Patents by Inventor Masumi Izuchi
Masumi Izuchi 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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Publication number: 20230403929Abstract: A photoelectric conversion device includes a first electrode, a second electrode facing the first electrode, and a photoelectric conversion layer located between the first electrode and the second electrode and including a bulk heterojunction layer containing a donor organic compound and an acceptor organic compound. The donor organic compound includes a first substituent. The acceptor organic compound includes an aromatic portion and a second substituent binding to the aromatic portion and having dipole-dipole interaction with the first substituent.Type: ApplicationFiled: August 25, 2023Publication date: December 14, 2023Inventors: YUKO KISHIMOTO, HIROAKI IIJIMA, MASAYA HIRADE, MASUMI IZUCHI
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Publication number: 20230371289Abstract: An imaging device includes a photoelectric conversion element that includes a first electrode, a second electrode facing the first electrode, and a photoelectric conversion layer located between the first electrode and the second electrode; and a charge detection circuit that reads a charge generated in the photoelectric conversion element. The photoelectric conversion layer is a bulk heterojunction layer that contains a phthalocyanine derivative or a naphthalocyanine derivative and a fullerene polymer. In the fullerene polymer, a fullerene or a fullerene derivative is crosslinked by a crosslinking structure represented by general formula (1) below. In general formula (1), X is a bifunctional functional group.Type: ApplicationFiled: July 22, 2023Publication date: November 16, 2023Inventors: MASAYA HIRADE, HIROAKI IIJIMA, YUKO KISHIMOTO, MASUMI IZUCHI
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Publication number: 20230354623Abstract: A photocurrent multiplication device having an external quantum efficiency of 100% or more includes at least one first electrode, at least one second electrode facing the at least one first electrode, and a photoelectric conversion film that is located between the at least one first electrode and the at least one second electrode and that includes a donor material and an acceptor material. The photoelectric conversion film at least partially has a sea-island structure in which the donor material is interspersed in the photoelectric conversion film.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Inventors: HIROAKI IIJIMA, MASAYA HIRADE, YUKO KISHIMOTO, MASUMI IZUCHI
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Patent number: 11723224Abstract: An imaging apparatus includes a first electrode, a second electrode, and a photoelectric conversion layer located between the first electrode and the second electrode. The photoelectric conversion layer contains a first material, a second material, and a third material. The first material is a fullerene or a fullerene derivative. The second material is a donor-like organic semiconductor material. The average absorption coefficient in the visible light wavelength range of the third material is less than the average absorption coefficient in the visible light wavelength range of the first material.Type: GrantFiled: April 15, 2021Date of Patent: August 8, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tatsunori Momose, Hiroaki Iijima, Masumi Izuchi, Seiji Takagi
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Patent number: 11659299Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.Type: GrantFiled: December 13, 2021Date of Patent: May 23, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shinichi Machida, Takeyoshi Tokuhara, Manabu Nakata, Sanshiro Shishido, Masaaki Yanagida, Masumi Izuchi
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Publication number: 20230045956Abstract: A photoelectric conversion element includes a first electrode, a second electrode, a photoelectric conversion layer positioned between the first electrode and the second electrode and including a donor semiconductor material and an acceptor semiconductor material, and a first charge blocking layer positioned between the first electrode and the photoelectric conversion layer. The first charge blocking layer includes a first material and a second material having an energy band gap narrower than that of the first material. The electron affinity of the first material is lower than that of the second material, and the ionization potential of the first material is higher than that of the second material.Type: ApplicationFiled: September 27, 2022Publication date: February 16, 2023Inventors: MASUMI IZUCHI, HIROAKI IIJIMA, MASAYA HIRADE, YUKO KISHIMOTO
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Patent number: 11456337Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter and a voltage application circuit. The photoelectric converter includes a first electrode, a light-transmitting second electrode, a first photoelectric conversion layer containing a first material and a second photoelectric conversion layer containing a second material. The impedance of the first photoelectric conversion layer is larger than the impedance of the second photoelectric conversion layer. The voltage application circuit applies a first voltage or a second voltage having a larger absolute value than the first voltage selectively between the first electrode and the second electrode.Type: GrantFiled: April 5, 2021Date of Patent: September 27, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Nakata, Masumi Izuchi, Shinichi Machida, Yasunori Inoue
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Publication number: 20220103773Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.Type: ApplicationFiled: December 13, 2021Publication date: March 31, 2022Inventors: Shinichi MACHIDA, Takeyoshi TOKUHARA, Manabu NAKATA, Sanshiro SHISHIDO, Masaaki YANAGIDA, Masumi IZUCHI
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Patent number: 11277571Abstract: An image generation device includes: a voltage generator that generates a plurality of voltages each having a different voltage value; an image capturer that includes an organic photoconductive film, and performs imaging every time each of the plurality of voltages is applied; a luminance data obtainer that obtains a plurality of luminance data items corresponding to the plurality of voltages applied, each of the plurality of luminance data items being obtained from the imaging performed by the image capturer; and a color image generator that generates a color image based on the plurality of luminance data items.Type: GrantFiled: December 29, 2020Date of Patent: March 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kunio Nobori, Satoshi Sato, Takeo Azuma, Nobuhiko Wakai, Mitsuru Harada, Shinichi Machida, Masumi Izuchi
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Publication number: 20220059783Abstract: A composition contains a naphthalocyanine derivative represented by the following formula: where R1 to R8 are each independently an alkyl group, and R9 and R10 are each independently an aryl group.Type: ApplicationFiled: November 2, 2021Publication date: February 24, 2022Inventors: HIROAKI IIJIMA, MASAYA HIRADE, YUKO KISHIMOTO, MASUMI IZUCHI
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Patent number: 11233965Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.Type: GrantFiled: June 11, 2019Date of Patent: January 25, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shinichi Machida, Takeyoshi Tokuhara, Manabu Nakata, Sanshiro Shishido, Masaaki Yanagida, Masumi Izuchi
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Patent number: 11233955Abstract: An imaging apparatus includes a unit pixel including a pixel electrode; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the pixel electrode and the counter electrode; and a computing circuit that acquires a first signal upon a first voltage being applied between the pixel electrode and the counter electrode, the first signal corresponding to an image captured with visible light and infrared light and a second signal upon a second voltage being applied between the pixel electrode and the counter electrode, the second signal corresponding to an image captured with visible light, and generates a third signal by performing a computation using the first signal and the second signal, the third signal corresponding to an image captured with infrared light.Type: GrantFiled: February 10, 2021Date of Patent: January 25, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shinichi Machida, Masashi Murakami, Takeyoshi Tokuhara, Masaaki Yanagida, Sanshiro Shishido, Manabu Nakata, Masumi Izuchi
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Publication number: 20210335889Abstract: An imaging apparatus includes a first electrode, a second electrode, and a photoelectric conversion layer located between the first electrode and the second electrode. The photoelectric conversion layer contains a first material, a second material, and a third material. The first material is a fullerene or a fullerene derivative. The second material is a donor-like organic semiconductor material. The average absorption coefficient in the visible light wavelength range of the third material is less than the average absorption coefficient in the visible light wavelength range of the first material.Type: ApplicationFiled: April 15, 2021Publication date: October 28, 2021Inventors: TATSUNORI MOMOSE, HIROAKI IIJIMA, MASUMI IZUCHI, SEIJI TAKAGI
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Publication number: 20210225940Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter and a voltage application circuit. The photoelectric converter includes a first electrode, a light-transmitting second electrode, a first photoelectric conversion layer containing a first material and a second photoelectric conversion layer containing a second material. The impedance of the first photoelectric conversion layer is larger than the impedance of the second photoelectric conversion layer. The voltage application circuit applies a first voltage or a second voltage having a larger absolute value than the first voltage selectively between the first electrode and the second electrode.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Inventors: Manabu NAKATA, Masumi IZUCHI, Shinichi MACHIDA, Yasunori INOUE
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Publication number: 20210195122Abstract: An imaging apparatus includes a unit pixel including a pixel electrode; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the pixel electrode and the counter electrode; and a computing circuit that acquires a first signal upon a first voltage being applied between the pixel electrode and the counter electrode, the first signal corresponding to an image captured with visible light and infrared light and a second signal upon a second voltage being applied between the pixel electrode and the counter electrode, the second signal corresponding to an image captured with visible light, and generates a third signal by performing a computation using the first signal and the second signal, the third signal corresponding to an image captured with infrared light.Type: ApplicationFiled: February 10, 2021Publication date: June 24, 2021Inventors: Shinichi MACHIDA, Masashi MURAKAMI, Takeyoshi TOKUHARA, Masaaki YANAGIDA, Sanshiro SHISHIDO, Manabu NAKATA, Masumi IZUCHI
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Patent number: 10998380Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter and a voltage application circuit. The photoelectric converter includes a first electrode, a light-transmitting second electrode, a first photoelectric conversion layer containing a first material and a second photoelectric conversion layer containing a second material. The impedance of the first photoelectric conversion layer is larger than the impedance of the second photoelectric conversion layer. The voltage application circuit applies a first voltage or a second voltage having a larger absolute value than the first voltage selectively between the first electrode and the second electrode.Type: GrantFiled: November 13, 2018Date of Patent: May 4, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Nakata, Masumi Izuchi, Shinichi Machida, Yasunori Inoue
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Publication number: 20210120165Abstract: An image generation device includes: a voltage generator that generates a plurality of voltages each having a different voltage value; an image capturer that includes an organic photoconductive film, and performs imaging every time each of the plurality of voltages is applied; a luminance data obtainer that obtains a plurality of luminance data items corresponding to the plurality of voltages applied, each of the plurality of luminance data items being obtained from the imaging performed by the image capturer; and a color image generator that generates a color image based on the plurality of luminance data items.Type: ApplicationFiled: December 29, 2020Publication date: April 22, 2021Inventors: Kunio NOBORI, Satoshi SATO, Takeo AZUMA, Nobuhiko WAKAI, Mitsuru HARADA, Shinichi MACHIDA, Masumi IZUCHI
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Patent number: 10951839Abstract: An imaging apparatus includes a unit pixel including a pixel electrode; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the pixel electrode and the counter electrode; and a computing circuit that acquires a first signal upon a first voltage being applied between the pixel electrode and the counter electrode, the first signal corresponding to an image captured with visible light and infrared light and a second signal upon a second voltage being applied between the pixel electrode and the counter electrode, the second signal corresponding to an image captured with visible light, and generates a third signal by performing a computation using the first signal and the second signal, the third signal corresponding to an image captured with infrared light.Type: GrantFiled: October 7, 2019Date of Patent: March 16, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shinichi Machida, Masashi Murakami, Takeyoshi Tokuhara, Masaaki Yanagida, Sanshiro Shishido, Manabu Nakata, Masumi Izuchi
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Patent number: 10861904Abstract: An imaging device includes at least one unit pixel cell including a photoelectric converter that converts incident light into electric charges. The photoelectric converter includes: a first electrode; a light-transmitting second electrode; a first photoelectric conversion layer disposed between the first electrode and the second electrode and containing a first material having an absorption peak at a first wavelength; and a second photoelectric conversion layer disposed between the first photoelectric conversion layer and the second electrode and containing a second material having an absorption peak at a second wavelength different from the first wavelength. The absolute value of the ionization potential of the first material is larger by at least 0.2 eV than the absolute value of the ionization potential of the second material.Type: GrantFiled: December 31, 2019Date of Patent: December 8, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Nakata, Masumi Izuchi, Shinichi Machida, Yasunori Inoue
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Patent number: 10735652Abstract: A method for controlling an imaging device having a first mode to perform imaging in a first imaging wavelength band and a second mode to perform imaging in a second imaging wavelength band different from the first imaging wavelength band, and that allows switching of an operation mode from the first mode to the second mode or from the second mode to the first mode. The method including causing the imaging device to perform imaging in the first mode or the second mode; determining, with a predetermined frequency or in response to a predetermined trigger, whether to maintain a current operation mode or switch the current operation mode on the basis of first image information in the first imaging wavelength band and second image information in the second imaging wavelength band; and in accordance with the determination, selectively maintaining the current operation mode or switching the current operation mode.Type: GrantFiled: June 13, 2019Date of Patent: August 4, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Manabu Nakata, Shinichi Machida, Takeyoshi Tokuhara, Sanshiro Shishido, Masaaki Yanagida, Masumi Izuchi