Patents by Inventor Kenji Ogiro

Kenji Ogiro 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: 8085534
    Abstract: A flat display apparatus includes a display unit; a housing configured to accommodate the display unit; a support member configured to support the housing; and a cooling device configured to radiate heat of a heating element which is mounted in the housing, wherein the cooling device includes a first far infrared ray transfer member which is thermally connected to the heating element in the housing and a second far infrared ray transfer member which is thermally connected to an external portion of the housing at a rear surface side, wherein a radiating surface of the first far infrared ray transfer member and an absorbing surface of the second far infrared ray transfer member are disposed to oppose each other with the housing interposed therebetween, and wherein heat radiated from the first far infrared ray transfer member is radiated at both plane surface of the second far infrared ray transfer member.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: December 27, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Ogiro, Nobuyuki Kaku
  • Patent number: 7967462
    Abstract: A light source includes a plurality of light emitting elements, and each light emitting element is disposed in such a manner that a direction of an optical axis of the light emitting element having a highest luminance is disposed at a predetermined inclination angle relative to a plane of the liquid crystal display. The optical guide member has an optical guide portion of a wedge shape having a first flat plane generally perpendicular to the optical axis of each light emitting element for receiving light from each light emitting element and a second flat plane having a predetermined angle relative to the optical axis and intersecting the first flat plane at an acute angle for reflecting light. A plurality of optical guide portions are disposed in a plane and formed integrally along a predetermined direction corresponding to the inclination direction of the light emitting elements.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 28, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Ogiro, Nobuo Masuoka, Kouji Fujita
  • Patent number: 7913507
    Abstract: An electronic equipment cooling system of the invention comprises: a heat receiver; a closed refrigerant circulation path (including: the heat receiver; a refrigerant condenser; a refrigerant pump; and a refrigerant tank); and a closed gas circulation path (including: the heat receiver; the refrigerant condenser; and a blower). The heat receiver includes: a heat receiver base contacting a heat generating component; a box; a gas flow space surrounded by the heat receiver base and box; a refrigerant inlet through which a liquid refrigerant dribbles down along an internal surface of the heat receiver base; a liquid refrigerant spreader used for spreading the liquid refrigerant thereacross and having a mesh portion with an opening for passing a vapor of the refrigerant into the gas flow space; a gas inlet through which a gas is fed from the blower; and a gas outlet for venting the gas containing the vapor of the refrigerant.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: March 29, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Kondo, Tatsuya Saito, Takeshi Kato, Kenji Ogiro
  • Patent number: 7826217
    Abstract: It is an object to provide a cooling device for optimally cooling a semiconductor device on a CPU blade which is detachable with respect to an electronic apparatus using the cooling device with compact structure for reducing power consumption. A cooling device for cooling a semiconductor device disposed on an electronic circuit substrate in a casing of an electronic apparatus, comprising a first cooling unit comprising a first heat absorbing portion and a first heat releasing portion, and a second cooling unit comprising a second heat absorbing portion and a second heat releasing portion, wherein the first heat absorbing portion is disposed in contact with the semiconductor device, the second heat absorbing portion is detachably disposed in contact with the first heat releasing portion, a phase-change refrigerant is contained in the first cooling unit, and the second heat releasing portion is disposed outside the casing.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: November 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiro Kondo, Akio Idei, Shigeyasu Tsubaki, Hitoshi Matsushima, Tadakatsu Nakajima, Hiroyuki Toyoda, Tomoo Hayashi, Tatsuya Saito, Takeshi Kato, Kenji Ogiro
  • Publication number: 20100008044
    Abstract: A flat display apparatus includes a display unit; a housing configured to accommodate the display unit; a support member configured to support the housing; and a cooling device configured to radiate heat of a heating element which is mounted in the housing, wherein the cooling device includes a first far infrared ray transfer member which is thermally connected to the heating element in the housing and a second far infrared ray transfer member which is thermally connected to an external portion of the housing at a rear surface side, wherein a radiating surface of the first far infrared ray transfer member and an absorbing surface of the second far infrared ray transfer member are disposed to oppose to each other with the housing interposed therebetween, and wherein heat radiated from the first far infrared ray transfer member is radiated at both plane surface of the second far infrared ray transfer member.
    Type: Application
    Filed: April 23, 2009
    Publication date: January 14, 2010
    Applicant: Hitachi, Ltd.
    Inventors: Kenji OGIRO, Nobuyuki KAKU
  • Publication number: 20090201668
    Abstract: A light source includes a plurality of light emitting elements, and each light emitting element is disposed in such a manner that a direction of an optical axis of the light emitting element having a highest luminance is disposed at a predetermined inclination angle relative to a plane of the liquid crystal display. The optical guide member has an optical guide portion of a wedge shape having a first flat plane generally perpendicular to the optical axis of each light emitting element for receiving light from each light emitting element and a second flat plane having a predetermined angle relative to the optical axis and intersecting the first flat plane at an acute angle for reflecting light. A plurality of optical guide portions are disposed in a plane and formed integrally along a predetermined direction corresponding to the inclination direction of the light emitting elements.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 13, 2009
    Inventors: Kenji Ogiro, Nobuo Masuoka, Kouji Fujita
  • Publication number: 20090154104
    Abstract: It is an object to provide a cooling device for optimally cooling a semiconductor device on a CPU blade which is detachable with respect to an electronic apparatus using the cooling device with compact structure for reducing power consumption. A cooling device for cooling a semiconductor device disposed on an electronic circuit substrate in a casing of an electronic apparatus, comprising a first cooling unit comprising a first heat absorbing portion and a first heat releasing portion, and a second cooling unit comprising a second heat absorbing portion and a second heat releasing portion, wherein the first heat absorbing portion is disposed in contact with the semiconductor device, the second heat absorbing portion is detachably disposed in contact with the first heat releasing portion, a phase-change refrigerant is contained in the first cooling unit, and the second heat releasing portion is disposed outside the casing.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 18, 2009
    Inventors: Yoshihiro Kondo, Akio Idei, Shigeyasu Tsubaki, Hitoshi Matsushima, Tadakatsu Nakajima, Hiroyuki Toyoda, Tomoo Hayashi, Tatsuya Saito, Takeshi Kato, Kenji Ogiro
  • Publication number: 20090133852
    Abstract: A cooling apparatus for use in electronic equipment, being small in sizes and simple in the structures thereof, for achieving an increasing cooling capacity, comprises: a heat receiving member, which is thermally connected with a heat generating body, and which is configured to receive heat by means of a coolant flowing within an inside thereof; and a heat radiating member, which is configured to radiate the heat received within the heat receiving member, wherein the heat receiving member has a plate-like heat receiving base body, which is thermally connected with the heat generating body, and a heat receiving case body, which covers over the heat receiving base body, wherein the body members are joined with, so as to define a sealed space for running the coolant therein.
    Type: Application
    Filed: October 29, 2008
    Publication date: May 28, 2009
    Inventors: Kenji Ogiro, Nobuo Masuoka, Takeshi Hizono, Kenichi Shiode
  • Publication number: 20090066878
    Abstract: A liquid crystal display apparatus, comprises: a liquid crystal display (3); and a plural numbers of light emitting diodes (7), as a directly underlying type backlight, which is disposed on a rear surface of the liquid crystal display, so as to irradiate lights upon said liquid crystal display, wherein a translucent light guidance member (5), which is provided at least corresponding to each one or more of the plural numbers of light emitting diodes, and the translucent light guidance member (5) is in a cylindrical configuration, and reflection surfaces are defined on each of outer wall surfaces (53) and inner wall surfaces (52) of the cylindrical light guidance member, so as to reflect the lights from the light emitting diodes upon those reflection surfaces, and thereby guiding them onto a side of the liquid crystal display by those reflection surfaces.
    Type: Application
    Filed: July 3, 2008
    Publication date: March 12, 2009
    Inventors: Kenji Ogiro, Nobuyuki Kaku, Fukuyasu Abe
  • Publication number: 20090000332
    Abstract: An electronic equipment cooling system of the invention comprises: a heat receiver; a closed refrigerant circulation path (including: the heat receiver; a refrigerant condenser; a refrigerant pump; and a refrigerant tank); and a closed gas circulation path (including: the heat receiver; the refrigerant condenser; and a blower). The heat receiver includes: a heat receiver base contacting a heat generating component; a box; a gas flow space surrounded by the heat receiver base and box; a refrigerant inlet through which a liquid refrigerant dribbles down along an internal surface of the heat receiver base; a liquid refrigerant spreader used for spreading the liquid refrigerant thereacross and having a mesh portion with an opening for passing a vapor of the refrigerant into the gas flow space; a gas inlet through which a gas is fed from the blower; and a gas outlet for venting the gas containing the vapor of the refrigerant.
    Type: Application
    Filed: June 12, 2008
    Publication date: January 1, 2009
    Inventors: Yoshihiro Kondo, Tatsuya Saito, Takeshi Kato, Kenji Ogiro
  • Publication number: 20080186671
    Abstract: In the electronic device such as computer and server which is operated in full day time and having high load condition in a limited time schedule, a suitable cooling device is provided for the heat generating elements which consists of the electronic device. The cooling device also has an feature to avoid the enlargement of the cooling device and have high power efficiency. The heat generated in the heat generating element is both transferred to a heat sink and a heat accumulator. The heat accumulator is also connected to the heat sink. The heat generating element and the heat accumulator is thermally connected by a heat pipe. And the heat accumulator and the heat sink is also thermally connected by another heat pipe.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 7, 2008
    Inventors: Yoshihiro KONDO, Kenji Ogiro
  • Patent number: 6874157
    Abstract: A disk case in which the downsizing of a disk is enabled, maintaining the ease of handling in the same manner as the current 8-cm disk cartridge, and that can be mounted on the current 12-cm drive by using a simplified adapter is provided. The shape of the disk case that involves an 8-cm disk is not a square but almost a circle. Further, the opening width of the disk case is 39 mm or more. An arm for ejecting the disk is arranged at the disk case opening side.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: March 29, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hirofumi Taguchi, Kenji Ogiro, Kyuichiro Nagai, Hikaru Mizutani, Shyunji Furukawa, Minoru Fujita
  • Publication number: 20020185393
    Abstract: A disk case in which the downsizing of a disk is enabled, maintaining the ease of handling in the same manner as the current 8-cm disk cartridge, and that can be mounted on the current 12-cm drive by using a simplified adapter is provided.
    Type: Application
    Filed: March 29, 2002
    Publication date: December 12, 2002
    Inventors: Hirofumi Taguchi, Kenji Ogiro, Kyuichiro Nagai, Hikaru Mizutani, Shyunji Furukawa, Minoru Fujita
  • Patent number: 6137759
    Abstract: A removable disk drive system for mounting a disk cartridge containing a disk, and adapted to be detachably connected to external equipment through a PC card slot therein specified under a PCMCIA standard, and thereby to be operative with the external equipment having the PC card slot.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: October 24, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Ogiro, Nobuo Masuoka
  • Patent number: 5748238
    Abstract: A video camera with a VTR for recording/playback of images communicates with a camera/VTR station by means of an opto-electronic link. A first opto-electronic link operates when the camera is positioned away from the camera/VTR station, and a second opto-electronic link operates when the camera is positioned on the camera/VTR station. The first opto-electronic link operates when the video camera does not record.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: May 5, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Wakabayashi, Kenji Ogiro, Takanori Nishiyama, Hiroto Takita, Yutaka Takami, Hironobu Satoh, Takesuke Maruyama, Masahiko Yatsu, Kenji Kobayashi, Shigeyuki Itoh, Kenji Matsumoto, Iwao Aizawa
  • Patent number: 5739976
    Abstract: As a method of increasing the storage capacity of a magnetic recording and reproducing apparatus for recording and reproducing information to and from a magnetic tape in a cartridge, there is a helical scan recording method in which the magnetic tape is diagonally wound around a drum which rotates a magnetic head. With an apparatus adapted to this method, the disposition of the cartridge and the take-up reel for taking up the magnetic tape on the same plane arises a necessity of considerably bending the magnetic tape at the drum portion and, accordingly, the magnetic tape is damaged. In order to prevent the damage of the foregoing type, the tape passage surface from the cartridge to the drum and the tape passage from the drum to the take-up reel are formed by an angle at which the direction in which the magnetic tape is moved is changed due to winding of the magnetic tape around the drum so that the magnetic tape is not bent excessively.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: April 14, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Kazuo Sakai, Fumio Takeda, Taichiro Yamashita, Fujio Tajima, Takao Terayama, Tomokazu Ishii, Kooetsu Okuyama, Takayuki Munemoto, Nobuyuki Kaku, Kenmei Masuda, Shigeyuki Kobata, Fukuyasu Abe, Kenji Ogiro, Shigemitsu Higuchi
  • Patent number: 5610655
    Abstract: A video camera recorder having a watertight housing including a housing body, a housing bottom and a closure for closing an opening of the housing. The opening is watertightly closed by a watertight structure including an annular bead formed in the housing and a packing provided to the closure. An electronic view finder is watertightly isolated in a space defined between a partition wall, arranged within the housing, and the housing. A cover is provided between the closure and an electronic equipment, such as a video deck, disposed within the housing, and a packing is arranged between the housing and the cover so that the space surrounded by the cover and the housing is held watertightly. Alternatively, the gap between a portion of a video deck disposed in the housing and a housing is watertightly sealed, the portion of the video deck projecting from the housing the opening. A water absorbent or a water sensor is disposed in a recess formed in the housing.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: March 11, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Wakabayashi, Kenji Ogiro
  • Patent number: 5608585
    Abstract: A tape run control unit in the magnetic recording/reproducing apparatus is provided with a discrimination element and a control element. The discrimination element detects a stand-by time until a signal to be recorded is received in repositioning of the tape and generates a discrimination signal for discriminating the length of the stand-by time. The control element controls tape run driving unit such as a capstan motor during the reposition and controls the stop position of the tape such that a magnetic head scans the portion of the tape where no data is recorded. After completion of repositioning, furthermore, the control element works according to a discrimination signal so as to select the stop mode which involves the release of pinch roller when the stand-by time is long and to select the mode for simply stopping only the capstan when the stand-by time is short.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 4, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Kenmei Masuda, Kenji Ogiro, Hidefumi Goto, Sadao Hirose, Satoshi Fujino, Shinya Fujimori, Katsuhiko Izumi
  • Patent number: 5565919
    Abstract: A camera with a VTR communicates with a camera station by means of an opto-electronic link. A first opto-electronic link operates when the camera is positioned away from the camera station, and a second opto-electronic link operates when the camera is positioned on the camera station. The first opto-electronic link operates only when the VTR is reproducing.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: October 15, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Wakabayashi, Kenji Ogiro, Takanori Nishiyama, Hiroto Takita, Yutaka Takami, Hironobu Satoh, Takesuke Maruyama, Masahiko Yatsu, Kenji Kobayashi, Shigeyuki Itoh, Kenji Matsumoto, Iwao Aizawa
  • Patent number: 5556051
    Abstract: A tape cartridge provided with a slider member slidably mounted for sliding movement in forward and backward directions at an outer side under surface on the bottom wall of a main casing for closing and opening a pocket, a front lid pivotally connected to the main casing for covering a front face of the main casing, an upper lid for closing the open upper face of the pocket, a front edge of the upper lid being pivotally connected to an upper edge of the front lid through pins, such that when the front lid is pivoted for upward opening, the upper lid is displaced for retraction to a rear side from an open upper face of the pocket in association with the movement of the front lid.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: September 17, 1996
    Assignees: Hitachi Maxell, Ltd., Hitachi, Ltd.
    Inventors: Hikaru Mizutani, Yoshimi Maehara, Tatsumi Nishijima, Hidekazu Takeda, Kenji Ogiro, Nobuyuki Kaku