Patents by Inventor Hiroyuki Tachibana

Hiroyuki Tachibana 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: 7009587
    Abstract: A gas discharge panel includes a first substrate and a second substrate. A plurality of display electrode pairs which are each made up of a sustain electrode and a scan electrode are formed on the first substrate, and the first substrate and the second substrate are set facing each other with a plurality of barrier ribs in between so as to form a plurality of cells. In this gas discharge panel, at least one of the sustain electrode and the scan electrode includes: a plurality of line parts; and a discharge developing part which makes a gap between adjacent line parts smaller in areas corresponding to channels between adjacent barrier ribs than in areas corresponding to the barrier ribs.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: March 7, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Nishimura, Hidetaka Higashino, Ryuichi Murai, Yuusuke Takada, Nobuaki Nagao, Toru Ando, Naoki Kosugi, Hiroyuki Tachibana
  • Publication number: 20050219156
    Abstract: The initializing period of at least one of a plurality of sub-fields constituting one field is a selective initializing period for selectively initializing discharge cells in which sustain discharge has occurred in the sustaining period of the preceding sub-field. In the sustaining period of the sub-field prior to the sub-field including the selective initializing period, voltage Vr is applied to a priming electrode (PRi) for causing discharge between the priming electrode (PRi) and corresponding scan electrode (SCi) using the priming electrode (PRi) as a cathode.
    Type: Application
    Filed: March 23, 2004
    Publication date: October 6, 2005
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Toshikazu Wakabayashi, Yasuaki Muto
  • Publication number: 20050219160
    Abstract: Front substrate (1) contains a plurality of scan electrodes (6) and sustain electrodes (7). Two strips of scan electrodes (6) and two strips of sustain electrodes (7) are alternately disposed on the substrate. In addition, a plurality of auxiliary scan electrodes (20) is disposed on front substrate (1) so as to be parallel to scan electrodes (6). On back substrate (2), a plurality of priming electrodes (14) is disposed parallel to scan electrodes (6). Each auxiliary scan electrode (20) has electrical connections to the scan electrode that performs scanning earlier than the scan electrode adjacent to each auxiliary scan electrode (20). With the structure above, a priming discharge occurs between auxiliary scan electrodes (20) and priming electrodes (14).
    Type: Application
    Filed: March 23, 2004
    Publication date: October 6, 2005
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Toshikazu Wakabayashi
  • Publication number: 20050200570
    Abstract: A method of driving a plasma display panel including a plurality of priming electrodes. The pulse width of scan pulses applied to some of a plurality of scan electrodes in which writing is performed and priming discharge is caused with the scanning of the scan electrodes is larger than the pulse width of scan pulses applied to the other scan electrodes in which writing is performed but no priming discharge is caused with the scanning of the scan electrodes.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 15, 2005
    Inventors: Hiroyuki Tachibana, Toshikazu Wakabayashi, Shigeo Kigo, Nobuaki Nagao, Kenji Ogawa
  • Publication number: 20050156524
    Abstract: A plasma display panel has address properties stabilized. A priming discharge is performed between auxiliary electrodes (18), which are formed on a front substrate (1) and coupled with scan electrodes (6), and priming electrodes (14) formed on a back substrate (2). And on the front substrate (1), a dielectric layer (4) is made thinner in regions corresponding to priming cells (gap parts 13) than in regions corresponding to cell parts (11). 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: July 21, 2005
    Inventors: HIroyuki Tachibana, Morio Fujitani, Yasuyuki Noguchi, Tatsuya Shirai
  • Publication number: 20050151476
    Abstract: A highly reliable plasma display panel with less difference in wiring resistance, which can be driven at high speed even though the front or rear board has multilayer electrode wiring. Data electrode (9) is covered with dielectric layer (15), and priming electrode (14) is provided on dielectric layer (15). External wiring lead-out (19) of data electrode (9) is provided on rear substrate (200), and external wiring lead-out (18) of priming electrode (14) is provided on dielectric layer (15). Wiring lead-out (19) and wiring lead-out (18) have step (20) equivalent to the thickness of dielectric layer (15).
    Type: Application
    Filed: February 18, 2004
    Publication date: July 14, 2005
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Masafumi Okawa, Ryuichi Murai
  • Publication number: 20050146274
    Abstract: A plasma display panel can stabilize address properties. A front substrate (1) and a back substrate (2) are disposed to face each other, and a discharge space (3) is formed and partitioned by barrier ribs (11) so as to form priming discharge cells (16) and main discharge cells (12). Forming priming electrodes (15) onto a dielectric layer (17) in the priming discharge cells (16) can secure the isolation voltage between data electrodes (10) and the priming electrodes (15), and can also secure the generation of a priming discharge prior to a main discharge.
    Type: Application
    Filed: March 25, 2004
    Publication date: July 7, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Naoki Kosugi, Tsuyoshi Nishio, Masaki Nishimura
  • Patent number: 6900781
    Abstract: A plasma display having a discharge cell, the emission efficiency of which is improved by generating first and second discharges with one sustaining pulse. A first discharge is generated by increasing a voltage up to a maximal value through a LC resonance formed by a recovery coil and a panel capacitor. A second discharge is generated by connecting the panel capacitor to a power supply when the voltage falls a predetermined amount below the maximal value, thereby increasing the voltage to a predetermined level above the maximal value.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: May 31, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuhiro Mori, Mitsuhiro Kasahara, Yoshinao Oe, Hiroyuki Tachibana
  • 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: 20050099125
    Abstract: A plasma display panel can reduce a discharge delay in address discharge, thereby performing high-speed addressing in a stable manner. A front substrate (1) and a back substrate (2) are disposed to face each other, and a discharge space (3) is formed and partitioned by barrier ribs (10) so as to form priming discharge cells (17) and main discharge cells (11). A clearance (19) is provided between the barrier ribs (10) of the priming discharge cells (17) and the front substrate (1), and priming particles generated in the priming discharge cells (17) are supplied to the main discharge cells (11) through the clearance (19), whereby a PDP performing high-speed addressing is obtained.
    Type: Application
    Filed: March 25, 2004
    Publication date: May 12, 2005
    Inventors: Hiroyuki Tachibana, Morio Fujitani, Tsuyoshi Nishio, Toru Ando, Koichi Mizuno
  • Patent number: 6873103
    Abstract: A gas discharge panel having plural pairs of display electrodes disposed so as to extend through a plurality of cells, each pair being formed from a sustain electrode and a scan electrode. The sustain and scan electrodes each include a plurality of line parts, and an aggregate width of the line parts included in the sustain and scan electrodes is in a range of 22% to 48% inclusive of pixel pitch.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: March 29, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuusuke Takada, Toru Ando, Nobuaki Nagao, Hidetaka Higashino, Masaki Nishimura, Ryuichi Murai, Yoshio Watanabe, Naoki Kosugi, Hiroyuki Tachibana, Koichi Wani
  • 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
  • Publication number: 20040214674
    Abstract: A frictional forced power transmission belt transmits power to a pulley with its belt body wound around and in contact with the pulley. At least a contact part of the belt body with a pulley is formed of a rubber composition which contains ethylene-&agr;-olefin elastomer as a rubber component but contains substantially no short fibers and which has a rubber hardness of not less than 80 but less than 95 when measured with a type A durometer in conformity with JIS K6253.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 28, 2004
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Hiroyuki Tachibana, Hiroyuki Shiriike
  • Publication number: 20040214676
    Abstract: A frictional forced power transmission belt transmits power to a pulley with its belt body wound around and in contact with the pulley. At least a contact part of the belt body with a pulley is formed of a rubber composition in which powdery or granular polyolefin resin is contained in ethylene-&agr;-olefin elastomer.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 28, 2004
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Hiroyuki Shiriike, Hiroyuki Tachibana
  • Patent number: 6707259
    Abstract: A gas discharge panel having (i) a plurality of cells arranged in a matrix between a pair of opposing substrates, the cells being filled with a discharge gas, and (ii) plural pairs of display electrodes arranged on a surface of one of the substrates so as to extend through the plurality of cells, each pair of display electrodes being composed of a sustain electrode and a scan electrode that define a main discharge gap therebetween. In such a gas discharge panel, each sustain electrode and scan electrode includes a plurality of line parts that extend in a row direction of the matrix. Furthermore, the main discharge gap and a line part gap between adjacent line parts are provided such that a discharge current waveform of the display electrodes has a single peak when the gas discharge panel is driven.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: March 16, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Nobuaki Nagao, Hidetaka Higashino, Toru Ando, Yuusuke Takada, Masaki Nishimura, Ryuichi Murai, Koichi Wani, Naoki Kosugi, Hiroyuki Tachibana, Yoshio Watanabe
  • Publication number: 20040041522
    Abstract: A gas discharge panel having plural pairs of display electrodes disposed so as to extend through a plurality of cells, each pair being formed from a sustain electrode and a scan electrode. The sustain and scan electrodes each include a plurality of line parts, and an aggregate width of the line parts included in the sustain and scan electrodes is in a range of 22% to 48% inclusive of pixel pitch.
    Type: Application
    Filed: July 21, 2003
    Publication date: March 4, 2004
    Inventors: Yuusuke Takada, Toru Ando, Nobuaki Nagao, Hidetaka Higashino, Masaki Nishimura, Ryuichi Murai, Yoshio Watanabe, Naoki Kosugi, Hiroyuki Tachibana, Koichi Wani
  • Publication number: 20040032215
    Abstract: A gas discharge panel includes a first substrate and a second substrate. A plurality of display electrode pairs which are each made up of a sustain electrode and a scan electrode are formed on the first substrate, and the first substrate and the second substrate are set facing each other with a plurality of barrier ribs in between so as to form a plurality of cells. In this gas discharge panel, at least one of the sustain electrode and the scan electrode includes: a plurality of line parts; and a discharge developing part which makes a gap between adjacent line parts smaller in areas corresponding to channels between adjacent barrier ribs than in areas corresponding to the barrier ribs.
    Type: Application
    Filed: August 29, 2003
    Publication date: February 19, 2004
    Inventors: Masaki Nishimura, Hidetaka Higashino, Ryuichi Murai, Yuusuke Takada, Nobuaki Nagao, Toru Ando, Naoki Kosugi, Hiroyuki Tachibana
  • Publication number: 20030146713
    Abstract: A gas discharge panel having (i) a plurality of cells arranged in a matrix between a pair of opposing substrates, the cells being filled with a discharge gas, and (ii) plural pairs of display electrodes arranged on a surface of one of the substrates so as to extend through the plurality of cells, each pair of display electrodes being composed of a sustain electrode and a scan electrode that define a main discharge gap therebetween. In such a gas discharge panel, each sustain electrode and scan electrode includes a plurality of line parts that extend in a row direction of the matrix. Furthermore, the main discharge gap and a line part gap between adjacent line parts are provided such that a discharge current waveform of the display electrodes has a single peak when the gas discharge panel is driven.
    Type: Application
    Filed: October 7, 2002
    Publication date: August 7, 2003
    Inventors: Nobuaki Nagao, Hidetaka Higashino, Toru Ando, Yuusuke Takada, Masaki Nishimura, Ryuichi Murai, Koichi Wani, Naoki Kosugi, Hiroyuki Tachibana, Yoshio Watanabe
  • Publication number: 20030112206
    Abstract: Plasma display panel (PDP), PDP display apparatus, and method for driving the PDP. The PDP is a surface discharge AC PDP having a first substrate and a second substrate arranged to face each other with barrier ribs interposed therebetween. A first electrode and a second electrode are arranged on a facing surface of the first substrate so as to extend parallel to each other, and are covered with a dielectric layer. A third electrode is arranged on a facing surface of the second substrate so as to extend orthogonally to the first and second electrodes. A discharge gas is enclosed within a discharge space defined between the interposed barrier ribs. In the above PDP, the discharge gas is a gas mixture containing xenon. The xenon component comprises at least 5 vol % and less than 100 vol %, and has a partial pressure of at least 2 kPa. Furthermore, the gap between the first and second electrodes in the PDP is greater than a height of the discharge space.
    Type: Application
    Filed: February 27, 2003
    Publication date: June 19, 2003
    Inventors: Toru Ando, Hiroyuki Tachibana, Naoki Kosugi
  • Patent number: 5609541
    Abstract: A facing fabric covering tooth faces of tooth rubber layers of a belt body is treated with a rubber composition in which hydrogenated acrylonitrile-butadiene rubber is mixed with N,N'-m-phenylenedimaleimide.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: March 11, 1997
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hiroyuki Tachibana, Mitumori Kasada, Kimichika Ohno