Patents by Inventor Takashi Koike
Takashi Koike 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: 11969662Abstract: There is provided a robot device including: a head portion coupled to a trunk; four leg portions on a front left, a front right, a rear left, and a rear right coupled to the trunk; a first indirect portion that tilts the head portion left and right; and a second joint portion that rotates, with respect to the trunk, one of the leg portions on the rear left and the rear right to a front side, and the other to a rear side. It is possible to faithfully reproduce the movement of the four-legged animal by providing the first joint portion and the second joint portion.Type: GrantFiled: September 6, 2018Date of Patent: April 30, 2024Assignee: SONY CORPORATIONInventors: Hidenori Ishibashi, Tomoo Mizukami, Takuma Araki, Masato Muraki, Tomoyuki Arai, Goushi Koike, Takayuki Ito, Kouta Katsumura, Yohei Watanabe, Muneyuki Horiguchi, Takashi Maeda, Satoshi Muto, Hideo Miyano
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Publication number: 20230086645Abstract: A bearing device includes: a magnetic ring fixed to an inner ring; and a stator fixed to an outer ring so as to face magnetic ring. Magnetic ring and stator constitute a claw pole type generator. Stator includes a coil and a magnetic yoke surrounding coil. The magnetic yoke is configured by combining a first member and a second member that are magnetic bodies. First member and second member have an identical shape. Each of first member and second member has a plurality of second claws arranged in a comb shape. A plurality of first claws of first member and the plurality of second claws of second member are alternately arranged on a surface facing magnetic ring.Type: ApplicationFiled: February 2, 2021Publication date: March 23, 2023Inventors: Takashi KOIKE, Yusuke SHIBUYA, Sota YAMAGUCHI
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Publication number: 20230027711Abstract: A bearing device includes: at least one bearing that has a rolling element and a raceway surface to support a main shaft; a member disposed on a path through which pressing force generating a preload between the rolling element and the raceway surface is transmitted; and at least one load sensor element fixed to the member to measure the pressing force. At least one load sensor element is a chip component including a thin film pattern of which resistance changes according to the pressing force and a protective layer that insulates and protects thin film pattern.Type: ApplicationFiled: December 8, 2020Publication date: January 26, 2023Inventors: Takashi Koike, Yasuyuki FUKUSHIMA, Yusuke SHIBUYA, Daichi KONDOU
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Publication number: 20220216051Abstract: A semiconductor wafer according to an embodiment includes a support region facing a support member, an outer circumferential region positioned on an outer side of the support region, and an inner circumferential region positioned on an inner side of the support region. The outer circumferential region has a convex portion with a thickness protruded upward with respect to the inner circumferential region or a concave portion with a thickness recessed downward with respect to the inner circumferential region.Type: ApplicationFiled: March 28, 2022Publication date: July 7, 2022Applicant: Kioxia CorporationInventors: Takashi KOIKE, Manabu TAKAKUWA
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Patent number: 11293494Abstract: A bearing equipped with a sensor and incorporating a power generation function in a simple configuration is provided. A bearing includes an outer ring, a plurality of rolling elements, an inner ring, a cage, a seal member, a sensor, a transmission unit, and a power generation unit. The sensor is disposed in the seal member, and detects state information of the bearing. The transmission unit transmits the state information detected by the sensor to outside. The power generation unit is disposed so as to face a bearing space sandwiched between the outer ring and the inner ring, and generates electric power that is to be supplied to the sensor and the transmission unit. The power generation unit includes an element that converts stress into electromotive force.Type: GrantFiled: February 8, 2019Date of Patent: April 5, 2022Assignee: NTN CORPORATIONInventors: Takashi Koike, Yasuyuki Fukushima, Yusuke Shibuya
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Patent number: 11181399Abstract: The magnetic encoder includes: a core member of annular shape having a press-fitting portion which bends and extends from an edge of a track formation surface, and to which a rotary shaft is press-fitted and fixed; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The two or more rows of magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle of rotation, and a sub track used for calculating a phase difference from the main track. The main track is located on a side more distant from the press-fitting portion than the sub track.Type: GrantFiled: July 24, 2019Date of Patent: November 23, 2021Assignee: NTN CORPORATIONInventors: Takashi Koike, Yasuyuki Fukushima, Yuya Yamaguchi
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Patent number: 11143950Abstract: A mask manufacturing method includes stacking a first antireflection layer on a first stacked body at a first film thickness so as to create a first transmissive type mask. In the first stacked body, a first semitransmissive layer, a first reflective layer, and a first transmissive substrate are stacked. The mask manufacturing method includes stacking a second antireflection layer on a second stacked body at a second film thickness so as to create a second transmissive type mask. In the second stacked body, a second semitransmissive layer, a second reflective layer, and a second transmissive substrate are stacked. The second film thickness is determined in accordance with a thermal expansion amount of the first mask.Type: GrantFiled: February 28, 2018Date of Patent: October 12, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Yuki Akamatsu, Nobuhiro Komine, Takashi Koike
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Patent number: 11137303Abstract: A torque detection device includes an inner ring, a middle ring, an outer ring, a first beam, a second beam, a magnetic target, and a magnetic sensor. The first beam is composed of an elastic member extending in a radial direction so as to couple the inner ring and the middle ring together. The second beam is composed of an elastic member extending in a radial direction so as to couple the middle ring to the outer ring together. The magnetic target is fixed to the inner ring and the magnetic sensor is fixed to the middle ring such that the magnetic target and the magnetic sensor face each other. Torque acting on the inner ring or the outer ring is calculated according to how an amount of magnetism sensed by the magnetic sensor changes.Type: GrantFiled: September 20, 2018Date of Patent: October 5, 2021Assignee: NTN CORPORATIONInventors: Yusuke Shibuya, Takashi Koike, Yasuyuki Fukushima
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Patent number: 11099037Abstract: A magnetic encoder having a plurality of rows of magnetic tracks and capable of detecting an absolute angle is easily producible with higher accuracy. The magnetic encoder includes: a core member of annular shape having a bending plate portion that bends and extends from an edge of a track formation surface; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle, and a sub track used for calculating a phase difference from the main track. The main track is located on a side closer to the bending plate portion than the sub track.Type: GrantFiled: July 24, 2019Date of Patent: August 24, 2021Assignee: NTN CORPORATIONInventors: Takashi Koike, Yasuyuki Fukushima, Yuya Yamaguchi
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Patent number: 11008659Abstract: The present invention provides a chemical conversion liquid for zinc or zinc alloy bases, which contains 2-200 mmol/L of trivalent chromium ions, 1-300 mmol/L of zirconium ions and at least one component selected from among fluorine ions, a water-soluble carboxylic acid and a salt thereof, and which does not contain Co ions and hexavalent chromium ions.Type: GrantFiled: December 25, 2015Date of Patent: May 18, 2021Assignee: DIPSOL CHEMICALS CO., LTD.Inventors: Ayumi Saito, Masatoshi Ishikawa, Takashi Koike
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Publication number: 20210066068Abstract: A semiconductor wafer according to an embodiment includes a support region facing a support member, an outer circumferential region positioned on an outer side of the support region, and an inner circumferential region positioned on an inner side of the support region. The outer circumferential region has a convex portion with a thickness protruded upward with respect to the inner circumferential region or a concave portion with a thickness recessed downward with respect to the inner circumferential region.Type: ApplicationFiled: February 18, 2020Publication date: March 4, 2021Applicant: Kioxia CorporationInventors: Takashi KOIKE, Manabu Takakuwa
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Publication number: 20200392987Abstract: A bearing equipped with a sensor and incorporating a power generation function in a simple configuration is provided. A bearing includes an outer ring, a plurality of rolling elements, an inner ring, a cage, a seal member, a sensor, a transmission unit, and a power generation unit. The sensor is disposed in the seal member, and detects state information of the bearing. The transmission unit transmits the state information detected by the sensor to outside. The power generation unit is disposed so as to face a bearing space sandwiched between the outer ring and the inner ring, and generates electric power that is to be supplied to the sensor and the transmission unit. The power generation unit includes an element that converts stress into electromotive force.Type: ApplicationFiled: February 8, 2019Publication date: December 17, 2020Inventors: Takashi KOIKE, Yasuyuki FUKUSHIMA, Yusuke SHIBUYA
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Publication number: 20200292400Abstract: A torque detection device includes an inner ring, a middle ring, an outer ring, a first beam, a second beam, a magnetic target, and a magnetic sensor. The first beam is composed of an elastic member extending in a radial direction so as to couple the inner ring and the middle ring together. The second beam is composed of an elastic member extending in a radial direction so as to couple the middle ring to the outer ring together. The magnetic target is fixed to the inner ring and the magnetic sensor is fixed to the middle ring such that the magnetic target and the magnetic sensor face each other. Torque acting on the inner ring or the outer ring is calculated according to how an amount of magnetism sensed by the magnetic sensor changes.Type: ApplicationFiled: September 20, 2018Publication date: September 17, 2020Inventors: Yusuke SHIBUYA, Takashi KOIKE, Yasuyuki FUKUSHIMA
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Publication number: 20190346289Abstract: The magnetic encoder includes: a core member of annular shape having a press-fitting portion which bends and extends from an edge of a track formation surface, and to which a rotary shaft is press-fitted and fixed; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The two or more rows of magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle of rotation, and a sub track used for calculating a phase difference from the main track. The main track is located on a side more distant from the press-fitting portion than the sub track.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Applicant: NTN CORPORATIONInventors: Takashi KOIKE, Yasuyuki FUKUSHIMA, Yuya YAMAGUCHI
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Publication number: 20190346292Abstract: Provided is a magnetic encoder that can be produced by a simple modification of an existing production method and that can detect an absolute angle with high efficiency, and a method and an apparatus for producing the magnetic encoder. In a magnetic encoder, a plurality of rows of magnetic tracks, each having N poles and S poles arranged alternately, are disposed adjacent to each other. The rows of magnetic tracks include a main track used for calculating an angle and a sub track used for calculating a phase difference from the main track. The number of magnetic poles of the main track is larger than that of the sub track. The main track is magnetized after the sub track. Thus, accuracy of pitch of the magnetic poles is higher in the main track than in the sub track.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Applicant: NTN CORPORATIONInventors: Takashi KOIKE, Yasuyuki FUKUSHIMA, Yuya YAMAGUCHI
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Publication number: 20190346291Abstract: A magnetic encoder having a plurality of rows of magnetic tracks and capable of detecting an absolute angle is easily producible with higher accuracy. The magnetic encoder includes: a core member of annular shape having a bending plate portion that bends and extends from an edge of a track formation surface; and two or more rows of magnetic tracks arranged adjacent to each other on a magnetic member provided on the track formation surface, each track having N poles and S poles alternately magnetized thereon. The magnetic tracks include a main track that has a largest number of magnetic poles and is used for calculating an angle, and a sub track used for calculating a phase difference from the main track. The main track is located on a side closer to the bending plate portion than the sub track.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Applicant: NTN CORPORATIONInventors: Takashi KOIKE, Yasuyuki FUKUSHIMA, Yuya YAMAGUCHI
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Patent number: 10308406Abstract: There is provided a fastener including a band, a band fastening portion and a mounting portion. The band fastening portion includes a passage hole, a locking claw, a supporting wall portion, and a pair of side wall portions. The supporting wall portion extends in a direction from an inlet opening towards an outlet opening and has end faces. The band has a proximal end portion extending from the end face of the supporting wall portion. The pair of side wall portions are disposed so as to define a gap in a widthwise direction between the proximal end portion and themselves. End faces of the pair of side wall portions project further in a passing direction of the band through the passage hole than the end face of the supporting wall portion.Type: GrantFiled: October 20, 2017Date of Patent: June 4, 2019Assignee: PIOLAX, INC.Inventor: Takashi Koike
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Publication number: 20190136383Abstract: The present invention provides a chemical conversion liquid for zinc or zinc alloy bases, which contains 2-200 mmol/L of trivalent chromium ions, 1-300 mmol/L of zirconium ions and at least one component selected from among fluorine ions, a water-soluble carboxylic acid and a salt thereof, and which does not contain Co ions and hexavalent chromium ions.Type: ApplicationFiled: December 25, 2015Publication date: May 9, 2019Inventors: Ayumi SAITO, Masatoshi ISHIKAWA, Takashi KOIKE
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Publication number: 20190079386Abstract: A mask manufacturing method includes stacking a first antireflection layer on a first stacked body at a first film thickness so as to create a first transmissive type mask. In the first stacked body, a first semitransmissive layer, a first reflective layer, and a first transmissive substrate are stacked. The mask manufacturing method includes stacking a second antireflection layer on a second stacked body at a second film thickness so as to create a second transmissive type mask. In the second stacked body, a second semitransmissive layer, a second reflective layer, and a second transmissive substrate are stacked. The second film thickness is determined in accordance with a thermal expansion amount of the first mask.Type: ApplicationFiled: February 28, 2018Publication date: March 14, 2019Applicant: TOSHIBA MEMORY CORPORATIONInventors: Yuki AKAMATSU, Nobuhiro KOMINE, Takashi KOIKE
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Patent number: 10053137Abstract: It is an object of the present invention to provide a rear wheel steering device of which the weight is not added to unsprung weight, and which can steer right and left rear wheels independently of each other. The rear wheel steering device includes a first rod connected to the left rear wheel, a first driving portion configured to axially move the first rod, a second rod connected to the right rear wheel, and a second driving portion configured to axially move the second rod. A single housing supports the first rod, the first driving portion, the second rod, and the second driving portion.Type: GrantFiled: April 7, 2015Date of Patent: August 21, 2018Assignee: NTN CORPORATIONInventors: Hironori Tokunaga, Takashi Koike