Patents by Inventor Tetsuyuki Taniguchi
Tetsuyuki Taniguchi 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: 11944999Abstract: A vibration device includes a bimorph type piezoelectric element having a first main surface and a second main surface facing each other and a vibration member bonded to the second main surface of the piezoelectric element. The piezoelectric element has a first active region disposed closer to the first main surface between the first and second main surfaces and a second active region disposed closer to the second main surface than the first active region between the first and second main surfaces. When a force generated in the first active region is F1, a force generated in the second active region is F2, and a force by which the vibration member restrains the second active region is Fr, F2?F1?Fr is satisfied.Type: GrantFiled: February 21, 2019Date of Patent: April 2, 2024Assignee: TDK CORPORATIONInventors: Yoshiki Ohta, Hideya Sakamoto, Kazushi Tachimoto, Yoshikazu Shimura, Tetsuyuki Taniguchi, Akihiro Takeda
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Patent number: 11930713Abstract: A piezoelectric element includes a piezoelectric body, an electrode layer, and a reinforcing layer. The piezoelectric body has a first main surface, a second main surface, and a side surface. The first main surface and the second main surface oppose each other. The side surface extends in an opposing direction in which the first main surface and the second main surface oppose each other in such a way as to connect the first main surface and the second main surface. The electrode layer is provided in the piezoelectric body. The reinforcing layer is provided on the first main surface. The electrode layer is provided opposing the first main surface and apart from the side surface. When viewed from the opposing direction, the electrode layer has a corner. When viewed from the opposing direction, the reinforcing layer overlaps the corner.Type: GrantFiled: April 3, 2019Date of Patent: March 12, 2024Assignee: TDK CORPORATIONInventors: Yoshiki Ohta, Hideya Sakamoto, Kazushi Tachimoto, Yoshikazu Shimura, Tetsuyuki Taniguchi, Akihiro Takeda
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Patent number: 11665967Abstract: A vibration device includes a piezoelectric vibrator having a piezoelectric element and a diaphragm having a pair of main surfaces facing each other, the piezoelectric element being bonded to the main surface, a vibration member where the piezoelectric vibrator is disposed, and an adhesive member disposed between the diaphragm and the vibration member and bonding the diaphragm and the vibration member. Each of the pair of main surfaces of the diaphragm has a rectangular shape when viewed from a facing direction of the pair of main surfaces, and the adhesive member is disposed in a facing manner on at least a pair of sides of the main surfaces.Type: GrantFiled: October 25, 2018Date of Patent: May 30, 2023Assignee: TDK CORPORATIONInventors: Ryuhei Sasaki, Yoshikazu Shimura, Yoshiki Ohta, Kazushi Tachimoto, Hideya Sakamoto, Tetsuyuki Taniguchi, Akihiro Takeda
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Patent number: 11548030Abstract: A piezoelectric element includes a piezoelectric element body including a first principal surface and a second principal surface opposing each other, and a plurality of external electrodes disposed on the first principal surface. A vibration member includes a third principal surface opposing the second principal surface. The piezoelectric element is joined to the third principal surface. A wiring member is electrically connected to the piezoelectric element. The wiring member includes a region located on the plurality of external electrodes and joined to the plurality of external electrodes. The region of the wiring member monolithically covers the plurality of external electrodes when viewed from a direction orthogonal to the first principal surface.Type: GrantFiled: October 25, 2018Date of Patent: January 10, 2023Assignee: TDK CORPORATIONInventors: Yoshiki Ohta, Kazushi Tachimoto, Hideya Sakamoto, Tetsuyuki Taniguchi, Tatsuya Taki, Tomohiro Takeda, Akihiro Takeda
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Publication number: 20210384409Abstract: A vibration device includes a piezoelectric vibrator having a piezoelectric element and a diaphragm having a pair of main surfaces facing each other, the piezoelectric element being bonded to the main surface, a vibration member where the piezoelectric vibrator is disposed, and an adhesive member disposed between the diaphragm and the vibration member and bonding the diaphragm and the vibration member. Each of the pair of main surfaces of the diaphragm has a rectangular shape when viewed from a facing direction of the pair of main surfaces, and the adhesive member is disposed in a facing manner on at least a pair of sides of the main surfaces.Type: ApplicationFiled: October 25, 2018Publication date: December 9, 2021Applicant: TDK CORPORATIONInventors: Ryuhei SASAKI, Yoshikazu SHIMURA, Yoshiki OHTA, Kazushi TACHIMOTO, Hideya SAKAMOTO, Tetsuyuki TANIGUCHI, Akihiro TAKEDA
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Patent number: 11189777Abstract: A multilayer piezoelectric element includes a piezoelectric element body, a first internal electrode and a second internal electrode, a plurality of first connecting conductors, a plurality of second connecting conductors, and an external member. The piezoelectric element body is formed by laminating a plurality of piezoelectric element body layer. The piezoelectric element body includes a first main surface and a second main surface, and a side surface. The plurality of first connecting conductors are connected to the first internal electrode. The plurality of second connecting conductors are connected to the second internal electrode. The external member is conductive and is bonded to the first main surface in such a way as to cover the first end portions of the plurality of first connecting conductors. The external member is electrically connected to the plurality of first connecting conductors.Type: GrantFiled: September 12, 2018Date of Patent: November 30, 2021Assignee: TDK CORPORATIONInventors: Yoshiki Ohta, Tetsuyuki Taniguchi, Hideya Sakamoto, Kazushi Tachimoto, Junpei Kikuchi, Akihiro Takeda
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Publication number: 20200406297Abstract: A vibration device includes a bimorph type piezoelectric element having a first main surface and a second main surface facing each other and a vibration member bonded to the second main surface of the piezoelectric element. The piezoelectric element has a first active region disposed closer to the first main surface between the first and second main surfaces and a second active region disposed closer to the second main surface than the first active region between the first and second main surfaces. When a force generated in the first active region is F1, a force generated in the second active region is F2, and a force by which the vibration member restrains the second active region is Fr, F2?F1?Fr is satisfied.Type: ApplicationFiled: February 21, 2019Publication date: December 31, 2020Applicant: TDK CORPORATIONInventors: Yoshiki OHTA, Hideya SAKAMOTO, Kazushi TACHIMOTO, Yoshikazu SHIMURA, Tetsuyuki TANIGUCHI, Akihiro TAKEDA
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Publication number: 20200282426Abstract: A piezoelectric element includes a piezoelectric element body including a first principal surface and a second principal surface opposing each other, and a plurality of external electrodes disposed on the first principal surface. A vibration member includes a third principal surface opposing the second principal surface. The piezoelectric element is joined to the third principal surface. A wiring member is electrically connected to the piezoelectric element. The wiring member includes a region located on the plurality of external electrodes and joined to the plurality of external electrodes. The region of the wiring member monolithically covers the plurality of external electrodes when viewed from a direction orthogonal to the first principal surface.Type: ApplicationFiled: October 25, 2018Publication date: September 10, 2020Applicant: TDK CORPORATIONInventors: Yoshiki OHTA, Kazushi TACHIMOTO, Hideya SAKAMOTO, Tetsuyuki TANIGUCHI, Tatsuya TAKI, Tomohiro TAKEDA, Akihiro TAKEDA
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Publication number: 20190312190Abstract: A piezoelectric element includes a piezoelectric body, an electrode layer, and a reinforcing layer. The piezoelectric body has a first main surface, a second main surface, and a side surface. The first main surface and the second main surface oppose each other. The side surface extends in an opposing direction in which the first main surface and the second main surface oppose each other in such a way as to connect the first main surface and the second main surface. The electrode layer is provided in the piezoelectric body. The reinforcing layer is provided on the first main surface. The electrode layer is provided opposing the first main surface and apart from the side surface. When viewed from the opposing direction, the electrode layer has a corner. When viewed from the opposing direction, the reinforcing layer overlaps the corner.Type: ApplicationFiled: April 3, 2019Publication date: October 10, 2019Applicant: TDK CORPORATIONInventors: Yoshiki OHTA, Hideya SAKAMOTO, Kazushi TACHIMOTO, Yoshikazu SHIMURA, Tetsuyuki TANIGUCHI, Akihiro TAKEDA
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Publication number: 20190088851Abstract: A multilayer piezoelectric element includes a piezoelectric element body, a first internal electrode and a second internal electrode, a plurality of first connecting conductors, a plurality of second connecting conductors, and an external member. The piezoelectric element body is formed by laminating a plurality of piezoelectric element body layer. The piezoelectric element body includes a first main surface and a second main surface, and a side surface. The plurality of first connecting conductors are connected to the first internal electrode. The plurality of second connecting conductors are connected to the second internal electrode. The external member is conductive and is bonded to the first main surface in such a way as to cover the first end portions of the plurality of first connecting conductors. The external member is electrically connected to the plurality of first connecting conductors.Type: ApplicationFiled: September 12, 2018Publication date: March 21, 2019Applicant: TDK CORPORATIONInventors: Yoshiki OHTA, Tetsuyuki TANIGUCHI, Hideya SAKAMOTO, Kazushi TACHIMOTO, Junpei KIKUCHI, Akihiro TAKEDA
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Patent number: 7949314Abstract: Provided is a transmission output control apparatus including: a level control circuit operable to adjust a level of an inputted signal; a power amplifying circuit including a plurality of amplifying stages and being operable to amplify the signal whose level has been adjusted by the level control circuit; an antenna operable to transmit the signal amplified by the power amplifying circuit; a memory unit operable to prestore a plurality of control signals; a control signal generating unit operable to select and extract, from the memory unit, one of the control signals that is in accordance with a transmission level instructed by a base station, and supply the extracted control signal to the level control circuit; and a detection unit operable to detect a signal at a midway amplifying stage of the power amplifying circuit, where a transmission level of the level control circuit is monitored according to an output of the detection unit.Type: GrantFiled: June 20, 2006Date of Patent: May 24, 2011Assignee: Kyocera CorporationInventors: Tetsuyuki Taniguchi, Hitoshi Tsuchiya
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Patent number: 7809396Abstract: The present invention provides a mobile phone having a control mechanism for controlling transmission power according to changes in various environmental conditions. A mobile phone for performing transmission at a transmission frequency of an assigned channel, the mobile phone comprising: a temperature detecting unit operable to detect a temperature in the mobile phone; a correction value specifying unit operable to specify a correction value for correcting transmission power, according to the temperature detected by the temperature detecting unit and the transmission frequency; and a control unit operable to control the transmission power based on the correction value specified by the correction value specifying unit.Type: GrantFiled: November 24, 2005Date of Patent: October 5, 2010Assignee: Kyocera CorporationInventors: Seita Miyauchi, Kosuke Nagase, Tetsuyuki Taniguchi, Seiji Nanitani
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Publication number: 20080268915Abstract: The present invention provides a mobile phone having a control mechanism for controlling transmission power according to changes in various environmental conditions. A mobile phone for performing transmission at a transmission frequency of an assigned channel, the mobile phone comprising: a temperature detecting unit operable to detect a temperature in the mobile phone; a correction value specifying unit operable to specify a correction value for correcting transmission power, according to the temperature detected by the temperature detecting unit and the transmission frequency; and a control unit operable to control the transmission power based on the correction value specified by the correction value specifying unit.Type: ApplicationFiled: November 24, 2005Publication date: October 30, 2008Applicants: SANYO ELECTRIC CO., LTD., SKY CO., LTD.Inventors: Seita Miyauchi, Kosuke Nagase, Tetsuyuki Taniguchi, Seiji Nanitani
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Publication number: 20060286947Abstract: Provided is a transmission output control apparatus including: a level control circuit operable to adjust a level of an inputted signal; a power amplifying circuit including a plurality of amplifying stages and being operable to amplify the signal whose level has been adjusted by the level control circuit; an antenna operable to transmit the signal amplified by the power amplifying circuit; a memory unit operable to prestore a plurality of control signals; a control signal generating unit operable to select and extract, from the memory unit, one of the control signals that is in accordance with a transmission level instructed by a base station, and supply the extracted control signal to the level control circuit; and a detection unit operable to detect a signal at a midway amplifying stage of the power amplifying circuit, where a transmission level of the level control circuit is monitored according to an output of the detection unit.Type: ApplicationFiled: June 20, 2006Publication date: December 21, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Tetsuyuki Taniguchi, Hitoshi Tsuchiya
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Patent number: 4909866Abstract: A high strength spring is made of steel of which composition consists of 0.6 to 0.7 wt % of C, 1.2 to 1.6 wt % of Si, 0.5 to 0.8 wt % of Mn, 0.5 to 0.8 wt % of Cr, 0.05 to 0.2 wt % in total of one or more than one of V, Mo, Nb and Ta and the balance of Fe and inevitable impurities. The steel is limited in particle size of non-metallic inclusions in such a way that the maximum particle size of the non-metallic inclusions is equal to or smaller than 15 .mu.m. The spring is applied at a portion adjacent the outer surface thereof with a residual compression stress in such a way that the maximum of the residual compression stress ranges from 85 to 110 Kgf/mm.sup.2. The spring is further process so as to have such a surface roughness that is equal to or smaller than 15 .mu.m.Type: GrantFiled: September 22, 1988Date of Patent: March 20, 1990Assignees: Nissan Motor Co., Ltd., NHK Spring Co., Ltd.Inventors: Makoto Abe, Tetsuyuki Taniguchi, Tsuyoshi Kuriki, Noritoshi Takamura, Naoki Terakado, Kaoru Hatayama
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Patent number: D933616Type: GrantFiled: May 3, 2018Date of Patent: October 19, 2021Assignee: TDK CORPORATIONInventors: Yoshiki Ohta, Yoshikazu Shimura, Ryuhei Sasaki, Kazushi Tachimoto, Hideya Sakamoto, Tetsuyuki Taniguchi, Akihiro Takeda