Patents by Inventor Takahiro Ichihara
Takahiro Ichihara 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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Publication number: 20240085348Abstract: Provided are a measurement device and a measurement method that enable calibration in the event of error variations. A measurement device configured to measure an amount of moisture contained in a medium, the measurement device including: a first probe in which a first cable electrically connectable to a first connection cable is embedded; a second probe in which a second cable electrically connectable to a second connection cable is embedded; and a standard that is fixed at a predetermined positional relationship with the first probe and the second probe even during the measurement, is electrically connectable to the first connection cable and the second connection cable when the measurement is not conducted, and is used for calibration of the measurement.Type: ApplicationFiled: December 16, 2021Publication date: March 14, 2024Applicant: SONY GROUP CORPORATIONInventors: Sachio IIDA, Atsushi YAMADA, Takuya ICHIHARA, Takahiro OISHI, Toshiyuki HIROI
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Patent number: 11923116Abstract: Disclosed is a grain-oriented electrical steel sheet with extremely low iron loss by means of a magnetic domain refining technique. In a grain-oriented electrical steel sheet having a plurality of magnetic domains refined via a local strain introduction portion, when a direct-current external magnetic field is applied to the steel sheet in a rolling direction, for a magnetic flux leaked from the local strain introduction portion at a position 1.0 mm away from a surface of the steel sheet at a side of the local strain introduction portion, a value obtained by dividing an intensity level of a total leakage magnetic flux by an intensity level of a magnetic flux leaked due to causes other than strain is more than 1.2.Type: GrantFiled: November 21, 2019Date of Patent: March 5, 2024Assignee: JFE STEEL CORPORATIONInventors: Takeshi Omura, Yoshihisa Ichihara, Kunihiro Senda, Takahiro Koshihara
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Patent number: 10590428Abstract: Provided is a microorganism having high sophorolipid production capability. Disclosed is a sophorolipid-producing yeast mutant strain, in which a polypeptide consisting of the amino acid sequence set forth in SEQ ID NO:2 or an amino acid sequence having at least 90% identity therewith, has been deleted or deactivated.Type: GrantFiled: July 15, 2016Date of Patent: March 17, 2020Assignee: Kao CorporationInventors: Takahiro Ichihara, Yasushi Kageyama, Masatoshi Tohata, Fumikazu Takahashi
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Patent number: 10435684Abstract: Provided is a microorganism exhibiting high production capability for sophorolipids. Disclosed is a yeast mutant strain having high sophorolipid productivity, in which a transporter transporting Acyl-CoA to a peroxisome has been deleted or deactivated.Type: GrantFiled: July 15, 2016Date of Patent: October 8, 2019Assignee: Kao CorporationInventors: Takahiro Ichihara, Masatoshi Tohata, Atsuko Hayase, Fumikazu Takahashi
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Publication number: 20190062723Abstract: Provided is a microorganism exhibiting high production capability for sophorolipids. Disclosed is a yeast mutant strain having high sophorolipid productivity, in which a transporter transporting Acyl-CoA to a peroxisome has been deleted or deactivated.Type: ApplicationFiled: July 15, 2016Publication date: February 28, 2019Applicant: KAO CORPORATIONInventors: Takahiro ICHIHARA, Masatoshi TOHATA, Atsuko HAYASE, Fumikazu TAKAHASHI
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Publication number: 20180208935Abstract: Provided is a microorganism having high sophorolipid production capability. Disclosed is a sophorolipid-producing yeast mutant strain, in which a polypeptide consisting of the amino acid sequence set forth in SEQ ID NO:2 or an amino acid sequence having at least 90% identity therewith, has been deleted or deactivated.Type: ApplicationFiled: July 15, 2016Publication date: July 26, 2018Applicant: Kao CorporationInventors: Takahiro ICHIHARA, Yasushi KAGEYAMA, Masatoshi TOHATA, Fumikazu TAKAHASHI
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Patent number: 7278938Abstract: A power transmission device includes a first one-way clutch that transmits a rotational power of a pulley to a rotating shaft, and a second one-way clutch that transmits a rotational power of a rotor of a motor to the rotating shaft. The first one-way clutch is of inner cam type in which an engagement cam-surface is formed in an outer periphery of a first inner ring, while the second one-way clutch is of outer cam type in which an engagement cam-surface is formed in an inner periphery of a second outer ring. This arrangement improves engagement performance of the first one-way clutch as well as reducing heat generation of the second one-way clutch, so that the lifetime of grease is prolonged.Type: GrantFiled: February 26, 2004Date of Patent: October 9, 2007Assignee: Koyo Seiko Co., Ltd.Inventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Patent number: 7201685Abstract: The present invention comprises a pulley, a shaft body which is rotatable relative to the pulley and is concentrically disposed radially inside of the pulley, a one-way clutch which is interposed at an annular space between the pulley and the shaft body, a rolling bearing which is disposed in the annular space adjacent to the one-way clutch in an axial direction, an inner annular seal which is provided outside the rolling bearing in the annular space, and an outer annular seal which is provided outside the inner annular seal and has a proximal end portion and a distal end side lip. The proximal end portion of the outer annular seal is fixed to one of an inner peripheral surface of the pulley and an outer peripheral surface of the shaft body, and the distal end side lip of the outer annular seal contacts the other peripheral surface.Type: GrantFiled: July 9, 2002Date of Patent: April 10, 2007Assignee: Koyo Seiko Co., Ltd.Inventors: Tadahiro Terada, Michiru Ueda, Yoshitaka Nakagawa, Hideki Fujiwara, Takahiro Ichihara
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Patent number: 7195110Abstract: There is provided a one-way clutch unit that is simple in structure and compact. An annular recess 67 is provided in an inner periphery of a side of a deep groove ball bearing portion 55 of a first inner ring 7 of a first one-way clutch 1, and an end portion on the side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in the annular recess 67. Thereby, the dimension in an axial direction of the one-way clutch unit is reduced by a dimension in the axial direction of the second one-way clutch 2 that is disposed in the annular recess 67.Type: GrantFiled: February 26, 2004Date of Patent: March 27, 2007Assignees: Koyo Seiko Co., Ltd., Kabushiki Kaisha Toyota JidoshokkiInventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Patent number: 7143881Abstract: A pulley is concentrically disposed around a hollow shaft, and a one-way clutch is disposed between the hollow shaft and the pulley. At least one bearing is provided between the shaft and the pulley. In the one-way clutch, a roller as a meshing member and a coil spring as a biasing member are integrally rotated together with an outer ring. The roller moves in a meshing-releasing direction by a centrifugal force when a rotation speed of the outer ring becomes equal to or higher than a predetermined speed, and a biasing force of the coil spring has enough magnitude for permitting this movement. The pulley is provided at its inner periphery with a cam surface, and the pulley and the outer ring of the one-way clutch are integrally formed.Type: GrantFiled: October 2, 2002Date of Patent: December 5, 2006Assignee: Koyo Seiko Co., Ltd.Inventors: Takahiro Ichihara, Hideki Fujiwara
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Patent number: 7056247Abstract: A pulley unit includes a pulley and a rotor concentrically disposed for relative rotation, a one-way clutch interposed in an annular space therebetween, rolling bearings provided on opposite sides of the one-way clutch, and a seal ring for sealing the annular space. An inner diametrical surface of the pulley forms an outer ring raceway of the one-way clutch and the rolling bearing, and an outer diametrical surface of the shaft body forms an inner ring raceway of the one-way clutch and the rolling bearing. An outer diameter side of an annular portion of a retainer of the rolling bearing on the side of the seal ring is reduced so as to increase a storage volume of lubricating oil between the rolling bearing and the seal ring.Type: GrantFiled: July 27, 2001Date of Patent: June 6, 2006Assignee: Koyo Seiko Co., Ltd.Inventors: Hideki Fujiwara, Takahiro Ichihara, Tadahiro Terada, Michiru Ueda
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Patent number: 7007781Abstract: There is provided a compact one-way clutch unit that can perform connection and disconnection of power in two systems. An end portion on a side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in an annular recess 67, which is provided at an end portion in an inner peripheral surface of a first inner ring 7, so that the dimension in an axial direction of a one-way clutch unit is reduced. Further, an outer peripheral diameter on a side of the deep groove ball bearing portion 65 is made smaller than that on the side of a one-way clutch portion 60 of a second outer ring 14 so as to reduce a diameter of the recess 67 and the outer peripheral diameter of the first outer ring 5 of the first one-way clutch 1.Type: GrantFiled: February 26, 2004Date of Patent: March 7, 2006Assignee: Koyo Seiko Co., Ltd.Inventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Publication number: 20040178039Abstract: There is provided a compact one-way clutch unit that can perform connection and disconnection of power in two systems. An end portion on a side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in an annular recess 67, which is provided at an end portion in an inner peripheral surface of a first inner ring 7, so that the dimension in an axial direction of a one-way clutch unit is reduced. Further, an outer peripheral diameter on a side of the deep groove ball bearing portion 65 is made smaller than that on the side of a one-way clutch portion 60 of a second outer ring 14 so as to reduce a diameter of the recess 67 and the outer peripheral diameter of the first outer ring 5 of the first one-way clutch 1.Type: ApplicationFiled: February 26, 2004Publication date: September 16, 2004Applicants: Koyo Seiko Co., Ltd., Kabushiki Kaisha Toyota JidoshokkiInventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Publication number: 20040180742Abstract: A power transmission device includes a first one-way clutch that transmits a rotational power of a pulley to a rotating shaft, and a second one-way clutch that transmits a rotational power of a rotor of a motor to the rotating shaft. The first one-way clutch is of inner cam type in which an engagement cam-surface is formed in an outer periphery of a first inner ring, while the second one-way clutch is of outer cam type in which an engagement cam-surface is formed in an inner periphery of a second outer ring. This arrangement improves engagement performance of the first one-way clutch as well as reducing heat generation of the second one-way clutch, so that the lifetime of grease is prolonged.Type: ApplicationFiled: February 26, 2004Publication date: September 16, 2004Applicants: Koyo Seiko Co., Ltd., Kabushiki Kaisha Toyota JidoshokkiInventors: Takahiro Ichihara, Hajima Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Publication number: 20040178040Abstract: There is provided a one-way clutch unit that is simple in structure and compact. An annular recess 67 is provided in an inner periphery of a side of a deep groove ball bearing portion 55 of a first inner ring 7 of a first one-way clutch 1, and an end portion on the side of a deep groove ball bearing portion 65 of a second one-way clutch 2 is disposed in the annular recess 67. Thereby, the dimension in an axial direction of the one-way clutch unit is reduced by a dimension in the axial direction of the second one-way clutch 2 that is disposed in the annular recess 67.Type: ApplicationFiled: February 26, 2004Publication date: September 16, 2004Applicants: Koyo Seiko Co., Ltd., Kabushiki Kaisha Toyota JidoshokkiInventors: Takahiro Ichihara, Hajime Watanabe, Hideki Fujiwara, Minoru Mera, Taku Adaniya, Akinobu Kanai, Naoki Usui, Tomoharu Arai
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Publication number: 20030085091Abstract: A pulley is concentrically disposed around a hollow shaft, and a one-way clutch is disposed between the hollow shaft and the pulley. At least one bearing is provided between the shaft and the pulley. In the one-way clutch, a roller as a meshing member and a coil spring as a biasing member are integrally rotated together with an outer ring. The roller moves in a meshing-releasing direction by a centrifugal force when a rotation speed of the outer ring becomes equal to or higher than a predetermined speed, and a biasing force of the coil spring has enough magnitude for permitting this movement. The pulley is provided at its inner periphery with a cam surface, and the pulley and the outer ring of the one-way clutch are integrally formed.Type: ApplicationFiled: October 2, 2002Publication date: May 8, 2003Applicant: KOYO SEIKO CO., LTD.Inventors: Takahiro Ichihara, Hideki Fujiwara
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Publication number: 20030006113Abstract: The present invention comprises a pulley, a shaft body which is rotatable relative to the pulley and is concentrically disposed radially inside of the pulley, a one-way clutch which is interposed at an annular space between the pulley and the shaft body, a rolling bearing which is disposed in the annular space adjacent to the one-way clutch in an axial direction, an inner annular seal which is provided outside the rolling bearing in the annular space, and an outer annular seal which is provided outside the inner annular seal and has a proximal end portion and a distal end side lip. The proximal end portion of the outer annular seal is fixed to one of an inner peripheral surface of the pulley and an outer peripheral surface of the shaft body, and the distal end side lip of the outer annular seal contacts the other peripheral surface.Type: ApplicationFiled: July 9, 2002Publication date: January 9, 2003Inventors: Tadahiro Terada, Michiru Ueda, Yoshitaka Nakagawa, Hideki Fujiwara, Takahiro Ichihara
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Publication number: 20020134974Abstract: A pulley unit includes a pulley and a rotor concentrically disposed for relative rotation, a one-way clutch interposed in an annular space therebetween, rolling bearings provided on opposite sides of the one-way clutch, and a seal ring for sealing the annular space. An inner diametrical surface of the pulley forms an outer ring raceway of the one-way clutch and the rolling bearing, and an outer diametrical surface of the shaft body forms an inner ring raceway of the one-way clutch and the rolling bearing. An outer diameter side of an annular portion of a retainer of the rolling bearing on the side of the seal ring is reduced so as to increase a storage volume of lubricating oil between the rolling bearing and the seal ring.Type: ApplicationFiled: March 25, 2002Publication date: September 26, 2002Inventors: Hideki Fujiwara, Takahiro Ichihara, Tadahiro Terada, Michiru Ueda