Patents by Inventor Tetsuya Shirai

Tetsuya Shirai 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: 10016144
    Abstract: A biological signal acquisition device includes an electrode made up of a plurality of cell electrodes, and a controller that acquires an electrical signal from a biological body through a pair of cell electrode groups made up of a part or all of the plurality of cell electrodes. The controller determines a contact condition between the part or all of the plurality of cell electrodes and the biological body, based on a detection signal acquired by scanning the part or all of the plurality of cell electrodes. Further, the controller selects the cell electrodes making up the pair of cell electrode groups, based on the determined contact condition so that contact resistances between the cell electrode groups and the biological body are equal between the pair of cell electrode groups.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 10, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Tetsuya Shirai
  • Publication number: 20170086699
    Abstract: A biological signal acquisition device includes an electrode made up of a plurality of cell electrodes, and a controller that acquires an electrical signal from a biological body through a pair of cell electrode groups made up of a part or all of the plurality of cell electrodes. The controller determines a contact condition between the part or all of the plurality of cell electrodes and the biological body, based on a detection signal acquired by scanning the part or all of the plurality of cell electrodes. Further, the controller selects the cell electrodes making up the pair of cell electrode groups, based on the determined contact condition so that contact resistances between the cell electrode groups and the biological body are equal between the pair of cell electrode groups.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventor: TETSUYA SHIRAI
  • Publication number: 20130088145
    Abstract: A plasma display panel includes a front plate and a rear plate opposing the front plate. The front plate has a display region to generate a discharge between the front plate and the rear plate, and a non-display region provided in an outer periphery of the display region. A discharge gap is provided between a first electrode and a second electrode of the front plate. The first electrode includes a plurality of first projecting parts projecting from a first base part toward the discharge gap. The second electrode includes a plurality of second projecting parts projecting from a second base part toward the discharge gap. The discharge gap in the non-display region is larger than the discharge gap in the display region.
    Type: Application
    Filed: January 24, 2012
    Publication date: April 11, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Tetsuya Shirai, Kota Araki, Tadashi Nakagawa, Koichi Matsumoto
  • Patent number: 8154476
    Abstract: A plasma display device includes plasma display panel and a data driver. Plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes, each having scan electrode and sustain electrode. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and data electrodes. Data electrodes have a plurality of main electrode parts) formed in portions facing the display electrodes, and wiring parts that connect main electrode parts and have a width smaller than the widths of main electrode parts. Further, the corner of main electrode part is chamfered.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Tetsuya Shirai, Katsutoshi Shindo
  • Patent number: 8081173
    Abstract: A plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes, each made of a scan electrode and a sustain electrode. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and the data electrodes. The data electrodes have a plurality of main electrode parts in portions faced to the display electrodes, and wiring parts connecting the main electrode parts together and narrower than the main electrode parts. Further, each main electrode part is disposed so that ends thereof in the longitudinal direction of the data electrode substantially correspond to the furthest separated long sides of the scan electrode and the sustain electrode in the discharge cell.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: December 20, 2011
    Assignee: Panasonic Corporation
    Inventors: Katsutoshi Shindo, Tetsuya Shirai
  • Patent number: 8026907
    Abstract: A plasma display device includes plasma display panel and a data driver. Plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and data electrodes. Data electrodes have a plurality of main electrode parts provided in portions facing the display electrodes, and wiring parts that connect main electrode parts together and have a width smaller than the widths of main electrode parts. The widths of main electrode parts in a peripheral portion of plasma display panel are larger than the widths of main electrode parts in a central portion thereof.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: September 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Tetsuya Shirai, Katsutoshi Shindo
  • Publication number: 20090289925
    Abstract: A plasma display device includes plasma display panel and a data driver. Plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and data electrodes. Data electrodes have a plurality of main electrode parts provided in portions facing the display electrodes, and wiring parts that connect main electrode parts together and have a width smaller than the widths of main electrode parts. The widths of main electrode parts in a peripheral portion of plasma display panel are larger than the widths of main electrode parts in a central portion thereof.
    Type: Application
    Filed: February 27, 2007
    Publication date: November 26, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Shirai, Katsutoshi Shindo
  • Publication number: 20090278822
    Abstract: A plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes, each made of a scan electrode and a sustain electrode. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and the data electrodes. The data electrodes have a plurality of main electrode parts in portions faced to the display electrodes, and wiring parts connecting the main electrode parts together and narrower than the main electrode parts. Further, each main electrode part is disposed so that ends thereof in the longitudinal direction of the data electrode substantially correspond to the furthest separated long sides of the scan electrode and the sustain electrode in the discharge cell.
    Type: Application
    Filed: February 27, 2007
    Publication date: November 12, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Katsutoshi Shindo, Tetsuya Shirai
  • Publication number: 20090153440
    Abstract: A plasma display device includes plasma display panel and a data driver. Plasma display panel includes a front substrate and a rear substrate faced to each other to form a discharge space therebetween. The front substrate includes a plurality of display electrodes, each having scan electrode and sustain electrode. The rear substrate includes a plurality of data electrodes intersected with the display electrodes. Discharges cells are formed at the intersections of the display electrodes and data electrodes. Data electrodes have a plurality of main electrode parts) formed in portions facing the display electrodes, and wiring parts that connect main electrode parts and have a width smaller than the widths of main electrode parts. Further, the corner of main electrode part is chamfered.
    Type: Application
    Filed: February 27, 2007
    Publication date: June 18, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Shirai, Katsutoshi Shindo
  • Patent number: 7151343
    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: Grant
    Filed: March 25, 2004
    Date of Patent: December 19, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Tachibana, Morio Fujitani, Yasuyuki Noguchi, Tetsuya Shirai
  • 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: 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
  • Patent number: 6713972
    Abstract: There is provided a novel method of lighting an ultra-high pressure discharge lamp (A1) having a discharge bulb (1) made of quartz glass in which a pair of electrodes (2) and (3) are disposed facing each other, the method including: lighting the lamp with alternating current; and providing a time period of at least one second for which the alternating current assumes a lighting frequency of 5 Hz or lower during a period for which the lamp lights, wherein the electrodes (2) and (3) each have a current withstanding capability against a current 1.5 times or more as high as a current value at which the lamp lights stably. This method enables the ultra-high pressure discharge lamp to have a longer life and exhibit a higher luminance.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: March 30, 2004
    Assignee: Phoenix Electric Co., Ltd.
    Inventors: Atsuji Nakagawa, Toshitaka Hujii, Hisao Hurukawa, Tomihiko Ikeda, Tetsuya Shirai
  • Publication number: 20020105288
    Abstract: There is provided a novel method of lighting an ultra-high pressure discharge lamp (A1) having a discharge bulb (1) made of quartz glass in which a pair of electrodes (2) and (3) are disposed facing each other, the method including: lighting the lamp with alternating current; and providing a time period of at least one second for which the alternating current assumes a lighting frequency of 5 Hz or lower during a period for which the lamp lights, wherein the electrodes (2) and (3) each have a current withstanding capability against a current 1.5 times or more as high as a current value at which the lamp lights stably. This method enables the ultra-high pressure discharge lamp to have a longer life and exhibit a higher luminance.
    Type: Application
    Filed: July 18, 2001
    Publication date: August 8, 2002
    Applicant: Phoenix Electric Co., Ltd.
    Inventors: Atsuji Nakagawa, Toshitaka Hujii, Hisao Hurukawa, Tomihiko Ikeda, Tetsuya Shirai
  • Patent number: 6285130
    Abstract: A metal halide lamp includes a pair of electrodes with a spacing of 0.5 to 1.5 mm therebetween, an envelope enclosing the pair of electrodes, and at least one metal halide, other than a mercury halide, that is encapsulated in the envelope in an amount of from 0.04 to 0.3 mg/cc, wherein the metal halide lamp operates in a power range from 75 to 270 watts per millimeter across the spacing between the pair of electrodes.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: September 4, 2001
    Assignee: Phoenix Electric Co., Ltd.
    Inventors: Atsuji Nakagawa, Toshitaka Fujii, Tetsuya Shirai, Tatsuo Yamamoto, Tomihiko Ikeda