Patents by Inventor Kazuya Miyazaki

Kazuya Miyazaki 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).

  • Publication number: 20070099066
    Abstract: An electrode catalyst layer, capable of having high catalytic activity in a small thickness, for use in a polymer electrolyte fuel cell has an entangled structure (cobweb-like structure). The electrode catalyst layer is produced through a process including a step of forming a thin film with a film-forming material containing a combination of platinum, oxygen, and nitrogen, a combination of platinum, oxygen, and boron, or a combination of platinum, oxygen, nitrogen, and boron, and a step of forming a catalyst material which has the entangled structure and principally contains platinum as a main component by reducing the film-forming material.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 3, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshinobu Okumura, Kazuhiro Yamada, Kazuya Miyazaki, Masaaki Shibata
  • 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
  • Publication number: 20060189243
    Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film. The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 ?m, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm?1 is greater than a peak (P1) located in the vicinity of 1,335 cm?1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm?1 is not greater than 150 cm?1.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 24, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Fumio Kishi, Masato Yamanobe, Takeo Tsukamoto, Toshikazu Ohnishi, Keisuke Yamamoto, Sotomitsu Ikeda, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Patent number: 7077716
    Abstract: In a process of reducing a resistivity of a polymer film for carbonization in a surface conduction electron-emitting device, by irradiating an energy beam onto the polymer film, when an energy intensity of the beam given in a unit area in a unit time is assumed to be W W/m2, W satisfies a formula W?2×T×(?sub·Csub·?sub/?)1/2, where T is defined as a temperature ° C. at which the polymer film is heated for one hour in a vacuum degree of 1×10?4 Pa to reduce a resistivity of the polymer film to 0.1 ?·cm, Csub is a specific heat J/kg·K of the substrate, ?sub is a specific gravity kg/m3 of the substrate, ?sub is a heat conductivity W/m·K of the substrate, and ? is an irradiation time in the range of 10?9 sec to 10 sec.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: July 18, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Mizuno, Takashi Iwaki, Toshihiko Takeda, Kazuya Miyazaki, Koki Nukanobu
  • Patent number: 7057336
    Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film. The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 ?m, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm?1 is greater than a peak (P1) located in the vicinity of 1,335 cm?1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm?1 is not greater than 150 cm?1.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: June 6, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumio Kishi, Masato Yamanobe, Takeo Tsukamoto, Toshikazu Ohnishi, Keisuke Yamamoto, Sotomitsu Ikeda, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Publication number: 20060042501
    Abstract: In order to obtain a high polishing efficiency by maintaining pH value of polishing liquid constant for a long time, as a polishing liquid used upon polishing the surface of a semiconductor wafer using an abrasive grain fixed polishing pad in which abrasive grains are incorporated in a polishing pad, it is prepared by mixing at least an inorganic alkali, a salt, and an organic alkali.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 2, 2006
    Inventor: Kazuya Miyazaki
  • Patent number: 6992428
    Abstract: The present invention provides an electron emitting device including electrodes disposed with a space therebetween on a surface of a substrate, a carbon film disposed between the electrodes and connected to one of the electrodes, and a gap disposed between the carbon film and the other electrode. In the gap, the distance between the edge of the carbon film connected to one of the electrode and the edge of the other electrode at an upper position apart from the surface of the substrate is smaller than that at the surface of the substrate. The present invention also provides an electron source and an image display device each including the electron emitting device.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masafumi Kyogaku, Hironobu Mizuno, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Publication number: 20050276096
    Abstract: An electron emission apparatus can effectively suppress the adverse effect of electric discharges that can take place between the oppositely disposed electrodes of the apparatus to which a high voltage is applied by dividing the electrode adapted to have a higher electric potential into segments in order to reduce the electrostatic capacitance between the electrodes. In the case of an electron emission apparatus comprising electron-emitting devices, said plurality of electron-emitting devices are disposed such that the direction along which those that can be driven simultaneously are arranged is not parallel with the direction along which the electrode is divided into the electrode segments in order to reduce the variable range of the electric current that can flow in the segments.
    Type: Application
    Filed: September 3, 2003
    Publication date: December 15, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshitami Hara, Kazuya Miyazaki, Akihiko Yamano
  • Publication number: 20050164591
    Abstract: In a process of reducing a resistivity of a polymer film for carbonization in a surface conduction electron-emitting device, by irradiating an energy beam onto the polymer film, when an energy intensity of the beam given in a unit area in a unit time is assumed to be W W/m2, W satisfies a formula W?2×T×(?sub·Csub·?sub/?)1/2, where T is defined as a temperature ° C. at which the polymer film is heated for one hour in a vacuum degree of 1×10?4 Pa to reduce a resistivity of the polymer film to 0.1 ?·cm, Csub is a specific heat J/kg·K of the substrate, ?sub is a specific gravity kg/m3 of the substrate, ?sub is a heat conductivity W/m·K of the substrate, and ? is an irradiation time in the range of 10?9 sec to 10 sec.
    Type: Application
    Filed: March 18, 2005
    Publication date: July 28, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hironobu Mizuno, Takashi Iwaki, Toshihiko Takeda, Kazuya Miyazaki, Koki Nukanobu
  • Patent number: 6912512
    Abstract: A digital contents distribution system that generates first execution verify logic, second execution verify logic and execution verify logic conversion software. The first execution verify logic and second execution verify logic each carry out the verification and execution control of contents, and the first execution verify logic is linked with the contents at first. The execution verify logic conversion software includes execution verify logic converter for replacing the first execution verify logic with the second execution verify logic to relink the latter with the contents. A user terminal is provided with the contents linked with the first execution verify logic, and the execution verify logic conversion software.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: June 28, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuya Miyazaki, Harumitsu Nakajima, Tetsuo Nakakawaji
  • Patent number: 6896571
    Abstract: In a process of reducing a resistivity of a polymer film for carbonization in a surface conduction electron-emitting device, by irradiating an energy beam onto the polymer film, when an energy intensity of the beam given in a unit area in a unit time is assumed to be W W/m2, W satisfies a formula W?2×T×(?sub·Csub·?sub/?)1/2, where T is defined as a temperature ° C. at which the polymer film is heated for one hour in a vacuum degree of 1×10?4 Pa to reduce a resistivity of the polymer film to 0.1 ?·cm, Csub is a specific heat J/kg·K of the substrate, ?sub is a specific gravity kg/m3 of the substrate, ?sub is a heat conductivity W/m·K of the substrate, and ? is an irradiation time in the range of 10?9 sec to 10 sec.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 24, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Mizuno, Takashi Iwaki, Toshihiko Takeda, Noritake Suzuki, Kazuya Miyazaki, Koki Nukanobu
  • Patent number: 6831399
    Abstract: The present invention provides an electron emitting device including electrodes disposed with a space therebetween on a surface of a substrate, a carbon film disposed between the electrodes and connected to one of the electrodes, and a gap disposed between the carbon film and the other electrode. In the gap, the distance between the edge of the carbon film connected to one of the electrode and the edge of the other electrode at an upper position apart from the surface of the substrate is smaller than that at the surface of the substrate. The present invention also provides an electron source and an image display device each including the electron emitting device.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: December 14, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masafumi Kyogaku, Hironobu Mizuno, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Publication number: 20040209554
    Abstract: An abrasive obtained by curing raw materials containing at least (1) an organic polyisocyanate and at least one member selected from an organic polyol and an organic polyamine as matrix resin materials, and (2) a particle containing a predetermined amount of a hydroxyl group and/or colloidal silica and the like as an abrasive particle(s), by a polymerization reaction, the matrix resin being a resin having an urethane bond and/or an urea bond.
    Type: Application
    Filed: January 30, 2004
    Publication date: October 21, 2004
    Inventors: Akio Tsumagari, Kazunori Ishikawa, Kazuya Miyazaki, Kazuhisa Arai
  • 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
  • Patent number: 6781667
    Abstract: This invention provides an image-forming apparatus manufacturing method capable of simplifying the electron-emitting device forming process and manufacturing a low-cost image-forming apparatus exhibiting high display quality for a long term. A plurality of electrode pairs each formed from electrodes are formed on a first substrate. Polymer films for connecting the electrodes are arranged. Then, the polymer films are irradiated with a laser beam or particle beam to reduce the resistances at least partially and change the polymer films into conductive films containing carbon as a main component. A current is flowed between the electrodes to form gaps in parts of the conductive films. The first substrate, and the second substrate on which an image-forming member is arranged are joined via bonding in a reduced-pressure atmosphere, constituting an image-forming apparatus.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: August 24, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Horiguchi, Hironobu Mizuno, Takashi Iwaki, Masaaki Shibata, Kazuya Miyazaki
  • Patent number: 6677706
    Abstract: An electron emission apparatus effectively suppresses the adverse effect of electric discharges that can take place between the oppositely disposed electrodes of the apparatus to which a high voltage is applied by dividing the electrode adapted to have a higher electric potential into segments in order to reduce the electrostatic capacitance between the electrodes. In the case of an electron emission apparatus comprising electron-emitting devices, a plurality of electron-emitting devices are disposed such that the direction along which those that can be driven simultaneously are arranged is not parallel with the direction along which the electrode is divided into the electrode segments in order to reduce the variable range of the electric current that can flow in the segments.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: January 13, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshitami Hara, Kazuya Miyazaki, Akihiko Yamano
  • Publication number: 20030222570
    Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite-film. The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 &mgr;m, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm−1 is greater than a peak (P1) located in the vicinity of 1,335 cm−1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm−1 is not greater than 150 cm−1.
    Type: Application
    Filed: March 20, 2003
    Publication date: December 4, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Fumio Kishi, Masato Yamanobe, Takeo Tsukamoto, Toshikazu Ohnishi, Keisuke Yamamoto, Sotomitsu Ikeda, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Publication number: 20030162465
    Abstract: In a process of reducing a resistivity of a polymer film for carbonization in a surface conduction electron-emitting device, by irradiating an energy beam onto the polymer film, when an energy intensity of the beam given in a unit area in a unit time is assumed to be W W/m2, W satisfies a formula W≧2×T×(&rgr;sub·Csub·&lgr;sub/T)1/2, where T is defined as a temperature ° C. at which the polymer film is heated for one hour in a vacuum degree of 1×10−4 Pa to reduce a resistivity of the polymer film to 0.1 &OHgr;·cm, Csub is a specific heat J/kg·K of the substrate, &rgr;sub is a specific gravity kg/m3 of the substrate, &lgr;sub is a heat conductivity W/m·K of the substrate, and T is an irradiation time in the range of 10−9 sec to 10 sec.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 28, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hironobu Mizuno, Takashi Iwaki, Toshihiko Takeda, Noritake Suzuki, Kazuya Miyazaki, Koki Nukanobu
  • Patent number: 6608437
    Abstract: An electron-emitting device includes a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film. The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 &mgr;m, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm−1 is greater than a peak (P1) located in the vicinity of 1,335 cm−1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm−1 is not greater than 150 cm−1.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: August 19, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumio Kishi, Masato Yamanobe, Takeo Tsukamoto, Toshikazu Ohnishi, Keisuke Yamamoto, Sotomitsu Ikeda, Yasuhiro Hamamoto, Kazuya Miyazaki
  • Publication number: 20030124944
    Abstract: The present invention provides an electron emitting device including electrodes disposed with a space therebetween on a surface of a substrate, a carbon film disposed between the electrodes and connected to one of the electrodes, and a gap disposed between the carbon film and the other electrode. In the gap, the distance between the edge of the carbon film connected to one of the electrode and the edge of the other electrode at an upper position apart from the surface of the substrate is smaller than that at the surface of the substrate. The present invention also provides an electron source and an image display device each including the electron emitting device.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 3, 2003
    Inventors: Masafumi Kyogaku, Hironobu Mizuno, Yasuhiro Hamamoto, Kazuya Miyazaki