Patents by Inventor Yoshiki Kawai
Yoshiki Kawai 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: 11964688Abstract: A touch detection device that includes: a steering body; a sensor electrode provided at the steering body and having an electrostatic capacitance; and a measurement control section configured to: measure the electrostatic capacitance of the sensor electrode over a measurement cycle according to a measurement frequency and to output a detection value according to values measured by setting the measurement frequency to 50 Hz or 60 Hz for removal target frequencies of 50 Hz and 60 Hz, set the measurement cycle and a period for calculating a segment average of the measurement values based on the measurement frequency, and set an interval between adjacent averaging segments for calculating the segment average such that one segment average value is suppressed by another segment average value for 50 Hz and 60 Hz frequency components, and output an averaged measurement value for the two averaging segments as the detection value.Type: GrantFiled: October 3, 2022Date of Patent: April 23, 2024Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Ryohei Sugimoto, Yoshiki Hanta, Hiroo Kawai
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Patent number: 11956896Abstract: A printed wiring board includes a first insulating layer, a conductor layer, and a second insulating layer. The conductor layer includes first and second circuits such that space is formed between the circuits, the first circuit has first and second side walls, the second circuit has third and fourth side walls such that the second wall faces the third wall, the first circuit has first, second and third portions, the second circuit has fourth, fifth and sixth portions such that the first and fourth portions, the second and fifth portions and the third and sixth portions face each other, the first circuit is formed such that the second wall of the second portion is recessed from the second wall of the first and third portions, and the first insulating layer has recess between the second and fifth portions such that the second insulating layer is filling the space and recess.Type: GrantFiled: February 21, 2022Date of Patent: April 9, 2024Assignee: IBIDEN CO., LTD.Inventors: Tomohiko Murata, Yoshiteru Hashimoto, Yoshiki Kawai, Hideyuki Goto
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Publication number: 20240013983Abstract: The objective of the present disclosure is to improve the electrical conductivity of conductive polymers and to provide an electrolytic capacitor using conductive polymers with high electrical conductivity. The solid electrolytic capacitor uses the conductive polymer in which an index D derived by D=(B+C)/A is 4 or more based on an absorbance A at 585 nm, an absorbance B at 800 nm, and an absorbance C at 1200 nm in a light absorption spectrum of the conductive polymer.Type: ApplicationFiled: September 14, 2021Publication date: January 11, 2024Inventors: Yoshiki KAWAI, Shingo Takeuchi, Kenji Machida
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Patent number: 11605992Abstract: A motor assembly includes a motor and sealing member fixed to a frame. The motor includes a stator and a rotor. The stator includes a coil holding portion and a first portion with an annular shape and extending radially outward from the coil holding portion. The rotor includes a magnet and a magnet holding portion located in a first space. The first portion has a first surface in contact with the first space, and a second surface on a side opposite to the first surface. A through hole penetrates from the first surface to the second surface in the first portion. The sealing member is disposed on a side of the stator opposite to the rotor, and is fixed to the frame so a second space between the sealing member and the stator does not communicate with an external space other than the first space.Type: GrantFiled: May 10, 2022Date of Patent: March 14, 2023Assignee: Daikin Industries, Ltd.Inventors: Shin Nakamasu, Hirokazu Fujii, Ryousuke Kishi, Yoshiki Kawai
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Publication number: 20220287175Abstract: A printed wiring board includes a first insulating layer, a conductor layer, and a second insulating layer. The conductor layer includes first and second circuits such that space is formed between the circuits, the first circuit has first and second side walls, the second circuit has third and fourth side walls such that the second wall faces the third wall, the first circuit has first, second and third portions, the second circuit has fourth, fifth and sixth portions such that the first and fourth portions, the second and fifth portions and the third and sixth portions face each other, the first circuit is formed such that the second wall of the second portion is recessed from the second wall of the first and third portions, and the first insulating layer has recess between the second and fifth portions such that the second insulating layer is filling the space and recess.Type: ApplicationFiled: February 21, 2022Publication date: September 8, 2022Applicant: IBIDEN CO., LTD.Inventors: Tomohiko MURATA, Yoshiteru HASHIMOTO, Yoshiki KAWAI, Hideyuki GOTO
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Publication number: 20220271590Abstract: A motor assembly includes a motor and sealing member fixed to a frame. The motor includes a stator and a rotor. The stator includes a coil holding portion and a first portion with an annular shape and extending radially outward from the coil holding portion. The rotor includes a magnet and a magnet holding portion located in a first space. The first portion has a first surface in contact with the first space, and a second surface on a side opposite to the first surface. A through hole penetrates from the first surface to the second surface in the first portion. The sealing member is disposed on a side of the stator opposite to the rotor, and is fixed to the frame so a second space between the sealing member and the stator does not communicate with an external space other than the first space.Type: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Inventors: Shin NAKAMASU, Hirokazu FUJII, Ryousuke KISHI, Yoshiki KAWAI
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Patent number: 10756591Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.Type: GrantFiled: July 11, 2019Date of Patent: August 25, 2020Assignees: NIDEC CORPORATION, NIDEC TAIWAN CORPORATIONInventors: Yusuke Makino, Yoshiki Kawai, Keisuke Morita, Guo Jhih Yan, Hsiu Ying Lin
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Publication number: 20190334402Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Yusuke MAKINO, Yoshiki KAWAI, Keisuke MORITA, Guo Jhih YAN, Hsiu Ying LIN
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Patent number: 10411543Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.Type: GrantFiled: November 12, 2015Date of Patent: September 10, 2019Assignees: NIDEC CORPORATION, NIDEC TAIWAN CORPORATIONInventors: Yusuke Makino, Yoshiki Kawai, Keisuke Morita, Guo Jhih Yan, Hsiu Ying Lin
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Publication number: 20180123433Abstract: A motor may include a stator having coil groups of plural phases and a connector, the stator comprising a plurality of split stators. Each of the split stators may include a split core having an arc-shaped core back section and a tooth section, an insulator, a coil which has a lead-out line that is connected to the connector. The insulator may have a first void extending between a first inner wall and a first outer wall. The first inner wall may have a lead-in groove. The stator may have a support ring disposed on the upper side of the first void. The support ring may have a second void extending between a second inner wall and a second outer wall. A plurality of lead-out lines of different phases may respectively accommodated in the first void and the second void.Type: ApplicationFiled: May 12, 2017Publication date: May 3, 2018Inventors: Yoshinobu NAKAMURA, Yoshiki KAWAI, Yusuke MAKINO, Yosuke YAMADA
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Patent number: 9893588Abstract: A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion.Type: GrantFiled: April 22, 2014Date of Patent: February 13, 2018Assignee: NIDEC CORPORATIONInventors: Yusuke Makino, Yoshiki Kawai
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Publication number: 20170331341Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.Type: ApplicationFiled: November 12, 2015Publication date: November 16, 2017Inventors: Yusuke MAKINO, Yoshiki KAWAI, Keisuke MORITA, Guo Jhih YAN, Hsiu Ying LIN
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Patent number: 9685844Abstract: A motor may include a stator having coil groups of plural phases and a connector, the stator comprising a plurality of split stators. Each of the split stators may include a split core having an arc-shaped core back section and a tooth section, an insulator, a coil which has a lead-out line that is connected to the connector. The insulator may have a first void extending between a first inner wall and a first outer wall. The first inner wall may have a lead-in groove. The stator may have a support ring disposed on the upper side of the first void. The support ring may have a second void extending between a second inner wall and a second outer wall. A plurality of lead-out lines of different phases may respectively accommodated in the first void and the second void.Type: GrantFiled: January 20, 2014Date of Patent: June 20, 2017Assignee: NIDEC CORPORATIONInventors: Yoshinobu Nakamura, Yoshiki Kawai, Yusuke Makino, Yosuke Yamada
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Publication number: 20150017328Abstract: A surface treatment apparatus includes a treatment vessel which contains a treatment solution, a transfer device which transfers a substrate through an interior portion of the treatment vessel in an in-plane direction of the substrate, and a jet device which is positioned in the interior portion of the treatment vessel and jets the treatment solution onto a surface of the substrate such that the surface of the substrate is treated with the treatment solution in the interior portion of the treatment vessel. The jet device has a nozzle hole which jets the treatment solution in a jet direction set parallel or diagonal with respect to the substrate surface.Type: ApplicationFiled: July 15, 2014Publication date: January 15, 2015Applicant: IBIDEN CO., LTD.Inventors: Takashi Nakane, Yoshihiro Nishio, Yoshiki Kawai, Teruyoshi Hisada, Koya Ozeki, Mitsutaka Naitoh, Yutaka Shichi
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Publication number: 20140319936Abstract: A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion.Type: ApplicationFiled: April 22, 2014Publication date: October 30, 2014Applicant: NIDEC CORPORATIONInventors: Yusuke MAKINO, Yoshiki KAWAI
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Publication number: 20140292124Abstract: A motor may include a stator having coil groups of plural phases and a connector, the stator comprising a plurality of split stators. Each of the split stators may include a split core having an arc-shaped core back section and a tooth section, an insulator, a coil which has a lead-out line that is connected to the connector. The insulator may have a first void extending between a first inner wall and a first outer wall. The first inner wall may have a lead-in groove. The stator may have a support ring disposed on the upper side of the first void. The support ring may have a second void extending between a second inner wall and a second outer wall. A plurality of lead-out lines of different phases may respectively accommodated in the first void and the second void.Type: ApplicationFiled: January 20, 2014Publication date: October 2, 2014Applicant: NIDEC CORPORATIONInventors: Yoshinobu NAKAMURA, Yoshiki KAWAI, Yusuke MAKINO, Yosuke YAMADA
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Publication number: 20060192005Abstract: An image display apparatus has a reader/writer for a contactless IC card, which is disposed at a position adjacent to a display section of the image display apparatus.Type: ApplicationFiled: February 13, 2006Publication date: August 31, 2006Inventors: Yoshihisa Narui, Taro Tadano, Yoshiki Kawai, Kazushige Tsurumi