Patents by Inventor Katsunori Akane
Katsunori Akane 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: 9065418Abstract: An electrode material capable of making more satisfactory the dispersion at the time of production and the aging property of a resonator than Au and capable of reducing the price as compared to Au. An resonator electrode material including a ternary alloy composed of Au and two metals M1 and M2, and being used as an excitation electrode to excite oscillation in a piezoelectric element, wherein the two metals M1 and M2 are, respectively, (a) metal M1: a metal exhibiting a tendency to decrease the temporal frequency property (?f1/f1) from the reference value f1, and (b) metal M2: a metal exhibiting a tendency to increase the temporal frequency property (?f1/f1) from the reference value f1. The metal M1 is preferably at least any one of Ag, Al and Ni, and the metal M2 is preferably at least any one of Pd, Ru, Pt, Ir, Rh and Cu.Type: GrantFiled: April 28, 2010Date of Patent: June 23, 2015Assignees: Nihon Dempa Kogyo Co. Ltd., Tanaka Kikinzoko Kogyo K.K.Inventors: Toshinori Ogashiwa, Masaaki Kurita, Takashi Terui, Takeyuki Sagae, Katsunori Akane, Kenzo Okamoto, Kenichi Ueki, Shohei Takeda
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Publication number: 20120248943Abstract: An electrode material capable of making more satisfactory the dispersion at the time of production and the aging property of a resonator than Au and capable of reducing the price as compared to Au. An resonator electrode material including a ternary alloy composed of Au and two metals M1 and M2, and being used as an excitation electrode to excite oscillation in a piezoelectric element, wherein the two metals M1 and M2 are, respectively, (a) metal M1: a metal exhibiting a tendency to decrease the temporal frequency property (?f1/f1) from the reference value f1, and (b) metal M2: a metal exhibiting a tendency to increase the temporal frequency property (?f1/f1) from the reference value f1. The metal M1 is preferably at least any one of Ag, Al and Ni, and the metal M2 is preferably at least any one of Pd, Ru, Pt, Ir, Rh and Cu.Type: ApplicationFiled: April 28, 2010Publication date: October 4, 2012Inventors: Toshinori Ogashiwa, Masaaki Kurita, Takashi Terui, Takayuki Sagae, Katsunori Akane, Kenzo Okamoto, Kenichi Ueki, Shohei Takeda
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Patent number: 7969071Abstract: The crystal unit for surface mounting includes a container body having a recess, a pair of holding terminals formed on an inner bottom surface of the recess and a crystal blank provided with excitation electrodes on both principal surfaces thereof, having a first end and a second end with lead-out electrodes extending from the excitation electrodes toward both sides of the first end. Both sides of the first end are fixed to the holding terminals using a conductive adhesive. Pillow members protruding from the inner bottom surface are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the second end. A bank having a height lower than a height of the pillow members is provided on the inner bottom surface of the recess at an intermediate position between the pair of pillow members.Type: GrantFiled: December 4, 2008Date of Patent: June 28, 2011Assignee: Nithon Dempa Kogyo Co., Ltd.Inventors: Katsunori Akane, Koji Kubota
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Patent number: 7915791Abstract: The quartz crystal device includes a container body having: a recess; a pair of holding terminals formed on an inner bottom surface of the recess; and a crystal blank, both principal surfaces of which are provided with excitation electrodes with lead-out electrodes extending from the pair of excitation electrodes toward both sides of one end of the crystal blank. Both sides of one end of the crystal blank are fixed to the holding terminals using a conductive adhesive. Pillow members are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the other end of the crystal blank, and the two pillow members are independent of each other. Alternatively, each holding terminal includes a first region formed near the facing holding terminal and a second region having a greater thickness than the first region formed far from the facing holding terminal.Type: GrantFiled: October 15, 2008Date of Patent: March 29, 2011Assignee: Nihon Dempa Kogyo Co., Ltd.Inventors: Katsunori Akane, Masakazu Harada
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Patent number: 7759844Abstract: A surface-mount type crystal unit includes a package body which is made of a laminated ceramic and has a bottom wall layer and a frame wall formed on the bottom wall layer, the frame wall layer having an opening. In the package body, a concavity is constructed of the opening. The crystal unit further includes a pair of crystal holding terminals formed on one end part of the inner bottom surface of a concavity which is a top face of the bottom wall layer; a crystal blank held in the concavity by fixing the both sides of the one end part of the crystal blank to the pair of crystal holding terminals; a thermistor; and a cover which closes the concavity. The thermistor is arranged in a hollow part arranged in the top face of the bottom wall layer in the concavity.Type: GrantFiled: February 21, 2008Date of Patent: July 20, 2010Assignee: Nihon Dempa Kogyo Co., Ltd.Inventors: Itaru Miyahara, Katsunori Akane
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Publication number: 20090140613Abstract: The crystal unit for surface mounting includes a container body having a recess, a pair of holding terminals formed on an inner bottom surface of the recess and a crystal blank provided with excitation electrodes on both principal surfaces thereof, having a first end and a second end with lead-out electrodes extending from the excitation electrodes toward both sides of the first end. Both sides of the first end are fixed to the holding terminals using a conductive adhesive. Pillow members protruding from the inner bottom surface are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the second end. A bank having a height lower than a height of the pillow members is provided on the inner bottom surface of the recess at an intermediate position between the pair of pillow members.Type: ApplicationFiled: December 4, 2008Publication date: June 4, 2009Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Katsunori AKANE, Koji KUBOTA
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Publication number: 20090102322Abstract: The quartz crystal device includes a container body having: a recess; a pair of holding terminals formed on an inner bottom surface of the recess; and a crystal blank, both principal surfaces of which are provided with excitation electrodes with lead-out electrodes extending from the pair of excitation electrodes toward both sides of one end of the crystal blank. Both sides of one end of the crystal blank are fixed to the holding terminals using a conductive adhesive. Pillow members are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the other end of the crystal blank, and the two pillow members are independent of each other. Alternatively, each holding terminal includes a first region formed near the facing holding terminal and a second region having a greater thickness than the first region formed far from the facing holding terminal.Type: ApplicationFiled: October 15, 2008Publication date: April 23, 2009Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Katsunori AKANE, Masakazu HARADA
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Publication number: 20080197755Abstract: A surface-mount type crystal unit includes a package body which is made of a laminated ceramic and has a bottom wall layer and a frame wall formed on the bottom wall layer, the frame wall layer having an opening. In the package body, a concavity is constructed of the opening. The crystal unit further includes a pair of crystal holding terminals formed on one end part of the inner bottom surface of a concavity which is a top face of the bottom wall layer; a crystal blank held in the concavity by fixing the both sides of the one end part of the crystal blank to the pair of crystal holding terminals; a thermistor; and a cover which closes the concavity. The thermistor is arranged in a hollow part arranged in the top face of the bottom wall layer in the concavity.Type: ApplicationFiled: February 21, 2008Publication date: August 21, 2008Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Itaru Miyahara, Katsunori Akane
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Patent number: 6972511Abstract: A quartz-crystal unit comprises a container body having a recess, a quartz-crystal blank having a pair of excitation electrodes respectively disposed on one and the other principal surfaces, and a pair of extending electrodes respectively extended from the pair of excitation electrodes, and a cover for sealing an opening plane of the recess. The extending electrodes are led to both sides of one end of the crystal blank, and the one end is secured by a conductive adhesive to hold the crystal blank in the recess in parallel to the cover. The crystal unit satisfies 0<d/L<0.64, where L is the length from the one end to the other end opposing the one end in the crystal blank, and d is a gap between mutually opposing surfaces of the crystal blank and the cover.Type: GrantFiled: November 21, 2002Date of Patent: December 6, 2005Assignee: Nihon Dempa Kogyo Co., Ltd.Inventors: Katsunori Akane, Kiyoharu Matsuo
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Publication number: 20030111935Abstract: A quartz-crystal unit comprises a container body having a recess, a quartz-crystal blank having a pair of excitation electrodes respectively disposed on one and the other principal surfaces, and a pair of extending electrodes respectively extended from the pair of excitation electrodes, and a cover for sealing an opening plane of the recess. The extending electrodes are led to both sides of one end of the crystal blank, and the one end is secured by a conductive adhesive to hold the crystal blank in the recess in parallel to the cover. The crystal unit satisfies 0<d/L<0.64, where L is the length from the one end to the other end opposing the one end in the crystal blank, and d is a gap between mutually opposing surfaces of the crystal blank and the cover.Type: ApplicationFiled: November 21, 2002Publication date: June 19, 2003Inventors: Katsunori Akane, Kiyoharu Matsuo