Patents by Inventor Akitaka Samejima

Akitaka Samejima 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: 10668811
    Abstract: A power supply system (120) according to an embodiment of the present invention includes a first power supply device (121), a second power supply device (122), and an addition circuit (123). The first power supply device (121) includes a first driving circuit that outputs a first direct current from a first power supply input and a first control circuit that controls the first driving circuit. The second power supply device (122) includes a second driving circuit that outputs a second direct current from a second power supply input and a second control circuit that monitors the first driving circuit and controls the second driving circuit. The addition circuit (123) is connected to an output terminal of each of the first and second power supply devices (121, 122) and outputs a third direct current that is a value obtained by adding the first and second direct currents to a load device (on-board illumination device (110)).
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: June 2, 2020
    Assignee: KOITO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akitaka Samejima, Takayuki Izumi, Jun Matsunaga, Kazuo Maruyama
  • Publication number: 20190031029
    Abstract: A power supply system (120) according to an embodiment of the present invention includes a first power supply device (121), a second power supply device (122), and an addition circuit (123). The first power supply device (121) includes a first driving circuit that outputs a first direct current from a first power supply input and a first control circuit that controls the first driving circuit. The second power supply device (122) includes a second driving circuit that outputs a second direct current from a second power supply input and a second control circuit that monitors the first driving circuit and controls the second driving circuit. The addition circuit (123) is connected to an output terminal of each of the first and second power supply devices (121, 122) and outputs a third direct current that is a value obtained by adding the first and second direct currents to a load device (on-board illumination device (110)).
    Type: Application
    Filed: January 30, 2017
    Publication date: January 31, 2019
    Inventors: AKITAKA SAMEJIMA, TAKAYUKI IZUMI, JUN MATSUNAGA, KAZUO MARUYAMA
  • Patent number: 8855009
    Abstract: There are provided a method and a device for providing communication data that provide communication data for identifying a device on a mobile object that communicates through an LAN in accordance with a predetermined communication protocol to the device on a mobile object installed on a mobile object without a communication data provision problem caused due to a manual operation, a data gathering method and a system for a mobile object using the method and the device, the device on a mobile object for the system, a network system for organizing vehicles, and an on-vehicle device for the system.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 7, 2014
    Assignee: Koito Electric Industries, Ltd.
    Inventors: Hiroyuki Niiyama, Kenichiro Komatsu, Kazuki Furusawa, Akitaka Samejima
  • Publication number: 20100302974
    Abstract: There are provided a method and a device for providing communication data that provide communication data for identifying a device on a mobile object that communicates through an LAN in accordance with a predetermined communication protocol to the device on a mobile object installed on a mobile object without a communication data provision problem caused due to a manual operation, a data gathering method and a system for a mobile object using the method and the device, the device on a mobile object for the system, a network system for organizing vehicles, and an on-vehicle device for the system.
    Type: Application
    Filed: May 20, 2010
    Publication date: December 2, 2010
    Applicant: KOITO INDUSTRIES, LTD.
    Inventors: Hiroyuki NIIYAMA, Kenichiro KOMATSU, Kazuki FURUSAWA, Akitaka SAMEJIMA
  • Patent number: 6559760
    Abstract: A platform monitoring system includes a camera for capturing a situation on a platform. An image captured by the camera is transmitted from a light emitter on the ground side as an optical signal and also transmitted from a transmission antenna on the ground side as a radio wave signal. These signals are received by an optical receiver and a reception antenna, respectively, mounted in a leading end portion of a vehicle. When the vehicle is positioned in a region around a stopping position, an image carried by the optical signal is selectively displayed on a monitor disposed near an operator's seat in the vehicle. When the vehicle is positioned out of the region around the stopping position, an image carried by the radio wave signal is selectively displayed on the monitor near the operator's seat in the vehicle.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: May 6, 2003
    Assignee: Koito Industries, Ltd,
    Inventors: Akitaka Samejima, Takayuki Araki
  • Publication number: 20010050709
    Abstract: A platform monitoring system includes a camera for capturing a situation on a platform. An image captured by the camera is transmitted from a light emitter on the ground side as an optical signal and also transmitted from a transmission antenna on the ground side as a radio wave signal. These signals are received by an optical receiver and a reception antenna, respectively, mounted in a leading end portion of a vehicle. When the vehicle is positioned in a region around a stopping position, an image carried by the optical signal is selectively displayed on a monitor disposed near an operator's seat in the vehicle. When the vehicle is positioned out of the region around the stopping position, an image carried by the radio wave signal is selectively displayed on the monitor near the operator's seat in the vehicle.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 13, 2001
    Applicant: Koito Industries Ltd.
    Inventors: Akitaka Samejima, Takayuki Araki