Patents by Inventor Yusei TAMURA

Yusei TAMURA 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).

  • Photodetector device having avalanche photodiodes two-dimensionally arranged on a compound semiconductor layer and quenching element connected in series to the photodiodes
    Patent number: 11860032
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: January 2, 2024
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya Fujita, Yusei Tamura, Kenji Makino, Takashi Baba, Koei Yamamoto
  • PHOTODETECTOR DEVICE
    Publication number: 20230358607
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Applicant: Hamamatsu Photonics K.K.
    Inventors: Takuya FUJITA, Yusei Tamura, Kenji Makino, Takashi Baba, Koel Yamamoto
  • PHOTODETECTOR DEVICE
    Publication number: 20210356319
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 18, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya FUJITA, Yusei TAMURA, Kenji MAKINO, Takashi BABA, Koei YAMAMOTO
  • Photodetector device comprising each of a plurality of passive quenching elements connected in series to at least one avalanche photodiode and a capacitative element connected in parallel to the passive quenching element
    Patent number: 11125616
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 21, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya Fujita, Yusei Tamura, Kenji Makino, Takashi Baba, Koei Yamamoto
  • PHOTODETECTOR DEVICE
    Publication number: 20200370954
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Application
    Filed: January 24, 2019
    Publication date: November 26, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya FUJITA, Yusei TAMURA, Kenji MAKINO, Takashi BABA, Koei YAMAMOTO