Patents by Inventor Nobuhiko Hosotani

Nobuhiko Hosotani 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: 7755269
    Abstract: It is an object of the present invention to provide a spacer which has an adequate Young's modulus for a spacer used in an image display panel and allows free adjustment of an electric resistance value, and an image display panel using the spacer. The spacer SPC holds a gap between a back panel PNL1 including a signal line CL, a scanning line GL, and an electronic source ELS provided for the main surface of a back substrate SUB1, and a front panel PNL2 including a fluorescent material PH, a black matrix BM, and an anode AD provided for the main surface of a front substrate SUB2. The spacer comprises phosphate glass including the same transition metal element with different valences. For electrical conduction, the included same transition metal element with different valences allows the use of hopping conduction between transition metal atoms with different valences to perform adjustment of electric resistance relatively easily.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: July 13, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Nobuhiko Hosotani, Hiroshi Ito, Keiichi Kanazawa, Takashi Naitou, Hiroyuki Akata, Mitsuo Hayashibara, Shigemi Hirasawa, Motoyuki Miyata, Hiroki Yamamoto
  • Publication number: 20090102822
    Abstract: The present invention provides an integral-type liquid crystal display module having a first display panel and a second display panel which can use a display panel of high resolution as the second display panel. The display device includes a first display panel, a second display panel, and a first flexible printed circuit board which connects the first display panel and the second display panel. Here, the first display panel includes display drive means. Video lines of the second display panel are connected with the display drive means through connection lines for video lines of the first flexible printed circuit board. Further, the second display panel includes scanning line drive means which supplies drive voltages to scanning lines of the second display panel.
    Type: Application
    Filed: December 16, 2008
    Publication date: April 23, 2009
    Inventors: Mitsuru Goto, Nobuhiko Hosotani, Toshio Miyazawa, Hiroyuki Takahashi, Hitoshi Komeno
  • Publication number: 20090098788
    Abstract: In a plasma display panel where a discharge space is partitioned by lattice-shaped barrier rib which comprises vertical ribs and horizontal ribs, a manufacturing method for the plasma display panel is acquired. This manufacturing method is designed for allowing substantially-linear exhaustion-use through holes parallel to the vertical ribs to be formed on the horizontal ribs with the execution of a simple and convenient processing step. The plasma-display-panel manufacturing method thus acquired includes steps of forming a glass-containing material, which becomes step-difference, into a stripe-shaped configuration at positions of the vertical ribs on a coated film of a barrier rib material formed on a glass substrate, and after that, performing patterning of the lattice-shaped barrier rib.
    Type: Application
    Filed: January 25, 2008
    Publication date: April 16, 2009
    Inventors: Yuichi Sawai, Hideki Harada, Masashi Nishiki, Tetsuro Kawakita, Michifumi Kawai, Nobuhiko Hosotani
  • Publication number: 20090002573
    Abstract: A first translucent conductive layer is disposed on a front surface of a front substrate, a translucent insulating member is disposed on a front surface of the first translucent conductive layer, and a second translucent conductive layer held at the ground potential is disposed on a front surface of the translucent insulating member. According to the invention, an image display device, which prevents the abnormal discharge in the vacuum panel from occurring, and has high quality and reliability and long life, can be provided.
    Type: Application
    Filed: May 27, 2008
    Publication date: January 1, 2009
    Inventors: Nobuhiko Hosotani, Tadayoshi Tachibana, Tatsuro Kato
  • Patent number: 7471261
    Abstract: An integral-type liquid crystal display module has a first display panel and a second display panel, and it can use a display panel of high resolution as the second display panel. The display device includes a first display panel, a second display panel, and a first flexible printed circuit board which connects the first display panel and the second display panel. The first display panel includes a display drive unit. Video lines of the second display panel are connected with the display drive unit through connection lines for video lines of the first flexible printed circuit board. Further, the second display panel includes a scanning line drive unit which supplies drive voltages to scanning lines of the second display panel.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: December 30, 2008
    Inventors: Mitsuru Goto, Nobuhiko Hosotani, Toshio Miyazawa, Hiroyuki Takahashi, Hitoshi Komeno
  • Publication number: 20080315748
    Abstract: There is disclosed an FED (field emission display) capable of supplying an anode voltage, which is a high voltage, to an anode substrate with high reliability. A high voltage introduction button is sealed to a sealing plate, in which a contact spring is attached to the high voltage introduction button by spot welding. The high voltage introduction button has a flat portion connected to the contact spring, a sealing portion sealed to the glass substrate, and an external terminal to be connected to an external power source. The contact spring contacts an anode terminal of an anode substrate with an appropriate contact pressure, by a spring force from an arm portion of the contact spring. The anode terminal is formed of a conductive film containing metal particles.
    Type: Application
    Filed: March 25, 2008
    Publication date: December 25, 2008
    Inventors: Takaaki Kitada, Takashi Naito, Shigemi Hirasawa, Akira Hatori, Shoji Shirai, Shunichi Asakura, Makoto Yano, Yuuichi Kijima, Nobuhiko Hosotani, Go Saito
  • Patent number: 7452489
    Abstract: A conductive material comprising a V2O5—P2O5 glass and a second phase dispersed in the V2O5—P2O5 glass, wherein the second phase contains a crystalline V and O compound and a crystalline metal phosphate compound. The crystalline V and O compound is at least one of V2O5, V4O9, V2O4, and V2O3. The metal phosphate compound is a phosphate compound of transition metal or alkaline-earth metal. In a visual display device, glass spacers are bonded to glass panels with the conductive material.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: November 18, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Takashi Naitou, Mitsuo Hayashibara, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani
  • Publication number: 20080203894
    Abstract: The purpose of the invention is to improve the mass productivity of display devices by using a glass substrate that prevents the degradation of an electrode caused by glass of the display device. The present invention provides a flat panel display device containing at least two substrates and a light emitting part provided between the two substrates, wherein at least one substrate of the two substrates contains SiO2 as a main component and contains 1% to 10% by weight of at least one type selected from the group consisting of La, Y, Gd, Yb, and Lu in terms of oxides, 5% to 25% by weight of R2O (R denotes one or more types selected from a group consisting of Li, K, Cs, and Rb), and 8% to 20% by weight of Al2O3, and wherein the surface electric resistance at 350° C. of the glass material is higher than 1×108 (?/square).
    Type: Application
    Filed: January 23, 2008
    Publication date: August 28, 2008
    Inventors: Motoyuki Miyata, Osamu Shiono, Yuichi Sawai, Hiroki Yamamoto, Takashi Naito, Keiichi Kanazawa, Nobuhiko Hosotani, Hiroshi Ito, Akira Hatori
  • Publication number: 20080174234
    Abstract: The purpose of the present invention is to provide a spacer having a small absolute value of the temperature coefficient of resistance, the spacer being excellent in suppressing a thermal runaway, the spacer being excellent in voltage endurance so as not to cause an abnormal discharge even if a high voltage of over 10 kV is applied, the spacer being unlikely to cause deflection of an electron beam, and a flat panel display device provided with this spacer. The spacer of the flat panel display device includes, on the surface of a glass substrate, a thin film that comprises substances exhibiting metal-like electrical conductivity dispersed in an oxide matrix exhibiting semiconductor-like electrical conductivity.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 24, 2008
    Inventors: Hiroki Yamamoto, Takashi Naito, Yuichi Sawai, Osamu Shiono, Motoyuki Miyata, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani, Kyoto Honbo, Fusao Hojo
  • Publication number: 20080136306
    Abstract: A spacer according to the present invention for use in a flat panel display, which includes a cathode substrate with a cold cathode electron emitting device formed thereon, an anode substrate with a phosphor formed thereon, and a spacer disposed between the cathode and anode substrates, comprises a base made of a conductive glass, and a conductive crystallized glass layer on a surface of the base. The spacer is more excellent in antistatic characteristics than conventional spacers having a conducting layer on the surface of an insulating glass base. A flat panel display according to the present invention using the spacers permits a higher voltage to be applied, thus increasing image quality.
    Type: Application
    Filed: July 5, 2007
    Publication date: June 12, 2008
    Inventors: Takashi Naitou, Yuichi Sawai, Osamu Shiono, Mitsuo Hayashibara, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani, Shoji Shirai, Shigemi Hirasawa, Keiichi Kanazawa, Hiroyuki Akata
  • Publication number: 20080129186
    Abstract: To provide a spacer, which is unlikely to degrade due to heating received during manufacture process of an image display device, and an image display device equipped with the spacer. An image display device includes: a cathode substrate including an electron source; an anode substrate including a fluorescent substance that emits light upon receiving electrons emitted from the electron source; and a spacer that is disposed between the cathode substrate and the anode substrate and supports the both substrates, wherein the spacer comprises the one having a film composed of a composite metal oxide on a side surface of a glass base material, the composite metal oxide being composed of a solid solution of a metal oxide having a semiconductor-like electrical conductivity and a metal oxide having an insulator-like electrical conductivity.
    Type: Application
    Filed: November 1, 2007
    Publication date: June 5, 2008
    Inventors: Hiroki Yamamoto, Takashi Naito, Yuichi Sawai, Osamu Shiono, Motoyuki Miyata, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani
  • Publication number: 20080048552
    Abstract: In an image display device which forms an image by allowing electrons from electron sources which are arranged in a matrix array to impinge on phosphors in the inside of a vacuum envelope, the degree of vacuum during an operation of the image display device is improved. A vacuum envelope is formed of a face substrate, a back substrate and a support body which is arranged between and along peripheries of the face substrate and the back substrate using a sealing material. By using frit glass which contains vanadium oxide as a main component for a material of the sealing material, due to a getter action of frit glass which contains vanadium oxide as the main component, after vacuum evacuation, a lifetime of the display device can be prolonged. Further, by using frit glass which contains vanadium oxide as the main component for a material of an adhesive material which bonds the spacers and the face substrate or bonds the spacers and the back glass, the getter action can be further enhanced.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 28, 2008
    Inventors: Hiroshi Ito, Nobuhiko Hosotani, Shigemi Hirasawa, Yuuichi Kijima, Kenji Kato, Takashi Naito, Yuuichi Sawai
  • Publication number: 20080048551
    Abstract: The discharge between the electron source and the anode is prevented, thus providing a highly reliable image display device. The data signal lines d and the scanning signal lines formed via an insulating layer INS are provided on the inside surface of the rear substrate SUB1, and further the electron sources ELS are formed at intersections between the data signal lines d and the scanning signal lines s. Discharge preventing members SSB are disposed on the scanning signal lines s. The discharge preventing members SSB have conductive layers ECL on an upper surface of an insulating core member MBD made preferably of glass, and is fixed in a lower surface thereof to the scanning signal lines s with an adhesive FGL such as frit glass. The width of the discharge preventing member SSB is arranged to be greater than the width of the scanning signal line s, and the dimensions are arranged so that the discharge preventing member SSB covers the scanning signal line s when viewed from the anode.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 28, 2008
    Inventors: Yuuichi Kijima, Shoji Shirai, Yoshiyuki Kaneko, Nobuhiko Hosotani, Hiroshi Ito, Hiroyuki Tachihara, Shunichi Asakura
  • Publication number: 20080007151
    Abstract: A spacer of the present invention for use in an image display device, which has the spacer between a cathode substrate with a cold cathode electron emitting device formed thereon and an anode substrate with a phosphor formed thereon, comprises a phosphate glass having transition metal oxides as its main components, and a higher phosphate concentration layer at the spacer surface. A thickness of the higher phosphate concentration layer is suppressed to 0.5 ?m or less. More preferably, the spacer has a water resistant conductive passivation layer formed on its surface. This suppresses the thickness of the higher phosphate concentration layer to a thinner level, so that the spacer is less likely to be charged thus reducing the deflection amount of electron beam. An image display device of the present invention using above spacer can apply a higher voltage to the anode substrate, thus increasing the image quality.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 10, 2008
    Inventors: Takashi Naitou, Yuichi Sawai, Osamu Shiono, Mitsuo Hayashibara, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani, Shoji Shirai, Shigemi Hirasawa, Keiichi Kanazawa, Hiroyuki Akata
  • Publication number: 20070290602
    Abstract: The present invention provides a planar image display device which can prevent the generation of discharge by attenuating the concentration of an electric field on an end surface of a high voltage applied portion of a phosphor screen. In a planar image display device which includes a back substrate having a plurality of signal lines and a plurality of electron sources on a glass substrate, a face substrate having a phosphor screen layer, a BM film and a metal back on a glass substrate, and a frame body interposed between the back substrate and the face substrate, a high resistance film is arranged to cover a periphery of the metal back.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 20, 2007
    Inventors: Nobuhiko Hosotani, Shigemi Hirasawa, Yuuichi Kijima, Tomohiro Moriyama, Takashi Naito
  • Publication number: 20070278454
    Abstract: A conductive material comprising a V2O5—P2O5 glass and a second phase dispersed in the V2O5—P2O5 glass, wherein the second phase contains a crystalline V and O compound and a crystalline metal phosphate compound. The crystalline V and O compound is at least one of V2O5, V4O9, V2O4, and V2O3. The metal phosphate compound is a phosphate compound of transition metal or alkaline-earth metal. In a visual display device, glass spacers are bonded to glass panels with the conductive material.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Takashi Naitou, Mitsuo Hayashibara, Hiroshi Ito, Akira Hatori, Nobuhiko Hosotani
  • Publication number: 20070159056
    Abstract: It is an object of the present invention to provide a spacer which has an adequate Young's modulus for a spacer used in an image display panel and allows free adjustment of an electric resistance value, and an image display panel using the spacer. The spacer SPC holds a gap between a back panel PNL1 including a signal line CL, a scanning line GL, and an electronic source ELS provided for the main surface of a back substrate SUB1, and a front panel PNL2 including a fluorescent material PH, a black matrix BM, and an anode AD provided for the main surface of a front substrate SUB2. The spacer comprises phosphate glass including the same transition metal element with different valences. For electrical conduction, the included same transition metal element with different valences allows the use of hopping conduction between transition metal atoms with different valences to perform adjustment of electric resistance relatively easily.
    Type: Application
    Filed: January 5, 2007
    Publication date: July 12, 2007
    Inventors: Yuichi Sawai, Osamu Shiono, Takashi Namekawa, Nobuhiko Hosotani, Hiroshi Ito, Keiichi Kanazawa, Takashi Naitou, Hiroyuki Akata, Mitsuo Hayashibara, Shigemi Hirasawa, Motoyuki Miyata, Hiroki Yamamoto
  • Publication number: 20060238100
    Abstract: The present invention has an object to provide a flat panel display which employs a high-strength glass material to realize a reduction in thickness and weight. The flat panel display includes two substrates SUB1 and SUB2 and a light emitter PMG provided between the two substrates. At least one of the two substrates is made of glass material containing SiO2 as its main component and 1 to 20 wt % of at least one selected from La, Sc, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu.
    Type: Application
    Filed: April 11, 2006
    Publication date: October 26, 2006
    Inventors: Motoyuki Miyata, Osamu Shiono, Yuichi Sawai, Takashi Naitou, Tatsuya Nagata, Keiich Kanazawa, Nobuhiko Hosotani, Yuichi Inoue, Hiroshi Ito
  • Publication number: 20050052340
    Abstract: An integral-type liquid crystal display module has a first display panel and a second display panel, and it can use a display panel of high resolution as the second display panel. The display device includes a first display panel, a second display panel, and a first flexible printed circuit board which connects the first display panel and the second display panel. The first display panel includes a display drive unit. Video lines of the second display panel are connected with the display drive unit through connection lines for video lines of the first flexible printed circuit board. Further, the second display panel includes a scanning line drive unit which supplies drive voltages to scanning lines of the second display panel.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 10, 2005
    Inventors: Mitsuru Goto, Nobuhiko Hosotani, Toshio Miyazawa, Hiroyuki Takahashi, Hitoshi Komeno
  • Patent number: 6797406
    Abstract: The present invention relates to a color cathode ray tube provided with a pressed-type shadow mask. As material for constituting the shadow mask 6, a single plate body made of a composite gradient alloy plate consisting of three layers 6A, 6B, 6C or more in which an alloy element has the concentration gradient which is continuously changed from one surface to the other surface is used. The present invention can realize a pressed mask having a large radius of curvature by self-correcting the thermal deformation such as a doming or the like.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: September 28, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Noriharu Matsudate, Nobuhiko Hosotani