Patents by Inventor Tomohiro Murakoso

Tomohiro Murakoso 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: 20100207922
    Abstract: Having a low-cost transparent electrode, the plasma display panel suppresses variations in discharge characteristics between discharge cells and provides high quality image. To attain above, a scan electrode has a scan transparent electrode formed by applying a dispersion liquid containing particles of metal or metal oxide onto a front substrate, and a scan bus electrode on the front substrate. A sustain electrode has a sustain transparent electrode formed by applying a dispersion liquid containing particles of metal or particles of metal oxide onto the front substrate, and a sustain bus electrode on the front substrate. Besides, a discharge gap is formed by a scan bus electrode and a sustain bus electrode. An outer periphery section on a discharge-gap side of a scan transparent electrode overlaps with a scan bus electrode, and an outer periphery section on a discharge-gap side of a sustain transparent electrode overlaps with a sustain bus electrode.
    Type: Application
    Filed: July 3, 2009
    Publication date: August 19, 2010
    Inventors: Yasuhisa Ishikura, Eiichi Uriu, Ryota Hamada, Tomohiro Murakoso
  • Publication number: 20080272696
    Abstract: A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.
    Type: Application
    Filed: April 12, 2006
    Publication date: November 6, 2008
    Inventors: Tomohiro Murakoso, Kenji Ogawa, Toru Ando, Kentaro Ueda, Yohei Koshio, Ryuichi Murai
  • Patent number: 7348937
    Abstract: Barrier ribs are disposed on a back substrate so as to separate main discharge cells and priming discharge cells, and the top parts of the barrier ribs are formed so as to abut on a front substrate. In a driving method, in an odd-numbered line writing time period, scan pulse Va is sequentially applied to odd-numbered scan electrode SCp and voltage Vq is applied to even-numbered sustain electrode SUp+1 to cause priming discharge between even-numbered sustain electrode SUp+1 and odd-numbered scan electrode SCp. In an even-numbered line writing time period, scan pulse Va is sequentially applied to even-numbered scan electrode SCp+1 and voltage Vq is applied to odd-numbered sustain electrode SUp to cause priming discharge between odd-numbered sustain electrode SUp and even-numbered scan electrode SCp+1.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: March 25, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Jumpei Hashiguchi, Kenji Ogawa, Toshikazu Wakabayashi, Tomohiro Murakoso
  • Patent number: 7345655
    Abstract: Barrier ribs are disposed on a back substrate so as to separate main discharge cells formed of a display electrode pair and a data electrode which face each other and priming discharge cells formed of a clearance between two adjacent scan electrodes. The top parts of the barrier ribs are formed so as to abut on a front substrate. In a driving method, in an odd-numbered line writing time period, scan pulse Va is sequentially applied to odd-numbered scan electrode SCp and voltage Vq is applied to even-numbered scan electrode SCp+1 to cause priming discharge between scan electrode SCp+1 and odd-numbered scan electrode SCp. In an even-numbered line writing time period, scan pulse Va is sequentially applied to even-numbered scan electrode SCp+1 and voltage Vq is applied to odd-numbered scan electrode SCp to cause priming discharge between scan electrode SCp and even-numbered scan electrode SCp+1.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: March 18, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Jumpei Hashiguchi, Kenji Ogawa, Toshikazu Wakabayashi, Tomohiro Murakoso
  • Publication number: 20070241994
    Abstract: A plurality of subfields configuring a field period include the subfield(s) in charge of an every-cell initialization operation of causing initial discharge in every discharge cell in an initialization period, and the subfield(s) in charge of a selective initialization operation of causing the initial discharge in any predetermined discharge cell in the initialization period. In at least low-luminance subfield, the every-cell initialization operation is performed, and a low-luminance subfield is disposed subsequent to the subfield(s) in charge of the every-cell initialization operation. In at least either a sustain period of the subfield in charge of the every-cell initialization operation or a sustain period of the low-luminance subfield, the width of a first sustain pulse P1 is set wider than the width of a second sustain pulse P2, and the width of the second sustain pulse P2 is set wider than the width of a third sustain pulse and subsequent others.
    Type: Application
    Filed: February 22, 2006
    Publication date: October 18, 2007
    Inventors: Kenji Ogawa, Tomohiro Murakoso
  • Patent number: 7112922
    Abstract: A plasma display panel has address properties stabilized. A priming discharge is performed between auxiliary electrodes (17), which are formed on a front substrate (1) and coupled with scan electrodes (6) and priming electrodes (14) formed on a back substrate (2). Furthermore, a material layer (5) containing at least one of alkali metal oxide, alkaline earth metal oxide and fluoride is provided on regions corresponding to priming discharge spaces (30) (gap parts 13) on the back substrate (2). As a result, the priming discharge has a wider margin, and a supply of priming particles to the discharge cells is stabilized, whereby a discharge delay during the addressing is reduced, and the address properties are stabilized.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: September 26, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Tomohiro Murakoso, Yasuyuki Noguchi, Tetsuya Shirai
  • Publication number: 20060164338
    Abstract: Barrier ribs are disposed on a back substrate so as to separate main discharge cells and priming discharge cells, and the top parts of the barrier ribs are formed so as to abut on a front substrate. In a driving method, in an odd-numbered line writing time period, scan pulse Va is sequentially applied to odd-numbered scan electrode SCp and voltage Vq is applied to even-numbered sustain electrode SUp+1 to cause priming discharge between even-numbered sustain electrode SUp+1 and odd-numbered scan electrode SCp. In an even-numbered line writing time period, scan pulse Va is sequentially applied to even-numbered scan electrode SCp+1 and voltage Vq is applied to odd-numbered sustain electrode SUp to cause priming discharge between odd-numbered sustain electrode SUp and even-numbered scan electrode SCp+1.
    Type: Application
    Filed: February 23, 2005
    Publication date: July 27, 2006
    Inventors: Hiroyuki Tachibana, Jumpei Hashiguchi, Kenji Ogawa, Toshikazu Wakabayashi, Tomohiro Murakoso
  • Publication number: 20060145997
    Abstract: Barrier ribs are disposed on a back substrate so as to separate main discharge cells formed of a display electrode pair and a data electrode which face each other and priming discharge cells formed of a clearance between two adjacent scan electrodes. The top parts of the barrier ribs are formed so as to abut on a front substrate. In a driving method, in an odd-numbered line writing time period, scan pulse Va is sequentially applied to odd-numbered scan electrode SCp and voltage Vq is applied to even-numbered scan electrode SCp+1 to cause priming discharge between scan electrode SCp+1 and odd-numbered scan electrode SCp. In an even-numbered line writing time period, scan pulse Va is sequentially applied to even-numbered scan electrode SCp+1 and voltage Vq is applied to odd-numbered scan electrode SCp to cause priming discharge between scan electrode SCp and even-numbered scan electrode SCp+1.
    Type: Application
    Filed: January 13, 2005
    Publication date: July 6, 2006
    Inventors: Hiroyuki Tachibana, Jumpei Hashiguchi, Kenji Ogawa, Toshikazu Wakabayashi, Tomohiro Murakoso
  • Patent number: 7030562
    Abstract: The invention is a plasma display panel capable of stabilizing the addressing characteristics. A barrier rib is formed by longitudinal barrier ribs portion orthogonal to the scan electrodes and sustain electrodes on the front substrate, and side barrier rib portions crossing with these longitudinal barrier rib portions, to form cell spaces and form interstice portions between the cell spaces, and priming electrodes for producing a discharge between the front substrate and the rear substrate within the interstice portions are formed. Stable priming discharge is produced with certainty by the scan electrode and the priming electrode, hence decreasing the discharge time lag at the time of addressing and stabilizing the addressing characteristics.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: April 18, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Tomohiro Murakoso, Nobuaki Nagao, Ryuichi Murai
  • Publication number: 20050104807
    Abstract: A plasma display panel has address properties stabilized. A priming discharge is performed between auxiliary electrodes (17), which are formed on a front substrate (1) and coupled with scan electrodes (6) and priming electrodes (14) formed on a back substrate (2). Furthermore, a material layer (5) containing at least one of alkali metal oxide, alkaline earth metal oxide and fluoride is provided on regions corresponding to priming discharge spaces (30) (gap parts 13) on the back substrate (2). As a result, the priming discharge has a wider margin, and a supply of priming particles to the discharge cells is stabilized, whereby a discharge delay during the addressing is reduced, and the address properties are stabilized.
    Type: Application
    Filed: March 25, 2004
    Publication date: May 19, 2005
    Inventors: Hiroyuki Tachibana, Tomohiro Murakoso, Yasuyuki Noguchi, Tetsuya Shirai
  • Publication number: 20050040766
    Abstract: The invention is a plasma display panel capable of stabilizing the addressing characteristics. A barrier rib is formed by longitudinal barrier ribs portion orthogonal to the scan electrodes and sustain electrodes on the front substrate, and side barrier rib portions crossing with these longitudinal barrier rib portions, to form cell spaces and form interstice portions between the cell spaces, and priming electrodes for producing a discharge between the front substrate and the rear substrate within the interstice portions are formed. Stable priming discharge is produced with certainty by the scan electrode and the priming electrode, hence decreasing the discharge time lag at the time of addressing and stabilizing the addressing characteristics.
    Type: Application
    Filed: October 24, 2003
    Publication date: February 24, 2005
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Tomohiro Murakoso, Nobuaki Nagao, Ryuichi Murai