Patents by Inventor Yasuyuki Fujihara

Yasuyuki Fujihara 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: 20240298931
    Abstract: A blood glucose measurement device capable of measuring a blood glucose in the blood while suppressing the influence of light absorption by water in a living body. The blood glucose measurement device includes a light source that irradiates light having a wavelength selected from a wavelength band of 800 to 950 nm, and a sensor that receives light transmitted, reflected, or scattered in a living body and outputs information according to the amount of light received. A blood glucose acquisition unit acquires the blood glucose in the blood in the living body based on the information obtained by the sensor.
    Type: Application
    Filed: February 14, 2022
    Publication date: September 12, 2024
    Applicants: ZEON CORPORATION, TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Koji KAWAJIRI, Rihito KURODA, Yasuyuki FUJIHARA, Shota NAKAYAMA, Hideaki HASEGAWA
  • Publication number: 20240172969
    Abstract: A biological information measuring device includes a light source that irradiates light, a sensor having a plurality of pixels arranged in an array in a two-dimensional plane and a saturation charge number of 1,000,000 or more. The sensor receives irradiated light transmitted, reflected, or scattered from the light source in a living body and outputs information according to the light intensity of the received light. A specific location selection unit selects a measurement target location of the measurement target for the biological information and a reference location different from the measurement target location, based on the information obtained by the image sensor. A biological information acquisition unit acquires biological information from the information obtained by the sensor at the measurement target location, using the information obtained by the sensor at the reference location as a reference.
    Type: Application
    Filed: February 14, 2022
    Publication date: May 30, 2024
    Applicants: ZEON CORPORATION, TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Koji KAWAJIRI, Rihito KURODA, Yasuyuki FUJIHARA, Shota NAKAYAMA, Hideaki HASEGAWA, Takayori ITO, Hiroyuki TAMAOKA
  • Patent number: 5657242
    Abstract: In order to determine the routes of wiring connections on a multi-layer circuit board, to form a suitable wiring pattern without local congestions of the wiring connections, the wiring region of the circuit board is considered as one or more areas. For each area, a preferred wiring direction is determined for each layer of the circuit board. Those preferred directions for the layers may be determined by proposing initial preferred wiring directions for each layer, determining whether there is congestion of the wiring connections in any area, and changing the wiring direction for one or more layers of such an area to reduce the congestion. Alternatively, the wiring directions can be determined for each layer without there being an initial wiring direction which is common to all areas.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: August 12, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Yutaka Sekiyama, Yasuyuki Fujihara, Terumine Hayashi, Hiromi Tanaka, Jiro Kusuhara