Patents by Inventor Shin Kitamura

Shin Kitamura 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: 7104859
    Abstract: In a method for manufacturing carbon fibers by means of a thermal CVD method through catalysts, the method capable of obtaining a uniform film thickness regardless of a growth position and a growth area on a substrate is provided. The substrate on which a catalyst layer is formed is disposed in a reaction container. An atmosphere in the reaction container is set to be a reduced pressure atmosphere including a carbon containing gas having a partial pressure of 10 Pa or less, and the substrate is heated in the atmosphere to grow carbon fibers on the catalyst layer.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: September 12, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeo Tsukamoto, Shinichi Kawate, Kazunari Oyama, Takahiro Sato, Shin Kitamura, Kazuya Miyazaki, Takashi Iwaki, Akira Shimazu
  • Patent number: 6933664
    Abstract: An electron emitting device includes a first electrode located on a substrate, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The second electrode has a first surface and a second surface, which are substantially vertical to a direction that the first electrode and the insulating layer are laminated. The first surface of the second electrode is in contact with the insulating layer. A higher potential than that applied to the second electrode is applied to the first electrode to emit an electron from the second surface.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: August 23, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Yoshiyuki Osada
  • Publication number: 20050134161
    Abstract: The invention provides a fiber containing carbon which is less deteriorated in terms of electron emission characteristic, is excellent in terms of reproducibility, and can in addition be formed at a low cost, a substrate and electron emission device using the fiber containing carbon, an electron source using the electron emission device, a display panel using the electron source, and an information displaying/playing apparatus using the display panel, and a method of manufacturing these. The manufacturing method comprises a first step of preparing a substrate (substrate 1) equipped with a catalyst (catalyst layer 3) on its surface; and a second step of causing the fiber containing carbon (carbon fiber 4) to grow using the catalyst, whereby the second step comprises, in order to decrease, from a midway point of time in this step, the growth rate at which the fiber containing carbon grows, a sub-step of controlling the growth conditions for the fiber containing carbon.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 23, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shin Kitamura, Takeo Tsukamoto
  • Publication number: 20050032255
    Abstract: A method for producing a durable electron-emitting device having a uniform electron emission characteristic, an electron source, and an image-forming apparatus having a uniform display characteristic for a long period are provided. The method for producing an electron-emitting device according to the present invention includes the steps of: disposing a cathode electrode on a surface of a substrate; providing an electrode opposite the cathode electrode; disposing plural pieces of fiber containing carbon as a main component on the cathode electrode; and applying potential higher than potential applied to the cathode electrode under depressurized condition to an electrode opposite the cathode electrode.
    Type: Application
    Filed: September 17, 2004
    Publication date: February 10, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shin Kitamura, Takeo Tsukamoto
  • Patent number: 6848962
    Abstract: A method for producing a durable electron-emitting device having a uniform electron emission characteristic, an electron source, and an image-forming apparatus having a uniform display characteristic for a long period are provided. The method for producing an electron-emitting device according to the present invention includes the steps of: disposing a cathode electrode on a surface of a substrate; providing an electrode opposite the cathode electrode; disposing plural pieces of fiber containing carbon as a main component on the cathode electrode; and applying potential higher than potential applied to the cathode electrode under depressurized condition to an electrode opposite the cathode electrode.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: February 1, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Takeo Tsukamoto
  • Patent number: 6843696
    Abstract: A method of producing a fiber, comprising the steps of introducing catalytic particles originally formed in a particle-forming chamber into an arraying chamber together with a carrier gas, to cause the catalytic particles to become arranged on a substrate disposed in the arraying chamber. A next step includes growing fibers, each including carbon as a major component, based on the catalytic particles arranged on the substrate. The fibers grow by heating the catalytic particles arranged on the substrate in an atmosphere containing carbon.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: January 18, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Takeo Tsukamoto, Junri Ishikura
  • Publication number: 20040245904
    Abstract: A method of producing a fiber, comprising the steps of introducing catalytic particles originally formed in a particle-forming chamber into an arraying chamber together with a carrier gas, to cause the catalytic particles to become arranged on a substrate disposed in the arraying chamber. A next step includes growing fibers, each including carbon as a major component, based on the catalytic particles arranged on the substrate. The fibers grow by heating the catalytic particles arranged on the substrate in an atmosphere containing carbon.
    Type: Application
    Filed: June 30, 2004
    Publication date: December 9, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Takeo Tsukamoto, Junri Ishikura
  • Publication number: 20040192151
    Abstract: In a method for manufacturing carbon fibers by means of a thermal CVD method through catalysts, the method capable of obtaining a uniform film thickness regardless of a growth position and a growth area on a substrate is provided. The substrate on which a catalyst layer is formed is disposed in a reaction container. An atmosphere in the reaction container is set to be a reduced pressure atmosphere including a carbon containing gas having a partial pressure of 10 Pa or less, and the substrate is heated in the atmosphere to grow carbon fibers on the catalyst layer.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 30, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeo Tsukamoto, Shinichi Kawate, Kazunari Oyama, Takahiro Sato, Shin Kitamura, Kazuya Miyazaki, Takashi Iwaki, Akira Shimazu
  • Publication number: 20030209992
    Abstract: An electron emitting device includes a first electrode located on a substrate, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The second electrode has a first surface and a second surface, which are substantially vertical to a direction that the first electrode and the insulating layer are laminated. The first surface of the second electrode is in contact with the insulating layer. A higher potential than that applied to the second electrode is applied to the first electrode to emit an electron from the second surface.
    Type: Application
    Filed: June 19, 2003
    Publication date: November 13, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shin Kitamura, Yoshiyuki Osada
  • Patent number: 6624589
    Abstract: An electron emitting device includes a first electrode located on a substrate, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The second electrode has a first surface and a second surface, which are substantially vertical to a direction that the first electrode and the insulating layer are laminated. The first surface of the second electrode is in contact with the insulating layer. A higher potential than that applied to the second electrode is applied to the first electrode to emit an electron from the second surface.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: September 23, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Yoshiyuki Osada
  • Publication number: 20030048056
    Abstract: A method of producing a fiber, comprising the steps of introducing catalytic particles originally formed in a particle-forming chamber into an arraying chamber together with a carrier gas, to cause the catalytic particles to become arranged on a substrate disposed in the arraying chamber. A next step includes growing fibers, each including carbon as a major component, based on the catalytic particles arranged on the substrate. The fibers grow by heating the catalytic particles arranged on the substrate in an atmosphere containing carbon.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 13, 2003
    Inventors: Shin Kitamura, Takeo Tsukamoto, Junri Ishikura
  • Publication number: 20020047562
    Abstract: An electron emitting device includes a first electrode located on a substrate, an insulating layer located on the first electrode, and a second electrode located on the insulating layer. The second electrode has a first surface and a second surface, which are substantially vertical to a direction that the first electrode and the insulating layer are laminated. The first surface of the second electrode is in contact with the insulating layer. A higher potential than that applied to the second electrode is applied to the first electrode to emit an electron from the second surface.
    Type: Application
    Filed: May 29, 2001
    Publication date: April 25, 2002
    Inventors: Shin Kitamura, Yoshiyuki Osada
  • Publication number: 20020031972
    Abstract: A method for producing a durable electron-emitting device having a uniform electron emission characteristic, an electron source, and an image-forming apparatus having a uniform display characteristic for a long period are provided. The method for producing an electron-emitting device according to the present invention includes the steps of: disposing a cathode electrode on a surface of a substrate; providing an electrode opposite the cathode electrode; disposing plural pieces of fiber containing carbon as a main component on the cathode electrode; and applying potential higher than potential applied to the cathode electrode under depressurized condition to an electrode opposite the cathode electrode.
    Type: Application
    Filed: August 29, 2001
    Publication date: March 14, 2002
    Inventors: Shin Kitamura, Takeo Tsukamoto