Patents by Inventor Masato Murahashi
Masato Murahashi 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: 9848268Abstract: There are provided an acoustic generator capable of generating a high-quality sound having little distortion, and an acoustic generation device and an electronic apparatus using the same. An acoustic generator has a vibration body, a first exciter, a second exciter, a first damping material and a second damping material. The vibration body has two surfaces which are positioned with a gap therebetween in a first direction. The first exciter and the second exciter are disposed on the vibration body. The first damping material is disposed on the vibration body and has a first portion which overlaps the first exciter when viewed in the first direction. The second damping material is disposed on the vibration body and has a second portion which overlaps the second exciter when viewed in the first direction.Type: GrantFiled: January 13, 2015Date of Patent: December 19, 2017Assignee: KYOCERA CORPORATIONInventors: Noriyuki Kushima, Kentarou Miyazato, Tooru Takahashi, Shuichi Fukuoka, Kenji Yamakawa, Masato Murahashi, Hiroshi Ninomiya
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Publication number: 20160337759Abstract: There are provided an acoustic generator capable of generating a high-quality sound having little distortion, and an acoustic generation device and an electronic apparatus using the same. An acoustic generator has a vibration body, a first exciter, a second exciter, a first damping material and a second damping material. The vibration body has two surfaces which are positioned with a gap therebetween in a first direction. The first exciter and the second exciter are disposed on the vibration body. The first damping material is disposed on the vibration body and has a first portion which overlaps the first exciter when viewed in the first direction. The second damping material is disposed on the vibration body and has a second portion which overlaps the second exciter when viewed in the first direction.Type: ApplicationFiled: January 13, 2015Publication date: November 17, 2016Applicant: KYOCERA CorporationInventors: Noriyuki KUSHIMA, Kentarou MIYAZATO, Tooru TAKAHASHI, Shuichi FUKUOKA, Kenji YAMAKAWA, Masato MURAHASHI, Hiroshi NINOMIYA
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Patent number: 9398378Abstract: An acoustic generator according to an embodiment includes a film-shaped vibrating body, a flame, and an exciter. The frame is configured to fix at least both ends of the vibrating body in a second direction perpendicular to a first direction that is a thickness direction of the vibrating body. The exciter is disposed on the vibrating body, and is configured to vibrate itself to vibrate the vibrating body. The vibrating body has a value of an average coefficient of linear expansion during a temperature change from 90° C. to 40° C. set to be not less than a value of the average coefficient of linear expansion of the vibrating body during a temperature change from 40° C. to 90° C., and set to be not less than a value of an average coefficient of linear expansion of the flame during a temperature change from 90° C. to 40° C.Type: GrantFiled: December 21, 2013Date of Patent: July 19, 2016Assignee: Kyocera CorporationInventors: Kentarou Miyazato, Shuichi Fukuoka, Noriyuki Kushima, Takeshi Hirayama, Tooru Takahashi, Masato Murahashi
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Publication number: 20150358738Abstract: An acoustic generator according to an embodiment includes a film-shaped vibrating body, a flame, and an exciter. The frame is configured to fix at least both ends of the vibrating body in a second direction perpendicular to a first direction that is a thickness direction of the vibrating body. The exciter is disposed on the vibrating body, and is configured to vibrate itself to vibrate the vibrating body. The vibrating body has a value of an average coefficient of linear expansion during a temperature change from 90° C. to 40° C. set to be not less than a value of the average coefficient of linear expansion of the vibrating body during a temperature change from 40° C. to 90° C., and set to be not less than a value of an average coefficient of linear expansion of the flame during a temperature change from 90° C. to 40° C.Type: ApplicationFiled: December 21, 2013Publication date: December 10, 2015Applicant: KYOCERA CORPORATIONInventors: Kentarou MIYAZATO, Shuichi FUKUOKA, Noriyuki KUSHIMA, Takeshi HIRAYAMA, Tooru TAKAHASHI, Masato MURAHASHI
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Patent number: 9154885Abstract: Provided are a sound generator including a frame body, a vibration body provided to the frame body in a state where a tensile force is applied to the vibration body, and a piezoelectric vibration element provided to the vibration body. In the sound generator, when a first direction and a second direction are directions along a main surface of the vibration body and intersect with each other, the tensile force in the first direction and the tensile force in the second direction are different from each other. A sound generation device and an electronic apparatus including the sound generator are also provided.Type: GrantFiled: August 12, 2013Date of Patent: October 6, 2015Assignee: KYOCERA CORPORATIONInventors: Noriyuki Kushima, Shuichi Fukuoka, Takeshi Hirayama, Masato Murahashi, Hiroshi Ninomiya
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Publication number: 20150036846Abstract: Provided are a sound generator including a frame body, a vibration body provided to the frame body in a state where a tensile force is applied to the vibration body, and a piezoelectric vibration element provided to the vibration body. In the sound generator, when a first direction and a second direction are directions along a main surface of the vibration body and intersect with each other, the tensile force in the first direction and the tensile force in the second direction are different from each other. A sound generation device and an electronic apparatus including the sound generator are also provided.Type: ApplicationFiled: August 12, 2013Publication date: February 5, 2015Applicant: KYOCERA CorporationInventors: Noriyuki Kushima, Shuichi Fukuoka, Takeshi Hirayama, Masato Murahashi, Hiroshi Ninomiya
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Patent number: 7893600Abstract: A capacitor-built-in type piezoelectric resonator which is thin and small in size, and has high reliability is formed by forming a pair of vibrating electrodes on both principal surfaces of a piezoelectric substrate, and joining a sealing substrate made of a ceramic material to form a capacitance via a frame onto one vibrating electrode, and joining a sealing substrate made of a resin material via a frame onto the other vibrating electrode.Type: GrantFiled: August 31, 2005Date of Patent: February 22, 2011Assignee: Kyocera CorporationInventors: Junji Furue, Masato Murahashi, Yuuji Hata
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Patent number: 7745980Abstract: There is provided a piezoelectric resonant element having excellent electrical characteristics in which spurious is suppressed. The piezoelectric resonant element (10) is constituted by sticking a pair of oscillatory electrodes (12, 13), respectively, to both major surfaces of a rectangular piezoelectric substrate (11). In the nonopposing regions of both the oscillatory electrodes (12, 13), extending portions (12c, 13c) are provided to extend in the opposite directions outward from the center X of the opposing region.Type: GrantFiled: August 30, 2005Date of Patent: June 29, 2010Assignee: Kyocera CorporationInventors: Junji Furue, Masato Murahashi, Yuuji Hata
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Publication number: 20090152997Abstract: There is provided a piezoelectric resonant element having excellent electrical characteristics in which spurious is suppressed. The piezoelectric resonant element (10) is constituted by sticking a pair of oscillatory electrodes (12, 13), respectively, to both major surfaces of a rectangular piezoelectric substrate (11). In the nonopposing regions of both the oscillatory electrodes (12, 13), extending portions (12c, 13c) are provided to extend in the opposite directions outward from the center X of the opposing region.Type: ApplicationFiled: August 30, 2005Publication date: June 18, 2009Applicant: KYOCERA CORPORATIONInventors: Junji Furue, Masato Murahashi, Yuuji Hata
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Publication number: 20090045695Abstract: A capacitor-built-in type piezoelectric resonator which is thin and small in size, and has high reliability is formed by forming a pair of vibrating electrodes on both principal surfaces of a piezoelectric substrate, and joining a sealing substrate made of a ceramic material to form a capacitance via a frame onto one vibrating electrode, and joining a sealing substrate made of a resin material via a frame onto the other vibrating electrode.Type: ApplicationFiled: August 31, 2005Publication date: February 19, 2009Applicant: KYOCERA CORPORATIONInventors: Junji Furue, Masato Murahashi, Yuuji Hata