Patents by Inventor Toshiaki Tsuda

Toshiaki Tsuda 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: 10317031
    Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light, a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A light transmitting portion is formed in a portion, at which an extension path obtaining by extending an optical path of the laser light before contacting the phosphor is intersected with the reflector, of the reflector. A light confinement part is formed above the light transmitting portion.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 11, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Naoki Tatara, Satoshi Yamamura, Naoki Uchida, Toshiaki Tsuda
  • Publication number: 20190110345
    Abstract: A load driving apparatus receives an input voltage from a power supply, and supplies electric power to a load under processor control. The processor outputs first and second signals via first and second pins in a conjunction such that they are negated when the load is instructed to suspend operation. An output circuit supplies electric power to the load. A protection switch is provided on a driving path that extends from the power supply to the load and returns to the power supply. When the first signal is asserted (negated), a control circuit sets the output circuit to an operation state (suspension state). The control circuit turns on the protection switch on assertion of the second signal, and turns it off on negation of this signal.
    Type: Application
    Filed: December 2, 2018
    Publication date: April 11, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Tomoyuki ICHIKAWA, Toshiaki TSUDA
  • Patent number: 10247381
    Abstract: An automotive lamp includes: a light source; a light emitting member that receives light from the light source and emits light; and a support member that supports the light emitting member. The support member includes a translucent light emitting member accommodating unit. The light emitting member accommodating unit includes a recess in which the light emitting member is accommodated. A light incidence surface and side surfaces of the light emitting member are in contact with the light emitting member accommodating unit in a state in which the light emitting member is accommodated in the recess.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 2, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshiaki Tsuda, Tomoyuki Ichikawa
  • Patent number: 10215355
    Abstract: An automotive lamp includes: a light source; a light emitting member that receives light from the light source and emits light; and a support member that supports the light emitting member. The support member includes a translucent light emitting member accommodating unit. The light emitting member accommodating unit includes a recess in which the light emitting member is accommodated. A light incidence surface and side surfaces of the light emitting member are in contact with the light emitting member accommodating unit in a state in which the light emitting member is accommodated in the recess.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: February 26, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshiaki Tsuda, Tomoyuki Ichikawa
  • Publication number: 20190051185
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Application
    Filed: October 16, 2018
    Publication date: February 14, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Yuichi SHIBATA, Takayuki YAGI, Misako NAKAZAWA, Toshiaki TSUDA, Hidetada TANAKA, Satoshi YAMAMURA
  • Patent number: 10184652
    Abstract: A light source module includes a light source with a light emitting device and a terminal electrically connected to the light emitting device; a wiring board to electrically connect another end side of the terminal to an external power supply terminal; a thermal diffusion member between the light source and the wiring board; and a temperature detector mounted on the wiring board to detect a temperature of the light source. The thermal diffusion member has a recessed portion facing the wiring board, the temperature detector is accommodated in the recessed portion.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: January 22, 2019
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Tomoyuki Ichikawa, Toshiaki Tsuda
  • Patent number: 10134283
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: November 20, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi Masuda, Michihiko Hayakawa, Yuichi Shibata, Takayuki Yagi, Misako Nakazawa, Toshiaki Tsuda, Hidetada Tanaka, Satoshi Yamamura
  • Patent number: 10072807
    Abstract: Provided is a vehicular headlamp including: an excitation light source; a scanning mechanism configured to scan light emitted by the excitation light source toward a predetermined direction; a projection lens; and a phosphor provided between the scanning mechanism and the projection lens and configured to transmit light scanned by the scanning mechanism toward the projection lens. The phosphor is formed as a curved body that is curved in a direction opposite to a curved image plane of the projection lens.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 11, 2018
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Takayuki Yagi, Noriko Sato, Toshiaki Tsuda
  • Patent number: 9976721
    Abstract: A light source module includes a light source which comprises a light emitting element, a stem configured to support the light emitting element, and a terminal having one end electrically connected to the light emitting element, a wiring board to which the other end of the terminal is electrically connected and which is configured to electrically connect the terminal to an external power supply terminal, and a thermal diffusion member which is disposed between the stem and the wiring board and is thermally connected to the light emitting element.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 22, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Toshiaki Tsuda
  • Patent number: 9970619
    Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light; a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A scattered light forming part is formed on a surface of the reflector, which is a surface at which a path obtained by extending an optical path of the laser light before the laser light hits the phosphor is intersected with the reflector.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: May 15, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Akihiro Nomura, Tsukasa Tokida, Yuichi Shibata, Yukihiro Onoda, Takayuki Yagi, Satoshi Yamamura, Toshiaki Tsuda
  • Patent number: 9933129
    Abstract: A light source module includes a light source which comprises a light emitting element, a stem configured to support the light emitting element, and a terminal having one end electrically connected to the light emitting element, a wiring board to which the other end of the terminal is electrically connected and which is configured to electrically connect the terminal to an external power supply terminal, and a thermal diffusion member which is disposed between the stem and the wiring board and is thermally connected to the light emitting element.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: April 3, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Toshiaki Tsuda
  • Publication number: 20180045393
    Abstract: Provided is a vehicular headlamp including: an excitation light source; a scanning mechanism configured to scan light emitted by the excitation light source toward a predetermined direction; a projection lens; and a phosphor provided between the scanning mechanism and the projection lens and configured to transmit light scanned by the scanning mechanism toward the projection lens. The phosphor is formed as a curved body that is curved in a direction opposite to a curved image plane of the projection lens.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 15, 2018
    Inventors: Takayuki Yagi, Noriko Sato, Toshiaki Tsuda
  • Publication number: 20170337821
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Application
    Filed: September 7, 2015
    Publication date: November 23, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Yuichi SHIBATA, Takayuki YAGI, Misako NAKAZAWA, Toshiaki TSUDA, Hidetada TANAKA, Satoshi YAMAMURA
  • Patent number: 9616750
    Abstract: A vehicle display system displays information on a road surface. The vehicle display system includes an other-entity detector, an intersection detector, and a display device. The other-entity detector detects whether or not another entity approaches a vehicle mounted with the vehicle display system. The intersection detector detects whether or not the vehicle approaches an intersection. When the other-entity detector detects that said another entity approaches the vehicle or when the intersection detector detects that the vehicle approaches the intersection, the display device displays a predetermined shape in a predetermined region of a road surface ahead of the vehicle while moving the predetermined shape.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 11, 2017
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Yuichi Shibata, Takayuki Yagi, Hidetada Tanaka, Misako Nakazawa, Michihiko Hayakawa, Takeshi Masuda, Toshiaki Tsuda
  • Publication number: 20170067609
    Abstract: A vehicle lamp (1) includes a laser light source (7) that is able to emit laser light (B2) and emits laser light (B2) generated by the laser light source (7) forward from an emission end (32a). The vehicle lamp (1) includes a light-shielding member (34) that shields the emission end (32a) from light from above to at least a horizontal position in front of the emission end (32a).
    Type: Application
    Filed: February 23, 2015
    Publication date: March 9, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Tomoyuki ICHIKAWA, Toshiaki TSUDA, Noriko SATO, Masanobu MIZUNO, Osamu KUBOYAMA, Takeshi MASUDA
  • Publication number: 20170030544
    Abstract: A vehicle lamp includes a light source that shines a laser beam and a laser scanning unit that has a single or plurality of acousto-optic devices, and the laser scanning unit can control an angle at which a laser beam that is incident on the acousto-optic devices is deflected. The vehicle lamp is strong enough to deal with vibrations and withstands the application to a motor vehicle.
    Type: Application
    Filed: April 7, 2015
    Publication date: February 2, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshiaki TSUDA, Takeshi MASUDA
  • Publication number: 20170016586
    Abstract: A vehicle lamp includes a first light source, a second light source, and a third light source that emit laser beams; a first lens, a second lens, and a third lens that collimate the respective laser beams emitted by the first light source, the second light source, and the third light source; a converging reflector having a reflective surface whose basis is a paraboloid of revolution, and that reflects the respective laser beams transmitted through the first lens, the second lens, and the third lens; and a phosphor that, receiving laser light reflected by the converging reflector, emits light.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Toshiaki TSUDA, Noriko SATO, Misako NAKAZAWA
  • Patent number: 9500338
    Abstract: A vehicle lamp includes a plurality of lamp units each comprising a light source and a projection lens configured to emit light emitted from the light source to the front. The plurality of lamp units form a light distribution pattern by combining irradiation regions formed by each lamp unit. At least one of the lamp units has a lens driving mechanism configured to tilt the projection lens in a vertical direction.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 22, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Toshiaki Tsuda
  • Publication number: 20160305626
    Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light, a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A light transmitting portion is formed in a portion, at which an extension path obtaining by extending an optical path of the laser light before contacting the phosphor is intersected with the reflector, of the reflector. A light confinement part is formed above the light transmitting portion.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Naoki Tatara, Satoshi Yamamura, Naoki Uchida, Toshiaki Tsuda
  • Publication number: 20160290620
    Abstract: A light source module includes: a light source including a light emitting device and a terminal of which one end side is electrically connected to the light emitting device; a wiring board configured to electrically connect another end side of the terminal to an external power supply terminal; a thermal diffusion member disposed between the light source and the wiring board and connected to the light emitting device in a heat-transferable manner; and a temperature detector mounted on the wiring board to detect a temperature of the light source. The thermal diffusion member has a recessed portion on a surface of the thermal diffusion member which faces the wiring board side, and the temperature detector is accommodated in the recessed portion.
    Type: Application
    Filed: March 17, 2016
    Publication date: October 6, 2016
    Inventors: Tomoyuki Ichikawa, Toshiaki Tsuda