opposed to each other, and a plurality of electron emitting elements are located in the vacuum envelope. The respective peripheral portions of the front substrate and the rear substrate are sealed together with a sealing layer between them. A diffusion layer that contains a component of the sealing layer is formed on the substrate side of an interface between the sealing layer and the front substrate and/or the rear substrate.Type: GrantFiled: June 25, 2004Date of Patent: February 22, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Akiyoshi Yamada, Kazuyuki Seino, Masahiro Yokota, Takashi Nishimura
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Publication number: 20050017634Abstract: 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: ApplicationFiled: October 14, 2003Publication date: January 27, 2005Applicant: Canon Kabushiki KaishaInventors: Masaru Kamio, Yasue Sato, Kazuyuki Seino, Hiromasa Mitani
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Publication number: 20040232824Abstract: A vacuum envelope of an image display apparatus has a rear substrate and a front substrate, which are opposed to each other, and a plurality of electron emitting elements are located in the vacuum envelope. The respective peripheral portions of the front substrate and the rear substrate are sealed together with a sealing layer between them. A diffusion layer that contains a component of the sealing layer is formed on the substrate side of an interface between the sealing layer and the front substrate and/or the rear substrate.Type: ApplicationFiled: June 25, 2004Publication date: November 25, 2004Inventors: Akiyoshi Yamada, Kazuyuki Seino, Masahiro Yokota, Takashi Nishimura
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Publication number: 20040172975Abstract: In joining the end portions of belt-shaped glass sheets, the end portions of belt-shaped glass sheets are thermally softened after the end portions are located so that they overlap each other within the range of the glass sheet width. Lap portions of the thermally softened end portions are clamped at least once from both sides in the thickness direction of the belt-shaped glass sheets by means of pressure dies. Thus, the lap portions are joined together to be adjusted to the thickness of the belt-shaped glass sheets.Type: ApplicationFiled: March 11, 2004Publication date: September 9, 2004Inventors: Koji Hirota, Kazuyuki Seino, Takashi Nishimura