Patents by Inventor Masafumi Fujita
Masafumi Fujita 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: 11960836Abstract: An index value assignment device comprises: a selection unit that prompts a user to select, from a sentence, one or more words that the user feels to have a same degree of a predetermined index value with respect to one or more first words for which the index value is known; a validation unit that validates the selection result by the user on a basis of the index value of a second word for which the index value is known from among the one or more words included in the selection result; and a determination unit that determines the index value with respect to a third word for which the index value is unknown from among the one or more words selected by the user, on a basis of the index value of the first word according to the selection result for which the selection result is determined to be valid. Consequently, the efficiency of assigning word familiarity is increased.Type: GrantFiled: March 11, 2020Date of Patent: April 16, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yoshinari Shirai, Tessei Kobayashi, Sanae Fujita, Masafumi Matsuda, Yasue Kishino
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Publication number: 20230256790Abstract: A vehicle rear suspension structure includes a torsion beam and a pair of arm units. Each of the arm units includes a trailing arm formed in a tubular shape extending in the vehicle front-rear direction, an end plate occluding a rear side opening of the trailing arm, an upper reinforcing member, and a lower reinforcing member. A shaft insertion hole is formed in an inner side portion of a rear arm of the trailing arm, the upper reinforcing member is joined to the rear arm to fit an upper side edge portion of a peripheral edge portion of the shaft insertion hole, and the lower reinforcing member is joined to the rear arm to fit a lower side edge portion of the peripheral edge portion of the shaft insertion hole.Type: ApplicationFiled: January 5, 2023Publication date: August 17, 2023Applicant: SUZUKI MOTOR CORPORATIONInventor: Masafumi Fujita
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Patent number: 11346885Abstract: According to one embodiment, a winding interlayer short-circuit detection apparatus includes a processor configured to perform at least an interlayer short-circuit detecting process to detect, based on a difference between a measurement value of a field current in a field winding of a brushless exciter and a reference value, and based on a difference between a calculated value of an armature reaction voltage induced in the field winding of the brushless exciter and a reference value, a presence or absence of an interlayer short-circuit that may occur in any of the field winding of the brushless exciter, an armature winding of the brushless exciter, and a field winding of a rotary electric machine body.Type: GrantFiled: March 16, 2021Date of Patent: May 31, 2022Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Takahiro Sato, Masafumi Fujita, Norio Takahashi, Ken Nagakura, Koji Ando, Yoichi Tomoe
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Publication number: 20220149686Abstract: According to one embodiment, there is provided an armature winding of a rotating electrical machine, the armature winding being a 3-phase 6 or more even-number pole two-layer wound armature winding. The armature winding includes three or more parallel circuits provided in each phase, an individual coil constituting each of the circuits being connected by wave winding, each circuit being arranged so that phase belts respectively overlap phase belts of “number of poles/2” in the circuits on both adjacent sides, and the phase belts being arranged at different positions in a circumferential direction in each circuit.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Takashi UEDA, Masafumi FUJITA, Masashi OKUBO, Hiroaki ISHIZUKA
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Patent number: 11320489Abstract: According to the embodiment, a field winding interlayer short-circuit detection apparatus comprises: a field winding resistance calculator to calculate, for a field winding of a rotating electrical machine, a field winding resistance calculated value from a detected value of a field winding current and a detected value of a field winding voltage; a determiner to determine presence or absence of an interlayer short-circuit in the field winding by using a comparison result between the field winding resistance calculated value and the reference resistance value.Type: GrantFiled: July 27, 2020Date of Patent: May 3, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Toshio Hirano, Yoshihiro Taniyama, Masafumi Fujita, Koji Ando, Yoshinori Torii
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Publication number: 20220021277Abstract: In general, according to one embodiment, there is provided an abnormality detection system of a rotary electrical machine. The system includes a plurality of magnetic flux sensors disposed at intervals on a back of a stator core in a circumferential direction or an axial direction, and configured to detect a magnetic flux, and an abnormality detection apparatus configured to detect an abnormality of the stator core from a predetermined event that appears in a composite signal or a differential signal obtained from signals respectively output from at least two magnetic flux sensors of the plurality of magnetic flux sensors.Type: ApplicationFiled: June 28, 2021Publication date: January 20, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Norio Takahashi, Masafumi Fujita, Takahiro Sato, Takashi Ueda, Ken Nagakura, Masashi Kobayashi, Koji Ando
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Patent number: 11165291Abstract: A stator core support device according to an embodiment includes plural types of support members that support a stator core on a stator frame disposed radially outward. These support members are combined so as to form a closed circuit portion. Then, an insulating part for electrically insulating part of the closed circuit portion is provided.Type: GrantFiled: July 31, 2018Date of Patent: November 2, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Norio Takahashi, Masafumi Fujita, Takahiro Sato, Hideyuki Nakamura, Ken Nagakura, Kazuma Tsujikawa
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Publication number: 20210293886Abstract: According to one embodiment, a winding interlayer short-circuit detection apparatus includes a processor configured to perform at least an interlayer short-circuit detecting process to detect, based on a difference between a measurement value of a field current in a field winding of a brushless exciter and a reference value, and based on a difference between a calculated value of an armature reaction voltage induced in the field winding of the brushless exciter and a reference value, a presence or absence of an interlayer short-circuit that may occur in any of the field winding of the brushless exciter, an armature winding of the brushless exciter, and a field winding of a rotary electric machine body.Type: ApplicationFiled: March 16, 2021Publication date: September 23, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Takahiro SATO, Masafumi FUJITA, Norio TAKAHASHI, Ken NAGAKURA, Koji ANDO, Yoichi TOMOE
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Publication number: 20210033674Abstract: According to the embodiment, a field winding interlayer short-circuit detection apparatus comprises: a field winding resistance calculator to calculate, for a field winding of a rotating electrical machine, a field winding resistance calculated value from a detected value of a field winding current and a detected value of a field winding voltage; a determiner to determine presence or absence of an interlayer short-circuit in the field winding by using a comparison result between the field winding resistance calculated value and the reference resistance value.Type: ApplicationFiled: July 27, 2020Publication date: February 4, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Toshio HIRANO, Yoshihiro TANIYAMA, Masafumi FUJITA, Koji ANDO, Yoshinori TORII
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Patent number: 10770945Abstract: According to one embodiment, there is provided a rotating electrical machine coil with a conductor and an insulation layer that is provided around the conductor to cover the conductor, the rotating electrical machine coil including a linear part of the coil and a coil end that is separable from and electrically connectable to the linear part of the coil.Type: GrantFiled: January 5, 2018Date of Patent: September 8, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Hidehito Matsuzaki, Tetsushi Okamoto, Fumio Sawa, Miki Nakamura, Atsushi Yamamoto, Yo Sasaki, Masafumi Fujita, Yoshihiro Taniyama, Takashi Harakawa, Norio Takahashi, Takaaki Hirose, Hiroaki Ishizuka
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Patent number: 10749396Abstract: According to one embodiment, there is provided a three-phase even-numbered-pole two-layered armature winding housed in forty five slots per pole provided in a laminated iron core. Coil pieces corresponding to first and second parallel circuits are arranged in the first phase belt, coil pieces corresponding to fourth and fifth parallel circuits are arranged in the second phase belt, coil pieces corresponding to the third parallel circuit are arranged in the first and second phase belts, and the upper coil pieces and the lower coil pieces of each parallel circuit are placed in same-numbered positions from a pole center.Type: GrantFiled: April 20, 2017Date of Patent: August 18, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Ueda, Masafumi Fujita, Tadashi Tokumasu, Masashi Kobayashi
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Publication number: 20190052134Abstract: A stator core support device according to an embodiment includes plural types of support members that support a stator core on a stator frame disposed radially outward. These support members are combined so as to form a closed circuit portion. Then, an insulating part for electrically insulating part of the closed circuit portion is provided.Type: ApplicationFiled: July 31, 2018Publication date: February 14, 2019Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Norio TAKAHASHI, Masafumi FUJITA, Takahiro SATO, Hideyuki NAKAMURA, Ken NAGAKURA, Kazuma TSUJIKAWA
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Patent number: 10186923Abstract: According to one embodiment, there is provided a 3-phase even-numbered-pole 2-layered armature winding housed in 45 slots per pole provided in a laminated iron core. The coil pieces corresponding to first, second, and third parallel circuits are placed in the first phase belt, and the coil pieces corresponding to fourth, fifth, and sixth parallel circuits are placed in the second phase belt. The upper coil pieces and the lower coil pieces of each parallel circuit are mutually placed in identical-numbered positions from a pole center.Type: GrantFiled: September 20, 2016Date of Patent: January 22, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Ueda, Masafumi Fujita, Tadashi Tokumasu, Kazuma Tsujikawa
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Patent number: 10128713Abstract: According to one embodiment, there is provided a 3-phase even-numbered-pole 2-layered armature winding housed in 45 slots per pole provided in a laminated iron core. In each coil piece group of each phase belt, the coil pieces of the second and fifth parallel circuits are placed in the second positions from the pole center among three positions of coil pieces in corresponding coil piece group. In six or four groups out of ten coil piece groups of each phase belt, coil pieces of the first or fourth parallel circuit are placed in the first position from the pole center. In first and second coil piece groups, coil pieces of the first or fourth parallel circuit are placed in different-numbered positions from the pole center.Type: GrantFiled: September 20, 2016Date of Patent: November 13, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masafumi Fujita, Takashi Ueda, Tadashi Tokumasu, Kazuma Tsujikawa, Masanori Arata
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Patent number: 10118734Abstract: A blow-molded container includes a container body having a body portion that forms a square shape in a cross-sectional view orthogonal to a container axis; and in-mold labels, which are integrally glued on outer peripheral surfaces of glued portions, ranging from corner surfaces to respective planar portions continuing on both sides of corner surfaces around the container axis, in body portion. Among front and back surfaces of in-mold labels, multiple recesses are formed over entire back surfaces, which are glued to the outer peripheral surfaces of the glued portions. When tensile elasticity of in-mold labels is E (MPa) and thickness of in-mold labels is t (mm), E×t3 is 0.20 or less. When the radius of curvature of the corner surfaces is R (mm) and angle formed between the planar portions is ? (°) in a cross-sectional view of the glued portions, R×?2 is 45000 or more.Type: GrantFiled: March 6, 2015Date of Patent: November 6, 2018Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Takashi Miya, Masafumi Fujita
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Publication number: 20180198345Abstract: According to one embodiment, there is provided a rotating electrical machine coil with a conductor and an insulation layer that is provided around the conductor to cover the conductor, the rotating electrical machine coil including a linear part of the coil and a coil end that is separable from and electrically connectable to the linear part of the coil.Type: ApplicationFiled: January 5, 2018Publication date: July 12, 2018Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Hidehito Matsuzaki, Tetsushi Okamoto, Fumio Sawa, Miki Nakamura, Atsushi Yamamoto, Yo Sasaki, Masafumi Fujita, Yoshihiro Taniyama, Takashi Harakawa, Norio Takahashi, Takaaki Hirose, Hiroaki Ishizuka
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Patent number: 10019914Abstract: A technical problem of this invention is to create in-mold labels that can be adhered to wide areas, including 3D curved areas, of the peripheral wall of a synthetic resin container in a high-grade state without air entrapment and/or wrinkling. A principal means of this invention to solve the technical problem described above is in-mold labels used as an inserted material and adhered to the outer peripheral wall of a container main-body concurrently when the main body is being molded, said labels including an adhesive layer to be adhered to the outer peripheral wall of the container main-body, wherein this adhesive layer has depressed portions on a back surface thereof, the depressed portions being formed by embossing and being disposed in a regular pattern.Type: GrantFiled: March 11, 2013Date of Patent: July 10, 2018Assignee: YOSHINO KOGYOSHO CO., LTD.Inventors: Takashi Miya, Masafumi Fujita
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Publication number: 20170310182Abstract: According to one embodiment, there is provided a three-phase even-numbered-pole two-layered armature winding housed in forty five slots per pole provided in a laminated iron core. Coil pieces corresponding to first and second parallel circuits are arranged in the first phase belt, coil pieces corresponding to fourth and fifth parallel circuits are arranged in the second phase belt, coil pieces corresponding to the third parallel circuit are arranged in the first and second phase belts, and the upper coil pieces and the lower coil pieces of each parallel circuit are placed in same-numbered positions from a pole center.Type: ApplicationFiled: April 20, 2017Publication date: October 26, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi UEDA, Masafumi Fujita, Tadashi Tokumasu, Masashi Kobayashi
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Publication number: 20170149298Abstract: According to one embodiment, there is provided an armature winding for an electrical rotating machine. The armature winding includes a plurality of coil pieces partly housed in a plurality of winding slots formed in a stator core, each coil piece comprising a plurality of wire conductors which are formed to be transposed by being twisted, wherein at least some of coil-piece end portions protruding outward from side surfaces of the stator core are configured to have different wire conductor transposition angles according to an amount of impinging fluxes or an impinging flux density.Type: ApplicationFiled: November 22, 2016Publication date: May 25, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: MASAFUMI FUJITA, TAKASHI UEDA, TAKAAKI HIROSE, MASASHI OKUBO, TAKERU SAITO
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Publication number: 20170107016Abstract: A blow-molded container includes a container body having a body portion that forms a square shape in a cross-sectional view orthogonal to a container axis; and in-mold labels, which are integrally glued on outer peripheral surfaces of glued portions, ranging from corner surfaces to respective planar portions continuing on both sides of corner surfaces around the container axis, in body portion. Among front and back surfaces of in-mold labels, multiple recesses are formed over entire back surfaces, which are glued to the outer peripheral surfaces of the glued portions. When tensile elasticity of in-mold labels is E (MPa) and thickness of in-mold labels is t (mm), E×t3 is 0.20 or less. When the radius of curvature of the corner surfaces is R (mm) and angle formed between the planar portions is ? (°) in a cross-sectional view of the glued portions, R×?2 is 45000 or more.Type: ApplicationFiled: March 6, 2015Publication date: April 20, 2017Applicant: YOSHINO KOGYOSHO CO., LTD.Inventors: Takashi MIYA, Masafumi FUJITA