Patents by Inventor Kazuhiko Sugimoto

Kazuhiko Sugimoto 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: 20060130177
    Abstract: The present inventors studied intensively, concentrating on the hypersensitive reaction from among the various reactions involved in enhancing plant resistance. As a result, the inventors found AAM97746.1 to be a protein that induces hypersensitive reaction-like lesion mimic. Disease or pest resistance in plants can be enhanced by using this protein and the like.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 15, 2006
    Applicant: National Institute Of Agrobiological Sciences
    Inventors: Masaki Mori, Kazuhiko Sugimoto, Hirohiko Hirochika, Shoshi Kikuchi, Nagao Hayashi, Hirokazu Ochiai
  • Publication number: 20060108923
    Abstract: Disclosed here is a plasma display unit that employs phosphors having an amount of charge controlled close to zero, by which degradation in luminance, color temperature, and charge characteristics can be minimized. A phosphor bearing positive or negative charge is coated with a compound for controlling the amount of charge of the phosphor through a strong chemical bonding, whereby the amount of charge of a phosphor can be suppressed within ±0.01 ?C/g. Controlling the amount of charge of phosphors close to zero can keep impurity gases away from the phosphor particle when the panel is in operation, suppressing problems critical to driving a plasma display unit, such as luminance degradation of phosphors, improper alignment of color in panel operation, luminance degradation when the panel displays all white.
    Type: Application
    Filed: April 21, 2004
    Publication date: May 25, 2006
    Inventors: Masaki Aoki, Yumi Kondo, Kazuhiko Sugimoto, Hiroshi Setoguchi, Junichi Hibino, Yoshiki Tanaka, Teppei Hosokawa
  • Publication number: 20060103310
    Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
    Type: Application
    Filed: February 19, 2004
    Publication date: May 18, 2006
    Inventors: Kazuhiko Sugimoto, Junichi Hibino, Masaki Aoki, Yoshinori Tanaka, Hiroshi Setoguchi
  • Patent number: 7034458
    Abstract: A manufacturing method for a metal electrode used for a bus electrode, a data electrode, and the like which make up a display panel including a PDP (Plasma Display Panel) by which, when these electrodes are patterned according to a photolithographic method, the edge curl phenomenon can be substantially controlled to the extent that the phenomenon is negligible. The manufacturing method of the invention therefore includes a dry step for drying the layers making up the metal electrode so that flows (F1, F2, and F3) of the solvent occur from a region having a high absorbency of the solvent to a region having a lower absorbency of the solvent.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: April 25, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideki Asida, Shinya Fujiwara, Hideki Marunaka, Tadashi Nakagawa, Keisuke Sumida, Hideaki Yasui, Kazuhiko Sugimoto, Hiroyosi Tanaka
  • Publication number: 20060072301
    Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are disposed, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is 2/1, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.
    Type: Application
    Filed: September 24, 2004
    Publication date: April 6, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuichiro Miyamae, Masaki Aoki, Kazuhiko Sugimoto, Keiji Horikawa, Junichi Hibino, Tanaka Yoshinori, Setoguchi Hiroshi
  • Publication number: 20060071588
    Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of the PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are allocated, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) is 2/1 to 2.09/1 at least at the proximity of the surface, and the layer is positively charged or zero-charged.
    Type: Application
    Filed: September 24, 2004
    Publication date: April 6, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiji Horikawa, Masaki Aoki, Kazuhiko Sugimoto, Yuichiro Miyamae, Junichi Hibino, Tanaka Yoshinori, Setoguchi Hiroshi
  • Publication number: 20060017385
    Abstract: A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reaction thereto. The green color phosphor used is a combination of any of phosphors defined by the general formula of MMg1-xAl11O19:Mnx (where “M” denotes one of La and Ce) having a magnetoplumbite crystal structure, yttrium borate group and yttrium aluminate group phosphors defined by the general formulae of (Y1-a-yGda) BO3:Tby, (Y1-a-yGda) (Ga1-xAlx)3(BO3)4:Tby, (Y1-a-yGda)(Ga1-xAlx)3(BO3)4:Cey, Thy, (Y1-y)3(Ga1-xAlx)5O12:Tby and La Mg1-xAl11O19:Cex, Tbx.
    Type: Application
    Filed: June 29, 2004
    Publication date: January 26, 2006
    Inventors: Yoshinori Tanaka, Masaki Aoki, Kazuhiko Sugimoto, Yuichiro Miyamme, Junichi Hibino, Hiroshi Setoguchi, Keiji Horikawa
  • Publication number: 20060017384
    Abstract: A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reacttion thereto. The green color phosphor used is any one or a combination two or more kinds of phosphors selected from among compounds defined by the general formulae of M1-xAl12O19:Mnx (where “M” denotes one of Ca, Sr, Eu and Zn) having a magnetoplumbite crystal structure, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Tby, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Cey, Tby, (Y1-a-yGda) BO3:Tby and (Y1-a-yGda)3 (Ga1-xAlx)5 O12:Tby having any of an yttrium borate crystal structure and yttrium aluminate crystal structure.
    Type: Application
    Filed: June 29, 2004
    Publication date: January 26, 2006
    Inventors: Hiroshi Setoguchi, Masaki Aoki, Kazuhiko Sugimoto, Yuichiro Miyamae, Junichi Hibino, Yoshiniro Tanaka, Keiji Horikawa
  • Patent number: 6960309
    Abstract: The present invention inhibits water adsorption onto the surface of a blue phosphor, decreases luminance degradation and chromaticity shift of a phosphor, or improves discharge characteristics thereof. The blue phosphor is a compound represented by Ba1-xMgAl10O17:Eux or Ba1-x-ySryMgAl10O17:Eux, wherein 0.03?x?0.25 and 0.1?y?0.5, and containing at least one of Ti, Zr, Hf, Si, Ge, Sn, and Ce substituting for part of one of elements Al and Mg.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: November 1, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Aoki, Hiroyuki Kawamura, Kazuhiko Sugimoto, Mitsuhiro Otani, Junichi Hibino
  • Publication number: 20050225520
    Abstract: In a phosphor whose host crystal is constituted of an oxide, a method of preparing the phosphor where the oxygen deficiencies in the phosphor are not many, and a plasma display device using the same are provided. After processes of weighing, mixing and filling powders of the phosphor, a process for firing in a reducing atmosphere and a process for firing in an oxidizing atmosphere after the last reducing atmosphere process are provided. In addition, a firing temperature in the oxidizing atmosphere process is not less than 600° C. and not more than 1000° C.
    Type: Application
    Filed: February 18, 2004
    Publication date: October 13, 2005
    Inventors: Kazuhiko Sugimoto, Junichi Hibino, Masaki Aoki, Yoshinori Tanaka, Hiroshi Setoguchi
  • Publication number: 20050212429
    Abstract: The preresent invention provides a plasma display panel that suppresses discharge sustain voltage, and reduces brightness degradation of a phosphor. In the plasma display panel, as protective film (14) made of magnesium oxide (MgO) formed on dielectric glass layer (13), protective film (14) made of magnesium oxide (MgO) with oxide added with an electronegativity of 1.4 or higher, is formed to suppress impure gas adsorption by protective film (14), stabilizes discharge sustain voltage, and reduces brightness degradation.
    Type: Application
    Filed: April 21, 2004
    Publication date: September 29, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD
    Inventors: Masaki Aoki, Yumi Kondo, Kazuhiko Sugimoto, Hiroshi Setoguchi, Junichi Hibino, Yoshinori Tanaka, Teppeo Hosokawa
  • Publication number: 20050206315
    Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an oxygen plasma atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
    Type: Application
    Filed: February 19, 2004
    Publication date: September 22, 2005
    Inventors: Kazuhiko Sugimoto, Junichi Hibino, Masaki Aoki, Yoshinori Tanaka, Hiroshi Setoguchi
  • Publication number: 20050200277
    Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then performing oxygen ion implantation treatment for implanting oxygen ions and annealing the particles, after the step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
    Type: Application
    Filed: February 19, 2004
    Publication date: September 15, 2005
    Inventors: Kazuhiko Sugimoto, Junichi Hibino, Masaki Aoki, Yoshinori Tanaka, Hiroshi Setoguchi
  • Patent number: 6939480
    Abstract: Disclosed is a plasma display device that provides high luminance and minimal degradation in luminance under panel operations. A blue phosphor in a phosphor layer has a crystal structure of MeMgSi2O6:Eu or Me3MgSi2O8:Eu (where, Me contains at least one of Ca, Sr, and Ba) produced with a precursor that is obtained by any one of methods: an aqueous solution synthesis method, a spray synthesis method, a hydrothermal synthesis method, and a hydrolysis method. The phosphor has an average particle diameter ranging from 0.1 to 3.0 ?m.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 6, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Aoki, Mitsuhiro Otani, Hiroyuki Kawamura, Kazuhiko Sugimoto, Junichi Hibino
  • Publication number: 20050146271
    Abstract: Phosphor layers (110G, 110B, and 110R) are made of combination of: blue and green phosphors that are positively charged on their surfaces and baked in an oxygen-nitrogen atmosphere to reduce oxygen vacancy, and have a ?-alumina crystal structure; and a red phosphor made of an yttrium oxide compound. Uniformly forming such phosphor layers on the wall surfaces of barrier ribs (109) provides equal charge characteristics of the phosphors of respective colors, reduces oxygen vacancy in the phosphors, and inhibits adsorption of various gases in the panel production process. This can stabilize the discharge characteristics and prevent luminance degradation at driving the panel.
    Type: Application
    Filed: September 26, 2003
    Publication date: July 7, 2005
    Inventors: Masaki Aoki, Hiroyuki Kawamura, Kazuhiko Sugimoto, Hiroshi Setoguchi, Junichi Hibino, Yoshinori Tanaka
  • Publication number: 20050134177
    Abstract: A manufacturing method for a metal electrode used for a bus electrode, a data electrode, and the like which make up a display panel including a PDP (Plasma Display Panel) by which, when these electrodes are patterned according to a photolithographic method, the edge curl phenomenon can be substantially controlled to the extent that the phenomenon is negligible. The manufacturing method of the invention therefore includes a dry step for drying the layers making up the metal electrode so that flows (F1, F2, and F3) of the solvent occur from a region having a high absorbency of the solvent to a region having a lower absorbency of the solvent.
    Type: Application
    Filed: February 8, 2005
    Publication date: June 23, 2005
    Inventors: Hideki Asida, Shinya Fujiwara, Hideki Marunaka, Tadashi Nakagawa, Keisuke Sumida, Hideaki Yasui, Kazuhiko Sugimoto, Hiroyosi Tanaka
  • Publication number: 20050093774
    Abstract: A method of manufacturing a plasma display panel is disclosed. This method can collect impurity gas in the panel without an activation treatment at a high temperature. The method includes at least one of forming a dielectric layer on a principal face of a substrate, forming barrier ribs which partition a discharging space on the dielectric layer, and forming a phosphor layer between the barrier ribs. At least one of forming the dielectric layer, forming the barrier ribs, and forming the phosphor layer uses inorganic material into which solution including degassing material is impregnated.
    Type: Application
    Filed: January 20, 2004
    Publication date: May 5, 2005
    Inventors: Yoshinori Tanaka, Junichi Hibino, Masaki Aoki, Kazuhiko Sugimoto, Hiroshi Setoguchi
  • Patent number: 6879105
    Abstract: An electrode plate, a method of manufacturing the same, a gas discharge panel using an electrode plate, and a method of manufacturing the same are provided by incorporating a relatively simple structure, which can keep electrodes formed on a plate from peeling or becoming misaligned. In the electrode plate, at least one electrode is formed and adhered to a main surface of a plate by a thick film or thin film formation method, wherein of all ends of the electrode, at least an end opposite to an end at a power supply point is adhered to the main surface of the plate with stronger adhesion than the other parts of the electrode.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 12, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideaki Yasui, Kazuhiko Sugimoto, Keisuke Sumida, Hiroyoshi Tanaka, Shinya Fujiwara, Hideki Marunaka, Kazunori Hirao
  • Publication number: 20050062417
    Abstract: Phosphor and a plasma display device are provided whose deterioration in brightness of phosphors and a degree of change in chromaticity are alleviated and whose discharge characteristics are improved and that has excellent initial characteristics. Phosphor of the present invention is an alkaline-earth metal aluminate phosphor containing an element M (where M denotes at least one type of element selected from the group consisting of Nb, Ta, W and B). In this phosphor, a concentration of M in the vicinity of a surface of the phosphor particles is higher than the average concentration of M in the phosphor particles as a whole. A plasma display device according to the present invention includes a plasma display panel in which a plurality of discharge cells in one color or in a plurality of colors are arranged and phosphor layers are arranged so as to correspond to the discharge cells in colors and in which light is emitted by exciting the phosphor layers with ultraviolet rays.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 24, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Kojiro Okuyama, Takehiro Zukawa, Masahiro Sakai, Seigo Shiraishi, Kazuhiko Sugimoto, Masaki Aoki, Junichi Hibino
  • Patent number: 6869751
    Abstract: A manufacturing method for a metal electrode used for a bus electrode, a data electrode, and the like which make up a display panel including a PDP (Plasma Display Panel) by which, when these electrodes are patterned according to a photolithographic method, the edge curl phenomenon can be substantially controlled to the extent that the phenomenon is negligible. The manufacturing method of the invention therefore includes a dry step for drying the layers making up the metal electrode so that flows (F1, F2, and F3) of the solvent occur from a region having a high absorbency of the solvent to a region having a lower absorbency of the solvent.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: March 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideki Asida, Shinya Fujiwara, Hideki Marunaka, Tadashi Nakagawa, Keisuke Sumida, Hideaki Yasui, Kazuhiko Sugimoto, Hiroyosi Tanaka