Patents by Inventor Yuji Sekitomi
Yuji Sekitomi 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: 11858029Abstract: A three-dimensionally shaped round metallic wire having a cross-section non-circular portion in a predetermined portion without performing additional processing and having specified dimensional accuracy and accuracy of form. In an intermediate step in which the round metallic wire is processed in a predetermined three-dimensional shape, a cross-section non-circular portion forming machine 20 which forms the cross-section non-circular portion having a non-circular cross-sectional shape in at least one position is included. At the time of bending, the cross-section non-circular portion is held by a wire holding portion of a bending machine 30, and the bending is performed in the predetermined three-dimensional shape. Holding the cross-section non-circular portion causes relative rotation between the cross-section non-circular portion and the wire holding portion to be suppressed as compared with a case of the cross-section circular shape.Type: GrantFiled: September 24, 2020Date of Patent: January 2, 2024Assignee: MATSUO INDUSTRIES, INC.Inventors: Yuji Sekitomi, Kunihito Takeuchi, Mamoru Toda
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Publication number: 20230102281Abstract: A wet sheet with a predetermined length is securely provided while drying is prevented. When a motor control part receives a detection signal from a hand hovering sensor, a motor is driven from a standby state to rotate a driving roller. When a cutting line is detected by a cutting line detecting sensor, the driving of the motor is continued until a predetermined time set beforehand in which the detected cutting line reaches the side downstream of a contact point between the driving roller and a driven roller in terms of the feeding direction has elapsed, to be stopped. The detected cutting line is located downstream of the contact point between the driving roller and the driven roller in terms of the feeding direction. In front of the detected cutting line, the wet sheet for one sheet is present and is detected by the sheet detecting sensor.Type: ApplicationFiled: January 21, 2021Publication date: March 30, 2023Applicant: MATSUO INDUSTRIES, INC.Inventors: Motoi MATSUO, Yuji SEKITOMI, Mikiya ICHIKAWA, Kazushi AKUTSU, Noriyuki HEIKE
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Publication number: 20220371075Abstract: A three-dimensionally shaped round metallic wire having a cross-section non-circular portion in a predetermined portion without performing additional processing and having specified dimensional accuracy and accuracy of form. In an intermediate step in which the round metallic wire is processed in a predetermined three-dimensional shape, a cross-section non-circular portion forming machine 20 which forms the cross-section non-circular portion having a non-circular cross-sectional shape in at least one position is included. At the time of bending, the cross-section non-circular portion is held by a wire holding portion of a bending machine 30, and the bending is performed in the predetermined three-dimensional shape. Holding the cross-section non-circular portion causes relative rotation between the cross-section non-circular portion and the wire holding portion to be suppressed as compared with a case of the cross-section circular shape.Type: ApplicationFiled: September 24, 2020Publication date: November 24, 2022Applicant: MATSUO INDUSTRIES, INC.Inventors: Yuji SEKITOMI, Kunihito TAKEUCHI, Mamoru TODA
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Patent number: 11333483Abstract: A rotor (2) of a rotation angle sensor is configured by forming a band-shaped main body (31) of a magnetic steel sheet into a cylindrical shape so that a thickness direction of the band-shaped main body (31) is set as a radial direction. First undulations (32) are provided at a substantially constant pitch on one arc-shaped edge portion of the band-shaped main body (31), and second undulations (33) are provided at a substantially constant pitch on the other arc-shaped edge portion. A first stator (3) is disposed to face the first undulations (32) of the band-shaped main body (31) of the rotor (2), and a second stator (4) is disposed to face the second undulations (33).Type: GrantFiled: October 26, 2018Date of Patent: May 17, 2022Assignee: MATSUO INDUSTRIES, INC.Inventors: Yuji Sekitomi, Hiroshi Imaeda, Hironori Tanaka
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Publication number: 20210196086Abstract: To dispense a predetermined length of a sheet hygienically. In a sheet dispensing device, a sheet feeding mechanism feeds out a predetermined length for use of a sheet from a sheet dispensing port, and at this time, a part, of the sheet, located upstream of the sheet dispensing port in terms of a feeding direction of the sheet is held by a driving roller and a driven roller. The driven roller is biased by leaf springs to be pressed toward the driving roller. Consequently, the sheet is dispensed while hanging down from the sheet dispensing port. When a user pulls down the hanging sheet while holding it, the sheet is cut from the vicinity of a held part, so that the user can take the predetermined length for use of the sheet hygienically.Type: ApplicationFiled: August 19, 2019Publication date: July 1, 2021Applicant: MATSUO INDUSTRIES, INC.Inventors: Motoi MATSUO, Yuji SEKITOMI, Mikiya ICHIKAWA, Kazushi AKUTSU, Noriyuki HEIKE
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Publication number: 20210018310Abstract: A rotor (2) of a rotation angle sensor is configured by forming a band-shaped main body (31) of a magnetic steel sheet into a cylindrical shape so that a thickness direction of the band-shaped main body (31) is set as a radial direction. First undulations (32) are provided at a substantially constant pitch on one arc-shaped edge portion of the band-shaped main body (31), and second undulations (33) are provided at a substantially constant pitch on the other arc-shaped edge portion. A first stator (3) is disposed to face the first undulations (32) of the band-shaped main body (31) of the rotor (2), and a second stator (4) is disposed to face the second undulations (33).Type: ApplicationFiled: October 26, 2018Publication date: January 21, 2021Applicant: MATSUO INDUSTRIES, INC.Inventors: Yuji Sekitomi, Hiroshi Imaeda, Hironori Tanaka
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Patent number: 8988067Abstract: A variable reluctance resolver includes a rotor that rotates about a rotational axis, a plurality of detection coils that detect rotation of the rotor, and a magnetic member that magnetically connects adjacent ones of the detection coils to each other. The magnetic member includes a pair of body portions around which the detection coils are wound, and a connection portion that connects the pair of body portions to each other. Both the body portions and the connection portion have a thin flat shape. The body portions are flat so that a direction of extension of the flat shape is along a rotational axis direction, and the magnetic member has a U shape as viewed from the rotational axis direction.Type: GrantFiled: May 10, 2011Date of Patent: March 24, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Hiroshi Aihara, Yasuhiro Endo, Toshihiro Kimura, Yuji Sekitomi, Masao Okumura, Yuki Yamakawa, Noriharu Ogiso
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Patent number: 8519701Abstract: A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.Type: GrantFiled: September 9, 2010Date of Patent: August 27, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Kazuhiro Goto, Eiji Yamada, Toshihiro Kimura, Yuji Sekitomi, Yuki Yamakawa, Mutsumi Matsuura, Takashi Sano, Hiroshi Abe
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Patent number: 8148973Abstract: A magnetic resolver includes: a plurality of columnar cores disposed on an annular plate; a coil portion disposed around each of the columnar cores; and an annular rotor having a sinusoidal profile that rotates in a plane parallel to the top faces of the columnar cores around a rotation axis that passes through the center of the annular plate. The coil portion may be formed of a patterned coil formed on an annular substrate that has a plurality of through holes made therein through which the plurality of cores are passed, the patterned coil being formed around the through hole.Type: GrantFiled: December 22, 2006Date of Patent: April 3, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Masayuki Nishiguchi, Yuji Sekitomi, Yoji Hamamoto
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Publication number: 20110279112Abstract: A variable reluctance resolver includes a rotor that rotates about a rotational axis, a plurality of detection coils that detect rotation of the rotor, and a magnetic member that magnetically connects adjacent ones of the detection coils to each other. The magnetic member includes a pair of body portions around which the detection coils are wound, and a connection portion that connects the pair of body portions to each other. Both the body portions and the connection portion have a thin flat shape. The body portions are flat so that a direction of extension of the flat shape is along a rotational axis direction, and the magnetic member has a U shape as viewed from the rotational axis direction.Type: ApplicationFiled: May 10, 2011Publication date: November 17, 2011Applicants: Matsuo Industries, Inc., Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Aihara, Yasuhiro Endo, Toshihiro Kimura, Yuji Sekitomi, Masao Okumura, Yuki Yamakawa, Noriharu Ogiso
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Patent number: 7924125Abstract: A stop lamp switch including: an enclosure; a reed switch disposed in the enclosure; a magnet, disposed in the enclosure, a magnetic field of which opens and closes the contacts of the reed switch; an actuating shaft that is movable along an axial direction of the enclosure; a blocking member provided on the actuating shaft, that moves with the movement of the actuating shaft, between a first position, at which the magnetic field from the magnet directed toward the first reed switch is blocked, and a second position, at which the blocking of the magnetic field from the magnet directed toward the first reed switch is no longer blocked.Type: GrantFiled: April 16, 2007Date of Patent: April 12, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Masayuki Nishiguchi, Masao Okumura, Yuji Sekitomi, Kyohei Manabe
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Publication number: 20110057648Abstract: A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.Type: ApplicationFiled: September 9, 2010Publication date: March 10, 2011Applicants: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Kazuhiro Goto, Eiji Yamada, Toshihiro Kimura, Yuji Sekitomi, Yuki Yamakawa, Mutsumi Matsuura, Takashi Sano, Hiroshi Abe
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Publication number: 20100156401Abstract: A magnetic resolver that includes: an annular stator portion having a protruding core; an annular coil substrate on which a coil portion, which is disposed around the protruding core, is formed as a patterned thin-film coil; and a rotor portion disposed to face the stator portion from above, with the coil substrate interposed therebetween, wherein the amount of overlap between a top face of the protruding core and the rotor portion, when viewed from above, varies as a rotation angle of the rotor portion relative to the stator portion varies. The annular coil substrate may be constituted of substrate pieces that have shapes obtained by dividing the annular shape, which facilitates increasing the yield rate in the number of substrate pieces that can be produced from a substrate material.Type: ApplicationFiled: April 12, 2007Publication date: June 24, 2010Inventors: Masayuki Nishiguchi, Yuji Sekitomi, Toshihiro Kimura
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Publication number: 20090237189Abstract: A stop lamp switch including: an enclosure; a reed switch disposed in the enclosure; a magnet, disposed in the enclosure, a magnetic field of which opens and closes the contacts of the reed switch; an actuating shaft that is movable along an axial direction of the enclosure; a blocking member provided on the actuating shaft, that moves with the movement of the actuating shaft, between a first position, at which the magnetic field from the magnet directed toward the first reed switch is blocked, and a second position, at which the blocking of the magnetic field from the magnet directed toward the first reed switch is no longer blocked.Type: ApplicationFiled: April 16, 2007Publication date: September 24, 2009Applicants: Toyota Jidosha Kabushiki Kaisha, Matsuo Industries, Inc.Inventors: Masayuki Nishiguchi, Masao Okumura, Yuji Sekitomi, Kyohei Manabe
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Publication number: 20090179632Abstract: A magnetic resolver includes: a plurality of columnar cores disposed on an annular plate; a coil portion disposed around each of the columnar cores; and an annular rotor having a sinusoidal profile that rotates in a plane parallel to the top faces of the columnar cores around a rotation axis that passes through the center of the annular plate. The coil portion may be formed of a patterned coil formed on an annular substrate that has a plurality of through holes made therein through which the plurality of cores are passed, the patterned coil being formed around the through hole.Type: ApplicationFiled: December 22, 2006Publication date: July 16, 2009Inventors: Masayuki Nishiguchi, Yuji Sekitomi, Yoji Hamamoto
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Patent number: 6906459Abstract: A light-emitting diode includes a light-emitting element, a lead assembly for supplying electrical power to the light-emitting element. A reflection mirror is provided in an opposing relation to the light-emitting surface of the light-emitting element. A light-transmissible material seals the light-emitting element, a part of the lead assembly, and the reflection mirror. A radiation surface radiates light reflected on the reflection mirror to the outside. The reflection mirror is a metal mirror which is obtained by processing a metal plate to give it a concave shape or which is obtained by mirror-surface-treating the concave surface of the metal mirror formed by the processing of the metal plate. The radiation surface is formed on the light-transmissible material at its surface at the rear of the light-emitting element.Type: GrantFiled: December 28, 2000Date of Patent: June 14, 2005Assignee: Toyoda Gosei Co., Ltd.Inventors: Yoshinobu Suehiro, Yuji Takahashi, Koichi Kaga, Kouji Uchida, Yuji Sekitomi
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Patent number: 6864610Abstract: In a rotor having plural permanent magnets secured on a rotary shaft for use in, e.g., an electric motor which is incorporated preferably into a rack-type electric power steering device, a cylindrical cover is fit on the rotary shaft to cover the external surfaces of the plural permanent magnets, and one or both axial end portions of the cylindrical cover are plastically deformed thereby to secure the cylindrical cover onto the rotary shaft. Thus, the cylindrical cover is firmly secured to the rotary shaft and, even when one or more permanent magnets are separated from the rotary shaft or broken, prevents the separated permanent magnets or the broken fragments from scattering within a housing of the motor.Type: GrantFiled: August 6, 2003Date of Patent: March 8, 2005Assignee: Toyoda Koki Kabushiki KaishaInventors: Atsushi Hase, Akira Hiramitsu, Yasuo Kinoshita, Yasuharu Terada, Yuji Sekitomi
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Publication number: 20040095032Abstract: In a rotor having plural permanent magnets secured on a rotary shaft for use in, e.g., an electric motor which is incorporated preferably into a rack-type electric power steering device, a cylindrical cover is fit on the rotary shaft to cover the external surfaces of the plural permanent magnets, and one or both axial end portions of the cylindrical cover are plastically deformed thereby to secure the cylindrical cover onto the rotary shaft. Thus, the cylindrical cover is firmly secured to the rotary shaft and, even when one or more permanent magnets are separated from the rotary shaft or broken, prevents the separated permanent magnets or the broken fragments from scattering within a housing of the motor.Type: ApplicationFiled: August 6, 2003Publication date: May 20, 2004Applicant: TOYODA KOKI KABUSHIKI KAISHAInventors: Atsushi Hase, Akira Hiramitsu, Yasuo Kinoshita, Yasuharu Terada, Yuji Sekitomi
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Patent number: 6508485Abstract: A horn switch includes a stationary member, a movable member, a spring and a connecting bolt. The stationary member has a stationary contact and is supported on a steering wheel body The movable member has a movable contact and is arranged above the stationary member. The connecting bolt allows downward movements of the movable member and prescribes a distance of the movable contact from the stationary contact. The connecting bolt is provided with a head and a shank. The head abuts against an underside of the stationary member. The shank extends upward from the head to be fastened to a threaded hole in the movable member. Prior to fastening, the connecting bolt is temporarily fixed to the stationary member by latch legs. The latch legs latch a lower surface of the head in a manner to permit the connecting bolt to be fastened to the movable member.Type: GrantFiled: May 10, 2001Date of Patent: January 21, 2003Assignees: Toyoda Gosei Co., Ltd., Matsuo Industries Inc.Inventors: Mitsuhiro Kikuta, Yoshiyuki Fujita, Hiroshi Yasuda, Yuji Sekitomi, Toshihiro Kimura
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Publication number: 20020011721Abstract: A horn switch includes a stationary member, a movable member, a spring and a connecting bolt. The stationary member has a stationary contact and is supported on a steering wheel body. The movable member has a movable contact and is arranged above the stationary member. The connecting bolt allows downward movements of the movable member and prescribes a distance of the movable contact from the stationary contact. The connecting bolt is provided with a head and a shank. The head abuts against an underside of the stationary member. The shank extends upward from the head to be fastened to a threaded hole in the movable member. Prior to fastening, the connecting bolt is temporarily fixed to the stationary member by latch legs. The latch legs latch a lower surface of the head in a manner to permit the connecting bolt to be fastened to the movable member.Type: ApplicationFiled: May 10, 2001Publication date: January 31, 2002Inventors: Mitsuhiro Kikuta, Yoshiyuki Fujita, Hiroshi Yasuda, Yuji Sekitomi, Toshihiro Kimura