Patents by Inventor Masaru Fujita

Masaru Fujita 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: 20080062348
    Abstract: A liquid crystal display device includes a metal case having a display window, a frame member made of synthetic resin, a liquid crystal display panel disposed between the metal case and the frame member, an integrated circuit chip driving the liquid crystal display panel, and disposed between the metal case and the frame member, a first print circuit board, and a second print circuit board electrically connected to the first print circuit board, and a flexible wiring substrate connected to the liquid crystal display panel and the first print circuit board. The first print circuit board includes at least one ground pad which is connected to the metal case, and the second print circuit board includes a power supply circuit and a connector connected to an external member of the liquid crystal display device, and supplies power to the first print circuit board via a flat cable.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 13, 2008
    Inventors: Masumi SASUGA, Junichi OHWADA, Akira KOBAYASHI, Masaru FUJITA, Hiroshi NAKAMOTO, Ryu ONO, Tsutomu ISONO
  • Patent number: 7262822
    Abstract: A liquid crystal display device which includes a liquid crystal display panel, a metal shield casing covering a periphery of the liquid crystal display panel, a plurality of fluorescent lamps arranged below the liquid crystal panel, a back light support supporting the plurality of fluorescent lamps, and a lower casing fixed to the metal shield casing. The back light support is fixed in the lower casing and comprises a plurality of slits, wherein one end of the plurality of fluorescent lamps is disposed with respect to a respective one of the plurality of slits.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: August 28, 2007
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 7256942
    Abstract: A single lens element used for converting a divergent pencil of rays, radiated from a light source, into a predetermined convergent state, wherein the single lens element is made from a resin and has a positive optical power due to a refraction effect and a positive optical power due to a diffraction effect, the diffraction effect is based on a diffraction structure formed on at least one of an incident side surface and an exit side surface of the single lens element, and the following expressions are satisfied: 0.1<NA<0.3 0.4<T/f<0.75 2.2<fr/f<3 here, f is a focal length of the entire single lens element, fr is a focal length due to the refraction effect of the single lens element, T is a thickness of the single lens element on an optical axis, and NA is a numerical aperture of a single lens element at an incident side.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: August 14, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michihiro Yamagata, Motonobu Yoshikawa, Yasuhiro Tanaka, Yoshiharu Yamamoto, Daizaburo Matsuki, Masaru Fujita, Toshihiko Shibita
  • Publication number: 20070097523
    Abstract: A single lens element used for converting a divergent pencil of rays, radiated from a light source, into a predetermined convergent state, wherein the single lens element is made from a resin and has a positive optical power due to a refraction effect and a positive optical power due to a diffraction effect, the diffraction effect is based on a diffraction structure formed on at least one of an incident side surface and an exit side surface of the single lens element, and the following expressions are satisfied: 0.1<NA<0.3 0.4<T/f<0.75 2.2<fr/f<3 here, f is a focal length of the entire single lens element, fr is a focal length due to the refraction effect of the single lens element, T is a thickness of the single lens element on an optical axis, and NA is a numerical aperture of a single lens element at an incident side.
    Type: Application
    Filed: September 9, 2004
    Publication date: May 3, 2007
    Inventors: Michihiro Yamagata, Motonobu Yoshikawa, Yasuhiro Tanaka, Yoshiharu Yamamoto, Daizaburo Matsuki, Masaru Fujita, Toshihiko Shibita
  • Publication number: 20060033872
    Abstract: A liquid crystal display device which includes a liquid crystal display panel, a metal shield casing covering a periphery of the liquid crystal display panel, a plurality of fluorescent lamps arranged below the liquid crystal panel, a back light support supporting the plurality of fluorescent lamps, and a lower casing fixed to the metal shield casing. The back light support is fixed in the lower casing and comprises a plurality of slits, wherein one end of the plurality of fluorescent lamps is disposed with respect to a respective one of the plurality of slits.
    Type: Application
    Filed: October 12, 2005
    Publication date: February 16, 2006
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Publication number: 20050157241
    Abstract: A liquid crystal display device includes first and second substrates with a liquid crystal layer therebetween, and a transparent conductor which is formed at a liquid crystal side of at least one of the first and the second substrates. At least a projected portion is formed on the transparent conductor in a pixel region, and a material of the projected portion is different from a material of the transparent conductor.
    Type: Application
    Filed: February 9, 2005
    Publication date: July 21, 2005
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 6856362
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a metal shield casing which covers a periphery of the liquid crystal display panel. The metal shield casing has a plurality of fixing pawls and a plurality of fixing hooks.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: February 15, 2005
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Publication number: 20020191126
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a metal shield casing which covers a periphery of the liquid crystal display panel. The metal shield casing has a plurality of fixing pawls and a plurality of fixing hooks.
    Type: Application
    Filed: August 15, 2002
    Publication date: December 19, 2002
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 6466282
    Abstract: A liquid crystal display device including a liquid crystal display panel, a first driver circuit substrate, a second driver unit substrate and a flexible connector. The first driver circuit substrate provides electrical connection for at least one driver chip for the liquid crystal display panel with the first driver circuit being disposed at a peripheral portion of the liquid crystal display panel. The second driver circuit substrate has at least a connector to be connected with an external circuit with the second driver circuit substrate being disposed in superposed relation to at least a portion of the first driver circuit substrate. The flexible connector electrically connects at least a part of the first driver circuit substrate to at least a part of the second driver substrate.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: October 15, 2002
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Publication number: 20010012087
    Abstract: A liquid crystal display device including a liquid crystal display panel, a first driver circuit substrate, a second driver unit substrate and a flexible connector. The first driver circuit substrate provides electrical connection for at least one driver chip for the liquid crystal display panel with the first driver circuit being disposed at a peripheral portion of the liquid crystal display panel. The second driver circuit substrate has at least a connector to be connected with an external circuit with the second driver circuit substrate being disposed in superposed relation to at least a portion of the first driver circuit substrate. The flexible connector electrically connects at least a part of the first driver circuit substrate to at least a part of the second driver substrate.
    Type: Application
    Filed: January 18, 2001
    Publication date: August 9, 2001
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 6195148
    Abstract: A liquid crystal display device including a liquid crystal display panel, a first driver circuit substrate, a second driver unit substrate and a flexible connector. The first driver circuit substrate provides electrical connection for at least one driver chip for the liquid crystal display panel with the first driver circuit being disposed at a peripheral portion of the liquid crystal display panel. The second driver circuit substrate has at least a connector to be connected with an external circuit with the second driver circuit substrate being disposed in superposed relation to at least a portion of the first driver circuit substrate. The flexible connector electrically connects at least a part of the first driver circuit substrate to at least a part of the second driver substrate.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: February 27, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 5897188
    Abstract: A liquid crystal display device which comprises: a shield casing made of a metal plate and having fixing pawls and fixing hooks; an middle frame for holding a liquid crystal display; and a lower casing for packaging back lights, wherein the fixing pawls of said shield casing are bent in corresponding recesses formed in the middle frame, and wherein the fixing hooks of said shield casing are fitted on corresponding projections formed on the lower casing.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: April 27, 1999
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 5727634
    Abstract: A fire detecting/extinguishing apparatus according to the present invention is comprised of a fire detecting unit which monitors to detect a fire within a monitoring area, the fire detecting unit stepwise scanning in a vertical direction while scanning the fire monitoring area in the vertical direction at each step of the horizontal scanning; a water discharging unit having a water discharging nozzle for discharging water to the monitoring area, the water discharging unit being rotatable in the horizontal direction, the water discharging unit being directed toward a position of the fire based on the fire detection by the fire detecting unit; a swinging unit which swings the water discharging unit in the horizontal direction; and a casing in which the fire detecting unit and the water discharging unit are housed as a single unit. Further, the apparatus of the present invention includes a cover fixed to a side of the water discharging nozzle which is opposite to the side of the water discharging nozzle.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: March 17, 1998
    Assignee: Hochiki Corporation
    Inventors: Hiroshi Ishida, Akira Asoma, Shuji Matsumoto, Teruo Iwata, Hiroyuki Shibuya, Suguru Shimokawa, Keiichi Kawaguchi, Masaru Fujita, Toshiaki Matsumoto
  • Patent number: 5680183
    Abstract: A liquid crystal display device which comprises: a shield casing made of a metal plate and having fixing pawls and fixing hooks; an middle frame for holding a liquid crystal display; and a lower casing for packaging back lights, wherein the fixing pawls of said shield casing are bent in corresponding recesses formed in the middle frame, and wherein the fixing hooks of said shield casing are fitted on corresponding projections formed on the lower casing.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 21, 1997
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 5678171
    Abstract: A mobile receiver for satellite broadcast comprises directive antennas, a navigation unit for generating a navigation signal representing a position and an attitude of an airplane, a control unit for generating a control signal for controlling the antennas, on the basis of the navigation signal from the navigation unit and prestored information indicating a position of a broadcasting satellite, and a drive unit for driving the antennas in response to the antenna control signal from the control unit to orient the directivity of the antennas toward the broadcasting satellite.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: October 14, 1997
    Assignees: Nippon Hoso Kyokai, All Nippon Airways Co., Ltd.
    Inventors: Noboru Toyama, Masaru Fujita, Osamu Ono, Hisaji Nakamura
  • Patent number: 5444316
    Abstract: A ten-phase and twenty-main pole hybrid stepping motor is driven by a five-phase driving pulse. The rotor has N and S pole tooth gears at ends of a rotor shaft. The stator has a cylindrical hollow body. Nos. 1-20 main poles extend from an inner wall of the hollow body toward the rotor shaft in a plane perpendicular to the rotor shaft so that the twenty main poles surround the N and S pole teeth in the plane perpendicular to the rotor shaft. Each main pole has a free end at which two stator teeth are formed. The stator teeth face the teeth of N and S pole teeth gears. A coil is wound around each main pole for excitation of the main pole. Nos. 1-10 main poles and Nos. 11-20 main poles face each other in the radial direction of the rotor respectively. An arbitrary main pole and a fifth next main pole always have a 90-degree relation. Positions of the teeth on Nos. 1-10 and Nos. 11-20 main poles are respectively determined by an expression with non-overlapping m being substituted:Pt.times.k+m.times..theta.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: August 22, 1995
    Assignee: Ishikawajima Harima Heavy Industries Co., Ltd.
    Inventors: Hiroo Ohya, Toshiaki Sato, Toshio Takahashi, Makoto Wakakuwa, Mizukami Masao, Masaru Fujita, Sadao Miyazawa, Noriaki Aruga
  • Patent number: 5432626
    Abstract: A liquid crystal display device which includes a shield casing made of a metal plate and having fixing pawls and fixing hooks, an middle frame for holding a liquid crystal display, and a lower casing for packaging back lights. The fixing pawls of said shield casing are bent in corresponding recesses formed in the middle frame. Also, the fixing hooks of said shield casing are fitted on corresponding projections formed on the lower casing.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: July 11, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Masumi Sasuga, Junichi Ohwada, Akira Kobayashi, Masaru Fujita, Hiroshi Nakamoto, Ryu Ono, Tsutomu Isono
  • Patent number: 4969187
    Abstract: In a telephone set, a base unit has a front recess defined by a bottom and a sloping wall including a front part and a rear part, and a rear recess, and a protrusion is provided on the front part of the sloping wall and extends rearward. A locking piece is provided to extend through an aperture formed in the rear part of the sloping wall of the front recess. The locking piece extends toward the protrusion and is pushed toward the protrusion by a spring. The spring permits the retraction of the locking piece into the enclosure of the base unit. A buffer member having a resiliency is provided in the center of the bottom of the front recess. A front dent provided on the front part of the front convex part engages the protrusion. A rear dent provided on the rear part of the front convex part engages the locking piece.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: November 6, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshihiro Hattori, Yoshihiro Tsujita, Masaru Fujita