Patents by Inventor Masaki Kitajima
Masaki Kitajima 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: 11929201Abstract: A surface mount inductor includes a coil including a wound portion and a feeder end portion drawn out from the wound portion, a compact that contains a magnetic powder and that encapsulates the coil, and an external terminal disposed on the compact and connected to the coil. The compact has surfaces including two pressed surfaces, opposing each other in a direction of an axis of the wound portion and formed by being pressed in the direction of the axis, and a non-pressed surface, adjacent to the two surfaces and not pressed. The coil is disposed so that the axis of the wound portion is parallel to a mount surface of the compact. The mount surface is included in the non-pressed surface, the feeder end portion is exposed from the mount surface, and the external terminal is formed on only the non-pressed surface and connected to the feeder end portion.Type: GrantFiled: March 7, 2023Date of Patent: March 12, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Yuki Kitashima, Masaki Kitajima, Takeo Ohaga, Takeshi Shimada, Yoshiaki Hirama, Daigo Mizumura, Ryota Watanabe, Masato Koike, Yuusuke Morita
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Patent number: 11817248Abstract: A surface mount inductor includes a coil buried in a composite material including a magnetic powder; outer terminals connected to the coil; and a molded body having a metal surface that intersects a winding axis of the coil and including the composite material. A surface mount inductor manufacturing method includes arranging, inside a mold, a metal plate having a shape covering part of a surface of a molded body; arranging a coil and a composite material including a magnetic powder or a preliminary molded body composed of the composite material inside the mold in which the metal plate has been arranged; and forming a molded body in which the coil is buried and that has the metal plate arranged on part of a surface of the molded body by molding the metal plate, the composite material, and the coil inside the mold to be integrated with each other.Type: GrantFiled: August 19, 2019Date of Patent: November 14, 2023Assignee: Murata Manufacturing Co., Ltd.Inventors: Hideyuki Isobe, Masaki Kitajima
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Publication number: 20230207187Abstract: A surface mount inductor includes a coil including a wound portion and a feeder end portion drawn out from the wound portion, a compact that contains a magnetic powder and that encapsulates the coil, and an external terminal disposed on the compact and connected to the coil. The compact has surfaces including two pressed surfaces, opposing each other in a direction of an axis of the wound portion and formed by being pressed in the direction of the axis, and a non-pressed surface, adjacent to the two surfaces and not pressed. The coil is disposed so that the axis of the wound portion is parallel to a mount surface of the compact. The mount surface is included in the non-pressed surface, the feeder end portion is exposed from the mount surface, and the external terminal is formed on only the non-pressed surface and connected to the feeder end portion.Type: ApplicationFiled: March 7, 2023Publication date: June 29, 2023Applicant: Murate Manufacturing Co., Ltd.Inventors: Yuki Kitashima, Masaki Kitajima, Takeo Ohaga, Takeshi Shimada, Yoshiaki Hirama, Daigo Mizumura, Ryota Watanabe, Masato Koike, Yuusuke Morita
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Patent number: 11657955Abstract: A surface mount inductor includes a coil including a conducting wire winding portion with both ends on the outer circumference and a pair of extension portions that extend from the outer circumference, a molded body containing a metal magnetic powder and the coil embedded, and a pair of outer terminals disposed on the molded body and connected to the extension portions. The molded body has principal surfaces, end surfaces, and side surfaces. One principal surface serves as a mounting surface including a recessed portion with an elevated region and a lowered region. The coil is embedded in the molded body with the winding axis of the winding portion parallel to the recessed portion, and the pair of extension portions extend from the outer circumference toward the mounting surface to be exposed at the lowered region and connected to the pair of outer terminals in the lowered region.Type: GrantFiled: April 2, 2019Date of Patent: May 23, 2023Assignee: Murata Manufacturing Co., Ltd.Inventors: Ryota Watanabe, Masaki Kitajima, Takeo Ohaga
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Publication number: 20220362112Abstract: A W/O/W emulsion composition comprising a large amount of silicone oil and having a high viscosity and a high stability is provided. The W/O/W emulsion composition comprises: an inner aqueous phase; an oil phase in which the inner aqueous phase is dispersed; and an outer aqueous phase in which the oil phase is dispersed, wherein the inner aqueous phase comprises an osmotic pressure regulator that prepares the inner aqueous phase to have a higher osmotic pressure than the outer aqueous phase, the oil phase comprises a silicone oil that is 0.5 times by mass or greater of the total oil phase, and a silicone-based surfactant having a silicone skeleton as a main skeleton and a hydrophilic group in a side chain, and the outer aqueous phase comprises a polyol and an alkyl-modified carboxyvinyl polymer.Type: ApplicationFiled: October 1, 2020Publication date: November 17, 2022Applicant: Shiseido Company, Ltd.Inventors: Haruhiko INOUE, Masaki KITAJIMA
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Publication number: 20210043362Abstract: An inductor that includes a coil having a winding portion in which a conductor having a coating layer is wound, and a pair of lead-out portions formed by leading out the conductor from the winding portion; and a magnetic portion including magnetic powder and resin and configured to seal the coil. The magnetic powder includes first particles having a first average particle diameter, and second particles having a second average particle diameter smaller than the first average particle diameter, and a thickness of the coating layer has a value larger than the second average particle diameter.Type: ApplicationFiled: August 6, 2020Publication date: February 11, 2021Applicant: Murata Manufacturing Co., Ltd.Inventors: Yasutaka MIZUKOSHI, Takeo OHAGA, Masaki KITAJIMA
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Publication number: 20200090850Abstract: A surface mount inductor includes a coil buried in a composite material including a magnetic powder; outer terminals connected to the coil; and a molded body having a metal surface that intersects a winding axis of the coil and including the composite material. A surface mount inductor manufacturing method includes arranging, inside a mold, a metal plate having a shape covering part of a surface of a molded body; arranging a coil and a composite material including a magnetic powder or a preliminary molded body composed of the composite material inside the mold in which the metal plate has been arranged; and forming a molded body in which the coil is buried and that has the metal plate arranged on part of a surface of the molded body by molding the metal plate, the composite material, and the coil inside the mold to be integrated with each other.Type: ApplicationFiled: August 19, 2019Publication date: March 19, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Hideyuki ISOBE, Masaki KITAJIMA
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Patent number: 10593466Abstract: An electronic component including: a body having a shape of a rectangular parallelepiped, the body including a first end surface and a second end surface opposed to each other and a mounting surface; and a first external electrode provided on the first end surface and the mounting surface. A first portion of the first end surface inclines from a direction normal to the mounting surface so as to come closer to the second end surface with decreasing distance from the mounting surface in the normal direction, the first portion being a portion within a predetermined distance from the mounting surface in the normal direction. A thickness of a portion of the first external electrode contacting the first portion becomes greater with decreasing distance from the mounting surface in the normal direction.Type: GrantFiled: July 26, 2016Date of Patent: March 17, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Masaki Kitajima, Yoshiharu Sato
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Publication number: 20190311841Abstract: A surface mount inductor includes a coil including a conducting wire winding portion with both ends on the outer circumference and a pair of extension portions that extend from the outer circumference, a molded body containing a metal magnetic powder and the coil embedded, and a pair of outer terminals disposed on the molded body and connected to the extension portions. The molded body has principal surfaces, end surfaces, and side surfaces. One principal surface serves as a mounting surface including a recessed portion with an elevated region and a lowered region. The coil is embedded in the molded body with the winding axis of the winding portion parallel to the recessed portion, and the pair of extension portions extend from the outer circumference toward the mounting surface to be exposed at the lowered region and connected to the pair of outer terminals in the lowered region.Type: ApplicationFiled: April 2, 2019Publication date: October 10, 2019Applicant: Murata Manufacturing Co., Ltd.Inventors: Ryota WATANABE, Masaki KITAJIMA, Takeo OHAGA
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Patent number: 10434041Abstract: The present invention provides a water-in-oil type emulsion cosmetic composition with low viscosity while having excellent stability sufficient to withstand the inclusion of a polar oil. A water-in-oil type emulsion cosmetic composition of the present invention is characterized by comprising: (A) 0.1 to 2 mass % of an organically modified clay mineral; (B) 0.1 to 2 mass % of a hydrophobic silica; (C) 2 to 5 mass % of a silicone-type surfactant; (D) an oil component of which 10 to 50 mass % of the total oil component is a non-polar hydrocarbon oil; and (E) 20 to 60 mass % of a water phase component; wherein the (A) organically modified clay mineral and (B) hydrophobic silica total to 0.2 to 2 mass %; and a viscosity of the cosmetic composition as a whole is 1000 to 10000 mPa·s (30° C.; B type viscometer).Type: GrantFiled: March 6, 2014Date of Patent: October 8, 2019Assignee: SHISEIDO COMPANY, LTD.Inventors: Masaki Kitajima, Tomoko Sato, Satoshi Yamaki
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Publication number: 20190304665Abstract: A surface mount inductor includes a coil including a wound portion and a feeder end portion drawn out from the wound portion, a compact that contains a magnetic powder and that encapsulates the coil, and an external terminal disposed on the compact and connected to the coil. The compact has surfaces including two pressed surfaces, opposing each other in a direction of an axis of the wound portion and formed by being pressed in the direction of the axis, and a non-pressed surface, adjacent to the two surfaces and not pressed. The coil is disposed so that the axis of the wound portion is parallel to a mount surface of the compact. The mount surface is included in the non-pressed surface, the feeder end portion is exposed from the mount surface, and the external terminal is formed on only the non-pressed surface and connected to the feeder end portion.Type: ApplicationFiled: January 31, 2019Publication date: October 3, 2019Applicant: Murata Manufacturing Co., Ltd.Inventors: Yuki KITASHIMA, Masaki KITAJIMA, Takeo OHAGA, Takeshi SHIMADA, Yoshiaki HIRAMA, Daigo MIZUMURA, Ryota WATANABE, Masato KOIKE, Yuusuke MORITA
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Publication number: 20190282485Abstract: Provided is a water-in-oil emulsion cosmetic having an excellent resilient and supple feeling and also an excellent moisturizing effect and the feeling in use. The water-in-oil emulsion cosmetic of the present invention is characterized by comprising the following (A) to (D) and the percentage of component (b1) with respect to component (A) and component (B) being 40 to 85 mass %. (A) 0.5 to 10 mass % of a sterol derivative, (B) an oil containing (b1) (b1) a volatile oil having, low compatibility with (A). (C) an emulsifying agent, and (D) 60 to 90 mass % of an aqueous component.Type: ApplicationFiled: June 3, 2019Publication date: September 19, 2019Inventors: Masaki KITAJIMA, Ayako IBE, Kei WATANABE
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Patent number: 10335362Abstract: The purpose of the present invention is to provide a water-in-oil type cosmetic which ensures emulsion stability in the case where a volatile hydrocarbon oil component is added, has excellent texture such as not leaving a greasy feeling, and is highly compatible with the skin. The present invention relates to a water-in-oil type emulsified cosmetic comprising: (A) 20 to 30 mass % of an oil component; (B) a fatty acid ester having an HLB of 5 to 10; (C) a nonionic surfactant having an HLB of 1 to 4; (D) an organic modified clay mineral; and (E) water, wherein volatile hydrocarbon oil accounts for 10 mass % or more of the oil component (A) and silicone oil is not contained.Type: GrantFiled: October 5, 2011Date of Patent: July 2, 2019Assignee: SHISEIDO COMPANY, LTD.Inventors: Kazutaka Sasaki, Takayuki Omura, Masaki Kitajima
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Patent number: 10340072Abstract: An electronic component includes a body made of a material containing particles of a metallic magnetic material, and an outer electrode disposed on a surface of the body. The surface of the body has a contact portion with which the outer electrode is in contact, and the surface of the body includes particles of the metallic magnetic material which are exposed from the surface of the body.Type: GrantFiled: July 7, 2016Date of Patent: July 2, 2019Assignee: Murata Manufacturing Co., Ltd.Inventors: Masaki Kitajima, Takashi Tomohiro, Gota Shinohara, Hironori Suzuki, Noriko Shimizu
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Patent number: 10157705Abstract: The electric circuit includes a first inductor and a third inductor that, when viewed in plan view from a first direction, wind around a first axis extending in the first direction, and a second inductor that, when viewed in plan view from the first direction, winds around a second axis extending in the first direction. A second region where the second inductor is provided overlaps, in the first direction, with a first region where the first inductor is provided or a third region where the third inductor is provided. When a common mode signal is inputted to the first inductor to third inductor, the orientation of a magnetic field produced in the first axis by the first inductor and the third inductor is opposite from the orientation of a magnetic field produced in the second axis by the second inductor.Type: GrantFiled: July 1, 2016Date of Patent: December 18, 2018Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromu Fukushima, Masaki Kitajima, Kuniaki Yosui
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Patent number: 9997288Abstract: An electronic component includes a body and a coil. The body includes first to fourth insulator layers composed of an anisotropic magnetic material, an internal magnetic circuit composed of an isotropic magnetic material and an external magnetic circuit composed of an isotropic magnetic material. The second and third insulator layers cover an upper surface and a lower surface of the coil from a z-axis direction. The internal magnetic circuit and the external magnetic circuit are adjacent to each other in a direction orthogonal to the z-axis direction. In addition, a direction of easy magnetization of the anisotropic magnetic material used in the first to fourth insulator layers is orthogonal to the z-axis direction.Type: GrantFiled: October 1, 2015Date of Patent: June 12, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Koichi Yamaguchi, Masaki Kitajima, Akinori Hamada
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Patent number: 9865388Abstract: An electronic component includes a main body formed from an insulative material, coil conductors, outer electrodes provided on a surface of the main body, and outer pads. Each coil conductor is constituted by a spiral-shaped coil portion and a lead portion connected to the coil portion and extending linearly. The outer pads connect the lead portions to the outer electrodes. At a contact point that connects one of the coil portions to their corresponding one of the lead portions, an angle formed by the coil portion and the lead portion is an obtuse angle.Type: GrantFiled: February 24, 2016Date of Patent: January 9, 2018Assignee: Murata Manufacturing Co., Ltd.Inventors: Kosuke Ishida, Sayaka Sekiguchi, Masaki Kitajima
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Patent number: 9711273Abstract: In an inductor component, fallen-off-filler marks that are formed as a result of a filler falling off from an outer surface of a component body are present in a dotted manner in portions of the outer surface that are in contact with outer electrodes. As a result of the filler falling off, a joining area at interfaces between the component body and the outer electrodes increases, and stress generated at the interfaces between the component body and the outer electrodes is reduced.Type: GrantFiled: June 10, 2015Date of Patent: July 18, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Hironori Suzuki, Masaki Kitajima
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Publication number: 20160336110Abstract: An electronic component including: a body having a shape of a rectangular parallelepiped, the body including a first end surface and a second end surface opposed to each other and a mounting surface; and a first external electrode provided on the first end surface and the mounting surface. A first portion of the first end surface inclines from a direction normal to the mounting surface so as to come closer to the second end surface with decreasing distance from the mounting surface in the normal direction, the first portion being a portion within a predetermined distance from the mounting surface in the normal direction. A thickness of a portion of the first external electrode contacting the first portion becomes greater with decreasing distance from the mounting surface in the normal direction.Type: ApplicationFiled: July 26, 2016Publication date: November 17, 2016Applicants: MURATA MANUFACTURING CO., LTD., TOKO, INC.Inventors: Masaki KITAJIMA, Yoshiharu SATO
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Publication number: 20160314892Abstract: The electric circuit includes a first inductor and a third inductor that, when viewed in plan view from a first direction, wind around a first axis extending in the first direction, and a second inductor that, when viewed in plan view from the first direction, winds around a second axis extending in the first direction. A second region where the second inductor is provided overlaps, in the first direction, with a first region where the first inductor is provided or a third region where the third inductor is provided. When a common mode signal is inputted to the first inductor to third inductor, the orientation of a magnetic field produced in the first axis by the first inductor and the third inductor is opposite from the orientation of a magnetic field produced in the second axis by the second inductor.Type: ApplicationFiled: July 1, 2016Publication date: October 27, 2016Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Hiromu FUKUSHIMA, Masaki KITAJIMA, Kuniaki YOSUI