Patents by Inventor Kimito Nishikawa

Kimito Nishikawa 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: 9033512
    Abstract: A projection type display includes an illumination optical system provided with a light source including, for respective predetermined colors, LED arrays each formed of six LEDs, a light source controller that controls the LED arrays to turn on, an integration device, and a DMD, wherein the light source controller controls the LED arrays to turn on such that the shapes of light source images, which are formed on an entrance surface of the integration device by five LEDs of the respective LED arrays, coincide with each other.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: May 19, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hirokazu Taguchi, Kimito Nishikawa
  • Patent number: 8757818
    Abstract: Self-aligning mechanisms hold a condenser housing. The condenser housing is moved toward an integrator while tapered surfaces of the condenser housing of an LED light source unit are inserted along condenser lens guides of a projection unit. LED light source unit datum surfaces and datum surfaces of the projection unit abut against each other, and the tapered surfaces of the LED light source unit can no longer move toward the integrator along the condenser lens guides of the projection unit. In this state, the LED light source unit and the projection unit are coupled to each other.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 24, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoki Kawamoto, Yoshinori Kakuta, Naoki Kanno, Kimito Nishikawa
  • Publication number: 20130308065
    Abstract: A projection type display includes an illumination optical system provided with a light source including, for respective predetermined colors, LED arrays each formed of six LEDs, a light source controller that controls the LED arrays to turn on, an integration device, and a DMD, wherein the light source controller controls the LED arrays to turn on such that the shapes of light source images, which are formed on an entrance surface of the integration device by five LEDs of the respective LED arrays, coincide with each other.
    Type: Application
    Filed: January 15, 2013
    Publication date: November 21, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hirokazu TAGUCHI, Kimito NISHIKAWA
  • Patent number: 8585821
    Abstract: In one embodiment of the present invention, a monocrystal SiC epitaxial substrate is produced which includes a monocrystal SiC substrate; a buffer layer made of a first SiC epitaxial film formed on the monocrystal SiC substrate; and an active layer made of a second SiC epitaxial film formed on the buffer layer. The buffer layer is grown by heat-treating a set of the monocrystal SiC substrate, a carbon source plate, and a metal Si melt layer having a predetermined thickness and interposed between the monocrystal SiC substrate and the metal Si melt layer, so as to epitaxially grow monocrystal SiC on the monocrystal SiC substrate. The active layer is grown by epitaxially growing monocrystal SiC on the buffer layer by vapor phase growth method. This allows for production of a monocrystal SiC epitaxial substrate including a high-quality monocrystal SiC active layer being low in defects.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: November 19, 2013
    Assignees: Ecotron Co., Ltd., Research Institute of Innovative Technology for the Earth
    Inventors: Nobuhiko Nakamura, Toru Matsunami, Kimito Nishikawa
  • Patent number: 8028831
    Abstract: A package structure prevents an optical sheet from being brought into contact with a display panel and making scratches on the display panel due to motion caused during transport of a display device, thereby minimizing cost increase. A package structure for a thin display device is the structure for storing the thin display device in a package case. The thin display device includes at least one optical sheet situated in approximately parallel with its display surface, and the package case includes a storage member for holding a thin display device with the optical sheet having a surface inclined relative to a vertical direction.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: October 4, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshinori Kakuta, Shigeru Takeuchi, Hirokazu Taguchi, Naoki Kanno, Kimito Nishikawa
  • Publication number: 20110181839
    Abstract: Self-aligning mechanisms hold a condenser housing. The condenser housing is moved toward an integrator while tapered surfaces of the condenser housing of an LED light source unit are inserted along condenser lens guides of a projection unit. LED light source unit datum surfaces and datum surfaces of the projection unit abut against each other, and the tapered surfaces of the LED light source unit can no longer move toward the integrator along the condenser lens guides of the projection unit. In this state, the LED light source unit and the projection unit are coupled to each other.
    Type: Application
    Filed: December 23, 2010
    Publication date: July 28, 2011
    Inventors: Naoki Kawamoto, Yoshinori Kakuta, Naoki Kanno, Kimito Nishikawa
  • Publication number: 20100119849
    Abstract: In one embodiment of the present invention, a monocrystal SiC epitaxial substrate is produced which includes a monocrystal SiC substrate; a buffer layer made of a first SiC epitaxial film formed on the monocrystal SiC substrate; and an active layer made of a second SiC epitaxial film formed on the buffer layer. The buffer layer is grown by heat-treating a set of the monocrystal SiC substrate, a carbon source plate, and a metal Si melt layer having a predetermined thickness and interposed between the monocrystal SiC substrate and the metal Si melt layer, so as to epitaxially grow monocrystal SiC on the monocrystal SiC substrate. The active layer is grown by epitaxially growing monocrystal SiC on the buffer layer by vapor phase growth method. This allows for production of a monocrystal SiC epitaxial substrate including a high-quality monocrystal SiC active layer being low in defects.
    Type: Application
    Filed: March 11, 2008
    Publication date: May 13, 2010
    Inventors: Nobuhiko Nakamura, Toru Matsunami, Kimito Nishikawa
  • Patent number: 7654708
    Abstract: A light source device (10) includes a lamp unit (1) and a lamp cartridge (2) in which the lamp unit (1) is housed. The lamp unit (1) includes a discharge lamp (11), a reflection mirror (12) and a transparent plate (13). The reflection mirror (12) has ventilation openings (121). The lamp cartridge (2) has ventilation openings (214, 215 and 231). Fragment-passage prevention members (30, 31 and 32) are provided on the ventilation openings (214, 215 and 231). The fragment-passage prevention members (30) allow the passage of the air but prevent the passage of the fragments of the discharge lamp (11). With such an arrangement, it is possible to prevent the fragments from being scattered out of the lamp cartridge (2), even when the breakage of the discharge lamp (11) occurs.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 2, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kimito Nishikawa, Yoshinori Kakuta
  • Patent number: 7594739
    Abstract: A light source device (100) includes a discharge lamp (1), a reflection mirror (2), a transparent plate (3) and a case (7). The reflection mirror (2) has inlet openings (4a, 4b) and outlet openings (5a, 5b) formed in the vicinity of the front end of the reflection mirror (2). The case (7) has outlet openings (7a, 7b) disposed on the front side of the reflection mirror (2), and an inlet opening (7c) disposed on the rear side of the reflection mirror (2). The inlet opening (7c) of the case (7) allows an air to flow into the case (7) and to flow along a back surface (2b) of the reflection mirror (2). The inlet openings (4a, 4b) of the reflection mirror (2) allow the air to flow into the interior of the reflection mirror (2). The outlet openings (5a, 5b) of the reflection mirror (2) and the outlet openings (7a, 7b) of the case (7) allow the air to be exhausted out of the case (7).
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: September 29, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirokazu Taguchi, Yoshinori Kakuta, Kimito Nishikawa
  • Publication number: 20090065385
    Abstract: A package structure prevents an optical sheet from being brought into contact with a display panel and making scratches on the display panel due to motion caused during transport of a display device, thereby minimizing cost increase. A package structure for a thin display device is the structure for storing the thin display device in a package case. The thin display device includes at least one optical sheet situated in approximately parallel with its display surface, and the package case includes a storage member for holding a thin display device with the optical sheet having a surface inclined relative to a vertical direction.
    Type: Application
    Filed: May 9, 2008
    Publication date: March 12, 2009
    Inventors: Yoshinori Kakuta, Shigeru Takeuchi, Hirokazu Taguchi, Naoki Kanno, Kimito Nishikawa
  • Publication number: 20060209543
    Abstract: A light source device (100) includes a discharge lamp (1), a reflection mirror (2), a transparent plate (3) and a case (7). The reflection mirror (2) has inlet openings (4a, 4b) and outlet openings (5a, 5b) formed in the vicinity of the front end of the reflection mirror (2). The case (7) has outlet openings (7a, 7b) disposed on the front side of the reflection mirror (2), and an inlet opening (7c) disposed on the rear side of the reflection mirror (2). The inlet opening (7c) of the case (7) allows an air to flow into the case (7) and to flow along a back surface (2b) of the reflection mirror (2). The inlet openings (4a, 4b) of the reflection mirror (2) allow the air to flow into the interior of the reflection mirror (2). The outlet openings (5a, 5b) of the reflection mirror (2) and the outlet openings (7a, 7b) of the case (7) allow the air to be exhausted out of the case (7).
    Type: Application
    Filed: November 3, 2005
    Publication date: September 21, 2006
    Inventors: Hirokazu Taguchi, Yoshinori Kakuta, Kimito Nishikawa
  • Publication number: 20060209544
    Abstract: A light source device (10) includes a lamp unit (1) and a lamp cartridge (2) in which the lamp unit (1) is housed. The lamp unit (1) includes a discharge lamp (11), a reflection mirror (12) and a transparent plate (13). The reflection mirror (12) has ventilation openings (121). The lamp cartridge (2) has ventilation openings (214, 215 and 231). Fragment-passage prevention members (30, 31 and 32) are provided on the ventilation openings (214, 215 and 231). The fragment-passage prevention members (30) allow the passage of the air but prevent the passage of the fragments of the discharge lamp (11). With such an arrangement, it is possible to prevent the fragments from being scattered out of the lamp cartridge (2), even when the breakage of the discharge lamp (11) occurs.
    Type: Application
    Filed: December 2, 2005
    Publication date: September 21, 2006
    Inventors: Kimito Nishikawa, Yoshinori Kakuta