Patents by Inventor Takayuki Igarashi
Takayuki Igarashi 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: 20240128248Abstract: A semiconductor device includes an insulating substrate and an upper inductor that is formed on the insulating substrate and is a component of a transformer that performs contactless communication between different potentials. Here, the upper inductor is configured to be applied with a first potential. The upper inductor is formed so as to be magnetically coupled to a lower inductor that is configured to be applied with a second potential different from the first potential.Type: ApplicationFiled: August 4, 2023Publication date: April 18, 2024Inventors: Yasutaka NAKASHIBA, Hiroshi MIYAKI, Takayuki IGARASHI
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Publication number: 20240105761Abstract: A semiconductor chip includes a transformer that performs contactless communication between different potentials. The semiconductor chip includes a semiconductor substrate, a semiconductor region formed in an upper surface of the semiconductor substrate, and the transformer formed over the semiconductor substrate. Here, the transformer includes a lower inductor, a lead wiring portion electrically connected to the lower inductor, and an upper inductor 100 magnetically coupled to the lower inductor, and the lead wiring portion has a wiring facing the semiconductor region.Type: ApplicationFiled: July 25, 2023Publication date: March 28, 2024Inventors: Takayuki IGARASHI, Yasutaka NAKASHIBA
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Publication number: 20240096788Abstract: A semiconductor chip includes a lower wiring layer, a multilayer wiring layer formed on the lower wiring layer, and an upper wiring layer formed on the multilayer wiring layer. Here, a thickness of a wiring provided in the lower wiring layer is larger than a thickness of each of a plurality of wirings provided in the multilayer wiring layer, and a thickness of a wiring provided in the upper wiring layer is larger than the thickness of each of the plurality of wirings provided in the multilayer wiring layer. A lower inductor which is a component of a transformer is provided in the lower wiring layer, and an upper inductor which is a component of the transformer is provided in the upper wiring layer.Type: ApplicationFiled: June 29, 2023Publication date: March 21, 2024Inventors: Takayuki IGARASHI, Tatsuo KASAOKA, Yasutaka NAKASHIBA
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Publication number: 20240088332Abstract: A light emitting device includes: a substrate; a light emitting element; a wavelength conversion layer; and a wall surrounding the wavelength conversion layer, having an opening portion exposing at least a part of a top surface of the wavelength conversion layer, and containing a light reflective material. The surface of the wall includes a top surface provided at a higher position than the top surface of the wavelength conversion layer, and an inner surface forming the opening portion. The wall includes a first portion surrounding the wavelength conversion layer, and a second portion provided over the first portion and surrounding the first portion. The opening portion is hollow. An angle of a corner portion between the top surface and the inner surface of the wall is in a range of 90 degrees or greater and less than 180 degrees.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Hiroshi MIYAIRI, Yoshimi KATSUMOTO, Takayuki IGARASHI, Yoshifumi HODONO, Shinya ENDO
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Patent number: 11926323Abstract: A vehicle controller includes: an engine controller configured to perform an IS control upon satisfaction of a predetermined stop condition and an engine restart control upon satisfaction of a predetermined restart condition; an HDC controller configured to perform, when the vehicle is traveling on a downhill road and a deceleration request according to an HDC control occurs, a target vehicle speed-based deceleration irrespective of brake operations by the driver; and an information acquisition part configured to acquire progress status information related to the engine restart control and including information on initiation and completion thereof.Type: GrantFiled: December 1, 2021Date of Patent: March 12, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Takahito Yoshida, Yoshinari Sugita, Rei Okubo, Hidetoshi Kobori, Shumpei Tahara, Shun Igarashi, Takuya Sato, Takayuki Matsuyoshi
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Publication number: 20240014067Abstract: A semiconductor device having a semiconductor substrate, a BOX film on the semiconductor substrate, a semiconductor layer on the BOX film, a first trench penetrated through the semiconductor layer and reached to the first insulating film, a first insulating film covering a side surface of the first trench and in contact with an upper surface of the BOX film at a bottom of the first trench, a second trench formed at the bottom of the first trench such that the second trench penetrates through the first insulating film and reached in the BOX film, a second insulating film filled in the first trench and the second trench. A bottom surface of the second trench is located in the BOX film below an interface between the semiconductor layer and the BOX film, and a void is located in the second insulating film at the same height the interface.Type: ApplicationFiled: May 17, 2023Publication date: January 11, 2024Inventors: Hiroyuki ARIE, Takayuki IGARASHI
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Patent number: 11862760Abstract: A light emitting device includes: a substrate; a light emitting element; a wavelength conversion layer; and a wall surrounding the wavelength conversion layer, having an opening portion exposing at least a part of a top surface of the wavelength conversion layer, and containing a light reflective material. The surface of the wall includes a top surface provided at a higher position than the top surface of the wavelength conversion layer, and an inner surface forming the opening portion. The wall includes a first portion surrounding the wavelength conversion layer, and a second portion provided over the first portion and surrounding the first portion. The opening portion is hollow. An angle of a corner portion between the top surface and the inner surface of the wall is in a range of 90 degrees or greater and less than 180 degrees.Type: GrantFiled: January 21, 2021Date of Patent: January 2, 2024Assignee: NICHIA CORPORATIONInventors: Hiroshi Miyairi, Yoshimi Katsumoto, Takayuki Igarashi, Yoshifumi Hodono, Shinya Endo
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Publication number: 20230335487Abstract: An inductor to which a first potential is applied is surrounded by a first wiring connected with the inductor, and a pad connected with a second wiring, to which a second potential different from the first potential is applied, is disposed outside the second wiring such that the first wiring is surrounded by the second wiring.Type: ApplicationFiled: February 27, 2023Publication date: October 19, 2023Inventors: Yasutaka NAKASHIBA, Takayuki IGARASHI
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Publication number: 20230228671Abstract: A rectangular cell is a bottomed rectangular cell mounted in a photometric analyzer, and has an opening at a top end face for accommodating a test sample to be analyzed. The rectangular cell has a low flat area that is lower than an upper flat area on an inner face on a lower side of an outer face of a wall surface through which a measurement light from the analyzer is transmitted when the rectangular cell is mounted in the analyzer. This low area extends substantially over the entire width in the horizontal direction. When the rectangular cell is mounted in a recess in the photometric analyzer, an area through which the measurement light passes in the rectangular cell is not damaged by dust, even if fine hard dust adheres to the side surface of the recess. Further, the low region can have a mirror-finished surface by polishing.Type: ApplicationFiled: October 15, 2019Publication date: July 20, 2023Inventors: Kenji YUASA, Takayuki IGARASHI
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Patent number: 11670743Abstract: A light emitting device includes: a substrate; a plurality of light emitting elements mounted on the substrate; a covering member disposed on the substrate between adjacent ones of the light emitting elements such that an upper surface of the covering member is substantially coplanar with upper surfaces of the light emitting elements, wherein the covering member is a molded body containing an inorganic material powder and a binder; and a light transmissive member disposed on or above the plurality of light emitting elements.Type: GrantFiled: August 7, 2020Date of Patent: June 6, 2023Assignee: NICHIA CORPORATIONInventor: Takayuki Igarashi
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Publication number: 20230072941Abstract: A light-emitting device includes a substrate, a light-emitting element provided on the substrate, the light-emitting element being configured to emit a first light, a wavelength conversion layer provided on the light-emitting element and containing a plurality of wavelength conversion particles configured to convert a wavelength of a part of the first light and to emit a second light, a light-transmissive plate provided above the wavelength conversion layer, and a wall including a light-reflective material, the wall surrounding the wavelength conversion layer and the light-transmissive plate and being in contact with a lateral surface of the light-transmissive plate at an inner surface of the wall. An upper portion of the wavelength conversion layer includes protrusions and recesses defined by the plurality of wavelength conversion particles. The wavelength conversion layer and the light-transmissive plate define an air layer therebetween.Type: ApplicationFiled: February 5, 2021Publication date: March 9, 2023Inventors: Hiroshi MIYAIRI, Takayuki IGARASHI, Shinya ENDO, Yoshifumi HODONO, Yoshimi KATSUMOTO
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Patent number: 11562989Abstract: A light-emitting device includes: a substrate; a plurality of light-emitting elements mounted to the substrate; and a phosphor layer provided on the plurality of light-emitting elements, the phosphor layer including: a plurality of phosphor particles, and a glass layer covering surfaces of the phosphor particles, wherein the phosphor particles are bonded to each other by the glass layer, and an air layer is formed between the phosphor particles.Type: GrantFiled: September 24, 2019Date of Patent: January 24, 2023Assignee: NICHIA CORPORATIONInventor: Takayuki Igarashi
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Publication number: 20230010383Abstract: A semiconductor device including an element isolation in a trench formed in an upper surface of a semiconductor substrate, a trench isolation including a void in a trench directly under the element isolation, and a Cu wire with Cu ball connected to a pad on the semiconductor substrate, is formed. The semiconductor device has a circular trench isolation arrangement prohibition region that overlaps the end portion of the Cu ball in plan view, and the trench isolation is separated from the trench isolation arrangement prohibition region in plan view.Type: ApplicationFiled: June 8, 2022Publication date: January 12, 2023Inventors: Takayuki IGARASHI, Hirokazu SAYAMA
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Publication number: 20210265536Abstract: A light emitting device includes: a substrate; a light emitting element; a wavelength conversion layer; and a wall surrounding the wavelength conversion layer, having an opening portion exposing at least a part of a top surface of the wavelength conversion layer, and containing a light reflective material. The surface of the wall includes a top surface provided at a higher position than the top surface of the wavelength conversion layer, and an inner surface forming the opening portion. The wall includes a first portion surrounding the wavelength conversion layer, and a second portion provided over the first portion and surrounding the first portion. The opening portion is hollow. An angle of a corner portion between the top surface and the inner surface of the wall is in a range of 90 degrees or greater and less than 180 degrees.Type: ApplicationFiled: January 21, 2021Publication date: August 26, 2021Inventors: Hiroshi MIYAIRI, Yoshimi KATSUMOTO, Takayuki IGARASHI, Yoshifumi HODONO, Shinya ENDO
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Publication number: 20210043810Abstract: A light emitting device includes: a substrate; a plurality of light emitting elements mounted on the substrate; a covering member disposed on the substrate between adjacent ones of the light emitting elements such that an upper surface of the covering member is substantially coplanar with upper surfaces of the light emitting elements, wherein the covering member is a molded body containing an inorganic material powder and a binder; and a light transmissive member disposed on or above the plurality of light emitting elements.Type: ApplicationFiled: August 7, 2020Publication date: February 11, 2021Applicant: NICHIA CORPORATIONInventor: Takayuki IGARASHI
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Patent number: 10916500Abstract: Reliability of a semiconductor device is improved. The semiconductor device includes a silicon pattern for a fuse element, a metal silicide layer formed on an upper surface and a side surface of the silicon pattern, a gate electrode for MISFET, and a metal silicide layer formed on an upper surface of the gate electrode. The height from the lower surface of the silicon pattern to the lower end of the metal silicide layer is lower than the height from the lower surface of the gate electrode to the lower end of the metal silicide layer.Type: GrantFiled: July 26, 2019Date of Patent: February 9, 2021Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Tomohiko Aika, Takayuki Igarashi, Takehiro Ochi
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Publication number: 20200098733Abstract: A light-emitting device includes: a substrate; a plurality of light-emitting elements mounted to the substrate; and a phosphor layer provided on the plurality of light-emitting elements, the phosphor layer including: a plurality of phosphor particles, and a glass layer covering surfaces of the phosphor particles, wherein the phosphor particles are bonded to each other by the glass layer, and an air layer is formed between the phosphor particles.Type: ApplicationFiled: September 24, 2019Publication date: March 26, 2020Applicant: NICHIA CORPORATIONInventor: Takayuki IGARASHI
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Publication number: 20200051913Abstract: Reliability of a semiconductor device is improved. The semiconductor device includes a silicon pattern for a fuse element, a metal silicide layer formed on an upper surface and a side surface of the silicon pattern, a gate electrode for MISFET, and a metal silicide layer formed on an upper surface of the gate electrode. The height from the lower surface of the silicon pattern to the lower end of the metal silicide layer is lower than the height from the lower surface of the gate electrode to the lower end of the metal silicide layer.Type: ApplicationFiled: July 26, 2019Publication date: February 13, 2020Inventors: Tomohiko AIKA, Takayuki IGARASHI, Takehiro OCHI
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Patent number: 10483199Abstract: Characteristics of a semiconductor device are improved. A semiconductor device includes a coil CL1 and a wiring M2 formed on an interlayer insulator IL2, a wiring M3 formed on an interlayer insulator IL3, and a coil CL2 and a wiring M4 formed on the interlayer insulator IL4. Moreover, a distance DM4 between the coil CL2 and the wiring M4 is longer than a distance DM3 between the coil CL2 and the wiring M3 (DM4>DM3). Furthermore, the distance DM3 between the coil CL2 and the wiring M3 is set to be longer than a sum of a film thickness of the interlayer insulator IL3 and a film thickness of the interlayer insulator IL4, which are positioned between the coil CL1 and the coil CL2. In this manner, it is possible to improve an insulation withstand voltage between the coil CL2 and the wiring M4 or the like, where a high voltage difference tend to occur.Type: GrantFiled: July 30, 2018Date of Patent: November 19, 2019Assignee: Renesas Electronics CorporationInventors: Takayuki Igarashi, Takuo Funaya
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Patent number: 10176985Abstract: The method includes the steps of: storing slurry containing optical matter particles into a slurry tank; stirring the slurry inside the slurry tank by causing a bubble producing unit arranged below a liquid surface of the slurry to produce bubbles; and spraying the slurry onto a coating target including a light emitting element from a nozzle arranged above the coating target.Type: GrantFiled: December 26, 2017Date of Patent: January 8, 2019Assignees: NICHIA CORPORATION, MTEK-SMART CORPORATIONInventors: Takayuki Igarashi, Masafumi Matsunaga