Patents by Inventor Yuichi Ito
Yuichi Ito 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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Semiconductor light-emitting device and method for manufacturing semiconductor light-emitting device
Patent number: 12261251Abstract: A semiconductor light-emitting device includes: a substrate having a wiring electrode; a semiconductor light-emitting element mounted on the wiring electrode and having a light-emitting functional layer with an upper surface exposed; a wavelength conversion plate mounted on the light-emitting functional layer and being made of a sintered body including fluorescent material particles and binder particles; and an adhesive layer including a resin medium for adhering a light-incident surface of the wavelength conversion plate to a light output surface of the light-emitting functional layer, and resin particles dispersed in the resin medium. The light-incident surface can expose a sintered surface of the sintered body with a concave portion, and the resin particles are fitted in the concave portion and compressively deformed. The semiconductor light-emitting device is capable of reducing the heat generated from the wavelength conversion plate and of maintaining the high light output.Type: GrantFiled: June 21, 2022Date of Patent: March 25, 2025Assignee: STANLEY ELECTRIC CO., LTD.Inventor: Yuichi Ito -
Publication number: 20250095695Abstract: According to one embodiment, a magnetic memory device includes a first wiring line extending along a first direction, a second wiring line provided on an upper layer side of the first wiring line and extending along a second direction, a memory cell provided between the first wiring line and the second wiring line, including a bottom surface connected to the first wiring line and a top surface connected to the second wiring line, and including a magnetoresistance effect element and a switching element stacked in a third direction, and a contact including a top surface connected to the second wiring line, the top surface of the contact being located higher than the top surface of the memory cell.Type: ApplicationFiled: September 12, 2024Publication date: March 20, 2025Applicant: Kioxia CorporationInventor: Yuichi ITO
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Patent number: 12254379Abstract: In an information reader, a first relationship information, which defines the two-dimensional area of a first information code (e.g., the position coordinates of the four corner points), is detected from a first information code image. The first information code is subjected to reading information, based on the detected first relationship information. Parameters of a learning model are then adjusted based on training data including multiple successful cases of a reading process using the first relationship information. A second information code image captured by a camera is inputted to the learning model. A second relationship information, which is an estimated value of the information that defines the two-dimensional region of the second information code, is obtained from the learning model. The information recorded in the second information code is read based on the acquired second relationship information, thus reading results being outputted.Type: GrantFiled: March 31, 2022Date of Patent: March 18, 2025Assignee: DENSO WAVE INCORPORATEDInventors: Kentaro Sasaki, Koji Konosu, Yuichi Ito, Yosuke Kanbe, Takeshi Fujisumi, Yoshihiro Yamazaki, Ryohei Kagami
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Patent number: 12238936Abstract: According to one embodiment, a memory device includes: a switching element including first and second conductive layers, and a variable resistive layer between the first and second conductive layers. The first or second conductive layers includes a first layer, a second layer between the first layer and the variable resistive layer, and a third layer between the first layer and the second layer. Each of the first and second layers is selected from a layer including carbon, a layer including nitrogen and carbon, a layer including nitrogen and titanium, a layer including nitrogen and tantalum, a layer including tungsten, a layer including nitrogen and tungsten, and a layer including platinum. The third layer includes at least one selected from lithium, sodium, magnesium, calcium, titanium, or lanthanum.Type: GrantFiled: March 2, 2022Date of Patent: February 25, 2025Assignee: Kioxia CorporationInventors: Yuichi Ito, Taichi Igarashi
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Patent number: 12201034Abstract: According to one embodiment, a memory device includes a memory cell including a magnetoresistive effect element. The magnetoresistive effect element includes a non-magnetic layer between first and second electrodes in the first direction, a first magnetic layer between the first electrode and the non-magnetic layer, a second magnetic layer between the second electrode and the non-magnetic layer, and a first layer between the second electrode and the second magnetic layer. The first layer includes oxygen and at least one selected from magnesium, transition metal, and lanthanoid, the first layer has a first size in the first direction, the non-magnetic layer has a second size in the first direction. The first size is 1.1 times or more and 2 times or less the second size.Type: GrantFiled: December 14, 2021Date of Patent: January 14, 2025Assignee: Kioxia CorporationInventors: Taichi Igarashi, Yuichi Ito, Eiji Kitagawa, Taiga Isoda
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Patent number: 12193340Abstract: A switching element includes a first electrode, a second electrode, and a switching material layer provided between the first electrode and the second electrode. The switching material layer contains silicon (Si), oxygen (O), arsenic (As), and a predetermined element selected from lead (Pb), silver (Ag), indium (In), tin (Sn), copper (Cu), zinc (Zn), gallium (Ga), germanium (Ge), selenium (Se), antimony (Sb), tellurium (Te), gold (Au) and bismuth (Bi).Type: GrantFiled: September 13, 2022Date of Patent: January 7, 2025Assignee: Kioxia CorporationInventors: Taichi Igarashi, Yuichi Ito, Eiji Kitagawa
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Publication number: 20240380398Abstract: An integrated circuit includes a Wheatstone bridge and a bias voltage circuit. The Wheatstone bridge includes a first resistor connected between a first node on a high potential side at which a predetermined voltage is generated and a second node, a second resistor connected between the second node and a third node on a low potential side, a third resistor connected between the first node and a fourth node, and a fourth resistor connected between the fourth node and the third node. The bias voltage circuit includes a fifth resistor having a first end connected to the third node and a second end, and a first operational amplifier circuit having an inverting input terminal to which the second end of the fifth resistor is connected, a non-inverting input terminal configured to receive a reference voltage lower than the predetermined voltage, and an output terminal connected to the third node.Type: ApplicationFiled: March 7, 2024Publication date: November 14, 2024Applicant: FUJI ELECTRIC CO., LTD.Inventor: Yuichi ITO
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Patent number: 12029136Abstract: According to one embodiment, a magnetic memory device includes a magnetoresistance effect element including first and second magnetic layers each having a fixed magnetization direction, a third magnetic layer provided between the first and second magnetic layers, and having a variable magnetization direction, a first nonmagnetic layer between the first and third magnetic layers, and a second nonmagnetic layer between the second and third magnetic layers, and a switching element connected in series to the magnetoresistance effect element, changing from an electrically nonconductive state to an electrically conductive state when a voltage applied between two terminals is higher than or equal to a threshold voltage.Type: GrantFiled: March 15, 2021Date of Patent: July 2, 2024Assignee: Kioxia CorporationInventors: Shogo Itai, Tadaomi Daibou, Yuichi Ito, Katsuyoshi Komatsu
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Publication number: 20240176970Abstract: In an information reader, a first relationship information, which defines the two-dimensional area of a first information code (e.g., the position coordinates of the four corner points), is detected from a first information code image. The first information code is subjected to reading information, based on the detected first relationship information. Parameters of a learning model are then adjusted based on training data including multiple successful cases of a reading process using the first relationship information. A second information code image captured by a camera is inputted to the learning model. A second relationship information, which is an estimated value of the information that defines the two-dimensional region of the second information code, is obtained from the learning model. The information recorded in the second information code is read based on the acquired second relationship information, thus reading results being outputted.Type: ApplicationFiled: March 31, 2022Publication date: May 30, 2024Applicant: DENSO WAVE INCORPORATEDInventors: Kentaro SASAKI, Koji KONOSU, Yuichi ITO, Yosuke KANBE, Takeshi FUJISUMI, Yoshihiro YAMAZAKI, Ryohei KAGAMI
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Patent number: 11985907Abstract: According to one embodiment, a magnetic memory device includes a magnetoresistance effect element including first and second magnetic layers each having a fixed magnetization direction, a third magnetic layer provided between the first and second magnetic layers, and having a variable magnetization direction, a first nonmagnetic layer between the first and third magnetic layers, and a second nonmagnetic layer between the second and third magnetic layers, and a switching element connected in series to the magnetoresistance effect element, changing from an electrically nonconductive state to an electrically conductive state when a voltage applied between two terminals is higher than or equal to a threshold voltage.Type: GrantFiled: March 15, 2021Date of Patent: May 14, 2024Assignee: Kioxia CorporationInventors: Shogo Itai, Tadaomi Daibou, Yuichi Ito, Katsuyoshi Komatsu
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Patent number: 11963459Abstract: A switching device according to an embodiment includes a switching layer disposed between a first electrode and a second electrode. The switching layer contains a material containing a first cation element Z, Te, and N. This material contains at least 5 atomic % or more of each of Z, Te, and N, and when an atomic ratio of Te is X, an atomic ratio of N is Y, an atomic ratio of Z is W, a ratio of Z2Te3 to ZN on a straight line connecting a compound of the first cation element Z with tellurium and nitride of the first cation element Z in a ternary phase diagram of Z, Te, and N is A, and a change in an N content from the Z2Te3—ZN line is B, the material has a composition satisfying X=1.2 (1?A) (0.5+B), Y=A (0.5+B), and W=1?X?Y, where ?0.06?B?0.06 is satisfied when ?>A and ¾<A, and ?0.06?B and Y?0.45 are satisfied when ??A?¾.Type: GrantFiled: September 8, 2021Date of Patent: April 16, 2024Assignee: Kioxia CorporationInventors: Hiroshi Takehira, Katsuyoshi Komatsu, Tadaomi Daibou, Hiroki Kawai, Yuichi Ito
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Publication number: 20240077366Abstract: A semiconductor device includes an integrated circuit having a first resistor configuring a voltage divider circuit, a sensing resistor configured to measure a sheet resistance having a same attribute as that of the first resistor, a temperature detection circuit configured to detect a value of a first temperature, a storage circuit configured to store a table including first information for each of a plurality of values of the first temperatures, the first information corresponding to a sheet resistance of the first resistor obtained based on a result of measurement of the sensing resistor, and indicating a relationship between a second temperature and a divided voltage of the voltage divider circuit at the second temperature, and an arithmetic circuit configured to obtain the second temperature, based on the first information at the value of the first temperature detected by the temperature detection circuit and the divided voltage.Type: ApplicationFiled: July 24, 2023Publication date: March 7, 2024Applicant: FUJI ELECTRIC CO., LTD.Inventors: Yuichi ITO, Kazuhiro MATSUNAMI
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Publication number: 20240074327Abstract: According to one embodiment, a magnetic memory device includes: a first interconnect; a second interconnect; a first switching element provided on the first interconnect; a second switching element provided on the second interconnect; a first insulating layer provided surrounding the first switching element; a second insulating layer surrounding the second switching element and not being in contact with the first insulating layer; a first conductor provided on the first switching element and the first insulating layer; a second conductor provided on the second switching element and the second insulating layer; a first magnetoresistive effect element provided on the first conductor; and a second magnetoresistive effect element provided on the second conductor.Type: ApplicationFiled: June 12, 2023Publication date: February 29, 2024Applicant: Kioxia CorporationInventors: Taichi IGARASHI, Yuichi ITO, Eiji KITAGAWA, Masayoshi IWAYAMA
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Publication number: 20240036102Abstract: This anisotropic conductive sheet (10) comprises: an insulating layer (11) having a first surface located on one side in the thickness direction, a second surface located on the other side, and a plurality of through holes (12) penetrating between the first surface and the second surface; a plurality of conductive layers (22) continuously arranged at the inner wall surface of the through holes in each of at least some of the plurality of through holes and around the openings of the through holes on the first surface; and a plurality of first grooves (14) that are arranged between the plurality of conductive layers on the first surface to insulate the conductive layers from each other, wherein the center of gravity (C2) of the opening of each through hole is set apart from the center of gravity (C1) of the respective conductive layer on the first surface.Type: ApplicationFiled: November 30, 2021Publication date: February 1, 2024Inventors: Katsunori NISHIURA, Daisuke YAMADA, Yuichi ITO
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Publication number: 20240011856Abstract: Provided is a pressure detection device including: a semiconductor substrate having an upper surface; a bulk region of a first conductivity type provided in the semiconductor substrate; a piezo-resistive region of the first conductivity type provided between the bulk region and the upper surface of the semiconductor substrate; a first well region of a second conductivity type provided between the piezo-resistive region and the bulk region; and a first low-concentration region of the second conductivity type provided between the first well region and the bulk region and having a lower concentration than the first well region.Type: ApplicationFiled: May 24, 2023Publication date: January 11, 2024Inventors: Yuichi ITO, Mutsuo NISHIKAWA
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Publication number: 20230301195Abstract: According to one embodiment, a magnetic memory device includes a magnetoresistance effect element portion, a switching element portion provided on a lower layer side of the magnetoresistance effect element portion, a buffer insulating portion provided between the magnetoresistance effect element portion and the switching element portion, and a conductive portion surrounding a side surface of the buffer insulating portion and electrically connecting the magnetoresistance effect element portion and the switching element portion to each other.Type: ApplicationFiled: September 13, 2022Publication date: September 21, 2023Applicant: Kioxia CorporationInventor: Yuichi ITO
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Publication number: 20230301205Abstract: According to one embodiment, a switching element includes a first electrode, a second electrode, and a switching material layer provided between the first electrode and the second electrode. The switching material layer contains silicon (Si), oxygen (O), arsenic (As), and a predetermined element selected from lead (Pb), silver (Ag), indium (In), tin (Sn), copper (Cu), zinc (Zn), gallium (Ga), germanium (Ge), selenium (Se), antimony (Sb), tellurium (Te), gold (Au) and bismuth (Bi).Type: ApplicationFiled: September 13, 2022Publication date: September 21, 2023Applicant: Kioxia CorporationInventors: Taichi IGARASHI, Yuichi ITO, Eiji KITAGAWA
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Publication number: 20230194466Abstract: The present invention appropriately determines a time to replace a responsive glass membrane for measuring a sample containing hydrofluoric acid. A measurement device for measuring a hydrogen ion concentration of a liquid sample containing hydrofluoric acid, the measurement device including a glass electrode that measures a hydrogen ion concentration in the liquid sample, the glass electrode including a responsive glass membrane, a membrane resistance measurement unit that measures a membrane resistance value of the responsive glass membrane, a temperature measurement unit that measures a temperature of an environment in which the responsive glass membrane is disposed, and an output unit that outputs a replacement index for replacing the responsive glass membrane based on the membrane resistance value and the temperature.Type: ApplicationFiled: April 9, 2021Publication date: June 22, 2023Inventors: Takamasa KINOSHITA, Yuichi ITO, Yuji NISHIO
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Patent number: 11657244Abstract: A system contributing to prevention of unauthorized use of an information code displayed on a screen. In the system, an information code display device cyclically displays a plurality of partial code images on a display screen of a display unit based on a first rule when the first rule is received from a server in response to a first request to the server. Accordingly, an information code reading device captures images of the display screen at imaging intervals according to a second rule which is received from the server by in response to a second request to the server to decode an information code composed of the plurality of images thus captured, according to the second rule.Type: GrantFiled: September 1, 2020Date of Patent: May 23, 2023Assignee: DENSO WAVE INCORPORATEDInventors: Tomohito Suzuki, Yuichi Ito, Ryohei Kagami, Koji Konosu
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Publication number: 20230083008Abstract: According to one embodiment, a memory device includes a memory cell including a magnetoresistive effect element. The magnetoresistive effect element includes a non-magnetic layer between first and second electrodes in the first direction, a first magnetic layer between the first electrode and the non-magnetic layer, a second magnetic layer between the second electrode and the non-magnetic layer, and a first layer between the second electrode and the second magnetic layer. The first layer includes oxygen and at least one selected from magnesium, transition metal, and lanthanoid, the first layer has a first size in the first direction, the non-magnetic layer has a second size in the first direction. The first size is 1.1 times or more and 2 times or less the second size.Type: ApplicationFiled: December 14, 2021Publication date: March 16, 2023Applicant: Kioxia CorporationInventors: Taichi IGARASHI, Yuichi ITO, Eiji KITAGWA, Taiga ISODA