Patents by Inventor Akihiro Fujinaga

Akihiro Fujinaga 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: 20080238319
    Abstract: The present invention forms barrier ribs by using a glass sheet so that it becomes possible to reduce the cost of forming the barrier ribs, and to easily form the barrier ribs and electrodes. A dry film, which is fired to be formed into a dielectric layer, is formed on a substrate, a glass sheet having a thickness corresponding to a height of barrier ribs to be formed is secured onto the dry film, and a resist pattern corresponding to a shape of barrier ribs is formed on the glass sheet so that, by cutting off the glass sheet corresponding to unnecessary portions through sand blasting, the glass sheet is formed into the shape of barrier ribs, and the dry film is fired at a temperature lower than softening points of the substrate and the glass sheet so that the substrate and the glass sheet are anchored by the dielectric layer corresponding to the fired dry film; thus, the barrier ribs are formed.
    Type: Application
    Filed: August 31, 2005
    Publication date: October 2, 2008
    Inventors: Tatsutoshi Kanae, Akihiro Fujinaga
  • Publication number: 20080014543
    Abstract: A heating treatment method includes the steps of: preparing an array of heating chambers, the heating chambers being respectively provided with heaters and connected in series; transporting an object to be heated from an upstream side toward a downstream side of the array to allow the object to pass through the heating chambers; supplying and discharging a warm air flow to and from each heating chamber, and controlling an amount of each supplied warm air flow and an amount of each discharged warm air flow to generate an air flow traveling along a direction in which the object is raised in temperature.
    Type: Application
    Filed: December 26, 2006
    Publication date: January 17, 2008
    Inventors: Shunsuke Fujio, Akihiro Fujinaga, Tatsutoshi Kanae, Kazunori Ishizuka, Hiroshi Ohyane, Yasuo Yanagibashi
  • Publication number: 20080014837
    Abstract: In a method of forming partitions of a plasma display panel, the partitions of the plasma display panel are formed by using a sandblasting method, and abrasive material and partition cutting powder are dispersed in liquid after the completion of sandblasting. Further, in a device for forming partitions of a plasma display panel, the partitions of the plasma display panel are formed by a sandblasting method, and the device has a dispersing tank in which abrasive material and partition cutting powder are dispersed in liquid after the completion of sandblasting.
    Type: Application
    Filed: March 16, 2007
    Publication date: January 17, 2008
    Inventor: Akihiro Fujinaga
  • Patent number: 6919670
    Abstract: A rib structure for a display device includes a light-transmissive rib structure containing therein a material absorbent of visible light so that a visible light absorption distance is 40 to 1200 ?m (the visible light absorption distance L (?m) means a distance such that visible light decreases to exp(?T/L) times less in connection to the travel distance T (?m), that is, visible light is absorbed by 1-exp(?T/L)).
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: July 19, 2005
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yoshimi Kawanami, Yasuhiko Kunii, Tadashi Furukawa, Akihiro Fujinaga, Kazunori Ishizuka, Shoichi Iwanaga, Fumihiro Namiki, Ryohei Satoh
  • Patent number: 6855026
    Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: February 15, 2005
    Assignees: Fujitsu Limited, Fujitsu Hitachi Plasma Display Limited
    Inventors: Akihiro Fujinaga, Kazunori Ishizuka, Tatsutoshi Kanae, Kazuhide Iwasaki, Toshiyuki Nanto, Yoshimi Kawanami, Masayuki Shibata, Yasuhiko Kunii, Tadayoshi Kosaka, Osamu Toyoda, Yoshimi Shirakawa
  • Publication number: 20040072493
    Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 15, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Akihiro Fujinaga, Kazunori Ishizuka, Tatsutoshi Kanae, Kazuhide Iwasaki, Toshiyuki Nanto, Yoshimi Kawanami, Masayuki Shibata, Yasuhiko Kunii, Tadayoshi Kosaka, Osamu Toyoda, Yoshimi Shirakawa
  • Publication number: 20030189405
    Abstract: The present invention is a method for forming ribs for a plasma display panel. The method includes: forming a rib material layer having a predetermined thickness; forming band-shaped barrier rib masks on the rib material layer, each of the barrier rib masks having a pattern corresponding to a barrier rib; forming at least one dummy rib mask for forming at least one dummy rib for each barrier rib, the dummy rib mask being spaced apart from an end of each barrier rib mask in a longitudinal direction of the barrier rib mask; and performing sandblast by blowing abrasive onto the rib material layer and the barrier rib and dummy rib masks, thereby forming the barrier ribs.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 9, 2003
    Applicant: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yoshimi Shirakawa, Akihiro Fujinaga, Kazunori Ishizuka
  • Publication number: 20020190650
    Abstract: A rib structure for a display device includes a light-transmissive rib structure containing therein a material absorbent of visible light so that a visible light absorption distance is 40 to 1200 &mgr;m (the visible light absorption distance L (&mgr;m) means a distance such that visible light decreases to exp(−T/L) times less in connection to the travel distance T (&mgr;m), that is, visible light is absorbed by 1-exp(−T/L)).
    Type: Application
    Filed: November 21, 2001
    Publication date: December 19, 2002
    Applicant: Fujitsu Hitachi Plasma Display Limited
    Inventors: Yoshimi Kawanami, Yasuhiko Kunii, Tadashi Furukawa, Akihiro Fujinaga, Kazunori Ishizuka, Shoichi Iwanaga, Fumihiro Namiki, Ryohei Satoh
  • Patent number: RE41312
    Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 4, 2010
    Assignees: Fujitsu Hitachi Plasma Display Limited, Hitachi, Ltd.
    Inventors: Akihiro Fujinaga, Kazunori Ishizuka, Tatsutoshi Kanae, Kazuhide Iwasaki, Toshiyuki Nanto, Yoshimi Kawanami, Masayuki Shibata, Yasuhiko Kunii, Tadayoshi Kosaka, Osamu Toyoda, Yoshimi Shirakawa
  • Patent number: RE42405
    Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 31, 2011
    Assignees: Fujitsu Hitachi Plasma Display Limited, Hitachi Plasma Patent Licensing Co., Ltd.
    Inventors: Akihiro Fujinaga, Kazunori Ishizuka, Tatsutoshi Kanae, Kazuhide Iwasaki, Toshiyuki Nanto, Yoshimi Kawanami, Masayuki Shibata, Yasuhiko Kunii, Tadayoshi Kosaka, Osamu Toyoda, Yoshimi Shirakawa
  • Patent number: RE44445
    Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: August 20, 2013
    Assignees: Hitachi Consumer Electronics Co., Ltd., Hitachi, Ltd.
    Inventors: Akihiro Fujinaga, Kazunori Ishizuka, Tatsutoshi Kanae, Kazuhide Iwasaki, Toshiyuki Nanto, Yoshimi Kawanami, Masayuki Shibata, Yasuhiko Kunii, Tadayoshi Kosaka, Osamu Toyoda, Yoshimi Shirakawa