Patents by Inventor Yoshiki Ikeda
Yoshiki Ikeda 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: 10749101Abstract: A piezoelectric element includes a piezoelectric body, a first electrode, a second electrode, a third electrode, and a first through hole conductor. The piezoelectric body includes first and second main surfaces opposing each other, and first and second end surfaces opposing each other. The first electrode is disposed on the first main surface. The second electrode is disposed apart from the first electrode on the first main surface. The third electrode is disposed in the piezoelectric body to oppose the first electrode. The first through hole conductor is connected to the second and third electrodes. The piezoelectric body includes an active region and an inactive region. The active region includes a region from the first electrode to the third electrode. The inactive region includes a region from the third electrode to the second main surface.Type: GrantFiled: November 29, 2016Date of Patent: August 18, 2020Assignee: TDK CORPORATIONInventors: Yoshiki Ikeda, Kazuo Nagata, Shuto Ono, Syogo Saito
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Patent number: 10493668Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: GrantFiled: December 10, 2018Date of Patent: December 3, 2019Assignee: KAGA SANGYO CO., LTD.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Publication number: 20190105809Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: ApplicationFiled: December 10, 2018Publication date: April 11, 2019Inventors: Osamu MIZOGUCHI, Takayuki NOMURA, Hitoshi TSUJIKAWA, Yoshiki IKEDA
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Patent number: 10189189Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: GrantFiled: July 14, 2017Date of Patent: January 29, 2019Assignee: KAGA SANGYO CO., LTD.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Publication number: 20170312945Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: ApplicationFiled: July 14, 2017Publication date: November 2, 2017Inventors: Osamu MIZOGUCHI, Takayuki NOMURA, Hitoshi TSUJIKAWA, Yoshiki IKEDA
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Patent number: 9735337Abstract: A piezoelectric actuator comprises a substantially rectangular parallelepiped piezoelectric element. One outer surface of the piezoelectric element includes a first region, and a second region located such as to project from the first region and to overlap a region corresponding to an active portion in the one outer surface. The second region has a flat surface configured to come into contact with a body to be driven and to generate a frictional force therewith. The flat surface is shorter in a longitudinal direction of the piezoelectric element than in a lateral direction thereof. The flat surface is longer in the longitudinal direction of the piezoelectric element at a lateral center region thereof than at a lateral end region thereof.Type: GrantFiled: July 18, 2014Date of Patent: August 15, 2017Assignee: TDK CORPORATIONInventors: Yoshiki Ikeda, Keiji Oguchi
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Publication number: 20170155033Abstract: A piezoelectric element includes a piezoelectric body, a first electrode, a second electrode, a third electrode, and a first through hole conductor. The piezoelectric body includes first and second main surfaces opposing each other, and first and second end surfaces opposing each other. The first electrode is disposed on the first main surface. The second electrode is disposed apart from the first electrode on the first main surface. The third electrode is disposed in the piezoelectric body to oppose the first electrode. The first through hole conductor is connected to the second and third electrodes. The piezoelectric body includes an active region and an inactive region. The active region includes a region from the first electrode to the third electrode. The inactive region includes a region from the third electrode to the second main surface.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Applicant: TDK CORPORATIONInventors: Yoshiki IKEDA, Kazuo NAGATA, Shuto ONO, Syogo SAITO
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Publication number: 20170040525Abstract: A piezoelectric element includes a piezoelectric body, an external electrode, and an internal electrode. The piezoelectric body includes first and second main surfaces opposing each other. The external electrode is disposed on the first main surface and has a first polarity. The internal electrode is disposed in the piezoelectric body to oppose the external electrode in a direction in which the first main surface and the second main surface oppose each other and has a second polarity different from the first polarity. A region from the internal electrode to the external electrode in the piezoelectric body is a polarizing region, and a region from the internal electrode to the second main surface in the piezoelectric body is a non-polarizing region.Type: ApplicationFiled: August 3, 2016Publication date: February 9, 2017Applicant: TDK CORPORATIONInventors: Yoshiki IKEDA, Kazuo NAGATA, Shuto ONO, Shunsuke OGURA, Yuya SATO
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Publication number: 20160031123Abstract: A cap filled with fluid sealant is produced for subsequent attachment to an exposed portion of a fastener, such as a bolt head. The cap has a shell made of a synthetic resin formed in a generally hemispherical, hollow shape, and a recess defined by an inner surface of the shell in a generally hemispherical shape. The method includes filling the recess with a fluid sealant, which contains a mixture of a thermosetting substance and a curing agent that is freezable prior to curing, such that while the sealant is frozen, no curing takes place, and when the sealant is subsequently heated and thawed, its original fluidity is restored and curing of the thermosetting substance restarts. The sealant is then frozen while the sealant is filled in the cap. Subsequently the sealant is thawed and any condensation that forms on the sealant or the cap during the thawing is removed by drying.Type: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Patent number: 9186823Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: GrantFiled: November 22, 2013Date of Patent: November 17, 2015Assignee: KAGA SANGYO CO., LTD.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Publication number: 20150028723Abstract: A piezoelectric actuator comprises a substantially rectangular parallelepiped piezoelectric element. One outer surface of the piezoelectric element includes a first region, and a second region located such as to project from the first region and to overlap a region corresponding to an active portion in the one outer surface. The second region has a flat surface configured to come into contact with a body to be driven and to generate a frictional force therewith. The flat surface is shorter in a longitudinal direction of the piezoelectric element than in a lateral direction thereof. The flat surface is longer in the longitudinal direction of the piezoelectric element at a lateral center region thereof than at a lateral end region thereof.Type: ApplicationFiled: July 18, 2014Publication date: January 29, 2015Inventors: Yoshiki IKEDA, Keiji OGUCHI
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Publication number: 20140186483Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: ApplicationFiled: November 22, 2013Publication date: July 3, 2014Applicant: KAGA SANGYO CO., LTD.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Patent number: 8617453Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: GrantFiled: April 20, 2011Date of Patent: December 31, 2013Assignee: Kaga Sangyo Co., Ltd.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Publication number: 20110254187Abstract: Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.Type: ApplicationFiled: April 20, 2011Publication date: October 20, 2011Applicant: KAGA SANGYO CO., LTD.Inventors: Osamu Mizoguchi, Takayuki Nomura, Hitoshi Tsujikawa, Yoshiki Ikeda
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Patent number: 5193323Abstract: A safety monitoring device is provided for the use in an active seismic response and wind control system for exerting a control force, which restrains the vibration of a structure due to disturbances such as earthquake and wind, from an actuator in response to the above vibration. The safety monitoring device measures the work done of a seismic response control force and judges the work done of the seismic response control force to be positive or negative, so that whether or not the seismic response control is properly carried out by the actuator is judged. If any abnormality is found, a stop signal or the like is generated to stop the seismic response and wind control system, whereby the safety of the structure is ensured.Type: GrantFiled: May 3, 1991Date of Patent: March 16, 1993Assignee: Kajima CorporationInventors: Koji Ishii, Masao Iizuka, Jun Tagami, Toshikazu Yamada, Katsuyasu Sasaki, Yoshiki Ikeda
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Patent number: 5046290Abstract: A safety monitoring device is provided for the use in an active seismic response and wind control system for exerting a control force, which restrains the vibration of a structure due to disturbances such as earthquake and wind, from an actuator in response to the above vibration. The safety monitoring device measures the work done of a seismic response control force and judges the work done of the seismic response control force to be positive or negative, so that whether or not the seismic response control is properly carried out by the actuator is judged. If any abnormality is found, a stop signal or the like is generated to stop the seismic response and wind control system, whereby the safety of the structure is ensured.Type: GrantFiled: February 20, 1990Date of Patent: September 10, 1991Assignee: Kajima CorporationInventors: Koji Ishit, Masao Iizuka, Jun Tagami, Toshikazu Yamada, Katsuyasu Sasaki, Yoshiki Ikeda