Patents by Inventor Koji Nakagawa

Koji Nakagawa 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: 20080202798
    Abstract: An object of the invention is to provide a method for manufacturing a transparent substrate provided with a tin oxide thin film which can be satisfactorily patterned even by irradiation with a laser light having low energy because an ablation phenomenon occurs therewith. The invention relates to a method for manufacturing a transparent substrate bearing a circuit pattern, which comprises irradiating a thin-film-attached transparent substrate comprising a transparent substrate having thereon a transparent conductive film having a carrier concentration of 5×1019/cm3 or higher, with a laser light having a wavelength of 1,064 nm to form a circuit pattern on the transparent substrate.
    Type: Application
    Filed: April 28, 2008
    Publication date: August 28, 2008
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Ryohei SATOH, Koji Nakagawa, Eiji Morinaga, Reo Usui, Takamitsu Isono, Kenji Tanaka, Satoru Takaki, Kenichi Ebata, Hiroshi Sakamoto
  • Publication number: 20070190886
    Abstract: To provide a method for forming electrodes and/or black stripes for a plasma display substrate, wherein display electrodes, bus electrodes and optionally black stripes for a plasma display panel are formed of the same material by the same dry step, whereby a clear image having reflection prevented, can be displayed on a PDP display device with a low load on the environment, at low costs, with low resistance, without erosion by a dielectric. A method for forming electrodes and/or black stripes for a plasma display substrate, which comprises applying a laser beam to a mask layer formed on a transparent substrate to form openings at areas corresponding to the respective patterns of display electrodes, bus electrodes and optionally black stripes, then continuously forming an antireflection layer to provide an antireflection effect over the entire surface and an electrode layer, and applying again a laser beam to peel off the mask layer and at the same time to remove an unnecessary thin film layer.
    Type: Application
    Filed: March 27, 2007
    Publication date: August 16, 2007
    Applicant: ASAHI GLASS CO., LTD.
    Inventors: Ryohei Satoh, Yoshinori Iwata, Koji Nakagawa, Kenji Tanaka, Satoru Takaki
  • Publication number: 20070026890
    Abstract: When an exchange detects that a wireless base station is connected to an extension interface, the exchange outputs a sync signal to a communication channel of the extension interface. Based on the sync signal received through the communication channel, the wireless base station outputs a radio signal so as to communicate with a wireless handset based on the sync signal.
    Type: Application
    Filed: December 3, 2004
    Publication date: February 1, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Koji Nakagawa, Katsuya Matsufji, Manabu Fujioka, Koji Tanabe, Noriaki Matsumoto
  • Publication number: 20060240338
    Abstract: There is provided a method for forming a continuous thin film circuit pattern with good precision, at low cost and with low environmental burden; an electronic circuit fabricated by the same, and an electronic device including the same. There are a step for forming a mask layer 2 on a substrate 1; a step for forming an opening pattern in the mask layer 2; a step for forming a thin film 3 on the substrate 1 and on the mask layer 2; and a step for removing, from the substrate 1, the mask layer 2 and a portion of the thin film 3 formed on the mask layer 2; wherein the opening pattern is formed under a dry condition.
    Type: Application
    Filed: May 11, 2006
    Publication date: October 26, 2006
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryohei Satoh, Yoshinori Iwata, Koji Nakagawa, Reo Usui
  • Patent number: 6937301
    Abstract: A watch unit having a time-displaying section, including a reflection-type polarizing film 14 disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film 14, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film 14 and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: August 30, 2005
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Masafumi Ide, Takashi Akiyama, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Patent number: 6884444
    Abstract: A process for producing a drink by desalting seawater to separate it into water and a concentrate sufficiently containing essential minerals such as magnesium, calcium and iron and vitamins, etc., and adding to the water either one of the concentrate itself or essential mineral components such as water-soluble magnesium, calcium, iron, etc. separately obtained from a seawater concentrate; and health-promoting drinks obtained by the method.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 26, 2005
    Assignee: Ako Kasei Co., Ltd.
    Inventors: Yoshinari Ikegami, Hiroshi Tabuchi, Koji Nakagawa
  • Patent number: 6790142
    Abstract: An advertisement distribution system includes servers and a terminal. The servers prepare distribution information containing game information and advertisement information and transmits the prepared distribution information to the terminal. The terminal displays a game screen using the game information included in the distribution information, and also displays the advertisement information included in the distribution information on the game screen.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: September 14, 2004
    Assignees: Aruze Corporation, Seta Corporation
    Inventors: Kazuo Okada, Jun Fujimoto, Nobuyuki Nonaka, Koji Nakagawa
  • Patent number: 6646697
    Abstract: A liquid crystal display device is structured in such a manner that plural of liquid crystal display panels each comprised of a liquid crystal layer provided between a pair of transparent substrates which have electrodes disposed on each facing inner surface, and a reflection-type polarizing film is disposed at least on the top surface of the plural liquid crystal display panel, or between the liquid crystal display panels, or on the lowest surface of the plural liquid crystal display panel. By controlling a reflection state and a transmission state through the reflection-type polarizing film with electric voltage applied on the liquid crystal layer of the liquid crystal display panel, a display which represents the opening and closing of a metallic shutter is made possible.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: November 11, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Takashi Akiyama, Masafumi Ide, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Patent number: 6643224
    Abstract: A timepiece, in which a first liquid crystal display panel and a second liquid crystal display panel, each of which is constituted by sealing a liquid crystal layer in a gap between a pair of substrates formed with electrodes on opposed inner faces thereof respectively, are arranged in a case body having a cover glass with at least portions thereof overlapping, a first polarizing film is provided on an upper substrate of the first liquid crystal display panel on the cover glass side, a second polarizing film is provided between the first liquid crystal display panel and the second liquid crystal display panel, and a third polarizing film is provided on the lower side of a lower substrate of the second liquid crystal display panel respectively, the second polarizing film being a reflection type polarizing film, the first polarizing film, the first liquid crystal display panel, and the second polarizing film constitutes an upper display portion, and the second polarizing film, the second liquid crystal display
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: November 4, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Masafumi Ide, Takashi Akiyama, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa
  • Patent number: 6624858
    Abstract: A liquid crystal display panel for a timepiece comprises: a polymer dispersed liquid crystal cell (10) which is structured by respectively forming an opposed electrode (2) on a first substrate (1) of a pair of transparent substrates and a signal electrode (4) on a second substrate (3), and sealing a liquid crystal layer (5) containing a liquid crystal and a polymer material between the first substrate (1) and the second substrate (3) to form pixel portions at intersections between the signal electrode (4) and the opposed electrode (2); a reflector (15) which transmits a portion of light, placed on the side of a face, on which the opposed electrode (2) is not formed, of the first substrate (1); and an auxiliary light source placed on the outer side of the reflector (15), so that time information can be displayed with good visibility even when the auxiliary light source is turned off.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: September 23, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Koji Nakagawa, Kanetaka Sekiguchi
  • Patent number: 6580479
    Abstract: A watch unit having a time-displaying section, including a reflection-type polarizing film 14 disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film 14, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film 14 and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: June 17, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Masafumi Ide, Takashi Akiyama, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Patent number: 6577360
    Abstract: The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, an absorption-type polarizing film disposed on the visible side of the liquid crystal cell, a reflection-type polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side. The absorption-type polarizing film is a polarizing sheet absorbing a light linearly polarized in the direction orthogonal to the transmission axis thereof while the reflection-type polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light reflection film or a color filter may preferably be disposed under the reflection-type polarizing film. Further, a light diffusing layer or a light diffusing film may preferably be disposed on the visible side of the absorption-type polarizing film.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: June 10, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Takashi Akiyama, Masafuni Ide, Kanetaka Sekiguchi, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Publication number: 20020155891
    Abstract: An advertisement distribution system includes servers and a terminal. The servers prepare distribution information containing game information and advertisement information and transmits the prepared distribution information to the terminal. The terminal displays a game screen using the game information included in the distribution information, and also displays the advertisement information included in the distribution information on the game screen.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 24, 2002
    Applicant: Aruze Corporation
    Inventors: Kazuo Okada, Jun Fujimoto, Nobuyuki Nonaka, Koji Nakagawa
  • Publication number: 20020109808
    Abstract: A watch unit having a time-displaying section, including a reflection-type polarizing film 14 disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film 14, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film 14 and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.
    Type: Application
    Filed: April 16, 2002
    Publication date: August 15, 2002
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Kanetaka Sekiguchi, Masafumi Ide, Takashi Akiyama, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Publication number: 20020071069
    Abstract: A liquid crystal display panel for a timepiece comprises: a polymer dispersed liquid crystal cell (10) which is structured by respectively forming an opposed electrode (2) on a first substrate (1) of a pair of transparent substrates and a signal electrode (4) on a second substrate (3), and sealing a liquid crystal layer (5) containing a liquid crystal and a polymer material between the first substrate (1) and the second substrate (3) to form pixel portions at intersections between the signal electrode (4) and the opposed electrode (2); a reflector (15) which transmits a portion of light, placed on the side of a face, on which the opposed electrode (2) is not formed, of the first substrate (1); and an auxiliary light source placed on the outer side of the reflector (15), so that time information can be displayed with good visibility even when the auxiliary light source is turned off.
    Type: Application
    Filed: January 31, 2000
    Publication date: June 13, 2002
    Inventors: KOJI NAKAGAWA, KANETAKA SEKIGUCHI
  • Patent number: 6351297
    Abstract: A timepiece according to the invention is provided with a liquid crystal display panel capable of displaying at least either of time information or calendar information, and the liquid crystal display panel comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of inner surfaces thereof facing each other, polarizing sheets disposed on the external surface of the respective substrates, and a light absorption film disposed on the side of one of the polarizing sheets opposite from the liquid crystal cell. For each of the polarizing sheets, a sheet reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof is used so that either of a background or a display segment is displayed in a metallic color while the other is displayed in the color of the light absorption film.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: February 26, 2002
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Masafumi Ide, Takashi Akiyama, Kanetaka Sekiguchi, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Takashi Toida
  • Patent number: 6292439
    Abstract: A timepiece is provided with a liquid crystal display panel (10) capable of displaying at least either of time information and calendar information, and comprising a liquid crystal cell having a liquid crystal layer sealed in between a pair of transparent substrates, having an electrode on each of the inner surfaces thereof, facing each other, an absorption-type polarizing film disposed on the visible side of the liquid crystal cell, for absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof, a reflection-type polarizing film disposed on the side of the liquid crystal cell opposite from the visible side thereof for reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof, and a color filter disposed on the visible side of the absorption-type polarizing film, or between the absorption-type polarizing film and the reflection-type polarizing film.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: September 18, 2001
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yuichi Akiba, Masafumi Ide, Takashi Akiyama, Kanetaka Sekiguchi, Masami Kikuchi, Koji Nakagawa
  • Patent number: 6271901
    Abstract: The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, a first reflective polarizing film disposed on the visible side of the liquid crystal cell, a second reflective polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side, and a light absorption film disposed on the side of the second reflective polarizing film, opposite from the visible side. The first reflective polarizing film as well as the second reflective polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light absorption film and/or a backlight may preferably be disposed under the second reflective polarizing film.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: August 7, 2001
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Masafumi Ide, Takashi Akiyama, Kanetaka Sekiguchi, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Takashi Toida
  • Patent number: 5778745
    Abstract: With a device for reciprocating a cutting tool in small steps, the cutting tool is reciprocated in small steps in such a way that a feed mark (track of the cutting tool on the workpiece) is inverted each time the workpiece makes a round, by which the chip is varied in width and cut at a track crossing portion during the machining. Thus, chips are broken into short pieces so that the cutting efficiency and the cutting quality are improved and that the chip disposal is facilitated. Moreover, a safe turning process can be achieved.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 14, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshinori Furusawa, Yoshihiro Ikemoto, Koji Fujimoto, Koji Nakagawa, Toshifumi Miyake, Toshikazu Shogase
  • Patent number: 5656761
    Abstract: A method for pretreating a slurry containing a ruthenium catalyst for use in the continuous partial hydrogenation of monocyclic aromatic hydrocarbons is disclosed. In this method, the above-mentioned slurry is heat-treated at a temperature of from 60.degree. to 180.degree. C. for at least 10 minutes while agitating. By using the pretreated catalyst slurry in the above-mentioned continuous partial hydrogenation, partial hydrogenation reaction products can be efficiently obtained without suffering from the excess mixing of the components of the catalyst slurry into an oil phase containing the partial hydrogenation reaction products, thereby enabling operations and facilities required for separation to be simplified.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: August 12, 1997
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Hajime Nagahara, Koji Nakagawa