Patents by Inventor Akihiro Misawa

Akihiro Misawa 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: 20080291685
    Abstract: A vehicle-purpose lighting tool is featured by comprising: a light-conducting member having a front light-emitting plane, a rear plane having a concave/convex shape, and a side edge plane; and a light source arranged at a position opposite to the side edge plane; in which within external light which is entered via the front light-emitting plane into the light-conducting member, a portion of the external light which is directly traveled to the side edge plane is totally reflected on a boundary plane of the side edge plane portion; a plurality of reflecting portions are formed on the rear plane and are coupled to each other via a coupling portion in such a direction that the reflecting portions are separated apart from the side edge plane side; and distances between the plurality of reflecting portions and the front light-emitting plane are changed in a discontinuous manner along the separating direction.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Tetsuya Arakawa, Tatsuya Oba
  • Publication number: 20080259620
    Abstract: A light guide unit which includes a front light emitting surface, a rear surface to which a light reflecting treatment is applied and a side end face which constitutes a light introducing plane and which is formed solid of a light transmissive material as a whole is divided by a vertical slit which reaches the rear reflecting surface.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 23, 2008
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Tatsuya Oba, Akihiro Misawa, Tetsuya Arakawa
  • Publication number: 20080247177
    Abstract: A luminescent device includes: a light source; a housing for accommodating the light source, a heat discharging member including a heat transfer portion and a heat dissipation portion and passed through the housing, the heat transfer portion being mounted on the light source and the heat dissipation portion being located outside the housing; a seal portion for sealing a gap between the heat discharging member and the housing; and optical axis adjusting device for adjusting an optical axis of the light source, wherein the heat transfer portion or the seal portion is deformed so as to follow an angular change of the optical axis of the light source by the optical axis adjusting device.
    Type: Application
    Filed: February 8, 2008
    Publication date: October 9, 2008
    Applicant: TOYODA GOSEI CO., LTD
    Inventors: Yoshiharu Tanaka, Takao Adachi, Akihiro Misawa, Shigeru Yabuya, Minoru Shibata
  • Publication number: 20080180967
    Abstract: A lighting device for a vehicle includes: a light source; a light guide member that has a light-introducing part provided in a back surface side through which the light of the light source is introduced and finally emits the light from a front surface side; a part near the light-introducing part being thicker than an edge part of the light guide member, a plurality of reflecting parts and connecting parts being alternately formed continuously toward a direction separate from the light-introducing part in the back surface side, the reflecting parts respectively reflecting on interfaces the introduced light reaching there to form the light in the direction of the front surface of the light guide member; and a housing that is connected to a position between the edge part of the back surface of the light guide member and the light-introducing part and attached to the back surface side of the light guide member to house the light source.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 31, 2008
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Chiharu Totani, Akihiro Misawa, Tatsuya Oba, Tetsuya Arakawa
  • Publication number: 20080165548
    Abstract: There is provided a vehicle lighting assembly, which includes a plurality of light sources, and a light guiding body having a light incident portion and a reflecting portion corresponding to the light sources on a back surface side, for emitting a light generated when a light being incident from the light incident portion is reflected by the reflecting portion from a front portion, wherein the light guiding body is divided into a plurality of blocks whose emergent light modes are different, and a reflection and diffusion area is formed on a boundary portion between two adjacent blocks.
    Type: Application
    Filed: December 21, 2007
    Publication date: July 10, 2008
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Chiharu Totani, Tatsuya Oba
  • Publication number: 20080094848
    Abstract: In an LED lamp device including a surface mount device type of LED lamp, an LED lighting circuit protecting part, a resistive element, a circuit part, and a case part, the circuit part has a metal plate which is embedded in the case part in a state where the metal plate is partially exposed, the LED lamp is mounted on the exposed portion on a front side of the metal plate, and the resistive element is mounted on the exposed portion on a rear side of the metal plate.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 24, 2008
    Applicant: TOYODA GOSEI CO., LTD
    Inventors: Satoshi Inagaki, Hiroshi Ito, Akihiro Misawa, Yukiko Marui
  • Publication number: 20080066355
    Abstract: The objective of the present invention is to provide a display device that presents great decorative effects. For a display device that provides a luminous display consisting of characters, numbers, symbols or figures, or arbitrary combinations of them, having a desired form, a half mirror layer is formed above a mirror surface, through a translucent layer, and a desired form is luminously displayed at a location between the mirror surface and the half mirror layer and at a distance from the mirror surface.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Kazuo Takeda, Tatsuya Oba
  • Patent number: 7334923
    Abstract: A vehicle rearview mirror including a housing, a mirror, an LED that has a light emitting element and plane-radiates light in a direction nearly vertical to the optical axis of the light emitting element, and a light-guiding member in which at least the one LED is incorporated at a predetermined position. The light-guiding member has a light reflection surface that reflects light to be plane-radiated from the LED and that allows the reflected light to be radiated in a desired direction, and a light radiation surface that allows direct light to be directly emitted from the LED and the reflected light to be externally radiated by the light radiation surface.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: February 26, 2008
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshiharu Tanaka, Akihiro Misawa, Toshinori Takahashi
  • 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: 20070195540
    Abstract: A vehicle lighting system having: a light guiding member having a front face as a light emitting surface, a rear face having a plurality of reflecting portions inclined to the front face, and a side face; and a light source disposed opposite to the side face. An angle ? defined between the front face and the side face is designed such that, of external lights to enter into the light guiding member, a light to travel directly to the side face can be totally reflected on an interface of the side face.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 23, 2007
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Akihiro Misawa, Yoshiharu Tanaka, Tatsuya Oba
  • Patent number: 7249869
    Abstract: A light emitting device includes a mark body, a substrate arranged in back of the mark body, an LED mounted on an opposite surface of the substrate to the mark body, and a light guide arranged on a closer side of the substrate to the LED and having an upper surface serving as a light introducing surface for introducing LED-based light, a side surface serving as a light emitting surface and a backside subjected to a light diffuse reflection process to cause diffuse reflection by the backside. Incidentally, there can be provided a light emitting device that includes a light guide arranged on a closer side of the substrate to the LED and having an upper surface serving as a light introducing surface for introducing LED-based light, a side surface serving as a light emitting surface and a backside having a plurality of protrusions in a rib form.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: July 31, 2007
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Toshinori Takahashi, Akihiro Misawa, Yoshiharu Tanaka
  • Patent number: 7229197
    Abstract: A vehicle side mirror apparatus for looking backward circumstances of a vehicle has: a housing that is of a transparent or semitransparent material with a cross section having a predetermined thickness, the housing having a light entering end into which light enters, and a light radiating end that faces the back of the vehicle; and an LED lamp that is disposed in the vicinity of the light entering end. Light emitted from the LED lamp enters into the light entering end of the housing, passing through within the cross section, being radiated to the back of the vehicle from the light radiating end of the housing.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: June 12, 2007
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshiharu Tanaka, Akihiro Misawa
  • Patent number: 7163322
    Abstract: In an illumination device for license plate which illuminates the license plate from the front side thereof, at least one light source consist of a white LED is arranged at a position upward or obliquely upward of the license plate in such a manner that optical axes thereof traverse with a lower range than the center of the license plate, and a reflector is arranged at a position obliquely downward seen from an observer's side of the light source, receiving a light directing to the observer's side from a portion of a light emitted from the light source, and converting the light into a light irradiating the center or the lower part of the license plate. Further, a garnish for accommodating the light source and having a light transmitting part can be provided to the illumination device.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: January 16, 2007
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yasumasa Tatewaki, Toshinori Takahashi, Yoshiharu Tanaka, Akihiro Misawa, Kazutoshi Ikeda, Takao Adachi, Katsumi Esaka, Tatsuya Oba
  • Publication number: 20060119250
    Abstract: An LED light comprising a light-emitting device provided to power supply means, encapsulating means for encapsulating the light-emitting device with a light-transmitting material, a reflective surface for reflecting the light emitted from the light-emitting device to a direction perpendicular to the center axis of the light-emitting device or at a large angle to the center axis, opposed to the light-emitting surface of the light-emitting device, a light-emitting diode having a side directing surface for directing sideways the light reflected from the reflective surface to a direction perpendicular to the center axis of the light-emitting device or at a large angle to the center axis, and a reflecting mirror disposed around the light-emitting diode.
    Type: Application
    Filed: November 15, 2002
    Publication date: June 8, 2006
    Inventors: Yoshinobu Suehiro, Akihiro Misawa, Toshinori Takahashi, Hisatoshi Ota, Koichi Ota, Junko Okano
  • Publication number: 20060104075
    Abstract: The exterior handle configuration of the present invention includes a panel having a recess portion and a handle that covers the upper periphery of the recess portion. An inside surface of the handle is finished with a mirror treatment that reflects and diffuses light. At least one light source fixed at the panel emits light that is directed between the recess portion and the handle. A reflecting surface reflects light emitted from the light source to the inside surface of the handle. The handle configuration of the present invention improves the visibility of the exterior handle during nighttime in a visually pleasing manner.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 18, 2006
    Applicant: TOYODA GOSEI Co., Ltd.
    Inventor: Akihiro Misawa
  • Patent number: 7029156
    Abstract: An opposed reflecting mirror is provided so as to face a light source. The opposed reflecting mirror is configured to reflect light rays, emitted from the light source, so as to allow the reflected light rays to advance in a predetermined direction. A light guide body having a plurality of reflecting surfaces is provided to permit the incidence of light rays supplied from the opposed reflecting mirror and to reflect the incident light rays. The plurality of reflecting surfaces are located at different positions in a sliding split manner along the direction of light rays supplied from the opposed reflecting mirror. By virtue of this construction, a light emitting apparatus can be provided in which, while making the best use of a feature of LED, i.e., a small thickness, impressive illumination of an elongated shape by one light emitting device and high external emission efficiency can be realized.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: April 18, 2006
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshinobu Suehiro, Akihiro Misawa, Osamu Yamanaka, Toshinori Takahashi, Hisatoshi Ota
  • Publication number: 20060023468
    Abstract: The invention provides a light emitting device comprising a mark body, a substrate arranged in back of the mark body, an LED mounted on an opposite surface of the substrate to the mark body, and a light guide arranged on a closer side of the substrate to the LED and having an upper surface serving as a light introducing surface for introducing LED-based light, a side surface serving as a light emitting surface and a backside subjected to a light diffuse reflection process to cause diffuse reflection by the backside. Incidentally, there can be provided a light emitting device comprising a light guide arranged on a closer side of the substrate to the LED and having an upper surface serving as a light introducing surface for introducing LED-based light, a side surface serving as a light emitting surface and a backside having a plurality of protrusions in a rib form.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Toshinori Takahashi, Akihiro Misawa, Yoshiharu Tanaka
  • 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: 6908220
    Abstract: A vehicle rear lamp including first light-emitting device emitting a red light, and second light-emitting device emitting a light different from the red light, preferably blue or green, wherein the first and second light-emitting devices are provided in a region for stop lamp indication.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: June 21, 2005
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Akihiro Misawa, Hiroshi Ito, Osamu Yamanaka, Masanori Nagata
  • Publication number: 20050117236
    Abstract: A vehicle side mirror apparatus for looking backward circumstances of a vehicle has: a housing that is of a transparent or semitransparent material with a cross section having a predetermined thickness, the housing having a light entering end into which light enters, and a light radiating end that faces the back of the vehicle; and an LED lamp that is disposed in the vicinity of the light entering end. Light emitted from the LED lamp enters into the light entering end of the housing, passing through within the cross section, being radiated to the back of the vehicle from the light radiating end of the housing.
    Type: Application
    Filed: October 6, 2004
    Publication date: June 2, 2005
    Applicant: Toyoda Gosei Co., Ltd.
    Inventors: Yoshiharu Tanaka, Akihiro Misawa