Patents by Inventor Mitsutoshi Hasegawa

Mitsutoshi Hasegawa 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: 6511358
    Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: January 28, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshikazu Banno, Etsuro Kishi, Mitsutoshi Hasegawa, Kazuhiro Sando, Kazuya Shigeoka, Masahiko Miyamoto
  • Publication number: 20030010287
    Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Application
    Filed: September 6, 2002
    Publication date: January 16, 2003
    Inventors: Yoshikazu Banno, Etsuro Kishi, Mitsutoshi Hasegawa, Kazuhiro Sando, Kazuya Shigeoka, Masahiko Miyamoto
  • Patent number: 6489720
    Abstract: Image-forming apparatuses include getters that are suitably placed. The getters can be fixed using inorganic adhesives and function effectively by suitably setting weight ratios between getter powder and the adhesives.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: December 3, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ihachiro Gofuku, Hiroshi Takagi, Mitsutoshi Hasegawa, Kazuya Shigeoka, Yutaka Arai
  • Publication number: 20020109460
    Abstract: An image display apparatus is provided with an external housing constituted by members including first and second substrates positioned with a gap therebetween, an electron source positioned on the first substrate in the external housing, and a fluorescent film and an accelerating electrode provided on the second substrate. A first getter is positioned in the image display area in the external housing. And a second getter is so provided as to be insulated from the electron source and the accelerating electrode and as to surround the first getter.
    Type: Application
    Filed: April 5, 2002
    Publication date: August 15, 2002
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Yasuhiro Hamamoto, Kazuya Shigeoka, Yutaka Arai
  • Publication number: 20020098766
    Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Application
    Filed: March 13, 2002
    Publication date: July 25, 2002
    Inventors: Yoshikazu Banno, Etsuro Kishi, Mitsutoshi Hasegawa, Kazuhiro Sando, Kazuya Shigeoka, Masahiko Miyamoto
  • Patent number: 6419746
    Abstract: An apparatus for producing an electron-emitting thin film substrate, comprising a stage on which a substrate on which electrode pairs arranged along plural rows and columns is mounted, and a liquid droplet supplier for supplying, per each of the electrode pairs, a droplet formed from a liquid containing ingredient constituting a thin film member conducting an electron stream according to an electric field applied between the pair of electrodes during a movement relative to the substrate or the stage. The apparatus also comprises a source that provides the liquid containing ingredient constituting the thin film member to the liquid droplet supplier.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: July 16, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshikazu Banno, Etsuro Kishi, Mitsutoshi Hasegawa, Kazuhiro Sando, Kazuya Shigeoka, Masahiko Miyamoto
  • Patent number: 6409566
    Abstract: An electron source comprises a substrate, at least one row-directional wire, at least one column-directional wire intersecting the row-directional wire, at least one insulation layer arranged at the intersection of the row-directional wire and the column-directional wire, and at least one conductive film having an electron-emitting region also arranged at the intersection. The insulation layer is arranged between the row-directional wire and the column-directional wire and the conductive film is connected to both wires.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: June 25, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Yoshiyuki Osada, Hisaaki Kawade, Yuji Kasanuki, Hideshi Kawasaki, Yoshimasa Okamura
  • Patent number: 6396207
    Abstract: An image display apparatus is provided with an external housing constituted by members including first and second substrates positioned with a gap therebetween, an electron source positioned on the first substrate in the external housing, and a fluorescent film and an accelerating electrode provided on the second substrate. A first getter is positioned in the image display area in the external housing. And a second getter is so provided as to be insulated from the electron source and the accelerating electrode and as to surround the first getter.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: May 28, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Yasuhiro Hamamoto, Kazuya Shigeoka, Yutaka Arai
  • Patent number: 6390873
    Abstract: A method of producing an electron-emitting device including the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: May 21, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshikazu Banno, Etsuro Kishi, Mitsutoshi Hasegawa, Kazuhiro Sando, Kazuya Shigeoka, Masahiko Miyamoto
  • Patent number: 6383050
    Abstract: The invention provides a getter of high performance capable of immediately absorbing a gas generated in an image forming apparatus, and an image forming apparatus exhibiting little luminance variation with the lapse of time and little luminance fluctuation. It also provides a method for producing a getter at a low temperature not effecting other components and in an arbitrary position in a simple manner with a low cost, thereby being adaptable to various processes. The invention relates to a process for forming a non-evaporative getter by a gas deposition method, and to a method of producing an image forming apparatus provided with an electron source, an image forming member for forming an image by irradiation with an electron beam emitted from the electron source, and a non-evaporative getter in a container, which comprises forming the non-evaporative getter by the above-mentioned process for forming the non-evaporative getter.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 7, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junri Ishikura, Ihachiro Gofuku, Mitsutoshi Hasegawa
  • Publication number: 20020028285
    Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Application
    Filed: April 9, 1999
    Publication date: March 7, 2002
    Inventors: YOSHIKAZU BANNO, ETSURO KISHI, MITSUTOSHI HASEGAWA, KAZUHIRO SANDO, KAZUYA SHIGEOKA, MASAHIKO MIYAMOTO
  • Publication number: 20020021083
    Abstract: An electron source comprises a substrate, at least one row-directional wire, at least one column-directional wire intersecting the row-directional wire, at least one insulation layer arranged at the crossing(s) of the at least one row-directional wire and the at least one column-directional wire, and at least one conductive film having an electron-emitting region also arranged at the crossing(s). The insulation layer is arranged between the row-directional wire and the column-directional wire and the conductive film is connected to both the wires.
    Type: Application
    Filed: September 5, 2001
    Publication date: February 21, 2002
    Inventors: Mitsutoshi Hasegawa, Yoshiyuki Osada, Hisaaki Kawade, Yuji Kasanuki, Hideshi Kawasaki, Yoshimasa Okamura
  • Publication number: 20020015800
    Abstract: Disclosed herein is a process for producing a printed substrate, comprising a step of applying droplets of a liquid containing a material for a desired component to be formed on a substrate to the surface of the substrate to form the component on the substrate, wherein the process comprises, prior to the step of applying the droplets to the substrate surface, a step of subjecting the substrate to a surface treatment in such a manner that the contact angle of the droplet applied with the surface of the substrate falls within a range of from 20° to 50°.
    Type: Application
    Filed: March 23, 1998
    Publication date: February 7, 2002
    Inventors: MASAHIKO MIYAMOTO, MITSUTOSHI HASEGAWA, KAZUHIRO SANDO, KAZUYA SHIGEOKA, MASATO YAMANOBE, TAKAYUKI TESHIMA, TOSHIFUMI YOSHIOKA
  • Publication number: 20020012748
    Abstract: An electron-emitting device having an electroconductive film including an electron-emitting region arranged between a pair of device electrodes is manufactured. The electroconductive film is formed by applying a liquid containing the material of the film to a substrate by using an ink-jet method, then drying and heating the applied liquid. Defective conditions, if any, in the applied liquid or the precursor film formed by drying the liquid or the electroconductive film formed by heating the precursor film are detected and remedied by applying the same liquid again to the area detected for a defective condition. The detection and remedy of any defective condition may be conducted after the liquid-applying, drying or baking step.
    Type: Application
    Filed: October 1, 2001
    Publication date: January 31, 2002
    Inventor: Mitsutoshi Hasegawa
  • Publication number: 20020007786
    Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
    Type: Application
    Filed: April 9, 1999
    Publication date: January 24, 2002
    Inventors: YOSHIKAZU BANNO, ETSURO KISHI, MITSUTOSHI HASEGAWA, KAZUHIRO SANDO, KAZUYA SHIGEOKA, MASAHIKO MIYAMOTO
  • Patent number: 6313571
    Abstract: An electron source comprises a substrate, at least one row-directional wire, at least one column-directional wire intersecting the row-directional wire, at least one insulation layer arranged at the intersection of the row-directional wire and the column-directional wire, and at least one conductive film having an electron-emitting region also arranged at the intersection. The insulation layer is arranged between the row-directional wire and the column-directional wire and the conductive film is connected to both wires.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: November 6, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Yoshiyuki Osada, Hisaaki Kawade, Yuji Kasanuki, Hideshi Kawasaki, Yoshimasa Okamura
  • Patent number: 6309691
    Abstract: An electron-emitting device having an electroconductive film including an electron-emitting region arranged between a pair of device electrodes is manufactured. The electroconductive film is formed by applying a liquid containing the material of the film to a substrate by using an ink-jet method, then drying and heating the applied liquid. Defective conditions, if any, in the applied liquid or the precursor film formed by drying the liquid or the electroconductive film formed by heating the precursor film are detected and remedied by applying the same liquid again to the area detected for a defective condition. The detection and remedy of any defective condition may be conducted after the liquid-applying, drying or baking step.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 30, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsutoshi Hasegawa
  • Publication number: 20010024681
    Abstract: An electron-emitting device having an electroconductive film including an electron-emitting region arranged between a pair of device electrodes is manufactured. The electroconductive film is formed by applying a liquid containing the material of the film to a substrate by using an ink-jet method, then drying and heating the applied liquid. Defective conditions, if any, in the applied liquid or the precursor film formed by drying the liquid or the electroconductive film formed by heating the precursor film are detected and remedied by applying the same liquid again to the area detected for a defective condition. The detection and remedy of any defective condition may be conducted after the liquid-applying, drying or baking step.
    Type: Application
    Filed: May 25, 2001
    Publication date: September 27, 2001
    Inventor: Mitsutoshi Hasegawa
  • Patent number: 6283813
    Abstract: An image forming apparatus, according to the present invention, comprises a first substrate whereon are provided a functional element and electric wiring that is connected to the functional element, and a second substrate whereon is an area where an image is to be formed, and wherein, with the first substrate and the second substrate being located opposite to each other, space between the first substrate and the second substrate is kept in a pressure-reduced state so as to form an image in the area on the second substrate, and wherein the electric wiring is formed of a laminated conductive material by a process that plates a printed pattern, which is initially deposited by a printing process.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: September 4, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kaneko, Mitsutoshi Hasegawa, Yoshihiro Yanagisawa, Miki Tamura, Kazuhiro Sando, Noriaki Ohguri, Toru Sugeno, Osamu Takamatsu
  • Publication number: 20010017526
    Abstract: There are provided an electron source apparatus capable of suppressing variations in electron emission state from electron-emitting devices even with an arrangement using spacers (9), and an image forming apparatus using the electron source apparatus. A plurality of row-direction wiring lines (8) and a plurality of column-direction wiring lines (6) are formed on a substrate (1) so as to cross each other. An electron-emitting device made up of device electrodes (2, 3), a conductive film (4), and an electron-emitting portion 5 is formed at each intersection between the row-direction wiring line (8) and the column-direction wiring line (6). The spacers (9) are arranged on some of the row-direction wiring lines (8). The column-direction wiring lines (6) are respectively connected to controlled constant current sources (221a, 221b, 221c) serving as current sources capable of outputting desired current values.
    Type: Application
    Filed: November 30, 2000
    Publication date: August 30, 2001
    Inventors: Naoto Abe, Mitsutoshi Hasegawa