Patents by Inventor Yuki NOBUSA

Yuki NOBUSA 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: 11647305
    Abstract: Disclosed are a solid-state imaging apparatus, a signal processing method of a solid-state imaging apparatus, and an electronic device, which are capable of correcting uneven sensitivities generated by multiple factors in a broad area and realizing the higher-precision image quality. A correction circuit 710 weight a sensitivity Pi corresponding to a pixel signal of each pixel related to correction in a pixel unit PU that is the correction target and a sensitivity Pi corresponding to a pixel signal of each pixel related to correction in at least one same color pixel unit PU and adjacent to the pixel unit PU that is the correction target by a weighting coefficient Wi. Consequently, the correction coefficient ? is calculated by dividing a sum of the weighted sensitivities by a total number n of pixels related to correction.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: May 9, 2023
    Assignee: SUPERBVUE SOLUTIONS, INC.
    Inventors: Shunsuke Tanaka, Yuki Nobusa, Noboru Yamamoto, Masaaki Tsuruta
  • Publication number: 20220415949
    Abstract: A pixel portion includes photodiodes formed on a semiconductor substrate as photoelectric conversion portions, and includes: a high absorption layer (HA layer) for controlling a reflection component of incident light on one surface side of the photodiodes (photoelectric conversion portions), and re-diffusing the incident light in the photoelectric conversion portions, on one surface side of the photodiodes upon which light is incident; and a diffused light suppression structure for suppressing diffused light (caused by light scattering) in a light incident path toward one surface side of the photoelectric conversion portions including the high absorption layer. Due to this, a solid-state imaging apparatus capable of reducing crosstalk between pixels, achieving miniaturization of pixel size, reducing color mixing, and achieving high sensitivity and high performance can be realized.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Shunsuke Tanaka, Yuki Nobusa
  • Publication number: 20220415939
    Abstract: Disclosed are an object of the present disclosure is to provide a solid-state imaging apparatus, a method of manufacturing a solid-state imaging apparatus, and an electronic device, which are capable of realizing superior low illuminance PDAF performance and superior light shielding performance at the same time, and which are capable of realizing higher-accuracy image quality. The pixel portion 20 is divided into a central region RCTR and a peripheral region RPRP, and in all of the pixel units PUP in the peripheral region RPRP, the number NP of same-color pixels PX which a microlens MCL is responsible for making light incident thereon is 2. The number NP is less than the number NC of same-color pixels PX in which a microlens MCL is responsible for making light incident thereon in the pixel unit PUC in the central region RCTR, which is 4. Moreover, the microlens MCL adopted in the central region RCTR and the microlens MCL adopted in the peripheral region RPRP have the same shape.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 29, 2022
    Inventors: Shunsuke Tanaka, Yuki Nobusa
  • Patent number: 11454581
    Abstract: The molecule detecting apparatus of an embodiment includes a light source 31, a fluorescent layer 42 emitting different fluorescence depending on the kind of a target molecule 60 captured when being irradiated with light from the light source 31, a photodetector 32 configured to detect fluorescence, and the photodetector 32 is an array of avalanche photodiodes operating in Geiger mode.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: September 27, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Honam Kwon, Ikuo Fujiwara, Kazuhiro Suzuki, Keita Sasaki, Yuki Nobusa, Yasushi Shinjo
  • Publication number: 20220210354
    Abstract: Disclosed are a solid-state imaging apparatus, a signal processing method of a solid-state imaging apparatus, and an electronic device, which are capable of correcting uneven sensitivities generated by multiple factors in a broad area and realizing the higher-precision image quality. A correction circuit 710 weight a sensitivity Pi corresponding to a pixel signal of each pixel related to correction in a pixel unit PU that is the correction target and a sensitivity Pi corresponding to a pixel signal of each pixel related to correction in at least one same color pixel unit PU and adjacent to the pixel unit PU that is the correction target by a weighting coefficient Wi. Consequently, the correction coefficient ? is calculated by dividing a sum of the weighted sensitivities by a total number n of pixels related to correction.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 30, 2022
    Inventors: Shunsuke Tanaka, Yuki Nobusa, Noboru Yamamoto, Masaaki Tsuruta
  • Patent number: 11346953
    Abstract: In one embodiment, a photo detector includes a plurality of photo detection elements, a plurality of trenches each provided among a plurality of the photo detection elements, and a wiring provided between the two photo detection elements out of the plurality of photo detection elements to electrically connect to the two photo detection elements. The trenches surround the 2·m (m is a positive integer) photo detection elements including the two photo detection elements. And the two photo detection elements are lined in a direction orthogonal to an extending direction of the metal layer for electrical connection.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 31, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Honam Kwon, Kazuhiro Suzuki, Ikuo Fujiwara, Keita Sasaki, Yuki Nobusa
  • Patent number: 11329184
    Abstract: A photodetector according to the present embodiment includes a plurality of light detectors. Each light detector has a first semiconductor layer of a first conductive type and a second semiconductor layer of a second conductive type different from the first conductive type, in which the first semiconductor layer and the second semiconductor layer constitute a PN junction. The photodetector further includes a quench resistor that is optically transmissive and connected to the second semiconductor layer.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 10, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaki Atsuta, Kazuhiro Suzuki, Ikuo Fujiwara, Honam Kwon, Keita Sasaki, Yuki Nobusa
  • Patent number: 11313956
    Abstract: A photodetector includes a plurality of first light detection elements having a first driving voltage range, the first light detection elements including first semiconductor layers having a first conductivity type and second semiconductor layers having a second conductivity type different from the first conductivity type; and a second light detection element having a second driving voltage range different from the first driving voltage range, the second light detection element including a third semiconductor layer having the first conductivity type and a fourth semiconductor layer having the second conductivity type.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: April 26, 2022
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Honam Kwon, Ikuo Fujiwara, Kazuhiro Suzuki, Keita Sasaki, Yuki Nobusa
  • Patent number: 11255954
    Abstract: In one embodiment, a photo detection element includes a first region of a first conductivity type, a second region of a second conductivity type, a third region of the first conductivity type provided between the first region and the second region, a fourth region of the second conductivity type provided so as to surround a periphery of the second region, in a direction crossing with a direction from the first region toward the second region, and a fifth region of the first conductivity type provided between the first region and the fourth region.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 22, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ikuo Fujiwara, Yuki Nobusa, Honam Kwon, Keita Sasaki, Kazuhiro Suzuki
  • Patent number: 11233163
    Abstract: In one embodiment, a photo detection element includes a first region of a first conductivity type, a second region of a second conductivity type, a third region of the first conductivity type provided between the second region and the first region, and a plurality of structure bodies of the first conductivity type which are provided between the first region and the third region separately in a second direction crossing with a first direction from the third region toward the second region.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: January 25, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuki Nobusa, Ikuo Fujiwara, Kazuhiro Suzuki
  • Patent number: 11189746
    Abstract: A photodetector includes a first cell for converting incident light into electric charges, the first cell including a first semiconductor layer, a second semiconductor layer and a first substrate interposing the first semiconductor layer with the second semiconductor layer; and a second cell for converting incident light into electric charges, the second cell including a third semiconductor layer, a fourth semiconductor layer, and a second substrate interposing the third semiconductor layer with the fourth semiconductor layer; wherein the second substrate is larger in thickness than the first substrate.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 30, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Risako Ueno, Kazuhiro Suzuki, Yuki Nobusa, Jiro Yoshida
  • Patent number: 11139326
    Abstract: A photodetector includes a first cell converting incident light into electric charges; and a second cell converting incident light into electric charges; wherein the first cell includes a first semiconductor layer and a second semiconductor layer provided to be closer to a light incident side than the first semiconductor layer, wherein the second cell includes a third semiconductor layer and a fourth semiconductor layer provided to be closer to a light incident side than the third semiconductor layer, wherein a first interface between the third semiconductor layer and the fourth semiconductor layer is located to be closer to the light incident side than a second interface between the first semiconductor layer and the second semiconductor layer.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 5, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuki Nobusa, Ikuo Fujiwara, Kazuhiro Suzuki
  • Publication number: 20210296381
    Abstract: A photodetector includes a first semiconductor layer including a light detection region and a peripheral region on a first surface on which light is incident. The light detection region is a region in which light detecting units are arrayed. The peripheral region is a semiconductor region disposed on the periphery of the light detection region and not including a light detecting unit. A density of a lattice defect or a concentration of impurity in a first layer region that is at least a part in a thickness direction of the peripheral region is higher than a density of a lattice defect or a concentration of impurity in a second layer region adjacent to the first layer region in a direction intersecting the thickness direction in the light detection region.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 23, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaki ATSUTA, Kazuhiro SUZUKI, Ikuo FUJIWARA, Honam KWON, Yuki NOBUSA
  • Publication number: 20210132230
    Abstract: According to one embodiment, a light detector includes an element including a photodiode. A plurality of the elements are provided. The element includes a structure body for at least a portion of the plurality of elements. The structure body surrounds the photodiode and has a different refractive index from the photodiode. At least portions of the structure bodies are separated from each other.
    Type: Application
    Filed: September 9, 2020
    Publication date: May 6, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ikuo FUJIWARA, Honam KWON, Yuki NOBUSA, Keita SASAKI, Kazuhiro SUZUKI, Masaki ATSUTA
  • Publication number: 20200295217
    Abstract: A photodetector according to the present embodiment includes a plurality of light detectors. Each light detector has a first semiconductor layer of a first conductive type and a second semiconductor layer of a second conductive type different from the first conductive type, in which the first semiconductor layer and the second semiconductor layer constitute a PN junction. The photodetector further includes a quench resistor that is optically transmissive and connected to the second semiconductor layer.
    Type: Application
    Filed: August 28, 2019
    Publication date: September 17, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Masaki ATSUTA, Kazuhiro SUZUKI, Ikuo FUJIWARA, Honam KWON, Keita SASAKI, Yuki NOBUSA
  • Publication number: 20200256778
    Abstract: The molecule detecting apparatus of an embodiment includes a light source 31, a fluorescent layer 42 emitting different fluorescence depending on the kind of a target molecule 60 captured when being irradiated with light from the light source 31, a photodetector 32 configured to detect fluorescence, and the photodetector 32 is an array of avalanche photodiodes operating in Geiger mode.
    Type: Application
    Filed: August 30, 2019
    Publication date: August 13, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Honam KWON, Ikuo FUJIWARA, Kazuhiro SUZUKI, Keita SASAKI, Yuki NOBUSA, Yasushi SHINJO
  • Publication number: 20200088852
    Abstract: In one embodiment, a photo detection element includes a first region of a first conductivity type, a second region of a second conductivity type, a third region of the first conductivity type provided between the first region and the second region, a fourth region of the second conductivity type provided so as to surround a periphery of the second region, in a direction crossing with a direction from the first region toward the second region, and a fifth region of the first conductivity type provided between the first region and the fourth region.
    Type: Application
    Filed: March 7, 2019
    Publication date: March 19, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Ikuo FUJIWARA, Yuki NOBUSA, Honam KWON, Keita SASAKI, Kazuhiro SUZUKI
  • Publication number: 20200091360
    Abstract: In one embodiment, a photo detection element includes a first region of a first conductivity type, a second region of a second conductivity type, a third region of the first conductivity type provided between the second region and the first region, and a plurality of structure bodies of the first conductivity type which are provided between the first region and the third region separately in a second direction crossing with a first direction from the third region toward the second region.
    Type: Application
    Filed: March 6, 2019
    Publication date: March 19, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yuki NOBUSA, Ikuo FUJIWARA, Kazuhiro SUZUKI
  • Publication number: 20200025934
    Abstract: In one embodiment, a photo detector includes a plurality of photo detection elements, a plurality of trenches each provided among a plurality of the photo detection elements, and a wiring provided between the two photo detection elements out of the plurality of photo detection elements to electrically connect to the two photo detection elements. The trenches surround the 2·m (m is a positive integer) photo detection elements including the two photo detection elements. And the two photo detection elements are lined in a direction orthogonal to an extending direction of the metal layer for electrical connection.
    Type: Application
    Filed: February 28, 2019
    Publication date: January 23, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Honam KWON, Kazuhiro SUZUKI, Ikuo FUJIWARA, Keita SASAKI, Yuki NOBUSA
  • Publication number: 20190293767
    Abstract: A photodetector includes a plurality of first light detection elements having a first driving voltage range, the first light detection elements including first semiconductor layers having a first conductivity type and second semiconductor layers having a second conductivity type different from the first conductivity type; and a second light detection element having a second driving voltage range different from the first driving voltage range, the second light detection element including a third semiconductor layer having the first conductivity type and a fourth semiconductor layer having the second conductivity type.
    Type: Application
    Filed: September 12, 2018
    Publication date: September 26, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Honam KWON, lkuo FUJIWARA, Kazuhiro SUZUKI, Keita SASAKI, Yuki NOBUSA