Patents by Inventor Tamaki Kobayashi

Tamaki Kobayashi 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: 20240159922
    Abstract: A radiation detection apparatus comprises a rectangular sensor panel having a pixel array including a plurality of photoelectric conversion elements, and a scintillator layer on which a plurality of columnar crystals configured to convert radiation into light are arranged. The scintillator layer has one side along an outer shape of the sensor panel and an opposite side of the one side and a region between the one side and the opposite side in which directions in which columnar crystals extend and a normal line of a main surface of the sensor panel form angles. The angles have a concentric angle distribution decreasing in angle from a central portion of the one side toward the opposite side, and thicknesses of the plurality of columnar crystals have a concentric thickness distribution increasing in thickness from the central portion of the one side to the opposite side.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 16, 2024
    Inventors: TOMOKI KOMATSU, YOHEI ISHIDA, TAMAKI KOBAYASHI
  • Publication number: 20240138787
    Abstract: A radiation detection apparatus includes a first sensor panel that generates a signal in accordance with incident radiation, a second sensor panel that generates a signal in accordance with incident radiation, and an adhesive member that couples together the first sensor panel and the second sensor panel. When a stimulation is applied to the adhesive member, an adhesive force of the adhesive member is lowered to a strength at which the first sensor panel and the second sensor panel can be separated without causing damage.
    Type: Application
    Filed: September 25, 2023
    Publication date: May 2, 2024
    Inventors: DAIKI NAKAGAWA, YOSHITO SASAKI, TAMAKI KOBAYASHI, MASATO OFUJI
  • Publication number: 20240072085
    Abstract: A radiation imaging apparatus in which a sensor substrate and a scintillator are bonded by a bonding member, is provided. The scintillator includes a first surface opposing the sensor substrate via the bonding member and covered by a first protective layer, a second surface disposed on an opposite side of the first surface and covered by a second protective layer, and a third surface connecting the first surface and the second surface and covered by a third protective layer. The first protective layer, the second protective layer, and the third protective layer are each configured by one or more layers, and a number of layers of the first protective layer is less than or equal to respective numbers of layers of the second protective layer and the third protective layer.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 29, 2024
    Inventors: TOMOYUKI OIKE, TAMAKI KOBAYASHI
  • Publication number: 20240063247
    Abstract: A manufacturing method of a radiation imaging apparatus in which a sensor substrate and a scintillator are bonded by a bonding member, is provided. The method includes: forming, on a support substrate, a functional layer including a moisture preventing layer configured to suppress permeation of water; forming the scintillator on the support substrate with the functional layer arranged thereon; and separating, from the support substrate, at least a part of the scintillator together with the functional layer.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 22, 2024
    Inventors: YOSHITO SASAKI, TAMAKI KOBAYASHI, MASATO OFUJI, TOMOYUKI OIKE, MASAO INA
  • Patent number: 11774607
    Abstract: A scintillator panel is provided. The scintillator panel comprises: a support; a scintillator configured to generate light in accordance with incident radiation; a light reflecting layer arranged between the support and the scintillator and configured to reflect the light; a semi-transmissive layer arranged between the light reflecting layer and the scintillator and configured to reflect part of the light and transmit other part of the light; and an optical adjustment layer arranged between the light reflecting layer and the semi-transmissive layer and configured to make an optical distance between the light reflecting layer and the semi-transmissive layer become a length with which the light resonates.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: October 3, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Taiji Tomita, Tomoyuki Oike, Tamaki Kobayashi, Masami Tsukamoto
  • Publication number: 20230046099
    Abstract: A scintillator panel is provided. The scintillator panel comprises: a support; a scintillator configured to generate light in accordance with incident radiation; a light reflecting layer arranged between the support and the scintillator and configured to reflect the light; a semi-transmissive layer arranged between the light reflecting layer and the scintillator and configured to reflect part of the light and transmit other part of the light; and an optical adjustment layer arranged between the light reflecting layer and the semi-transmissive layer and configured to make an optical distance between the light reflecting layer and the semi-transmissive layer become a length with which the light resonates.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 16, 2023
    Inventors: Taiji Tomita, Tomoyuki Oike, Tamaki Kobayashi, Masami Tsukamoto
  • Patent number: 10067242
    Abstract: A method of manufacturing a scintillator, includes growing a scintillator layer constituted by a plurality of column crystals on a base, forming a first protection film so as to cover the scintillator layer, planarizing the first protection film, the planarizing including a polishing process of polishing the first protection film, and forming a second protection film configured to cover the first protection film that has undergone the planarizing. The scintillator layers grown on the base include an abnormally grown portion. In the polishing process, a front end of the abnormally grown portion is polished as well as a surface of the first protection film so as to form a continuation surface by the surface of the first protection film and a surface of the abnormally grown portion.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Tamaki Kobayashi, Tomoaki Ichimura
  • Publication number: 20170038482
    Abstract: A method of manufacturing a scintillator, includes growing a scintillator layer constituted by a plurality of column crystals on a base, forming a first protection film so as to cover the scintillator layer, planarizing the first protection film, the planarizing including a polishing process of polishing the first protection film, and forming a second protection film configured to cover the first protection film that has undergone the planarizing. The scintillator layers grown on the base include an abnormally grown portion. In the polishing process, a front end of the abnormally grown portion is polished as well as a surface of the first protection film so as to form a continuation surface by the surface of the first protection film and a surface of the abnormally grown portion.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 9, 2017
    Inventors: Yohei Ishida, Tamaki Kobayashi, Tomoaki Ichimura
  • Patent number: 9315919
    Abstract: Provided is a scintillator plate including a crystalline body formed of a compound having a crystal structure of a Cs3Cu2I5 crystal and a substrate, in which an orientation of the crystalline body is an a-axis group orientation with respect to a direction perpendicular to the substrate.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: April 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshinori Shibutani, Tamaki Kobayashi, Tomoyuki Oike, Ryoko Ueyama, Toru Den
  • Patent number: 9091768
    Abstract: Improvement in luminescence intensity is demanded from a scintillator material. The present invention provides a new scintillator material by adding a specific element selected from thallium and indium to a material having a basic composition represented by an alkali element:copper:a halogen element=3:2:5.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tamaki Kobayashi, Ryoko Ueyama, Toru Den
  • Publication number: 20150034841
    Abstract: Provided is a scintillator plate including a crystalline body formed of a compound having a crystal structure of a Cs3Cu2I5 crystal and a substrate, in which an orientation of the crystalline body is an a-axis group orientation with respect to a direction perpendicular to the substrate.
    Type: Application
    Filed: July 23, 2014
    Publication date: February 5, 2015
    Inventors: Yoshinori Shibutani, Tamaki Kobayashi, Tomoyuki Oike, Ryoko Ueyama, Toru Den
  • Publication number: 20140264044
    Abstract: Improvement in luminescence intensity is demanded from a scintillator material. The present invention provides a new scintillator material by adding a specific element selected from thallium and indium to a material having a basic composition represented by an alkali element:copper:a halogen element=3:2:5.
    Type: Application
    Filed: June 6, 2012
    Publication date: September 18, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tamaki Kobayashi, Ryoko Ueyama, Toru Den
  • Patent number: 8648311
    Abstract: A radiation detector including a scintillator structure comprising a first plane and a second plane which are not positioned on the same plane, the scintillator structure having an optical waveguiding property in a direction between the first plane and the second plane; and a two-dimensional light receiving element formed of multiple pixels which are disposed parallel to either one of the first plane and the second plane. The radiation detector includes at least one smoothness-deteriorate region which is positioned in one of the first plane and the second plane of the scintillator structure and has an area of 1/6 or more of a light receiving area of each of the multiple pixels. The region is repaired by an optically transparent material so as to be smoothed.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: February 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tamaki Kobayashi, Tatsuya Saito, Nobuhiro Yasui, Toru Den
  • Publication number: 20130015360
    Abstract: A radiation detector including a scintillator structure comprising a first plane and a second plane which are not positioned on the same plane, the scintillator structure having an optical waveguiding property in a direction between the first plane and the second plane; and a two-dimensional light receiving element formed of multiple pixels which are disposed parallel to either one of the first plane and the second plane. The radiation detector includes at least one smoothness-deteriorate region which is positioned in one of the first plane and the second plane of the scintillator structure and has an area of 1/6 or more of a light receiving area of each of the multiple pixels. The region is repaired by an optically transparent material so as to be smoothed.
    Type: Application
    Filed: June 22, 2012
    Publication date: January 17, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tamaki Kobayashi, Tatsuya Saito, Nobuhiro Yasui, Toru Den
  • Patent number: 8177987
    Abstract: A method for producing an electron-emitting device includes forming a first conductive film on a side surface of an insulation layer including the side surface and a top surface connected to the side surface; forming a second conductive film from the top surface to the side surface and on the first conductive film; and etching the second electrically conductive film.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: May 15, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyota Nozu, Kenichi Iwata, Tamaki Kobayashi, Shin Kitamura, Akira Shimazu
  • Patent number: 8022608
    Abstract: By applying a drive voltage Vf [V] between first and second conductive films, when electrons are emitted by the first conductive film, an equipotential line of 0.5 Vf [V] is inclined toward the first conductive film, rather than toward the second conductive film, in the vicinity of the electron emitting portion of the first conductive film, in a cross section extending across the electron emitting portion and the portion of the second conductive film located nearest the electron emitting portion. The present invention improves electron emission efficiency.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koki Nukanobu, Keisuke Yamamoto, Tamaki Kobayashi, Takuto Moriguchi
  • Patent number: 7850502
    Abstract: An electron-emitting device manufacturing method includes a first step of forming a conductive film on an insulating layer having an upper surface and a side surface connected to the upper surface via a corner portion so as to extend from the side surface to the upper surface and cover at least a part of the corner portion, and a second step of etching the conductive film in a film thickness direction. At the first step, the conductive film is formed so that film density of the conductive film on the side surface of the insulating layer becomes the same as or higher than film density of the conductive film on the upper portion of the insulating film.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: December 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuu Nishimura, Tamaki Kobayashi, Yusuke Miyamoto, Takuto Moriguchi, Eiji Takeuchi, Takahiro Sato
  • Patent number: 7786658
    Abstract: An electron-emitting device has an insulating layer having a side surface, a recess portion formed on the side surface of the insulating layer, a gate electrode which is arranged above the recess portion, and a wedge-shaped emitter which is arranged on an edge of a lower side of the recess portion and has a first slope on a side of the recess portion and a second slope on a side opposite to the recess portion. A lower end of the first slope of the emitter enters the recess portion, and both the first slope and the second slope of the emitter tilt to an outside of the recess portion.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: August 31, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junya Tanaka, Shin Kitamura, Tamaki Kobayashi, Tsuyoshi Takegami
  • Publication number: 20100201246
    Abstract: An electron-emitting device has an insulating layer having a side surface, a recess portion formed on the side surface of the insulating layer, a gate electrode which is arranged above the recess portion, and a wedge-shaped emitter which is arranged on an edge of a lower side of the recess portion and has a first slope on a side of the recess portion and a second slope on a side opposite to the recess portion. A lower end of the first slope of the emitter enters the recess portion, and both the first slope and the second slope of the emitter tilt to an outside of the recess portion.
    Type: Application
    Filed: April 10, 2009
    Publication date: August 12, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Junya Tanaka, Shin Kitamura, Tamaki Kobayashi, Tsuyoshi Takegami
  • Publication number: 20100187095
    Abstract: A boride film is deposited on a substrate through an opening portion a shield member located between the substrate and a target by means of a sputtering method. The shield member is arranged so as to shield between an erosion region of the target and the substrate. A distribution of plasma density in a space between the substrate and the target is set in such a manner that a plasma density in a region in which the opening portion is located becomes higher than a plasma density in a region shielded by the shield member.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 29, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Naofumi Aoki, Tomoyasu Mizuno, Tamaki Kobayashi, Yusuke Miyamoto