Patents by Inventor Kohei Nakayama
Kohei Nakayama 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).
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Patent number: 11171253Abstract: A solar cell of an embodiment includes: a first electrode; a second electrode; a light-absorbing layer interposed between the first electrode and the second electrode; a dot region interposed between the first electrode and the light-absorbing layer, the dot region including dots.Type: GrantFiled: August 31, 2017Date of Patent: November 9, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Soichiro Shibasaki, Miyuki Shiokawa, Sara Yoshio, Naoyuki Nakagawa, Yukitami Mizuno, Kohei Nakayama, Mutsuki Yamazaki, Yoshiko Hiraoka, Kazushige Yamamoto, Yuya Honishi, Takeshi Niimoto
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Patent number: 11125895Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. The organic conversion layer is provided between the first electrode and the second electrode, and is configured to convert energy of a radiant ray into a charge. The third electrode is provided inside the organic conversion layer. Bias is applied to the third electrode.Type: GrantFiled: September 6, 2018Date of Patent: September 21, 2021Assignee: Kabushiki Kaisha ToshibaInventors: Kohei Nakayama, Fumihiko Aiga, Go Kawata, Isao Takasu, Yuko Nomura, Satomi Taguchi, Hyangmi Jung, Atsushi Wada, Rei Hasegawa
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Patent number: 11037993Abstract: A detection device according to an embodiment of the present disclosure includes a plurality of semiconductor layers, each including a plurality of electrode regions and a semiconductor region. The plurality of electrode regions are: arranged at intervals in a cross direction crossing a thickness direction; configured to generate electric charges by a photoelectric effect of irradiation of radiation; and configured to produce an electric field in the cross direction by voltage application. The semiconductor region is provided at least between the electrode regions adjacent to one another in the cross direction. The plurality of semiconductor layers are stacked in the thickness direction.Type: GrantFiled: February 28, 2020Date of Patent: June 15, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kohei Nakayama, Fumihiko Aiga, Atsushi Wada, Isao Takasu, Yuko Nomura, Sara Yoshio, Rei Hasegawa
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Publication number: 20210055435Abstract: According to one embodiment, a radiation detector includes a first layer including a metal complex, a first conductive layer, a second conductive layer provided between the first layer and the first conductive layer, and an organic semiconductor layer provided between the first conductive layer and the second conductive layer.Type: ApplicationFiled: March 11, 2020Publication date: February 25, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Fumihiko AIGA, Atsushi WADA, Kohei NAKAYAMA, Yuko NOMURA, Sara YOSHIO, Rei HASEGAWA, lsao TAKASU
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Patent number: 10930861Abstract: According to one embodiment, a radiation detector includes a detection element. The detection element includes a first conductive layer, a second conductive layer, and an organic semiconductor layer provided between the first conductive layer and the second conductive layer. The organic semiconductor layer includes a first compound and a second compound. The first compound is bipolar. A thickness of the organic semiconductor layer is 50 ?m or more.Type: GrantFiled: March 5, 2019Date of Patent: February 23, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Isao Takasu, Hyangmi Jung, Kohei Nakayama, Yuko Nomura, Rei Hasegawa
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Patent number: 10901100Abstract: According to an embodiment, a radiation detector includes a plurality of absorbers, a resistor, and a heat bath member. The absorbers absorb radiation. The resistor undergoes a change in resistance according to a change in temperature of the absorbers. The heat bath member is maintained at a temperature at which resistance of the resistor becomes equal to a specific resistance value, and is positioned to be in thermal contact with the resistor. The absorbers are positioned to be in contact with the resistor, and are arranged at a distance from each other.Type: GrantFiled: March 8, 2019Date of Patent: January 26, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Kohei Nakayama
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Publication number: 20200395415Abstract: A detection device according to an embodiment of the present disclosure includes a plurality of semiconductor layers, each including a plurality of electrode regions and a semiconductor region. The plurality of electrode regions are: arranged at intervals in a cross direction crossing a thickness direction; configured to generate electric charges by a photoelectric effect of irradiation of radiation; and configured to produce an electric field in the cross direction by voltage application. The semiconductor region is provided at least between the electrode regions adjacent to one another in the cross direction. The plurality of semiconductor layers are stacked in the thickness direction.Type: ApplicationFiled: February 28, 2020Publication date: December 17, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kohei NAKAYAMA, Fumihiko Aiga, Atsushi Wada, Isao Takasu, Yuko Nomura, Sara Yoshio, Rei Hasegawa
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Patent number: 10761222Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. A bias is applied to the first electrode. The organic conversion layer is arranged between the first electrode and the second electrode, and is configured to convert energy of a radiation into an electric charge. The third electrode is arranged in the organic conversion layer.Type: GrantFiled: September 5, 2018Date of Patent: September 1, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Kohei Nakayama, Fumihiko Aiga, Go Kawata, Isao Takasu, Yuko Nomura, Satomi Taguchi, Hyangmi Jung, Atsushi Wada, Rei Hasegawa
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Patent number: 10714699Abstract: According to an embodiment, a detecting element includes a first electrode, a second electrode, an organic conversion layer, a third electrode. The first electrode and the third electrode are configured to keep different potentials by DC power supply. The organic conversion layer is disposed in between the first electrode and the second electrode, and is configured to convert energy of radiation into electrical charge. The third electrode is disposed at least either in the organic conversion layer, or in between the organic conversion layer and the first electrode, or in between the organic conversion layer and the second electrode, and is at least partially covered by an insulating film.Type: GrantFiled: March 8, 2019Date of Patent: July 14, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Kohei Nakayama
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Publication number: 20200091440Abstract: According to one embodiment, a radiation detector includes a detection element. The detection element includes a first conductive layer, a second conductive layer, and an organic semiconductor layer provided between the first conductive layer and the second conductive layer. The organic semiconductor layer includes a first compound and a second compound. The first compound is bipolar. A thickness of the organic semiconductor layer is 50 ?m or more.Type: ApplicationFiled: March 5, 2019Publication date: March 19, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Isao TAKASU, Hyangmi JUNG, Kohei NAKAYAMA, Yuko NOMURA, Rei HASEGAWA
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Publication number: 20200091452Abstract: According to an embodiment, a detecting element includes a first electrode, a second electrode, an organic conversion layer, a third electrode. The first electrode and the third electrode are configured to keep different potentials by DC power supply. The organic conversion layer is disposed in between the first electrode and the second electrode, and is configured to convert energy of radiation into electrical charge. The third electrode is disposed at least either in the organic conversion layer, or in between the organic conversion layer and the first electrode, or in between the organic conversion layer and the second electrode, and is at least partially covered by an insulating film.Type: ApplicationFiled: March 8, 2019Publication date: March 19, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Kohei Nakayama
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Publication number: 20200083298Abstract: According to one embodiment, a radiation detector includes a first member, a first electrode, a second electrode, and an organic photoelectric conversion layer. The first member converts radiation into light and has a first surface. The first surface includes a first portion and a second portion. The first electrode is provided at the first portion. The second electrode is provided at the second portion. A first intermediate region of the organic photoelectric conversion layer is provided between the first electrode and the second electrode.Type: ApplicationFiled: March 11, 2019Publication date: March 12, 2020Applicant: Kabushiki Kaisha ToshibaInventors: Rei Hasegawa, Kohei Nakayama, Isao Takasu
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Publication number: 20200033490Abstract: According to an embodiment, a radiation detector includes a plurality of absorbers, a resistor, and a heat bath member. The absorbers absorb radiation. The resistor undergoes a change in resistance according to a change in temperature of the absorbers. The heat bath member is maintained at a temperature at which resistance of the resistor becomes equal to a specific resistance value, and is positioned to be in thermal contact with the resistor. The absorbers are positioned to be in contact with the resistor, and are arranged at a distance from each other.Type: ApplicationFiled: March 8, 2019Publication date: January 30, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Kohei NAKAYAMA
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Publication number: 20190285759Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. The organic conversion layer is provided between the first electrode and the second electrode, and is configured to convert energy of a radiant ray into a charge. The third electrode is provided inside the organic conversion layer. Bias is applied to the third electrode.Type: ApplicationFiled: September 6, 2018Publication date: September 19, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Kohei NAKAYAMA, Fumihiko AIGA, Go KAWATA, lsao TAKASU, Yuko NOMURA, Satomi TAGUCHI, Hyangmi JUNG, Atsushi WADA, Rei HASEGAWA
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Patent number: 10408953Abstract: According to one embodiment, a radiation detector includes a metal member, a capacitor, and a first charge-sensitive amplifier. The metal member includes a first portion and a second portion. The capacitor is electrically connected to the second portion. The first charge-sensitive amplifier is electrically connected to the first portion. The first charge-sensitive amplifier outputs a signal corresponding to ?-rays incident on the metal member.Type: GrantFiled: August 31, 2018Date of Patent: September 10, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Rei Hasegawa, Kohei Nakayama
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Publication number: 20190265370Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. A bias is applied to the first electrode. The organic conversion layer is arranged between the first electrode and the second electrode, and is configured to convert energy of a radiation into an electric charge. The third electrode is arranged in the organic conversion layer.Type: ApplicationFiled: September 5, 2018Publication date: August 29, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Kohei Nakayama, Fumihiko Aiga, Go Kawata, Isao Takasu, Yuko Nomura, Satomi Taguchi, Hyangmi Jung, Atsushi Wada, Rei Hasegawa
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Publication number: 20190257960Abstract: According to one embodiment, a radiation detector includes a metal member, a capacitor, and a first charge-sensitive amplifier. The metal member includes a first portion and a second portion. The capacitor is electrically connected to the second portion. The first charge-sensitive amplifier is electrically connected to the first portion. The first charge-sensitive amplifier outputs a signal corresponding to ?-rays incident on the metal member.Type: ApplicationFiled: August 31, 2018Publication date: August 22, 2019Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Rei Hasegawa, Kohei Nakayama
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Patent number: 10205211Abstract: A thermal insulation waveguide between a high-temperature unit and a low-temperature unit in a vacuum, chamber of an embodiment, the thermal insulation waveguide includes, a first substrate including a first line in the high-temperature unit, a second substrate including a second line in the low temperature unit, and a thermal insulation element connecting the substrates, and including a third line including an inductance component and connecting the first and second lines. The first substrate includes a first capacitor unit connected with the first line. The second substrate includes a second capacitor unit connected with the second line.Type: GrantFiled: September 8, 2016Date of Patent: February 12, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Tamio Kawaguchi, Noritsugu Shiokawa, Hiroaki Ikeuchi, Tadahiro Sasaki, Kohei Nakayama, Mutsuki Yamazaki, Hiroyuki Kayano
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Publication number: 20180083150Abstract: A solar cell of an embodiment includes: a first electrode; a second electrode; a light-absorbing layer interposed between the first electrode and the second electrode; a dot region interposed between the first electrode and the light-absorbing layer, the dot region including dots.Type: ApplicationFiled: August 31, 2017Publication date: March 22, 2018Inventors: Soichiro Shibasaki, Miyuki Shiokawa, Sara Yoshio, Naoyuki Nakagawa, Yukitami Mizuno, Kohei Nakayama, Mutsuki Yamazaki, Yoshiko Hiraoka, Kazushige Yamamoto, Yuya Honishi, Takeshi Niimoto
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Publication number: 20170077580Abstract: A thermal insulation waveguide between a high-temperature unit and a low-temperature unit in a vacuum, chamber of an embodiment, the thermal insulation waveguide includes, a first substrate including a first line in the high-temperature unit, a second substrate including a second line in the low temperature unit, and a thermal insulation element connecting the substrates, and including a third line including an inductance component and connecting the first and second lines. The first substrate includes a first capacitor unit connected with the first line. The second substrate includes a second capacitor unit connected with the second line.Type: ApplicationFiled: September 8, 2016Publication date: March 16, 2017Inventors: Tamio KAWAGUCHI, Noritsugu SHIOKAWA, Hiroaki IKEUCHI, Tadahiro SASAKI, Kohei NAKAYAMA, Mutsuki YAMAZAKI, Hiroyuki KAYANO