Patents by Inventor Junpei Fujiwara
Junpei Fujiwara 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: 11938931Abstract: A stop assist system for moving a moving body to a stop position and making the moving body stop at the stop position includes: an external environment recognizing unit that recognizes an external environment of the moving body; and a moving body control unit that executes a driving process to make the moving body travel to the stop position based on a recognition result of the external environment recognizing unit. The moving body control unit suspends the driving process when, while the moving body is traveling to the stop position, the moving body control unit determines, based on the recognition result, that there is an object within a range of a prescribed lateral threshold value on a lateral outside of the moving body and the object extends over a prescribed longitudinal threshold value or more along a travel direction within the range.Type: GrantFiled: February 18, 2022Date of Patent: March 26, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Junpei Noguchi, Gaku Shimamoto, Takuma Sekino, Tatsuro Fujiwara, Akiko Nakamura, Kazuya Kobayashi, Masafumi Sagara, Takeshi Sasajima
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Patent number: 11904518Abstract: [Problem] The objective of the present invention is to provide a sheet expressing a good tactile sensation and a molded product thereof. [Solution] A sheet expressing a good tactile sensation and a molded product thereof are provided by configuring a thermoplastic resin sheet having a base layer and hairlike bodies arranged regularly on at least one surface thereof, wherein a continuous phase is formed without a structural boundary between the base layer and the hairlike bodies.Type: GrantFiled: July 20, 2017Date of Patent: February 20, 2024Assignee: Denka Company LimitedInventors: Junpei Fujiwara, Yasushi Hirokawa, Tomohiro Osawa
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Patent number: 11701874Abstract: A layered sheet has a substrate layer and surface layers provided on both surfaces of the substrate layer, wherein the surface layers contain 50 to 90 mass % of component (A) defined below and 10 to 50 mass % of component (B) defined below relative to the overall mass of the surface layer; the substrate layer is composed of a vinyl aromatic hydrocarbon resin composition containing monomer units derived from conjugated dienes; and a percentage of the monomer units derived from the conjugated dienes in the substrate layer is 6 to 14 mass % relative to all monomer units in the vinyl aromatic hydrocarbon-based resin composition. Component (A) is a rubber-modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer in which the percentage of a conjugated diene rubber component is 5 to 25 mass %. Component (B) is a polymeric antistatic agent.Type: GrantFiled: April 16, 2020Date of Patent: July 18, 2023Assignee: DENKA COMPANY LIMITEDInventors: Ryosuke Yanaka, Junpei Fujiwara
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Patent number: 11623424Abstract: A sheet expressing a good tactile sensation and a molded product thereof. By configuring a resin sheet including hairlike bodies arranged regularly on at least one surface of an underlayer in which a continuous phase is formed without any structural boundary between the underlayer and the hairlike bodies, and the underlayer and the hairlike bodies have at least partially a crosslinked structure, a molded product expressing a good tactile sensation is obtained.Type: GrantFiled: September 5, 2018Date of Patent: April 11, 2023Assignee: DENKA COMPANY LIMITEDInventors: Junpei Fujiwara, Shogo Hoshino
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Publication number: 20230084488Abstract: A layered sheet 10 includes a substrate layer 1, and surface layers 2 and 3 configured to be layered on at least one surface of the substrate layer 1. The substrate layer 1 contains a first thermoplastic resin and inorganic fillers. The surface layers 2 and 3 contain a second thermoplastic resin and a conductive material. A content of the inorganic fillers in the substrate layer 1 is 0.3 to 28 mass % based on a total amount of the substrate layer.Type: ApplicationFiled: March 8, 2021Publication date: March 16, 2023Applicant: DENKA COMPANY LIMITEDInventors: Yuko FUKUDA, Junpei FUJIWARA, Ryosuke YANAKA
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Publication number: 20220194067Abstract: A layered sheet has a substrate layer and surface layers provided on both surfaces of the substrate layer, wherein the surface layers contain 50 to 90 mass % of component (A) defined below and 10 to 50 mass % of component (B) defined below relative to the overall mass of the surface layer; the substrate layer is composed of a vinyl aromatic hydrocarbon resin composition containing monomer units derived from conjugated dienes; and a percentage of the monomer units derived from the conjugated dienes in the substrate layer is 6 to 14 mass % relative to all monomer units in the vinyl aromatic hydrocarbon-based resin composition. Component (A) is a rubber-modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer in which the percentage of a conjugated diene rubber component is 5 to 25 mass %. Component (B) is a polymeric antistatic agent.Type: ApplicationFiled: April 16, 2020Publication date: June 23, 2022Applicant: DENKA COMPANY LIMITEDInventors: Ryosuke YANAKA, Junpei FUJIWARA
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Publication number: 20210130653Abstract: [Problem] The present invention is to provide: a film which is excellent in film moldability, is also excellent in heat resistance and transparency, and has a small shrinkage factor and a small heating weight loss ratio even under a high-temperature atmosphere; and a heat-resistant adhesive tape comprising the same. [Solution] A multilayer film having alternately laminated therein one or more layers of each of a substrate layer (A) comprising a sulfone-based resin having a glass transition temperature of 200° C. or more and an adhesive layer (B) comprising a thermoplastic resin having a glass transition temperature of 190° C. or more, and a multilayer film excellent in film moldability, heat resistance, and transparency is obtained due to at least one outermost layer of the multilayer film comprising the adhesive layer (B) and the arithmetic mean surface roughness Ra of a surface of at least one outermost layer of the multilayer film being greater than 0.1 ?m and less than 10.0 ?m.Type: ApplicationFiled: April 2, 2018Publication date: May 6, 2021Applicant: DENKA COMPANY LIMITEDInventors: Junpei Fujiwara, Takayuki IWASAKI, Yasushi HIROKAWA
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Publication number: 20200368956Abstract: A resin sheet having hairlike bodies arranged regularly on at least one surface of an underlayer can be manufactured by forming the bodies by: melt extruding, from a die with an extrusion molding method, a thermoplastic resin having, on a log-log graph having elongational viscosity ?(t) (unit: Pa·S) as measured at a strain rate of 0.5 (unit: S?1) and at a temperature at which elongation is possible as the vertical axis and elongation time t (unit: S) as the horizontal axis, a region in which the slope (log ?/log t) in the interval 0.1<t<1.0 is no greater than 0.5 and by the temperature range wherein the adhesive force in probe tack measurement is 0.05-0.25 N/mm2 at least partially overlapping with the temperature at which elongation is possible; and casting using a transfer roll on which a relief process has been performed and a touch roll.Type: ApplicationFiled: January 23, 2019Publication date: November 26, 2020Applicant: DENKA COMPANY LIMITEDInventors: Keishi MAEDA, Junpei FUJIWARA
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Publication number: 20200215787Abstract: A sheet expressing a good tactile sensation and a molded product thereof. By configuring a resin sheet including hairlike bodies arranged regularly on at least one surface of an underlayer in which a continuous phase is formed without any structural boundary between the underlayer and the hairlike bodies, and the underlayer and the hairlike bodies have at least partially a crosslinked structure, a molded product expressing a good tactile sensation is obtained.Type: ApplicationFiled: September 5, 2018Publication date: July 9, 2020Applicant: DENKA COMPANY LIMITEDInventors: Junpei FUJIWARA, Shogo HOSHINO
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Publication number: 20190283301Abstract: [Problem] The objective of the present invention is to provide a sheet expressing a good tactile sensation and a molded product thereof. [Solution] A sheet expressing a good tactile sensation and a molded product thereof are provided by configuring a thermoplastic resin sheet having a base layer and hairlike bodies arranged regularly on at least one surface thereof, wherein a continuous phase is formed without a structural boundary between the base layer and the hairlike bodies.Type: ApplicationFiled: July 20, 2017Publication date: September 19, 2019Applicant: Denka Company LimitedInventors: Junpei FUJIWARA, Yasushi HIROKAWA, Tomohiro OSAWA
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Patent number: 10202506Abstract: Disclosed is an electronic component packaging sheet including a surface conductive layer formed on the surface of at least one side of a substrate sheet. The substrate sheet includes (A) 80,000 to 220,000 Mw of a styrene-conjugated diene block copolymer; (B) 200,000 to 400,000 Mw of a polystyrene resin; and (C) 150,000 to 210,000 Mw of an impact resistant polystyrene resin. The surface conductive layer includes (D) an acrylic copolymer resin; and (E) a polythiophene type polymer, particularly a polythiophene type polymer/anionic polymer ion complex. The electronic component packaging sheet is a transparent conductive sheet having excellent thermoforming properties, good transparency after thermoforming, and sufficient electrostatic diffusion performance to maintain a low surface resistance value. The electronic component packaging sheet is particularly suited for the manufacture of embossed carrier tape.Type: GrantFiled: October 6, 2011Date of Patent: February 12, 2019Assignee: DENKA COMPANY LIMITEDInventors: Junpei Fujiwara, Tomohiro Osawa, Masatoshi Kawata
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Patent number: 10137660Abstract: Provided is a water-repellent, thermoplastic resin sheet provided with a textured layer having a microtexture on one surface side, and a water repellent layer formed with an approximately constant thickness on the aforementioned one surface side of the textured layer, wherein at least the surface region on the one surface side of the textured layer is a cross-linked material which maintains the microtexture even after heated drawing, and the water-repellent layer is formed from an olefin copolymer resin containing hydrophobic oxide particles. Also provided is a molded article, such as a molded container, formed by thermoforming the thermoplastic resin sheet.Type: GrantFiled: July 18, 2013Date of Patent: November 27, 2018Assignee: Denka Company LimitedInventors: Junpei Fujiwara, Tomohiro Osawa, Shogo Hoshino, Toshio Nagano, Atsushi Takei
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Patent number: 9908311Abstract: Provided is a water-repellent, thermoplastic resin sheet including a textured layer which is formed from a polyethylene resin composition comprising a water repellent agent and which has a microscopic texture on one surface side, wherein at least the surface region of the textured layer is a cross-linked material which maintains the microscopic texture even after heated drawing. Also provided is a molded article, such as a molded container, formed by thermoforming the thermoplastic resin sheet.Type: GrantFiled: July 18, 2013Date of Patent: March 6, 2018Assignee: DENKA COMPANY LIMITEDInventors: Junpei Fujiwara, Atsushi Takei, Tomohiro Osawa
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Publication number: 20150314554Abstract: Provided is a water-repellent, thermoplastic resin sheet provided with a textured layer having a microtexture on one surface side, and a water repellent layer formed with an approximately constant thickness on the aforementioned one surface side of the textured layer, wherein at least the surface region on the one surface side of the textured layer is a cross-linked material which maintains the microtexture even after heated drawing, and the water-repellent layer is formed from an olefin copolymer resin containing hydrophobic oxide particles. Also provided is a molded article, such as a molded container, formed by thermoforming the thermoplastic resin sheet.Type: ApplicationFiled: July 18, 2013Publication date: November 5, 2015Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Junpei FUJIWARA, Tomohiro OSAWA, Shogo HOSHINO, Toshio NAGANO, Atsushi TAKEI
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Publication number: 20150306852Abstract: Provided is a water-repellent, thermoplastic resin sheet including a textured layer which is formed from a polyethylene resin composition comprising a water repellent agent and which has a microscopic texture on one surface side, wherein at least the surface region of the textured layer is a cross-linked material which maintains the microscopic texture even after heated drawing. Also provided is a molded article, such as a molded container, formed by thermoforming the thermoplastic resin sheet.Type: ApplicationFiled: July 18, 2013Publication date: October 29, 2015Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Junpei FUJIWARA, Atsushi TAKEI, Tomohiro OSAWA
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Patent number: 9028938Abstract: An electronic component packaging sheet formed of a styrene resin composition includes: (A) 29-65 mass parts of a styrene-conjugated diene block copolymer; (B) 51-15 mass parts of a polystyrene resin; and (C) 20-9 mass parts of an impact resistant polystyrene resin. Components (A)-(C) each have a weight average molecular weight (Mw) within a specified range.Type: GrantFiled: October 6, 2011Date of Patent: May 12, 2015Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Junpei Fujiwara, Masatoshi Kawata
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Patent number: 9028939Abstract: The present invention discloses a laminated sheet for packaging electronic components comprising a front surface layer, a center core layer and a rear surface layer, wherein the front surface layer and the rear surface layer each contains a rubber-modified styrenic copolymer (A) having a graft ratio of grafted rubber of 30 to 50%, a grafted rubber particle diameter of 0.1 to 0.5 ?m and a butadiene content of 5 to 25% by weight, and polyetheresteramide (B), and the center core layer contains a rubber-modified styrenic copolymer (C) having a graft ratio of grafted rubber of 70 to 90%, a grafted rubber particle diameter of 0.4 to 1.0 ?m, and a butadiene content of 5 to 15% by weight, and 5 to 50% by weight of a recycled material of this laminated sheet.Type: GrantFiled: January 25, 2012Date of Patent: May 12, 2015Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Junpei Fujiwara, Masatoshi Kawata, Yasushi Miyamura
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Patent number: 8999470Abstract: Disclosed is a surface conductive laminated sheet which comprises a base material layer containing an ABS resin as a main component, and a surface layer laminated on the surface of at least one side of the base material layer. In the laminated sheet, the ABS resin in the base material layer includes a composition made of 5-15 mass % of vinyl cyanide monomer, 45-65 mass % of diene-based rubber, and 50-20 mass % of aromatic vinyl monomer, and includes a graft rubber having a graft rate of 50-80%. The graft rubber has a mass average molecular weight (Mw) of a graft chain of 18,000-56,000, and/or has a volume average particle diameter of 0.3 to 2.0 ?m. By using the laminated sheet, it is possible to obtain an electronic part packaging container, such as carrier tape etc., which has extremely few punch burrs regardless of the type of forming apparatus when punched by means of a slit method or embossing.Type: GrantFiled: March 18, 2011Date of Patent: April 7, 2015Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Junpei Fujiwara, Masatoshi Kawata, Yasushi Miyamura
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Publication number: 20130295307Abstract: The present invention discloses a laminated sheet for packaging electronic components comprising a front surface layer, a center core layer and a rear surface layer, wherein the front surface layer and the rear surface layer each contains a rubber-modified styrenic copolymer (A) having a graft ratio of grafted rubber of 30 to 50%, a grafted rubber particle diameter of 0.1 to 0.5 ?m and a butadiene content of 5 to 25% by weight, and polyetheresteramide (B), and the center core layer contains a rubber-modified styrenic copolymer (C) having a graft ratio of grafted rubber of 70 to 90%, a grafted rubber particle diameter of 0.4 to 1.0 ?m, and a butadiene content of 5 to 15% by weight, and 5 to 50% by weight of a recycled material of this laminated sheet.Type: ApplicationFiled: January 25, 2012Publication date: November 7, 2013Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Junpei Fujiwara, Masatoshi Kawata, Yasushi Miyamura
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Publication number: 20130209748Abstract: Disclosed is an electronic component packaging sheet including a surface conductive layer formed on the surface of at least one side of a substrate sheet. The substrate sheet includes 80,000 to 220,000 Mw of a styrene-conjugated diene block copolymer; 200,000 to 400,000 Mw of a polystyrene resin; and 150,000 to 210,000 Mw of an impact resistant polystyrene resin. The surface conductive layer includes an acrylic copolymer resin; and carbon nanotubes. The electronic component packaging sheet is a transparent conductive sheet having excellent thermoforming properties, good transparency after thermoforming, and sufficient electrostatic diffusion performance to maintain a low surface resistance value. The electronic component packaging sheet is particularly suited for the manufacture of embossed carrier tape.Type: ApplicationFiled: October 6, 2011Publication date: August 15, 2013Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Junpei Fujiwara, Tomohiro Osawa, Masatoshi Kawata