Patents by Inventor Mitsuhiro Nawashiro

Mitsuhiro Nawashiro 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: 8008674
    Abstract: A light emitting device has a mount with a protruding portion that has an element mounting surface on which a light emitting element is mounted and a first lead and a second lead are exposed. The light emitting element has a first electrode and a second electrode that are electrically connected to the first lead and the second lead, respectively.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: August 30, 2011
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Mitsuhiro Nawashiro, Hiroyuki Tajima, Hisao Yamaguchi
  • Patent number: 7556404
    Abstract: A light source device includes a light emitting diode (LED) device, a lens and a light diffusing layer. The LED device includes an LED chip, which emits light, and a fluorescent, which converts a part of the light from the LED chip. The lens is located on a side of a light emitting face of the LED device. The light diffusing layer is located between the LED device and the lens. An air layer exists between the light diffusing layer and the LED device or between the light diffusing layer and the lens.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: July 7, 2009
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Mitsuhiro Nawashiro, Satoshi Inagaki
  • Patent number: 7537364
    Abstract: A door handle portion illumination system for illuminating a door handle portion including a door handle, and a concave portion that is formed on a vehicle body in a position which lies at the rear of the door handle, the door handle portion illumination system including a light transmitting element that is incorporated in the door handle and which includes a luminous surface including, in turn, an area which is exposed on a front side of the door handle and an area which faces an edge portion of the concave portion, and a light source which emits a light that is introduced into the light transmitting element.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: May 26, 2009
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Akihiro Misawa, Mitsuhiro Nawashiro
  • Patent number: 7531845
    Abstract: A semiconductor light emitting device includes: a body having a recess, a step being provided on a side wall of the recess; a semiconductor light emitting element mounted in the recess; and a resin layer. The resin layer covers at least a portion of an inner surface of the recess of the body. The resin layer has a higher reflectivity than the inner surface of the recess of the body.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: May 12, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toyoda Gosei Co., Ltd
    Inventors: Hiroaki Oshio, Iwao Matsumoto, Mitsuhiro Nawashiro
  • Patent number: 7462994
    Abstract: An LED illumination apparatus comprising a radiative substrate, at least one LED provided on the radiative substrate and a constant current circuit connected to the LED is provided.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: December 9, 2008
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Satoshi Inagaki, Mitsuhiro Nawashiro
  • Patent number: 7438452
    Abstract: An illumination device includes a first light source. The first light source is fixed on an interior ceiling located between a driver seat and a passenger seat in a vehicle. The first light source illuminates an interior compartment of the vehicle. The illumination device also includes a second light source that illuminates around the driver or the passenger. The illumination device further includes a switch that electrically controls the second light source. The switch includes a peripheral part that is located adjacent to the first light source, and the peripheral part emits light from the first light source. The illumination device indicates a location of the switch in dark conditions in the interior compartment of the vehicle in a visually pleasing manner. The illumination device has a simple structure and is simple to install.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 21, 2008
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Mitsuhiro Nawashiro
  • Publication number: 20080054287
    Abstract: A semiconductor light emitting device includes: a body having a recess, a step being provided on a side wall of the recess; a semiconductor light emitting element mounted in the recess; and a resin layer. The resin layer covers at least a portion of an inner surface of the recess of the body. The resin layer has a higher reflectivity than the inner surface of the recess of the body.
    Type: Application
    Filed: June 19, 2007
    Publication date: March 6, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOYODA GOSEI CO., LTD
    Inventors: Hiroaki Oshio, Iwao Matsumoto, Mitsuhiro Nawashiro
  • Patent number: 7329904
    Abstract: An LED lamp device includes a light emitting element that emits light in a blue-based or violet-based color, an LED having a fluorescent material that emits fluorescent light in a yellow to yellow-green-based color in response to light received from the light emitting element, a lens having a light incident surface to which light emitted from the LED comes in and a convex lens part that radiates incident light, and a light shielding member provided on the light radiation side of the LED, having an opening, and made of a non-transmitting material to light from the LED. The member externally radiates light from the LED radiated through the lens from the opening and cuts the peripheral part of the light from the LED. Therefore, illumination light with no color irregularity in yellow observed around the illumination region can be provided, and a lamp device suitable for illumination can be provided.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: February 12, 2008
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Mitsuhiro Nawashiro, Satoshi Inagaki
  • Publication number: 20070284597
    Abstract: A light emitting device has a mount with a protruding portion that has an element mounting surface on which a light emitting element is mounted and a first lead and a second lead are exposed. The light emitting element has a first electrode and a second electrode that are electrically connected to the first lead and the second lead, respectively.
    Type: Application
    Filed: May 18, 2007
    Publication date: December 13, 2007
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Mitsuhiro Nawashiro, Hiroyuki Tajima, Hisao Yamaguchi
  • Publication number: 20070206388
    Abstract: A door handle portion illumination system for illuminating a door handle portion including a door handle, and a concave portion that is formed on a vehicle body in a position which lies at the rear of the door handle, the door handle portion illumination system including a light transmitting element that is incorporated in the door handle and which includes a luminous surface including, in turn, an area which is exposed on a front side of the door handle and an area which faces an edge portion of the concave portion, and a light source which emits a light that is introduced into the light transmitting element.
    Type: Application
    Filed: February 23, 2007
    Publication date: September 6, 2007
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Mitsuhiro Nawashiro
  • Publication number: 20070019409
    Abstract: A light source device includes a light emitting diode (LED) device, a lens and a light diffusing layer. The LED device includes an LED chip, which emits light, and a fluorescent, which converts a part of the light from the LED chip. The lens is located on a side of a light emitting face of the LED device. The light diffusing layer is located between the LED device and the lens. An air layer exists between the light diffusing layer and the LED device or between the light diffusing layer and the lens.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 25, 2007
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Mitsuhiro Nawashiro, Satoshi Inagaki
  • Publication number: 20060187659
    Abstract: An illumination device includes a first light source. The first light source is fixed on an interior ceiling located between a driver seat and a passenger seat in a vehicle. The first light source illuminates an interior compartment of the vehicle. The illumination device also includes a second light source that illuminates around the driver or the passenger. The illumination device further includes a switch that electrically controls the second light source. The switch includes a peripheral part that is located adjacent to the first light source, and the peripheral part emits light from the first light source. The illumination device indicates a location of the switch in dark conditions in the interior compartment of the vehicle in a visually pleasing manner. The illumination device has a simple structure and is simple to install.
    Type: Application
    Filed: February 23, 2006
    Publication date: August 24, 2006
    Applicant: TOYODA GOSEI Co., Ltd.
    Inventor: Mitsuhiro Nawashiro
  • Patent number: 7078738
    Abstract: A light-emitting device has two light-emitting element. In a substrate portion of the light-emitting device having a first internal positive electrode connected to the positive electrode side of a first light-emitting element, a first internal negative electrode connected to the negative electrode side of the first light-emitting element, a second internal positive electrode connected to the positive electrode side of a second light-emitting element, and a second internal negative electrode connected to the negative electrode side of the second light-emitting element, these electrodes are provided so that homopolar electrodes are disposed diagonally.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: July 18, 2006
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Mitsuhiro Nawashiro, Satoshi Inagaki, Yasumasa Tatewaki, Takahide Oshio, Hisao Yamaguchi
  • Patent number: 7029147
    Abstract: A light emitting apparatus has: a plurality of surface mount device (SMD) type light emitting diode elements; a circuit board on which the plurality of SMD type light emitting diode elements are mounted; and a plurality of convex lenses each of which covers the light extraction side of corresponding one of the plurality of SMD type light emitting diode elements. The lens optical axis of at least one of the plurality of convex lenses does not coincide with an axis that passes through the center of corresponding one of the plurality of SMD type light emitting diode elements and is perpendicular to the circuit board.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: April 18, 2006
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Mitsuhiro Nawashiro
  • Publication number: 20060076905
    Abstract: An LED illumination apparatus comprising a radiative substrate, at least one LED provided on the radiative substrate and a constant current circuit connected to the LED is provided.
    Type: Application
    Filed: September 29, 2005
    Publication date: April 13, 2006
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Satoshi Inagaki, Mitsuhiro Nawashiro
  • Patent number: 6990922
    Abstract: This invention is to offer an indication system and method of a meter part having excellent visibility and designing property. Alight is irradiated from the first light source toward the indicating panel from the side of the indicating face for making the background part of the indicating panel luminous with a complementary color to a color indicating the indicator part of pointers, graduations, numerals and others.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: January 31, 2006
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Tadaoki Ichikawa, Toshinori Takahashi, Mitsuhiro Nawashiro, Norihito Kino, Hiroshi Ito
  • Patent number: 6971758
    Abstract: In the illumination device of the invention, an LED is oppose to a side surface of a flat light guide member. A light shield surface for shielding light from the LED and emitted toward the backside of the guide member in vicinity of the LED on the backside of the light guide member.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: December 6, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Shuji Inui, Moriyuki Hashimoto, Osamu Yamanaka, Yoshio Sano, Mitsuhiro Nawashiro, Hiroshi Ito, Akihiro Misawa, Takayuki Kamiya
  • Patent number: 6945678
    Abstract: The invention is directed to provide a vehicle interior illumination device which has a high illuminating effect and which can be used for various kinds of illumination in a vehicle. The illumination device disposed in a roof portion of the interior of a vehicle, including: a first light-emitting section having a first light source constituted by a plurality of first LEDs disposed at substantially regular spaces; and a second light-emitting section having a second light source constituted by a second LED, and a second outer lens with which a light emission side of the second light source is covered and by which light emitted from said second light source is converged and radiated out.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: September 20, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hiroshi Sugihara, Hiroshi Ito, Takayuki Kamiya, Yoshio Sano, Mitsuhiro Nawashiro, Kazushi Noda
  • Patent number: D578082
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: October 7, 2008
    Assignees: Toyoda Gosei Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Shota Shimonishi, Mitsuhiro Nawashiro, Tetsuro Komatsu, Hiroaki Oshio
  • Patent number: D578083
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: October 7, 2008
    Assignees: Toyoda Gosei Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Shota Shimonishi, Mitsuhiro Nawashiro, Tetsuro Komatsu, Hiroaki Oshio