Patents by Inventor Yasuhiro Kuratani
Yasuhiro Kuratani 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: 20200039475Abstract: A cleaning device for an imaging unit includes a housing that holds an imaging section, a protection cover provided in the visual field of the imaging section, a vibrator section that vibrates the protection cover, and a cleaning nozzle that discharges a cleaning liquid. The cleaning liquid discharged by the discharge section reaches a surface of side of the protection cover that is opposite to the side thereof adjacent to or in a vicinity of the imaging section. According to the vibrator section vibrating the protection cover, a portion of surface of the protection cover exhibits an amount of displacement larger than that of a portion of surface of the protection cover that the discharged cleaning liquid has reached.Type: ApplicationFiled: October 10, 2019Publication date: February 6, 2020Inventors: Shinichiro ICHIGUCHI, Katsumi FUJIMOTO, Chikahiro HORIGUCHI, Kenji NISHIYAMA, Yasuhiro KURATANI
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Patent number: 10461571Abstract: A module includes a charging circuit and a driven unit. The charging circuit includes a power generation element and an electric storage element. The power generation element is connected to the electric storage element to charge the electric storage element. The electric storage element is connected to the driven unit to drive the driven unit with electric power stored. The power-generating voltage of the power generation element has a value equal to or more than the charging voltage of the electric storage element. The electric storage element is a secondary battery including a lithium-transition metal oxide in a positive electrode active material layer, and a lithium-titanium oxide of spinel-type crystal structure in a negative electrode active material layer.Type: GrantFiled: September 12, 2016Date of Patent: October 29, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Yasuharu Nakai, Masaharu Itaya, Yusuke Yoshida, Yasuhiro Kuratani, Masako Tenpaku, Yoshifumi Wada
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Publication number: 20190176195Abstract: A vibrating device includes a tubular body including a first end, a second end, and a plurality of side surfaces that connect the first and second ends, piezoelectric vibrators that are fixed to the tubular body and vibrate the tubular body, and a light transmitting body unit that is directly or indirectly connected to the second end of the tubular body.Type: ApplicationFiled: February 13, 2019Publication date: June 13, 2019Inventors: Katsumi FUJIMOTO, Chikahiro HORIGUCHI, Kenji NISHIYAMA, Yasuhiro KURATANI, Shinichiro ICHIGUCHI
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Publication number: 20190151897Abstract: A vibrating device includes a tubular body including first and second end surfaces, and a side wall portion that connects the first and second end surfaces, a piezoelectric vibrator provided on the first end surface of the tubular body, and a light transmitting body that is directly or indirectly connected to the second end surface and covers an opening in the second end surface of the tubular body. A connecting portion is connected to the first end surface of the tubular body inside or outside an opening in the first end surface. A tubular bent portion is connected to a surface of the connecting portion that faces toward the second end surface of the tubular body. The tubular bent portion extends in a direction from the first end surface toward the second end surface of the tubular body.Type: ApplicationFiled: January 28, 2019Publication date: May 23, 2019Inventors: Katsumi FUJIMOTO, Chikahiro HORIGUCHI, Kenji NISHIYAMA, Yasuhiro KURATANI, Shinichiro ICHIGUCHI
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Publication number: 20160380474Abstract: A module includes a charging circuit and a driven unit. The charging circuit includes a power generation element and an electric storage element. The power generation element is connected to the electric storage element to charge the electric storage element. The electric storage element is connected to the driven unit to drive the driven unit with electric power stored. The power-generating voltage of the power generation element has a value equal to or more than the charging voltage of the electric storage element. The electric storage element is a secondary battery including a lithium-transition metal oxide in a positive electrode active material layer, and a lithium-titanium oxide of spinel-type crystal structure in a negative electrode active material layer.Type: ApplicationFiled: September 12, 2016Publication date: December 29, 2016Inventors: Yasuharu Nakai, Masaharu ltaya, Yusuke Yoshida, Yasuhiro Kuratani, Masako Tenpaku, Yoshifumi Wada
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Patent number: 7809217Abstract: In a polarization-independent light control element operable at low voltage, optical waveguides are provided in an X-cut first substrate and control electrodes are disposed thereabove. Optical waveguides are provided in a Z-cut second substrate and control electrodes are disposed thereabove. The control electrodes of the first and second substrates are connected in series to each other in the propagation direction of light. This allows a transverse electric component and a transverse magnetic component to be efficiently controlled because of the incorporation of high electro-optical effects of the optical waveguides of the first substrate on the transverse electric component and high electro-optical effects of the optical waveguides of the second substrate on the transverse magnetic component.Type: GrantFiled: July 20, 2009Date of Patent: October 5, 2010Assignee: Murata Manufacturing Co., Ltd.Inventors: Yasuhiro Kuratani, Hideya Horiuchi
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Publication number: 20090290829Abstract: In a polarization-independent light control element operable at low voltage, optical waveguides are provided in an X-cut first substrate and control electrodes are disposed thereabove. Optical waveguides are provided in a Z-cut second substrate and control electrodes are disposed thereabove. The control electrodes of the first and second substrates are connected in series to each other in the propagation direction of light. This allows a transverse electric component and a transverse magnetic component to be efficiently controlled because of the incorporation of high electro-optical effects of the optical waveguides of the first substrate on the transverse electric component and high electro-optical effects of the optical waveguides of the second substrate on the transverse magnetic component.Type: ApplicationFiled: July 20, 2009Publication date: November 26, 2009Applicant: Murata Manufacturing Co., Ltd.Inventors: Yasuhiro KURATANI, Hideya HORIUCHI
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Patent number: 6879225Abstract: A surface acoustic wave device includes a Y-cut, X-propagation LiTaO3 substrate, at least one interdigital transducer provided on the LiTaO3 substrate and made of Al or a metal containing Al as a major component, and an SiO2 film provided on the surface of the LiTaO3 substrate so as to cover the interdigital transducer, wherein the thickness Hs of the SiO2 film normalized by the wavelength ? of a surface acoustic wave and the cut angle ? of the LiTaO3 substrate are set to be in any one of the ranges represented by formulae (1) to (8): in the case of 0.00<Hs?0.05, 30°<?<36°??(1) in the case of 0.05<Hs?0.10, 29°<?<36°??(2) in the case of 0.10<Hs?0.15, 28°<?<36°??(3) in the case of 0.15<Hs?0.20, 27°<?<36°??(4) in the case of 0.20<Hs?0.25, 26°<?<36°??(5) in the case of 0.25<Hs?0.30, 25°<?<35°??(6) in the case of 0.30<Hs?0.35, 23°<?<34°??(7) in the case of 0.35<Hs?0.Type: GrantFiled: July 1, 2003Date of Patent: April 12, 2005Assignee: Murata Manufacturing Co., Ltd.Inventors: Michio Kadota, Hideya Horiuchi, Takeshi Nakao, Yasuhiro Kuratani, Masakazu Mimura, Junya Ago
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Patent number: 6848155Abstract: A method of manufacturing an edge reflection type surface acoustic wave device using a Shear Horizontal type surface acoustic wave includes the steps of making a first half cut defining a first end surface portions having a smooth surface, that is, opposing two end surfaces which function as reflection end surfaces, from the upper surface of a piezoelectric substrate after at least one of a plurality of IDTs has been formed on the upper surface of the piezoelectric substrate, making a second half cut for forming second end surface portions having a rough surface after making the first cut, and making a full cut for cutting the piezoelectric substrate so as to reach the lower surface of the piezoelectric substrate outside of the second end surface portions in the surface acoustic wave propagation direction.Type: GrantFiled: May 11, 2004Date of Patent: February 1, 2005Assignee: Murata Manufacturing Co., Ltd.Inventors: Yasuhiro Kuratani, Takao Mukai, Tomoyasu Miyata, Hideharu Yoshikawa
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Publication number: 20040207289Abstract: A method of manufacturing an edge reflection type surface acoustic wave device using a Shear Horizontal type surface acoustic wave includes the steps of making a first half cut defining a first end surface portions having a smooth surface, that is, opposing two end surfaces which function as reflection end surfaces, from the upper surface of a piezoelectric substrate after at least one of a plurality of IDTs has been formed on the upper surface of the piezoelectric substrate, making a second half cut for forming second end surface portions having a rough surface after making the first cut, and making a full cut for cutting the piezoelectric substrate so as to reach the lower surface of the piezoelectric substrate outside of the second end surface portions in the surface acoustic wave propagation direction.Type: ApplicationFiled: May 11, 2004Publication date: October 21, 2004Applicant: Murata Manufacturing Co., Ltd.Inventors: Yasuhiro Kuratani, Takao Mukai, Tomoyasu Miyata, Hideharu Yoshikawa
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Patent number: 6806796Abstract: An end-surface reflection type surface acoustic wave filter is capable of increasing an attenuation amount outside a pass band while insertion loss characteristics are not seriously deteriorated. The filter is a longitudinally coupled resonator type surface acoustic wave filter using an SH type surface acoustic wave, which has first and second grooves formed in a piezoelectric substrate at the top surface thereof so as to be substantially parallel to each other and spaced from each other by a predetermined distance. In addition, IDTs which are provided between the grooves for defining the longitudinally coupled resonator type surface acoustic wave filter, reflection end-surfaces disposed on side surfaces of the first and the second grooves at the IDT sides, and one of a resin-coating layer and a protective layer made of SiO2, are provided on the top surface of the piezoelectric substrate.Type: GrantFiled: December 2, 2003Date of Patent: October 19, 2004Assignee: Murata Manfacturing Co., Ltd.Inventors: Michio Kadota, Hideya Horiuchi, Junya Ago, Takeshi Nakao, Yasuhiro Kuratani
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Patent number: 6791238Abstract: A method of manufacturing an edge reflection type surface acoustic wave device using a Shear Horizontal type surface acoustic wave includes the steps of making a first half cut defining first end surface portions having a smooth surface, that is, opposing two end surfaces which function as reflection end surfaces, from the upper surface of a piezoelectric substrate after at least one of a plurality of IDTs has been formed on the upper surface of the piezoelectric substrate, making a second half cut for forming second end surface portions having a rough surface after making the first cut, and making a full cut for cutting the piezoelectric substrate so as to reach the lower surface of the piezoelectric substrate outside of the second end surface portions in the surface acoustic wave propagation direction.Type: GrantFiled: September 13, 2002Date of Patent: September 14, 2004Assignee: Murata Manufacturing Co., Ltd.Inventors: Yasuhiro Kuratani, Takao Mukai, Tomoyasu Miyata, Hideharu Yoshikawa
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Patent number: 6784764Abstract: An end-surface reflection type surface acoustic wave filter is capable of increasing an attenuation amount outside a pass band while insertion loss characteristics are not seriously deteriorated. The filter is a longitudinally coupled resonator type surface acoustic wave filter using an SH type surface acoustic wave, which has first and second grooves formed in a piezoelectric substrate at the top surface thereof so as to be substantially parallel to each other and spaced from each other by a predetermined distance. In addition, IDTs which are provided between the grooves for defining the longitudinally coupled resonator type surface acoustic wave filter, reflection end-surfaces disposed on side surfaces of the first and the second grooves at the IDT sides, and one of a resin-coating layer and a protective layer made of SiO2, are provided on the top surface of the piezoelectric substrate.Type: GrantFiled: August 14, 2002Date of Patent: August 31, 2004Assignee: Murata Manufacturing Co., Ltd.Inventors: Michio Kadota, Hideya Horiuchi, Junya Ago, Takeshi Nakao, Yasuhiro Kuratani
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Publication number: 20040108791Abstract: An end-surface reflection type surface acoustic wave filter is capable of increasing an attenuation amount outside a pass band while insertion loss characteristics are not seriously deteriorated. The filter is a longitudinally coupled resonator type surface acoustic wave filter using an SH type surface acoustic wave, which has first and second grooves formed in a piezoelectric substrate at the top surface thereof so as to be substantially parallel to each other and spaced from each other by a predetermined distance. In addition, IDTs which are provided between the grooves for defining the longitudinally coupled resonator type surface acoustic wave filter, reflection end-surfaces disposed on side surfaces of the first and the second grooves at the IDT sides, and one of a resin-coating layer and a protective layer made of SiO2, are provided on the top surface of the piezoelectric substrate.Type: ApplicationFiled: December 2, 2003Publication date: June 10, 2004Applicant: Murata Manufacturing Co., LtdInventors: Michio Kadota, Hideya Horiuchi, Junya Ago, Takeshi Nakao, Yasuhiro Kuratani
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Publication number: 20040061574Abstract: A surface acoustic wave device includes a Y-cut, X-propagation LiTaO3 substrate, at least one interdigital transducer provided on the LiTaO3 substrate and made of Al or a metal containing Al as a major component, and an SiO2 film provided on the surface of the LiTaO3 substrate so as to cover the interdigital transducer, wherein the thickness Hs of the SiO2 film normalized by the wavelength &lgr; of a surface acoustic wave and the cut angle &thgr; of the LiTaO3 substrate are set to be in any one of the ranges represented by formulae (1) to (8):Type: ApplicationFiled: July 1, 2003Publication date: April 1, 2004Applicant: Murata Manufacturing Co., Ltd.Inventors: Michio Kadota, Hideya Horiuchi, Takeshi Nakao, Yasuhiro Kuratani, Masakazu Mimura, Junya Ago
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Publication number: 20030071539Abstract: A method of manufacturing an edge reflection type surface acoustic wave device using a Shear Horizontal type surface acoustic wave includes the steps of making a first half cut defining first end surface portions having a smooth surface, that is, opposing two end surfaces which function as reflection end surfaces, from the upper surface of a piezoelectric substrate after at least one of a plurality of IDTs has been formed on the upper surface of the piezoelectric substrate, making a second half cut for forming second end surface portions having a rough surface after making the first cut, and making a full cut for cutting the piezoelectric substrate so as to reach the lower surface of the piezoelectric substrate outside of the second end surface portions in the surface acoustic wave propagation direction.Type: ApplicationFiled: September 13, 2002Publication date: April 17, 2003Inventors: Yasuhiro Kuratani, Takao Mukai, Tomoyasu Miyata, Hideharu Yoshikawa
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Publication number: 20030034859Abstract: An end-surface reflection type surface acoustic wave filter is capable of increasing an attenuation amount outside a pass band while insertion loss characteristics are not seriously deteriorated. The filter is a longitudinally coupled resonator type surface acoustic wave filter using an SH type surface acoustic wave, which has first and second grooves formed in a piezoelectric substrate at the top surface thereof so as to be substantially parallel to each other and spaced from each other by a predetermined distance. In addition, IDTs which are provided between the grooves for defining the longitudinally coupled resonator type surface acoustic wave filter, reflection end-surfaces disposed on side surfaces of the first and the second grooves at the IDT sides, and one of a resin-coating layer and a protective layer made of SiO2, are provided on the top surface of the piezoelectric substrate.Type: ApplicationFiled: August 14, 2002Publication date: February 20, 2003Inventors: Michio Kadota, Hideya Horiuchi, Junya Ago, Takeshi Nakao, Yasuhiro Kuratani