Patents by Inventor Takashi Akiyama

Takashi Akiyama 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: 20040122796
    Abstract: An information management system is capable of providing a user with an execution record in a way that restrains an increase in processing time and a decrease in throughput of the information processing system due to a wait for outputting the execution record even when there is large quantity of execution records. This information management system for managing the execution record of information processing includes a first storage unit, a second storage unit storing the execution record at a lower speed than by the first storage unit, an acquisition unit storing the execution record in the first and second storage units, an output unit referring to the execution record on the first or second storage unit and outputting the execution record to a predetermined output destination, and a switching unit switching over the reference source of the execution record for the output unit between the first and second storage units.
    Type: Application
    Filed: July 23, 2003
    Publication date: June 24, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Takashi Akiyama, Masaru Araki, Kazuya Omura
  • Patent number: 6746236
    Abstract: A combustion apparatus (1) with a burner port assembly (3) comprises an elongated first array of main burner ports (53) for jetting and burning a fuel gas mixture of a concentration to make main flames. The combustion apparatus (1) comprises at least one second arrays of auxiliary burner ports (63) for jetting and burning a further fuel gas mixture of a different concentration to make auxiliary flames, wherein the second arrays of said auxiliary burner ports (63) extend along the first array of said main burner ports (53). The burner port assembly (3) is constructed using inner and outer wall segments (52) together with outermost wall segments (52a,52f) or bands (58). One of the bands (58) faces the corresponding one of said outermost segments (52a,52f) so as to define between them collateral burner ports (61a,61b).
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 8, 2004
    Assignee: Noritz Corporation
    Inventors: Yasutaka Kuriyama, Takashi Hasegawa, Hidenori Hata, Masaaki Matsuda, Shingo Kimura, Masahiro Iguchi, Takashi Akiyama, Yasuhiko Sato, Koji Shimomura, Shuji Kameyama, Itsuo Nagai, Shigeo Sugie
  • Patent number: 6707515
    Abstract: The invention provides a liquid crystal display device having variety in design, comprising a first liquid crystal cell (16) and a second liquid crystal cell (18), made up of a liquid crystal layer sealed in a gap between a pair of transparent substrates having an electrode formed on each of the inner surfaces thereof, facing each other and disposed in that order from the visible side; an absorption-type polarizing film (12) disposed on the visible side of the first liquid crystal cell (16), for absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof; and a reflection-type polarizing film (14) disposed on a side of the second liquid crystal cell (18), opposite from the visible side thereof, for reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: March 16, 2004
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Masafumi Ide, Takashi Akiyama, Yasushi Kaneko, Naoyoshi Tohyama
  • Publication number: 20040027508
    Abstract: The invention is directed to a liquid crystal display apparatus comprising: a liquid crystal panel constructed by sandwiching a liquid crystal between a first transparent substrate having a plurality of data lines and a second transparent substrate having a plurality of scanning lines crossing the data lines; a data line driving integrated circuit connected to the plurality of data lines; and a scanning line driving integrated circuit for driving the plurality of scanning lines, wherein the data line driving integrated circuit is mounted on the first transparent electrode substrate, and the scanning line driving integrated circuit is mounted on the second transparent substrate, and wherein an swinging power supply integrated circuit for swinging a power supply potential of the scanning line driving integrated circuit while maintaining a constant amplitude in response to a liquid crystal driving AC signal is provided which is mounted directly on the first transparent substrate or on the second transparent subs
    Type: Application
    Filed: May 7, 2003
    Publication date: February 12, 2004
    Inventors: Takashi Akiyama, Kenichi Takahashi, Makoto Watanabe, Yuji Yano, Takashi Masuda
  • Publication number: 20040021629
    Abstract: An LED device comprises a white LED device and a red LED device. The white LED device has a substrate, a blue LED mounted on the substrate for emitting blue light, a transparent resin covering the blue LED and including phosphor particles. The phosphor particle has a quality to convert blue light to white light, if the particle contacts with the blue light. The red LED device has a substrate, a red LED mounted on the substrate for emitting red light, and a transparent resin covering the red LED device is disposed so that emitted red light mixes with the white light emitted from the white LED device.
    Type: Application
    Filed: July 16, 2003
    Publication date: February 5, 2004
    Applicant: Citizen Electronics Co., Ltd.
    Inventors: Masatoshi Sasuga, Yoshihisa Hirayama, Ryo Tamura, Takashi Akiyama
  • Publication number: 20030214725
    Abstract: In a field sequential display device, a desired chromaticity of the white level can be easily achieved and fluctuations in the white level caused by fluctuation factors such as temperature characteristics can be suppressed. A light source comprises red, green, and blue LEDs and a white LED. The white LED includes a blue LED covered with a yellow fluorescent material. One field is divided into display subfields of red, green, blue and white. Only the red LED turns on in the red display subfield, only the green LED turns on in the green display subfield, only the blue LED turns on in the blue display subfield, and only the white LED turns on in the white display subfield. A shutter is controlled in each subfield based on sub-image data of each color.
    Type: Application
    Filed: March 26, 2003
    Publication date: November 20, 2003
    Applicant: CITIZEN WATCH CO., LTD
    Inventor: Takashi Akiyama
  • 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
  • Publication number: 20030148241
    Abstract: A combustion apparatus (1) is generally composed of principal part (5), a supplementary part (6) and a burner port assembly (3). Four metal plates (7,8,10,11) constituting the principal and supplementary parts (5,6) are pressed to have in them several protuberances and recesses. These metal plates are laid one on another to form in them some hollow spaces and sealed regions. These hollow spaces communicate with each other to form a thin gas passage (22) together with a thick gas passage (73) in this combustion apparatus (1) in such a manner that its condition of thick and thin fuel combustion is rendered more stable.
    Type: Application
    Filed: January 21, 2003
    Publication date: August 7, 2003
    Applicant: Noritz Corporation
    Inventors: Masahiko Shimazu, Yasutaka Kuriyama, Takao Morigaki, Takashi Hasegawa, Hidenori Hata, Masaaki Matsuda, Shingo Kimura, Masahiro Iguchi, Takashi Akiyama, Yasuhiko Sato, Koji Shimomura, Toshikazu Miki, Shuji Kameyama, Keiichi Miura
  • Publication number: 20030143507
    Abstract: A combustion apparatus (1) with a burner port assembly (3) comprises an elongated first array of main burner ports (53) for jetting and burning a fuel gas mixture of a concentration to make main flames. The combustion apparatus (1) comprises at least one second arrays of auxiliary burner ports (63) for jetting and burning a further fuel gas mixture of a different concentration to make auxiliary flames, wherein the second arrays of said auxiliary burner ports (63) extend along the first array of said main burner ports (53). The burner port assembly (3) is constructed using inner and outer wall segments (52) together with outermost wall segments (52a,52f) or bands (58). One of the bands (58) faces the corresponding one of said outermost segments (52a,52f) so as to define between them collateral burner ports (61a,61b).
    Type: Application
    Filed: January 21, 2003
    Publication date: July 31, 2003
    Applicant: Noritz Corporation
    Inventors: Yasutaka Kuriyama, Takashi Hasegawa, Hidenori Hata, Masaaki Matsuda, Shingo Kimura, Masahiro Iguchi, Takashi Akiyama, Yasuhiko Sato, Koji Shimomura, Shuji Kameyama, Itsuo Nagai, Shigeo Sugie
  • 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
  • Patent number: 6577361
    Abstract: A first polarizer (absorption-type polarizer) (21) is disposed in a visible side of a liquid crystal cell (1) in which a liquid crystal layer (15) is sealed in-between a pair of transparent substrates (2, 5), and a second polarizer (reflection-type polarizer) (22), a third polarizer (an absorption-type polarizer or a reflection-type polarizer) (25), and an auxiliary light source (31) are disposed in order in the opposite side to the visible side and by polarizing emitted light from the auxiliary light source 31 by the third polarizer (25) and the second polarizer (22), polarization degree of light emitted from the second polarizer (22) into the liquid crystal cell (1) is improved, thereby unevenness of display caused by lack of the polarization degree and distribution of the polarization degree of the second polarizer (22) and contrast ratio are improved.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: June 10, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Takashi Akiyama
  • Patent number: 6542208
    Abstract: A liquid crystal display device (1) which can display information on both surfaces is structured: by respectively disposing reflection-type polarizing films (8, 9) which transmit a linearly polarized light in a direction parallel to a transmission axis and reflect a linearly polarized light in a direction orthogonal to the transmission axis on both sides of a liquid crystal cell (7) formed by sealing a liquid crystal layer (6) between a pair of two glass substrates (2, 3) with transparent electrodes (4, 5) formed on the opposed inner surfaces, while disposing absorption-type polarizing films (10, 11) respectively on both sides thereof, which transmit a linearly polarized light in a direction parallel to a transmission axis and absorb a linearly polarized light in a direction orthogonal to the transmission axis, and by disposing the reflection-type polarizing film and the absorption-type polarizing film (8) and (10), (9) and (11) which are disposed on the same side of the liquid crystal cell (7) so that the di
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: April 1, 2003
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Takashi Akiyama
  • 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
  • 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: 6297864
    Abstract: A single color liquid crystal display device is made up of a TN liquid crystal cell 7 with about 90° twisted nematic liquid crystals sealed in-between a pair of transparent substrates 1, 2 having respective transparent electrodes 3, 4, a first polarizing film 17 disposed on the visible side of the TN liquid crystal cell 7, and a second polarizing film 18, a retardation film 6 for circularly polarized light, a cholestric liquid crystal polymer sheet 10, a translucent light absorbing member 15 and a backlight 16 disposed successively on a side of the TN liquid crystal cell 7, opposite from the visible side thereof. With such a constitution, display is rendered visible even at night by lighting up the backlight 16, and colored display in a metallic tone can be indicated.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: October 2, 2001
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Yasushi Kaneko, Masafumi Ide, Takashi Akiyama
  • 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: 6274277
    Abstract: The present invention relates to an organic electrolyte battery configured by sealing power generating elements comprising an organic electrolyte by a positive can, a negative can and a gasket, wherein said organic electrolyte includes a lithium salt containing a sulfonic acid group as a solute and at least one selected from a group consisting of sulfolane, 3-methyl sulfolane and Tetraglyme as a solvent. The aim of the invention is to provide an organic electrolyte battery having an excellent discharge performance in a low temperature environment and a superior reliability during long term storage, as well as a high temperature resistance which enables the battery to be mounted onto a substrate according to the Reflow method.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: August 14, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tatsuo Mori, Tadayoshi Takahashi, Shinichi Waki, Nobuharu Koshiba, Takashi Akiyama
  • Patent number: D486816
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: February 17, 2004
    Assignee: Yamaha Corporation
    Inventors: Kazuhito Nakajima, Takashi Akiyama