Patents by Inventor Masaaki Ito
Masaaki 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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Patent number: 11990260Abstract: The present invention is a method for producing a rare earth magnet, including preparing a magnetic powder and a modifier powder, mixing them to obtain a mixed powder, compression-molding the mixed powder in a magnetic field to obtain a magnetic-field molded body, and pressure-sintering the magnetic-field molded body to obtain a sintered body, wherein the magnetic powder includes a first particle group and a second particle group, the D50 values of the first particle group and the second particle group are denoted by d1 ?m and d2 ?m, respectively, d1 and d2 satisfy the relationship of 0.350?d2/d1?0.500, and the ratio between the total volume of the first particle group and the total volume of the second particle group is from 9:1 to 4:1; and a rare earth magnet obtained by the production method.Type: GrantFiled: November 1, 2022Date of Patent: May 21, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NICHIA CORPORATIONInventors: Masaaki Ito, Motoki Hiraoka, Reimi Tabuchi, Hisashi Maehara, Masanori Okanan
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Publication number: 20240160230Abstract: The flow rate control device 10 includes a control valve 11, a restriction part 12 provided downstream of the control valve 11, an upstream pressure sensor 13 for measuring a pressure P1 between the control valve 11 and the restriction part 12, a differential pressure sensor 20 for measuring a differential pressure ?P between the upstream and the downstream of the restriction part 12, and an arithmetic control circuit 16 connected to the control valve 11, the upstream pressure sensor 13, and the differential pressure sensor 20.Type: ApplicationFiled: January 22, 2024Publication date: May 16, 2024Applicant: FUJIKIN INCORPORATEDInventors: Kaoru HIRATA, Keisuke IDEGUCHI, Shinya OGAWA, Katsuyuki SUGITA, Masaaki NAGASE, Kouji NISHINO, Nobukazu IKEDA, Hiroyuki ITO
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Publication number: 20240161975Abstract: A method of producing a SmFeN-based rare earth magnet, the method including: heat-treating a SmFeN-based anisotropic magnetic powder having a surface coated with a phosphate at a temperature of at least 80° C. but lower than 150° C.; mixing the heat-treated SmFeN-based anisotropic magnetic powder and a Zn-containing modifier powder by dispersion using resin-coated metal media or resin-coated ceramic media to obtain a powder mixture containing the SmFeN-based anisotropic magnetic powder and the modifier powder; compacting the powder mixture in a magnetic field to obtain a magnetic field compact; and pressure-sintering the magnetic field compact to obtain a sintered compact.Type: ApplicationFiled: November 10, 2023Publication date: May 16, 2024Applicants: NICHIA CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisashi MAEHARA, Tomonori INUZUKA, Masaaki ITO, Motoki HIRAOKA
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Patent number: 11973251Abstract: A fuel cell is provided with: a membrane electrode assembly (MEA); and a cathode-side separator assembled to the MEA, the cathode-side separator including first passages on a first surface of the cathode-side separator on a side closer to the MEA, and second passages on a second surface of the cathode-side separator on an opposite side, the first and second passages allowing oxidant gas to flow through the first and second passages, respectively. The first passages include first recessed portions on the first surface so as to extend from one end of the cathode-side separator to the other end, the second passages include second recessed portions on the second surface so as to extend from the one end to the other end and to be arranged alternately with the first recessed portions, and a penetration hole on a bottom face of the second recessed portion penetrating through the cathode-side separator.Type: GrantFiled: July 28, 2021Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Adachi, Naoki Takehiro, Masaaki Matsusue, Masayuki Ito, Hideo Nagaosa
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Publication number: 20240134474Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Inventors: Makoto Takeuchi, Hirokazu Hatayama, Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Takayuki Noto, Takashi Miyamoto
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Publication number: 20240114618Abstract: A circuit board unit includes a first circuit board having a first ground layer, a second circuit board having a second ground layer and arranged so as to be opposed to the first circuit board, a connector unit having a first connector attached to the first circuit board, and a second connector attached to the second circuit board and coupled to the first connector, and a metal member arranged between the first circuit board and the second circuit board, and configured to electrically couple the first ground layer and the second ground layer to each other. The metal member is arranged so as to be adjacent to the connector unit.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Applicant: SEIKO EPSON CORPORATIONInventors: Yu MASAGO, Toshiyuki OMORI, Masaaki ITO, Takeshi HIRAI
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Publication number: 20240113309Abstract: A fuel cell system that recirculates fuel off gas that has not been used for power generation of a fuel cell is provided. The fuel cell system includes a fuel cell stack, a fuel container, a fuel supply path, and a fuel circulation path. The fuel circulation path is connected to a fuel outlet of the fuel cell stack and extends parallel to an end plate of the fuel cell stack. The fuel supply path is connected to the fuel container, extends parallel to the end plate, and merges with the fuel circulation path at a position where a center of the fuel supply path is offset from a center of the fuel circulation path. The fuel circulation path includes a bent portion downstream of a merging portion with the fuel supply path, and is connected to a fuel inlet of the fuel cell stack downstream of the bent portion.Type: ApplicationFiled: July 26, 2023Publication date: April 4, 2024Inventors: Masayuki ITO, Masaaki MATSUSUE, Yumiko TSUGAWA
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Patent number: 11935676Abstract: An Sm—Fe—N-based magnetic material according to the present disclosure includes a main phase having a predetermined crystal structure. The main phase has a composition represented by a molar ratio formula (Sm(1-x-y-z)LaxCeyR1z)2(Fe(1-p-q-s)CopNiqMs)17Nh (where, R1 is a predetermined rare earth element, M is a predetermined element, and 0?x+y<0.04, 0?z?0.10, 0<p+q?0.10, 0?s?0.10, and 2.9?h?3.1 are satisfied). A lattice volume of the main phase is 0.830 nm3 to 0.840 nm3, and a density of the main phase is 7.70 g/cm3 to 8.00 g/cm3.Type: GrantFiled: September 21, 2021Date of Patent: March 19, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke Ichigozaki, Tetsuya Shoji, Noritsugu Sakuma, Akihito Kinoshita, Masaaki Ito
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Patent number: 11925648Abstract: The present invention provides a solid dosage form having good stability, suspensibility in water and fluidity by preparing a solid dosage form containing a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, a stabilizer, a sugar alcohol and/or a sugar, a water-soluble polymer and an inorganic substance.Type: GrantFiled: October 22, 2020Date of Patent: March 12, 2024Assignee: SHIONOGI & CO., LTD.Inventors: Naoya Mizutani, Masayuki Morimoto, Maki Okabe, Masaaki Ito, Go Kimura
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Publication number: 20240069671Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Inventors: Masaaki Shiomura, Hirokazu Hatayama, Makoto Takeuchi, Takayuki Noto, Nobukazu Tanaka, Daisuke Ito, Tomohiro Hirakawa
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Patent number: 11914407Abstract: The flow rate control device 10 includes a control valve 11, a restriction part 12 provided downstream of the control valve 11, an upstream pressure sensor 13 for measuring a pressure P1 between the control valve 11 and the restriction part 12, a differential pressure sensor 20 for measuring a differential pressure ?P between the upstream and the downstream of the restriction part 12, and an arithmetic control circuit 16 connected to the control valve 11, the upstream pressure sensor 13, and the differential pressure sensor 20.Type: GrantFiled: April 16, 2020Date of Patent: February 27, 2024Assignee: FUJIKIN INCORPORATEDInventors: Kaoru Hirata, Keisuke Ideguchi, Shinya Ogawa, Katsuyuki Sugita, Masaaki Nagase, Kouji Nishino, Nobukazu Ikeda, Hiroyuki Ito
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Publication number: 20240062936Abstract: A method of producing a rare earth magnetic powder, the method including: heat-treating a mixture containing a SmFeN-based magnetic powder containing Sm, Fe, and N and a modifier powder containing Zn; and dispersing the heat-treated SmFeN-based magnetic powder using a resin-coated metal media or a resin-coated ceramic media.Type: ApplicationFiled: August 11, 2023Publication date: February 22, 2024Applicants: NICHIA CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisashi MAEHARA, Masaaki ITO, Tomonori INUZUKA, Motoki HIRAOKA
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Publication number: 20230318423Abstract: In an axial gap motor, a rotor includes a plurality of rotor cores fixed in a circumferential direction of a rotor base, and a stator includes a plurality of stator cores fixed in a circumferential direction of a stator base, and coils wound around the stator cores. End faces of each of the rotor cores and end faces of the corresponding stator core are opposed to each other while being exposed to each other.Type: ApplicationFiled: June 8, 2023Publication date: October 5, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiu Kanada, Kazuaki Haga, Toshimitsu Takahashi, Mayumi Takazawa, Takuya Nomura, Shinya Sano, Takeshi Tomonaga, Hisanori Koma, Yasuhide Yagyu, Kensuke Komori, Tatsuhiko Hirano, Masaaki Ito, Hiroaki Wakimoto
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Publication number: 20230317327Abstract: A production method of a Sm—Fe—N-based rare earth magnet, enabling to stably impart sufficient anisotropy, is provided. The present disclosure provides a production method of a rare earth magnet, including preparing a raw material powder containing a magnetic powder (SmFeN powder 10) having a magnetic phase which contains Sm, Fe and N and at least partially has a crystal structure of at least either Th2Zn17 type or Th2Ni17 type, and pressure-sintering the raw material powder. In this production method, magnetic orientation is imparted to the raw material powder by applying a magnetic field before the pressure sintering, and the application of magnetic field is continued to maintain the magnetic orientation at least until the middle of the pressure sintering.Type: ApplicationFiled: March 21, 2023Publication date: October 5, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masaaki ITO, Noritsugu SAKUMA, Akihito KINOSHITA, Reimi TABUCHI, Tomonori INUZUKA, Kunihiro MATSUYAMA, Masashi HARADA
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Publication number: 20230313011Abstract: The present invention provides a means capable of further improving stability and washability under acidic conditions. The present invention is sulfonic acid-modified colloidal silica having an amount of sulfonic acid groups per 1 g of particles of 1.5 ?mol/g or more and 13.0 ?mol/g or less.Type: ApplicationFiled: March 17, 2023Publication date: October 5, 2023Applicant: FUJIMI INCORPORATEDInventors: Shogo TSUBOTA, Keiji ASHITAKA, Masaaki ITO, Tatsuhiko HIRANO, Shota SUZUKI
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Patent number: 11767224Abstract: The present invention provides a means capable of suppressing the formation of fine particles in a method for producing a silica sol.Type: GrantFiled: September 22, 2022Date of Patent: September 26, 2023Assignee: FUJIMI INCORPORATEDInventors: Yusuke Kawasaki, Shogo Tsubota, Masaaki Ito, Jun Shinoda, Keiji Ashitaka
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Publication number: 20230277361Abstract: This organ protecting member (1) is used when an opening portion (36a) is formed in an abdominal wall (30) and an intestinal tract (32) is exposed to a body surface (33) from the opening portion (36a) to temporarily construct an artificial anus (34). The organ protecting member (1) includes a movement restricting part (support string (12)) configured to restrict movement of a portion of the lifted intestinal tract (32) on which the artificial anus (34) is constructed toward an abdominal cavity (35); and a cover (11) disposed between the intestinal tract (32) and an inner wall surface (36b) of the opening portion (36a) of the abdominal wall (30).Type: ApplicationFiled: July 7, 2021Publication date: September 7, 2023Applicants: National Cancer Center, SUMITOMO BAKELITE CO., LTD.Inventors: Masaaki ITO, Hiro HASEGAWA, Zenetsu SUZUKI, Akira KAWAMATA
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Patent number: 11735345Abstract: The method for manufacturing the Halbach magnet array includes the steps of: (a) magnetizing at least two first magnetic material pieces in a direction parallel to a first direction, and (b) magnetizing at least one second magnetic material piece in a direction parallel to a second direction perpendicular to the first direction, in this order. In the step (a), the first magnetic material pieces and the second magnetic material piece are alternately arranged in the second direction with the first magnetic material pieces being each adhered to the adjacent second magnetic material piece, and the magnetization is performed under a condition in which a residual magnetization ratio r1 of the first magnetic material pieces is higher than a residual magnetization ratio r2 of the second magnetic material piece.Type: GrantFiled: May 27, 2022Date of Patent: August 22, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiu Kanada, Reimi Sakaguchi, Masaaki Ito, Takuya Nomura, Daisuke Ichigozaki, Motoki Hiraoka, Mitsutoshi Akita
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Publication number: 20230251557Abstract: A projector includes a first light modulator configured to emit first image light beam, a second light modulator configured to emit second image light beam, a prism configured to combine the first image light beam and the second image light beam with each other, a first metal member configured to couple the first light modulator and the prism to each other, a lens configured to project light beam combined by the prism, a second metal member configured to support the lens, and a third metal member configured to couple the prism and the second metal member to each other. An air layer is disposed in a facing area where the first metal member and the prism face each other.Type: ApplicationFiled: February 7, 2023Publication date: August 10, 2023Inventors: Masaaki ITO, Masayuki SUYAMA
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Patent number: 11711004Abstract: In an axial gap motor, a rotor includes a plurality of rotor cores fixed in a circumferential direction of a rotor base, and a stator includes a plurality of stator cores fixed in a circumferential direction of a stator base, and coils wound around the stator cores. End faces of each of the rotor cores and end faces of the corresponding stator core are opposed to each other while being exposed to each other.Type: GrantFiled: April 12, 2021Date of Patent: July 25, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiu Kanada, Kazuaki Haga, Toshimitsu Takahashi, Mayumi Takazawa, Takuya Nomura, Shinya Sano, Takeshi Tomonaga, Hisanori Koma, Yasuhide Yagyu, Kensuke Komori, Tatsuhiko Hirano, Masaaki Ito, Hiroaki Wakimoto