Patents by Inventor Sashiro Uemura

Sashiro Uemura 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: 20050083267
    Abstract: In a method of manufacturing a control electrode structure for a flat display that uses a field emission type electron source, a field control electrode is formed on one surface of an insulating substrate, a control electrode is formed on the other surface of the insulating substrate, and an insulating layer is formed on the control electrode. After the field control electrode, insulating substrate, control electrode, and insulating layer are formed, an electron-passing hole is formed at once which extends through the field control electrode, insulating substrate, control electrode, and insulating layer which are stacked on each other.
    Type: Application
    Filed: October 19, 2004
    Publication date: April 21, 2005
    Inventors: Junko Yotani, Sashiro Uemura
  • Publication number: 20050013762
    Abstract: In a carbon nanotube manufacturing method, a substrate made of a carbon-containing metal material is arranged in a reactor in which a carbon source gas has been introduced. A plurality of carbon nanotubes are grown at a first temperature by chemical vapor deposition. Thereafter, the substrate is heated at a second temperature lower than the first heating temperature to grow the plurality of carbon nanotubes longer on the substrate.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 20, 2005
    Inventors: Hiroyuki Kurachi, Sashiro Uemura
  • Patent number: 6806637
    Abstract: A flat display includes a glass substrate, field emission type electron-emitting source, a front glass member, an electron extracting electrode, and a phosphor film. The electron-emitting source is mounted on the substrate. The front glass member opposes the substrate through a vacuum space and has light transmittance at least partially. The electron extracting electrode has an electron passing hole and is set away from the electron-emitting source to oppose the substrate. The phosphor film is formed on that surface of the front glass member which opposes the substrate. The electron-emitting source includes a plate-like metal member and a coating film. The plate-like metal member has a large number of through holes and serves as a growth nucleus for nanotube fibers. The coating film is formed of nanotubes that cover a surface of the metal member and inner walls of the through holes. A method of mounting a field emission type electron-emitting source is also disclosed.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: October 19, 2004
    Assignee: Noritake Co., Ltd.
    Inventors: Sashiro Uemura, Junko Yotani, Takeshi Nagasako
  • Patent number: 6652923
    Abstract: An electron-emitting source includes a substrate and a coating film. The substrate is made of a material containing a metal serving as a growth nucleus for nanotube fibers as a main component, and has a plurality of through holes. The coating film is constituted by nanotube fibers formed on a surface of the substrate and wall surfaces of the through holes. A method of manufacturing an electron-emitting source is also disclosed.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 25, 2003
    Assignees: ISE Electronics Corporation, Nihon Shinku Gijutsu Kabushiki Kaisha
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hirohiko Murakami
  • Patent number: 6624566
    Abstract: A vacuum fluorescent display includes a front glass member, substrate, control electrode, plate-like field emission type electron-emitting source, mesh-like electron extracting electrode, and phosphor film. The front glass member has light transmission properties at least partly, and the substrate opposes the front glass member through a vacuum space. The control electrode is formed on an inner surface of the substrate. The plate-like field emission type electron-emitting source with a plurality of through holes is arranged in the vacuum space to be spaced apart from the control electrode. The mesh-like electron extracting electrode is formed between the field emission type electron-emitting source and the front glass member to be spaced apart from the field emission type electron-emitting source. The phosphor film is formed inside the front glass member.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: September 23, 2003
    Assignees: Ise Electronics Corporation, Noritake Co., Ltd.
    Inventors: Sashiro Uemura, Junko Yotani, Takeshi Nagasako, Hiromu Yamada, Hiroyuki Kurachi
  • Publication number: 20030127965
    Abstract: A flat-panel display includes a front glass, glass substrate, cathodes, gate electrodes, phosphor films, and anodes. The front glass has translucency at least partly. The substrate is placed to oppose the front glass through a vacuum space. The cathodes are formed on the substrate. The gate electrodes are placed in the vacuum space and spaced apart from the cathodes. The phosphor layers and anodes are formed on a surface of the front glass which opposes the substrate. Each cathode includes a metal member having many opening portions which is mounted on the substrate, and a conductive material containing carbon nanotubes filled in the mesh-like opening portions. A method of manufacturing a flat-panel display is also disclosed.
    Type: Application
    Filed: December 11, 2002
    Publication date: July 10, 2003
    Inventors: Sashiro Uemura, Junko Yotani
  • Patent number: 6522055
    Abstract: An electron-emitting source includes a substrate and a coating film. The substrate is made of a material containing a metal serving as a growth nucleus for nanotube fibers as a main component, and has a plurality of through holes. The coating film is constituted by nanotube fibers formed on a surface of the substrate and wall surfaces of the through holes. A method of manufacturing an electron-emitting source is also disclosed.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: February 18, 2003
    Assignees: Novitake Itron Corporation, Nihon Shinku Gijutsu Kabushiki Kaisha
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hirohiko Murakami
  • Publication number: 20030013372
    Abstract: An electron-emitting source includes a substrate and a coating film. The substrate is made of a material containing a metal serving as a growth nucleus for nanotube fibers as a main component, and has a plurality of through holes. The coating film is constituted by nanotube fibers formed on a surface of the substrate and wall surfaces of the through holes. A method of manufacturing an electron-emitting source is also disclosed.
    Type: Application
    Filed: September 12, 2002
    Publication date: January 16, 2003
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hirohiko Murakami
  • Publication number: 20030001478
    Abstract: Disclosed is an electrode for an electron source, a method for producing the same, and an electronic tube using the same which provide a decreased thickness of an electron emitting source, and an improved current distribution percentage. The electronic tube comprises a substrate, an electron emitting source area formed on the substrate, and a shield area around the electron emitting area. The shield area is formed of a material that does not produce an electron emitting source, when the electron emitting source is produced by a dry method. As a result, if a space between an electron drawing electrode and the electrode for the electron source is narrow, the percentage of anode current increases in the total current, thereby improving the current distribution percentage.
    Type: Application
    Filed: June 7, 2002
    Publication date: January 2, 2003
    Inventors: Tomotaka Ezaki, Sashiro Uemura, Junko Yotani, Hiromu Yamada, Takeshi Nagasako, Hiroyuki Kurachi, Kazunori Tatsuda, Yukiharu Seko, Tsuyoshi Maesoba
  • Publication number: 20020024296
    Abstract: A vacuum fluorescent display includes a front glass member, substrate, control electrode, plate-like field emission type electron-emitting source, mesh-like electron extracting electrode, and phosphor film. The front glass member has light transmission properties at least partly, and the substrate opposes the front glass member through a vacuum space. The control electrode is formed on an inner surface of the substrate. The plate-like field emission type electron-emitting source with a plurality of through holes is arranged in the vacuum space to be spaced apart from the control electrode. The mesh-like electron extracting electrode is formed between the field emission type electron-emitting source and the front glass member to be spaced apart from the field emission type electron-emitting source. The phosphor film is formed inside the front glass member.
    Type: Application
    Filed: August 28, 2001
    Publication date: February 28, 2002
    Inventors: Sashiro Uemura, Junko Yotani, Takeshi Nagasako, Hiromu Yamada, Hiroyuki Kurachi
  • Publication number: 20020024290
    Abstract: A vacuum fluorescent display includes a cathode electrode, grid electrode, anode electrode, at least one envelope, phosphor screen, and cap. The cathode electrode emits electrons. The grid electrode extracts the electrons from the cathode electrode. The anode electrode accelerates the electrons extracted from the cathode electrode. The envelope accommodates the cathode electrode, grid electrode, and anode electrode in a vacuum space and has a phosphor screen plate having light transmission properties. The phosphor screen is formed on an inner surface of the phosphor screen plate of the envelope and adapted to emit light upon bombardment of the electrons accelerated by the anode electrode. The cap is made of an X-ray shielding material and supported outside the envelope so as to surround the phosphor screen plate of the envelope through a gap. The cap has a light exit portion from which the light emitted from the phosphor screen emerges through the phosphor screen plate of the envelope.
    Type: Application
    Filed: August 23, 2001
    Publication date: February 28, 2002
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hiroyuki Kurachi, Hiromu Yamada, Tomotaka Ezaki
  • Publication number: 20020021082
    Abstract: A vacuum fluorescent display includes a front glass member, substrate, phosphor film, an electron-emitting portion, electron extracting electrode, and insulating support member. The front glass member has light transmission properties at least partly. The substrate opposes the front glass member through a vacuum space. The phosphor film is formed on that surface of the front glass member which opposes the substrate and has a predetermined display pattern. The electron-emitting portion is mounted on the substrate to oppose the phosphor film, and has an electron-emitting surface corresponding to the display pattern. The electron extracting electrode is arranged in the vacuum space between the electron-emitting portion and the phosphor film to be spaced apart from the electron-emitting portion by a predetermined distance.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 21, 2002
    Inventors: Sashiro Uemura, Junko Yotani, Takeshi Nagasako, Kazuo Kobayashi, Hiroyuki Kurachi
  • Publication number: 20020003399
    Abstract: A flat display includes a glass substrate, field emission type electron-emitting source, a front glass member, an electron extracting electrode, and a phosphor film. The electron-emitting source is mounted on the substrate. The front glass member opposes the substrate through a vacuum space and has light transmittance at least partially. The electron extracting electrode has an electron passing hole and is set away from the electron-emitting source to oppose the substrate. The phosphor film is formed on that surface of the front glass member which opposes the substrate. The electron-emitting source includes a plate-like metal member and a coating film. The plate-like metal member has a large number of through holes and serves as a growth nucleus for nanotube fibers. The coating film is formed of nanotubes that cover a surface of the metal member and inner walls of the through holes. A method of mounting a field emission type electron-emitting source is also disclosed.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 10, 2002
    Inventors: Sashiro Uemura, Junko Yotani, Takeshi Nagasako
  • Publication number: 20010028209
    Abstract: An electron-emitting source includes a substrate and a coating film. The substrate is made of a material containing a metal serving as a growth nucleus for nanotube fibers as a main component, and has a plurality of through holes. The coating film is constituted by nanotube fibers formed on a surface of the substrate and wall surfaces of the through holes. A method of manufacturing an electron-emitting source is also disclosed.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 11, 2001
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Hirohiko Murakami
  • Patent number: 6239547
    Abstract: An electron-emitting source of this invention includes at least a carbon nanotube formed from a columnar graphite layer. Electron are emitted from the tip of the carbon nanotube.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: May 29, 2001
    Assignee: Ise Electronics Corporation
    Inventors: Sashiro Uemura, Takeshi Nagasako, Junko Yotani, Mitsuaki Morikawa, Yahachi Saito
  • Patent number: 5844358
    Abstract: A light emitting device is provided including a front panel on which fluorescent elements are arranged in a matrix form and a rear panel onwhich cathodes are arranged in a corresponding relation to the fluorescent elements. The cathodes emit thermoelectrons for causing the fluorescent elements to emit light, and a square frame-like spacer is provided, one opening portionof the spacer being covered with the front panel and the other opening portion thereof covered with the rear panel. A stepped portion for fitting with the spacer is formed in a position of the rear panel to be bonded with the spacer.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: December 1, 1998
    Assignee: ISE Electronics Corporation
    Inventors: Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Kazunori Tatsuda, Yukiharu Seko, Hiroshi Kamogawa, Tokuhide Shimojyo, Zenichiro Hara, Nobuo Terazaki, Shunichi Futatsuishi, Kozaburo Shibayama, Shuji Iwata
  • Patent number: 5581149
    Abstract: A display tube for a light source including a translucent face glass assembly having a front surface side which is formed spherically, a peripheral portion on which a step portion is formed, inner surface side on which a phosphor layer and a metallized film are sequentially formed, and a contact segment having one end connected to the metallized film. A glass bulb is provided having one open end portion sealed to the step portion of the translucent face glass assembly with low-melting frit glass. A stem assembly is provided having a anode electrode assembly and a cathode assembly mounted therein. The anode electrode assembly and the cathode assembly are accommodated in the glass bulb. The contact segment is contacted by the anode electrode assembly, the stem assembly being hermetically sealed at the other open end portion of the glass bulb. A high voltage applied to the anode assembly accommodated in the glass bulb is applied to the metallized film through the path of the contact segment.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: December 3, 1996
    Assignee: ISE Electronics Corporation
    Inventors: Yukiharu Seko, Hiroshi Kamogawa, Sashiro Uemura, Mitsuaki Morikawa, Tokuhide Shimojo
  • Patent number: 5406170
    Abstract: The present invention relates to light emitting devices which emit light upon impingement of thermoelectrons on a front panel having fluorescent elements and where an array of cathodes and electrodes are provided on a substrate within each light emitting device. Thus, in the present invention, first electrode leads having a coefficient of thermal expansion substantially equal to that of the substrate are inserted into and through the substrate, and second electrode leads having a coefficient of thermal expansion substantially equal to that of the rear panel are inserted into and through the rear panel, and the first and second electrode leads are connected such that the substrate is supported at a distance above the rear panel.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: April 11, 1995
    Assignees: Ise Electronics Corporation, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Kazunori Tatsuda, Yukiharu Seko, Hiroshi Kamogawa, Tokuhide Shimojyo, Zenichiro Hara, Nobuo Terazaki, Shunichi Futatsuishi, Kozaburo Shibayama, Shuji Iwata
  • Patent number: 5304083
    Abstract: The present invention relates to a light emitting device which emits light upon impingement of thermoelectrons on a front panel having fluorescent elements. In each bonding surface of a spacer which is bonded to both front and rear panels, a positional deviation or displacement of the spacer with respect to the front panel, the rear panel or a shielding electrode is prevented, whereby there is obtained a light emitting device of high accuracy free of variations in luminance, and it is made possible to reduce a dead space between adjacent light emitting devices and thereby attain a display of high resolution. In order to obtain such display, the front panel and the spacer, as well as the rear panel and the spacer, are respectively bonded through premolded frit glass.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: April 19, 1994
    Assignees: Ise Electronics Corporation, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Kazunori Tatsuda, Yukiharu Seko, Hiroshi Kamogawa, Tokuhide Shimojyo, Zenichiro Hara, Nobuo Terazaki, Shunichi Futatsuishi, Kozaburo Shibayama, Shuji Iwata
  • Patent number: 4688030
    Abstract: In a fluorescent display device, a light-emitting display section and a drive section for controlling the light-emitting display section are formed on a single semiconductor substrate to constitute an integrated semiconductor substrate, and the integrated semiconductor substrate and a cathode opposing a surface of the integrated semiconductor substrate which has the light-emitting display section thereon are hermetically sealed in a vacuum chamber having at least one light-transmitting surface. The light-emitting display section has a plurality of light-emitting elements in a matrix form. Each of the light-emitting elements is constituted by a static random access memory of a flip-flop and a drive transistor, a first terminal of which is connected to one of Q and Q output terminals of the flip-flop, a second terminal of which is connected to a phosphor screen electrode, and a third terminal of which is connected to a power source line.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: August 18, 1987
    Assignee: ISE Electronics Corporation
    Inventors: Sashiro Uemura, Motoo Iwade