Patents by Inventor Kazunori Iwasaki

Kazunori Iwasaki 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: 20150260367
    Abstract: [Problem] It is difficult to efficiently control and design light distribution in the conventional lighting fixture for a vehicle. [Solution] The present invention is provided with a semiconductor-type light source (2) and a lens (3). The lens (3) is configured from a first lens part (31), a second lens part (32), and a thud lens part (33). A light-collecting pattern (SP) is funned in the first lens part (31). A first diffusing pattern (DWP) is formed in the second lens part (32). A second diffusing pattern (UWP) is formed in the third lens part (33). As a result, light distribution can be efficiently controlled and designed in the present invention.
    Type: Application
    Filed: October 10, 2013
    Publication date: September 17, 2015
    Applicant: ICHIKOH INDUSTRIES, LTD.
    Inventor: Kazunori Iwasaki
  • Publication number: 20130294102
    Abstract: A vehicle lamp fitting comprises a semiconductor light source and a lens adapted to radiate light from the semiconductor light source with both a main light distribution pattern and an overhead sign light distribution pattern. The lens includes a first surface of incidence adapted to form the main light distribution pattern, and a second surface of incidence adapted to form the overhead sign light distribution pattern. The second surface of incidence is located further to a side of the lens adjacent to the semiconductor light source than an imaginary first surface of incidence.
    Type: Application
    Filed: March 28, 2013
    Publication date: November 7, 2013
    Inventor: Kazunori Iwasaki
  • Patent number: 8475021
    Abstract: According to the present invention, additional reflection surfaces 9UL, 9UR, 9DL, 9DR are provided for reflecting light L6 from semiconductor-type light sources 5U, 5D on intermediate invalid reflection surfaces 9, 9L, 9R. As a result, the present invention is capable of: reflecting the light L6 from the semiconductor-type light sources 5U, 5D on the intermediate invalid reflection surfaces 9, 9L, 9R, by means of the additional reflection surfaces 9UL, 9UR, 9DL, 9DR; illuminating the intermediate invalid reflection surfaces 9, 9L, 9R; and lessening a dark part.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 2, 2013
    Assignee: Ichikoh Industries, Ltd.
    Inventors: Kazunori Iwasaki, Yoshihiro Sugie
  • Publication number: 20130039085
    Abstract: A vehicle lighting device is provided in such a manner that a reflector and a light source are incorporated in a lamp room made of a housing and a front lens. The light source is disposed so that an emission direction of light from a light emission surface of the light source crosses an optical axis of the front lens. The reflector is disposed on one side with respect to a surface on which the light source is to be disposed, the reflector being configured with a curved portion that is adapted to reflect the light from the light source to a side of the front lens. A coloring member is disposed so as to be adjacent to at least a part of the periphery of the light emission surface of the light source.
    Type: Application
    Filed: July 30, 2012
    Publication date: February 14, 2013
    Inventors: Kazunori Iwasaki, Kei Onoma
  • Patent number: 8287165
    Abstract: A conventional vehicle lighting device entails difficulty in smoothly dimming a part at a downside of a cutoff line of a light distribution pattern. A shade-cum additional reflector includes a cutoff line forming portion which forms an opposite lane side cutoff line, an oblique cutoff line, and a cruising lane side cutoff line, of a light distribution pattern for passing, i.e., a horizontal portion, an inclined portion, and a corner portion, of a protrusion. Of an additional reflecting surface, in proximal to at least the horizontal portion of the protrusion, a spherical convex portion is provided as a diffusion portion for diffusing and reflecting a part of the cut off reflected light onto a side of a projecting lens. As a result, a lighting device of the present invention allows for smooth dimming of a part at a downside of at least the opposite lane side cutoff line, of a light distribution pattern for passing.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: October 16, 2012
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Patent number: 8197109
    Abstract: The present invention relates to a lamp for vehicle which can obtains an ideal light distribution pattern using one light unit. The lamp for vehicle according to the present invention comprises: a first reflecting surface (11) in ellipse shape; a semiconductor light source (3) at a first focus (F11) or its vicinity of the first reflecting surface; and reflecting surfaces (12, 13, 14) in parabola shape controlling the reflected light (L2) from the first reflecting surface (11) to be reflected on the road as predetermined light distribution patterns (LP, HP, SP, WP). The second reflecting surface (12) forms light distribution pattern for high light degree (HP). The third reflecting surface 13 forms light distribution pattern for collection (SP) having the light distribution pattern for high light degree (HP).
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: June 12, 2012
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Publication number: 20110280030
    Abstract: According to the present invention, additional reflection surfaces 9UL, 9UR, 9DL, 9DR are provided for reflecting light L6 from semiconductor-type light sources 5U, 5D on intermediate invalid reflection surfaces 9, 9L, 9R. As a result, the present invention is capable of: reflecting the light L6 from the semiconductor-type light sources 5U, 5D on the intermediate invalid reflection surfaces 9, 9L, 9R, by means of the additional reflection surfaces 9UL, 9UR, 9DL, 9DR; illuminating the intermediate invalid reflection surfaces 9, 9L, 9R; and lessening a dark part.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 17, 2011
    Inventors: Kazunori IWASAKI, Yoshihiro Sugie
  • Patent number: 7972046
    Abstract: A lighting device of the present invention includes: a first reflecting surface which is an elliptical reflecting surface; a semiconductor-type light source which is disposed at a first focal point of the first reflecting surface; and parabolic reflecting surfaces for controlling reflected light from the first reflecting surface and reflecting the controlled reflected light on a road surface, as predetermined light distribution patterns. The parabolic reflecting surfaces are a plurality of reflecting surfaces which are longitudinally divided into three sections. As a result, longitudinal steps are formed among the three parabolic reflecting surfaces that are longitudinally divided. Thus, if the reflected light from the first reflecting surface is incident to the longitudinal steps, the incident light is reflected in the lateral direction, i.e., in the transverse direction at the steps. In this manner, vertical stray light can be prevented.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: July 5, 2011
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Patent number: 7959336
    Abstract: A vehicle lighting device includes: a lamp unit for concentrating light; a lamp unit for diffusion; a lamp housing and a lamp lens, partitioning a lamp room; and an optical-axis adjuster which is integrally mounted in the lamp housing in an optical-axis adjustable manner in a state in which the lamp unit for concentrating light and a lamp unit for diffusion are integrally disposed in the lamp room. The lamp unit for concentrating light radiates a light distribution pattern for diffusion. The lamp unit for diffusion radiates a light distribution pattern for diffusion. As a result, in this vehicle lighting device, one lamp unit for concentrating light is provided which satisfies a main light distribution standard and forms a light distribution pattern for concentrating light as a standard for optical axis, thereby facilitating adjustment of light distribution and allowing for precise adjustment of light distribution.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: June 14, 2011
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Patent number: 7824088
    Abstract: A planar reflection surface is arranged between a projection lens and a lens focal point of the projection lens. The lens focal point exists as a pseudo lens focal point at a symmetric position with respect to the planar reflection surface. A horizontal optical axis exists as a vertical pseudo optical axis that intersects at right angles with the horizontal optical axis.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: November 2, 2010
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Publication number: 20100177525
    Abstract: A conventional vehicle lighting device entails difficulty in smoothly dimming a part at a downside of a cutoff line of a light distribution pattern. A shade-cum additional reflector includes a cutoff line forming portion which forms an opposite lane side cutoff line, an oblique cutoff line, and a cruising lane side cutoff line, of a light distribution pattern for passing, i.e., a horizontal portion, an inclined portion, and a corner portion, of a protrusion. Of an additional reflecting surface, in proximal to at least the horizontal portion of the protrusion, a spherical convex portion is provided as a diffusion portion for diffusing and reflecting a part of the cut off reflected light onto a side of a projecting lens. As a result, a lighting device of the present invention allows for smooth dimming of a part at a downside of at least the opposite lane side cutoff line, of a light distribution pattern for passing.
    Type: Application
    Filed: December 29, 2009
    Publication date: July 15, 2010
    Inventor: Kazunori IWASAKI
  • Publication number: 20100114708
    Abstract: According to one embodiment, a system is provided, which provides moving picture data representing a road-traffic state. This system synthesizes the moving picture data with additional data such as advertisement data, generating output data. The system distributes the output data to the facilities built along the road and the vehicles running on the road.
    Type: Application
    Filed: October 28, 2009
    Publication date: May 6, 2010
    Inventors: Yoshikazu OOBA, Yasuhiro Shibata, Hideki Ueno, Kazuyoshi Fujii, Toshiro Adachi, Kazunori Iwasaki, Masaharu Doi
  • Publication number: 20090284979
    Abstract: A lighting device of the present invention includes: a first reflecting surface which is an elliptical reflecting surface; a semiconductor-type light source which is disposed at a first focal point of the first reflecting surface; and parabolic reflecting surfaces for controlling reflected light from the first reflecting surface and reflecting the controlled reflected light on a road surface, as predetermined light distribution patterns. The parabolic reflecting surfaces are a plurality of reflecting surfaces which are longitudinally divided into three sections. As a result, longitudinal steps are formed among the three parabolic reflecting surfaces that are longitudinally divided. Thus, if the reflected light from the first reflecting surface is incident to the longitudinal steps, the incident light is reflected in the lateral direction, i.e., in the transverse direction at the steps. In this manner, vertical stray light can be prevented.
    Type: Application
    Filed: March 13, 2009
    Publication date: November 19, 2009
    Inventor: Kazunori IWASAKI
  • Publication number: 20090284980
    Abstract: The present invention relates to a lamp for vehicle which can obtains an ideal light distribution pattern using one light unit. The lamp for vehicle according to the present invention comprises: a first reflecting surface (11) in ellipse shape; a semiconductor light source (3) at a first focus (F11) or its vicinity of the first reflecting surface; and reflecting surfaces (12, 13, 14) in parabola shape controlling the reflected light (L2) from the first reflecting surface (11) to be reflected on the road as predetermined light distribution patterns (LP, HP, SP, WP). The second reflecting surface (12) forms light distribution pattern for high light degree (HP). The third reflecting surface 13 forms light distribution pattern for collection (SP) having the light distribution pattern for high light degree (HP).
    Type: Application
    Filed: May 13, 2009
    Publication date: November 19, 2009
    Inventor: Kazunori IWASAKI
  • Publication number: 20090284981
    Abstract: A vehicle lighting device includes: a lamp unit for concentrating light; a lamp unit for diffusion; a lamp housing and a lamp lens, partitioning a lamp room; and an optical-axis adjuster which is integrally mounted in the lamp housing in an optical-axis adjustable manner in a state in which the lamp unit for concentrating light and a lamp unit for diffusion are integrally disposed in the lamp room. The lamp unit for concentrating light radiates a light distribution pattern for diffusion. The lamp unit for diffusion radiates a light distribution pattern for diffusion. As a result, in this vehicle lighting device, one lamp unit for concentrating light is provided which satisfies a main light distribution standard and forms a light distribution pattern for concentrating light as a standard for optical axis, thereby facilitating adjustment of light distribution and allowing for precise adjustment of light distribution.
    Type: Application
    Filed: March 13, 2009
    Publication date: November 19, 2009
    Inventor: Kazunori IWASAKI
  • Patent number: 7341366
    Abstract: A reflector is constructed by arranging two first reflecting surfaces. The two first reflecting surfaces are arranged by making first focal points F1 of the first reflecting surfaces be alienated from each other, centering on the optical axis Z within an area of an effective diameter R of a convex lens, and making second focal points F2 thereof gradually come close to each other so as to be located inside the two first focal points F1. An LED is formed of two LEDs respectively arranged near the first focal positions, with light emitting points F1 thereof facing one of the two first reflecting surfaces. The obtained light distribution pattern has double quantity of light, and does not have a non-emission part inside thereof, and the combined light of the two LEDs can solve a problem of color irregularity.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: March 11, 2008
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Publication number: 20070268717
    Abstract: A planar reflection surface is arranged between a projection lens and a lens focal point of the projection lens. The lens focal point exists as a pseudo lens focal point at a symmetric position with respect to the planar reflection surface. A horizontal optical axis exists as a vertical pseudo optical axis that intersects at right angles with the horizontal optical axis.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 22, 2007
    Inventor: Kazunori Iwasaki
  • Patent number: 7207703
    Abstract: A headlamp unit for a vehicle has two LEDs, two sub-reflectors, a main reflector and a convex lens. The sub-reflector reflects light emitted by the LED and has a reflective surface and an opening. The reflective surface is a part of an ellipsoid of revolution having a first focus position located to the LED and a second focus position located on an upper side of an optical axis. The opening is formed on an upper portion of the sub-reflector so as to substantially coincide with a horizontal plane including the optical axis. The main reflector is disposed so as to be opposed to the sub-reflectors and reflects light reflected by the sub-reflectors. The convex lens forward outputs light reflected by the main reflector to present a desired light distribution pattern.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: April 24, 2007
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Kazunori Iwasaki
  • Patent number: 7201507
    Abstract: A projector type vehicle light includes: a light source provided close to the primary focusing point of a concave mirror; and a convex lens, wherein the light source comprises a group of LEDs; each of the LED is located in each of a small concave mirror in a small reflector which has an ellipsoidal surface of rotation or a free surface as a part of the ellipsoidal surface of rotation provided on the inner surface thereof; the convex lens comprises a group of small convex lenses provided to cover the front opening of the small reflectors respectively; each of the LED is located close to the primary focusing point of a small concave mirror in a small reflector and faces at its emitter side to the small concave mirror; and a shade comes close to the secondary focusing point of the small concave mirror and assembled together with the small convex lens and the LED, whereby each of the small projector type lamps in the array is completed.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: April 10, 2007
    Assignee: Ichikoh Industries, Ltd.
    Inventors: Yukari Takeda, Kazunori Iwasaki, Yasufumi Suzuki
  • Patent number: 7178958
    Abstract: A vehicle light includes a light source, a main-reflector, and a sub-reflector. The sub-reflector is arranged around the light source. The main-reflector is arranged around the light source and the sub-reflector. The main-reflector includes a reflection surface that reflects light from the light source in a predetermined direction, avoiding the sub-reflector.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: February 20, 2007
    Assignee: Ichikoh Industries, Ltd.
    Inventors: Kazuhiro Matsumoto, Masafumi Kobayashi, Kazunori Iwasaki