Patents by Inventor Yutaka Ishii
Yutaka Ishii 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: 11989954Abstract: An occupant state detection system includes first and second occupant monitoring apparatuses, a determination apparatus, and an occupant state detection apparatus. The first and second occupant monitoring apparatuses monitor a physical state of an occupant in a vehicle in different methods. The occupant state detection apparatus includes one or more first processors and one or more first memories. Upon receiving data indicating that the vehicle is in a stopped state from the determination apparatus, the one or more first processors cooperate with one or more programs in the one or more first memories to: make assignment of a part to be monitored and data to be acquired, of the occupant in the vehicle, to be detected by the first and second occupant monitoring apparatuses; and detect the physical state of the occupant on the basis of first and second occupant monitoring data from the first and second occupant monitoring apparatuses.Type: GrantFiled: March 18, 2022Date of Patent: May 21, 2024Assignee: SUBARU CORPORATIONInventors: Ryota Nakamura, Tsukasa Mikuni, Takuya Homma, Yutaka Ishii, Masatoshi Tsuge, Kazuhiro Hayakawa, Toru Kato
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Patent number: 11904264Abstract: A method for producing a honeycomb structure for fine particle collection filters, the honeycomb structure including a plurality of porous honeycomb structure segments. The method includes joining each of the porous honeycomb segments via a joining material layers by applying a joining material between joining surfaces of each of the porous honeycomb structure segments, through a nozzle portion of a joining material applicator. The nozzle portion of the joining material applicator includes: a joining material introduction port; a joining material discharge space; and a joining material flow path having a bent portion, through which the joining material passes from the joining material introduction port to the joining material discharge space. The joining material flow path of the nozzle portion includes a buffer space configured such that a flow path cross section gradually expands toward the joining material discharge space on a downstream side of the bent portion.Type: GrantFiled: March 9, 2020Date of Patent: February 20, 2024Assignee: NGK INSULATORS, LTD.Inventors: Jun Inoue, Yutaka Ishii, Toshiharu Tsutsumi
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Patent number: 11750775Abstract: An occupant state detection system includes an occupant monitoring apparatus, a determination apparatus, and an occupant state detection apparatus. The occupant state detection apparatus includes one or more processors and one or more memories. The one or more memories store data including traveling-state comparative data and stopped-state comparative data. The one or more processors cooperate with one or more programs included in the one or more memories to receive occupant monitoring data from the occupant monitoring apparatus and determination data from the determination apparatus. On the basis of the determination data, the one or more processors compare the occupant monitoring data with the traveling-state comparative data on the condition that the vehicle is in the traveling state, and compare the occupant monitoring data with the stopped-state comparative data on the condition that the vehicle is in the stopped state, to detect a state of the occupant in the vehicle.Type: GrantFiled: March 18, 2022Date of Patent: September 5, 2023Assignee: SUBARU CORPORATIONInventors: Ryota Nakamura, Tsukasa Mikuni, Takuya Homma, Yutaka Ishii, Masatoshi Tsuge, Kazuhiro Hayakawa, Toru Kato
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Patent number: 11662293Abstract: An inspection method for a pillar-shaped honeycomb filter having a honeycomb-shaped first end face and a honeycomb-shaped second end face, including: allowing gas containing fine particles to flow into the first end face; imaging the entire second end face covered with the sheet-like light using a camera while the gas that has flowed into the first end face flows out of the second end face through the filter, and generating an image of the entire second end face covered with the sheet-like light; selecting an inspection area of the second end face and measuring information concerning a sum of luminance of all pixels in the inspection area; and determining quality of the filter based on at least the information concerning the concentration of the fine particles in the gas before the gas flows into the first end face and the information concerning the sum of luminance.Type: GrantFiled: February 25, 2021Date of Patent: May 30, 2023Assignee: NGK INSULATORS, LTD.Inventors: Yoshihiro Sato, Takakazu Koyama, Yuji Watanabe, Yutaka Ishii, Takaaki Kanemitsu, Makoto Murai, Masanari Iwade, Takafumi Terahai, Ryota Kurahashi, Akinari Fukaya, Kenji Ebisutani
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Patent number: 11612844Abstract: A pillar-shaped honeycomb structure including a plurality of first cells extending from an inlet side end surface to an outlet side end surface, and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, with a porous partition wall interposed therebetween, wherein a porous film having a porosity higher than that of the partition walls is provided on a surface of each of the first cells, and at a cross-section orthogonal to the direction in which the first cells of the pillar-shaped honeycomb structure filter extend, the average thickness of the porous film in the central portion is larger than the average thickness of the porous film in the outer peripheral portion.Type: GrantFiled: February 24, 2022Date of Patent: March 28, 2023Assignee: NGK Insulators, Ltd.Inventors: Yoshihiro Sato, Shuji Ueda, Koichi Sendo, Yutaka Ishii, Yuichi Tajima, Seiya Nakano, Ken Itazu
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Publication number: 20220321835Abstract: An occupant state detection system includes an occupant monitoring apparatus, a determination apparatus, and an occupant state detection apparatus. The occupant state detection apparatus includes one or more processors and one or more memories. The one or more memories store data including traveling-state comparative data and stopped-state comparative data. The one or more processors cooperate with one or more programs included in the one or more memories to receive occupant monitoring data from the occupant monitoring apparatus and determination data from the determination apparatus. On the basis of the determination data, the one or more processors compare the occupant monitoring data with the traveling-state comparative data on the condition that the vehicle is in the traveling state, and compare the occupant monitoring data with the stopped-state comparative data on the condition that the vehicle is in the stopped state, to detect a state of the occupant in the vehicle.Type: ApplicationFiled: March 18, 2022Publication date: October 6, 2022Inventors: Ryota NAKAMURA, Tsukasa MIKUNI, Takuya HOMMA, Yutaka ISHII, Masatoshi TSUGE, Kazuhiro HAYAKAWA, Toru KATO
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Publication number: 20220319202Abstract: An occupant state detection system includes first and second occupant monitoring apparatuses, a determination apparatus, and an occupant state detection apparatus. The first and second occupant monitoring apparatuses monitor a physical state of an occupant in a vehicle in different methods. The occupant state detection apparatus includes one or more first processors and one or more first memories. Upon receiving data indicating that the vehicle is in a stopped state from the determination apparatus, the one or more first processors cooperate with one or more programs in the one or more first memories to: make assignment of a part to be monitored and data to be acquired, of the occupant in the vehicle, to be detected by the first and second occupant monitoring apparatuses; and detect the physical state of the occupant on the basis of first and second occupant monitoring data from the first and second occupant monitoring apparatuses.Type: ApplicationFiled: March 18, 2022Publication date: October 6, 2022Inventors: Ryota NAKAMURA, Tsukasa MIKUNI, Takuya HOMMA, Yutaka ISHII, Masatoshi TSUGE, Kazuhiro HAYAKAWA, Toru KATO
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Publication number: 20220315031Abstract: An occupant state detection system includes an occupant monitoring apparatus, an occupant state detection apparatus, and a determination apparatus. The occupant state detection apparatus includes one or more processors and one or more memories. The one or more processors cooperate with one or more programs included in the one or more memories to receive occupant monitoring data from the occupant monitoring apparatus and determination data from the determination apparatus. On the basis of the determination data, the one or more processors make assignment of a part to be monitored, of an occupant in a vehicle, to be monitored by the occupant monitoring apparatus, to detect a physical state of the occupant.Type: ApplicationFiled: March 18, 2022Publication date: October 6, 2022Inventors: Ryota NAKAMURA, Tsukasa MIKUNI, Takuya HOMMA, Yutaka ISHII, Masatoshi TSUGE, Kazuhiro HAYAKAWA, Toru KATO
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Publication number: 20220314250Abstract: A method for manufacturing a pillar-shaped honeycomb structure filter including; attaching ceramic particles to a surface of the first cells by ejecting an aerosol including the ceramic particles toward the inlet side end surface from a direction perpendicular to the inlet side end surface while applying a suction force to the outlet side end surface to suck the ejected aerosol from the inlet side end surface, wherein the ejection of the aerosol is carried out using an aerosol generator including a drive gas flow path for flowing a pressurized drive gas, a supply port provided on the way of the drive gas flow path and capable of sucking the ceramic particles from an outer peripheral side of the drive gas flow path toward an inside of the drive gas flow path, and a nozzle attached to a tip of the drive gas flow path and capable of ejecting the aerosol.Type: ApplicationFiled: January 19, 2022Publication date: October 6, 2022Applicant: NGK INSULATORS, LTD.Inventors: Yoshihiro SATO, Shuji UEDA, Yuichi TAJIMA, Seiya NAKANO, Ken ITAZU, Koichi SENDO, Yutaka ISHII
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Publication number: 20220314154Abstract: A pillar-shaped honeycomb structure including a plurality of first cells extending from an inlet side end surface to an outlet side end surface, and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, with a porous partition wall interposed therebetween, wherein a porous film having a porosity higher than that of the partition walls is provided on a surface of each of the first cells, and at a cross-section orthogonal to the direction in which the first cells of the pillar-shaped honeycomb structure filter extend, the average thickness of the porous film in the central portion is larger than the average thickness of the porous film in the outer peripheral portion.Type: ApplicationFiled: February 24, 2022Publication date: October 6, 2022Applicant: NGK INSULATORS, LTD.Inventors: Yoshihiro SATO, Shuji UEDA, Koichi SENDO, Yutaka ISHII, Yuichi TAJIMA, Seiya NAKANO, Ken ITAZU
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Publication number: 20210302296Abstract: An inspection method for a pillar-shaped honeycomb filter having a honeycomb-shaped first end face and a honeycomb-shaped second end face, including: allowing gas containing fine particles to flow into the first end face; imaging the entire second end face covered with the sheet-like light using a camera while the gas that has flowed into the first end face flows out of the second end face through the filter, and generating an image of the entire second end face covered with the sheet-like light; selecting an inspection area of the second end face and measuring information concerning a sum of luminance of each pixel in the inspection area; and determining quality of the filter based on at least the information concerning the concentration of the fine particles in the gas before the gas flows into the first end face and the information concerning the sum of luminance.Type: ApplicationFiled: February 25, 2021Publication date: September 30, 2021Applicant: NGK INSULATORS, LTD.Inventors: Yoshihiro SATO, Takakazu KOYAMA, Yuji WATANABE, Yutaka ISHII, Takaaki KANEMITSU, Makoto MURAI, Masanari IWADE, Takafumi TERAHAI, Ryota KURAHASHI, Akinari FUKAYA, Kenji EBISUTANI
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Publication number: 20200298155Abstract: A method for producing a honeycomb structure for fine particle collection filters, the honeycomb structure including a plurality of porous honeycomb structure segments. The method includes joining each of the porous honeycomb segments via a joining material layers by applying a joining material between joining surfaces of each of the porous honeycomb structure segments, through a nozzle portion of a joining material applicator. The nozzle portion of the joining material applicator includes: a joining material introduction port; a joining material discharge space; and a joining material flow path having a bent portion, through which the joining material passes from the joining material introduction port to the joining material discharge space. The joining material flow path of the nozzle portion includes a buffer space configured such that a flow path cross section gradually expands toward the joining material discharge space on a downstream side of the bent portion.Type: ApplicationFiled: March 9, 2020Publication date: September 24, 2020Applicant: NGK INSULATORS, LTD.Inventors: Jun Inoue, Yutaka Ishii, Toshiharu Tsutsumi
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Publication number: 20190255475Abstract: A honeycomb segment joined body includes a plurality of honeycomb segments; and joining layers for bonding side surfaces of the plurality of honeycomb segments. Each of the joining layers is a cured product of a pasty joining material, and has a standard deviation of joined widths of 0.30 or less. The honeycomb segment joined body is produced by applying pressurization with vibration when joining side surfaces of a plurality of honeycomb segments using a pasty joining material.Type: ApplicationFiled: February 4, 2019Publication date: August 22, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yutaka ISHII, Yoshihiro SATO, Michio SUZUKI, Yasutaka WATANABE
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Patent number: 10279573Abstract: A manufacturing method of a honeycomb structure includes a forming step of forming a quadrangular pillar-shaped honeycomb formed body, a firing step of firing the honeycomb formed body and forming a quadrangular pillar-shaped honeycomb fired body, a coating step of coating at least a part of side surfaces of the honeycomb fired body with a paste-like bonding material, a honeycomb block body preparing step of bonding the plurality of honeycomb fired bodies while performing pressurizing, to prepare a honeycomb block body, and a circumference grinding step of grinding a circumferential surface of the honeycomb block body and obtaining the honeycomb structure, and in the honeycomb block body preparing step, the bonding is performed without interposing any member other than the bonding material between the honeycomb fired bodies, and the bonding material has a shear thinning property.Type: GrantFiled: October 19, 2016Date of Patent: May 7, 2019Assignee: NGK Insulators, Ltd.Inventors: Yutaka Ishii, Kazunari Akita, Yoshihiro Sato, Masayuki Nate
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Patent number: 9939127Abstract: A lighting device (100) includes: a surface light source (1); a first lens (L1) having a first focal point (F1), the first lens being provided on the light exit surface side of the surface light source; and a second lens (L2) having a second focal point (F2), the second lens being provided on a light exit surface side of the first lens, the surface light source, the first lens, and the second lens being configured such that a first virtual image (I1) is formed by the first lens and a second virtual image (I2) is formed by the second lens, wherein the first virtual image (I1) is formed between the second focal point (F2) and the first lens, and the second focal point (F2) is on a side opposite to the light source side relative to a predetermined focal position f?.Type: GrantFiled: July 26, 2013Date of Patent: April 10, 2018Assignees: Sharp Kabushiki Kaisha, TOHOKU UNIVERSITYInventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Takahiro Ishinabe, Katsunori Ehara, Yoshihiro Hashimoto, Toshiki Matsuoka, Kozo Nakamura, Yasuhisa Itoh, Yoshitaka Yamamoto, Yutaka Ishii, David Montgomery
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Publication number: 20170036432Abstract: A manufacturing method of a honeycomb structure includes a forming step of forming a quadrangular pillar-shaped honeycomb formed body, a firing step of firing the honeycomb formed body and forming a quadrangular pillar-shaped honeycomb fired body, a coating step of coating at least a part of side surfaces of the honeycomb fired body with a paste-like bonding material, a honeycomb block body preparing step of bonding the plurality of honeycomb fired bodies while performing pressurizing, to prepare a honeycomb block body, and a circumference grinding step of grinding a circumferential surface of the honeycomb block body and obtaining the honeycomb structure, and in the honeycomb block body preparing step, the bonding is performed without interposing any member other than the bonding material between the honeycomb fired bodies, and the bonding material has a shear thinning property.Type: ApplicationFiled: October 19, 2016Publication date: February 9, 2017Applicant: NGK INSULATORS, LTD.Inventors: Yutaka ISHII, Kazunari AKITA, Yoshihiro SATO, Masayuki NATE
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Patent number: 9371254Abstract: The manufacturing method of the honeycomb structure has a forming step of forming a forming raw material into a plurality of quadrangular prismatic honeycomb formed bodies each having partition walls, a firing step of firing the plurality of honeycomb formed bodies to form a plurality of quadrangular prismatic honeycomb fired bodies, a sheet-like bonding material attaching step of attaching sheet-like bonding materials to at least part of side surfaces of at least part of the plurality of honeycomb fired bodies, a honeycomb block body preparing step of preparing a honeycomb block body in which the plurality of honeycomb fired bodies are stacked, by assembling the plurality of quadrangular prismatic honeycomb fired bodies while bonding the side surfaces thereof to one another by the bonding materials, and a grinding step of grinding a circumferential portion of the honeycomb block body to obtain the honeycomb structure.Type: GrantFiled: February 10, 2015Date of Patent: June 21, 2016Assignee: NGK Insulators, Ltd.Inventors: Yutaka Ishii, Kazunari Akita, Yoshihiro Sato, Masayuki Nate
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Patent number: 9310619Abstract: To provide a thin optical sheet having improved efficiency for light utilization, an optical sheet (5) of one mode of the present invention includes, in sequence from a light entry side to a light emission side, a plurality of first prisms (13), a ΒΌ wavelength plate (11), and a polarized-light separating element (12), the plurality of first prisms (13) each having (i) a first surface (13a) through which light enters the first prism and (ii) a second surface (13b) that reflects the light, having entered the first prism, toward the light emission side, the optical film further including, between the plurality of first prisms in an in-plane direction of the optical film, a second prism (14) that reflects light.Type: GrantFiled: February 15, 2013Date of Patent: April 12, 2016Assignees: Sharp Kabushiki Kaisha, Tohoku UniversityInventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Kazuo Sekiya, Masahiro Nishizawa, Takahiro Ishinabe, Katsunori Ehara, Yoshihiro Hashimoto, Yasuhisa Itoh, Yoshitaka Yamamoto, Yutaka Ishii
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Patent number: 9217552Abstract: A lighting device (100) includes: a surface light source (1); a first lens (L1) having a first focal point (F1), the first lens being provided on the light exit surface side of the surface light source; and a second lens (L2) having a second focal point (F2), the second lens being provided on a light exit surface side of the first lens, the surface light source, the first lens, and the second lens being configured such that a first virtual image (I1) is formed by the first lens and a second virtual image (I2) is formed by the second lens, wherein the first virtual image (I1) is formed between the second focal point (F2) and the first lens, the second focal point (F2) is on a side opposite to the light source side relative to a predetermined focal position f?, and at least either of a light entry surface or a light exit surface of the first lens or the second lens includes a non-revolution surface (SO) as a lens surface, and a plurality of boundary lines (B1-B4) whose curvatures vary discontinuously are providType: GrantFiled: July 2, 2013Date of Patent: December 22, 2015Assignees: Sharp Kabushiki Kaisha, Tohoku UniversityInventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Takahiro Ishinabe, Katsunori Ehara, Yoshihiro Hashimoto, Toshiki Matsuoka, Kozo Nakamura, Yasuhisa Itoh, Yoshitaka Yamamoto, Yutaka Ishii
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Publication number: 20150274602Abstract: The manufacturing method of the honeycomb structure has a forming step of forming a forming raw material into a plurality of quadrangular prismatic honeycomb formed bodies each having partition walls, a firing step of firing the plurality of honeycomb formed bodies to form a plurality of quadrangular prismatic honeycomb fired bodies, a sheet-like bonding material attaching step of attaching sheet-like bonding materials to at least part of side surfaces of at least part of the plurality of honeycomb fired bodies, a honeycomb block body preparing step of preparing a honeycomb block body in which the plurality of honeycomb fired bodies are stacked, by assembling the plurality of quadrangular prismatic honeycomb fired bodies while bonding the side surfaces thereof to one another by the bonding materials, and a grinding step of grinding a circumferential portion of the honeycomb block body to obtain the honeycomb structure.Type: ApplicationFiled: February 10, 2015Publication date: October 1, 2015Inventors: Yutaka ISHII, Kazunari AKITA, Yoshihiro SATO, Masayuki NATE