Patents by Inventor Yoshinobu Sakamoto
Yoshinobu Sakamoto 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: 20240085764Abstract: An electronic apparatus includes a plurality of contacts electrically connectable to an accessory and arranged in a first direction orthogonal to a direction in which the accessory is attached. The contacts include an attachment detection contact to detect an attachment of the accessory to the electronic apparatus, and a communication request contact for a communication request from the accessory to the electronic apparatus. The attachment detection and communication request contacts are disposed between a contact closest one end and a contact closest to another end in the first direction. The attachment detection contact is disposed between the communication request contact and the contact closest to the one end. In the first direction, a distance between the attachment detection contact and the communication request contact is shorter than that between the communication request contact and the contact closest to the other end.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Inventors: Hiromichi Sakamoto, Kei Tohyama, Takayuki Shu, Hiromi Hayasaki, Kouji Ikeda, Yuhei Hattori, Kenji Ishii, Yoshinobu Okano
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Patent number: 9748922Abstract: A tuning-fork type crystal resonator plate includes a base portion and a pair of leg portions protruding from the base portion in one direction. A groove and a bank portion are formed on at least one of main surfaces of each of the leg portions. The bank portion is formed accompanied by the formation of the groove, and a width of the bank portion differs along a width direction. The bank portion is constituted by a thick portion having a large width and a thin portion having a small width.Type: GrantFiled: March 12, 2014Date of Patent: August 29, 2017Assignee: DAISHINKU CORPORATIONInventors: Satoru Ishino, Yoshinobu Sakamoto
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Patent number: 9548719Abstract: A tuning fork type piezoelectric vibration piece 2 includes a base portion 25 in which a piezoelectric vibration substrate has a connection area with an external element, and a pair of leg portions 21, 22 projecting from a first end face of the base portion. The pair of leg portions has vibrating portions 212, 222 equipped with drive electrodes, wide weight portions 211, 221 formed at tip ends of the vibrating portions, and connecting portions 213, 223 between the vibrating portions and the weight portions. The connecting portions have widening sections whose width increases exponentially from the vibrating portions to the weight portions. The length of the widening sections is greater than their width. The weight portions have constant-width parts whose width is fixed from their connecting positions with the connecting portions. The weight portions are free of drive electrodes.Type: GrantFiled: May 27, 2014Date of Patent: January 17, 2017Assignee: DAISHINKU CORPORATIONInventors: Yoshinobu Sakamoto, Satoru Ishino, Tomo Fujii
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Publication number: 20160308510Abstract: A tuning-fork type crystal resonator plate includes a base portion and a pair of leg portions protruding from the base portion in one direction. A groove and a bank portion are formed on at least one of main surfaces of each of the leg portions. The bank portion is formed accompanied by the formation of the groove, and a width of the bank portion differs along a width direction. The bank portion is constituted by a thick portion having a large width and a thin portion having a small width.Type: ApplicationFiled: March 12, 2014Publication date: October 20, 2016Inventors: Satoru ISHINO, Yoshinobu SAKAMOTO
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Patent number: 9344057Abstract: For a tuning-fork type crystal resonator plate, a crystal plate having a crystal orientation is used. The tuning-fork type crystal resonator plate includes: a base portion; and a pair of first and second leg portions protruding from the base portion in one direction. In the first leg portion and the second leg portion, grooves are formed so that each of the grooves is biased relative to a center of the corresponding first or second leg portion in a width direction. A lowermost point of the groove is positioned in a middle of the groove in the width direction (width direction of the first leg portion and the second leg portion) in a state viewed from an end surface of the first and second leg portions in the width direction.Type: GrantFiled: December 11, 2013Date of Patent: May 17, 2016Assignee: DAISHINKU CORPORATIONInventors: Yoshinobu Sakamoto, Satoru Ishino, Yoshinari Morimoto, Taiki Goto
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Publication number: 20160006413Abstract: A tuning fork type piezoelectric vibration piece 2 includes a base portion 25 in which a piezoelectric vibration substrate has a connection area with an external element, and a pair of leg portions 21, 22 projecting from a first end face of the base portion. The pair of leg portions has vibrating portions 212, 222 equipped with drive electrodes, wide weight portions 211, 221 formed at tip ends of the vibrating portions, and connecting portions 213, 223 between the vibrating portions and the weight portions. The connecting portions have widening sections whose width increases exponentially from the vibrating portions to the weight portions. The length of the widening sections is greater than their width. The weight portions have constant-width parts whose width is fixed from their connecting positions with the connecting portions. The weight portions are free of drive electrodes.Type: ApplicationFiled: May 27, 2014Publication date: January 7, 2016Applicant: DAISHINKU CORPORATIONInventors: Yoshinobu SAKAMOTO, Satoru ISHINO, Tomo FUJII
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Patent number: 9130148Abstract: A piezoelectric resonator plate includes at least a pair of excitation electrodes and at least a pair of extraction electrodes. The pair of extraction electrodes are respectively extracted from the pair of excitation electrodes to electrically and mechanically bond the pair of excitation electrodes to an external electrode. The pair of extraction electrodes each include a distal end portion. The distal end portion includes a connecting electrode extracted to a vicinity of one end portion on one principal surface of the piezoelectric resonator plate. The connecting electrodes each include a top surface where a first metal film to be bonded to the external electrode is formed. The first metal film includes a top surface with two or more protruding portions. The first metal film has a larger surface roughness and a smaller area compared with the respective connecting electrodes. The protruding portions are formed with cross-sections in curvature shapes.Type: GrantFiled: February 24, 2012Date of Patent: September 8, 2015Assignee: DAISHINKU CORPORATIONInventors: Yoshinari Morimoto, Yoshinobu Sakamoto
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Publication number: 20150171824Abstract: For a tuning-fork type crystal resonator plate, a crystal plate having a crystal orientation is used. The tuning-fork type crystal resonator plate includes: a base portion; and a pair of first and second leg portions protruding from the base portion in one direction. In the first leg portion and the second leg portion, grooves are formed so that each of the grooves is biased relative to a center of the corresponding first or second leg portion in a width direction. A lowermost point of the groove is positioned in a middle of the groove in the width direction (width direction of the first leg portion and the second leg portion) in a state viewed from an end surface of the first and second leg portions in the width direction.Type: ApplicationFiled: December 11, 2013Publication date: June 18, 2015Inventors: Yoshinobu Sakamoto, Satoru Ishino, Yoshinari Morimoto, Taiki Goto
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Patent number: 8928208Abstract: A tuning fork-type piezoelectric resonator plate has a resonator blank comprising a pair of vibrating leg portions and a base portion from which the leg portions protrude. The pair of leg portions are arranged in parallel protrudingly from one end face of the base portion, and a pronged portion is formed between the pair of leg portions in an intermediate position in a width direction of the one end face of the base portion. The base portion has a pair of through holes along the one end face of the base portion, and on another end face side opposite to the one end face of the base portion, a joining region that joins to an external portion. The pair of through holes are specially positioned and have special wall surface configurations.Type: GrantFiled: February 2, 2012Date of Patent: January 6, 2015Assignee: Daishinku CorporationInventor: Yoshinobu Sakamoto
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Publication number: 20130221808Abstract: A piezoelectric resonator plate includes at least a pair of excitation electrodes and at least a pair of extraction electrodes. The pair of extraction electrodes are respectively extracted from the pair of excitation electrodes to electrically and mechanically bond the pair of excitation electrodes to an external electrode. The pair of extraction electrodes each include a distal end portion. The distal end portion includes a connecting electrode extracted to a vicinity of one end portion on one principal surface of the piezoelectric resonator plate. The connecting electrodes each include a top surface where a first metal film to be bonded to the external electrode is formed. The first metal film includes a top surface with two or more protruding portions. The first metal film has a larger surface roughness and a smaller area compared with the respective connecting electrodes. The protruding portions are formed with cross-sections in curvature shapes.Type: ApplicationFiled: February 24, 2012Publication date: August 29, 2013Inventors: Yoshinari Morimoto, Yoshinobu Sakamoto
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Patent number: 8400048Abstract: A tuning-fork type piezoelectric resonator plate includes: at least a plurality of leg portions serving as vibrating portions; a bonding portion bonded to the outside, and a base portion from which the leg portions and the bonding portion protrude. The plurality of leg portions protrude from a first end face of the base portion and are provided side-by-side on the first end face. The bonding portion protrude from a second end face located opposite the first end face of the base portion at a position located opposite a center position of the plurality of leg portions in a width direction of the first end face of the base portion. And, at least a base end portion of the bonding portion is used as a bond region that is bonded to the outside.Type: GrantFiled: September 18, 2009Date of Patent: March 19, 2013Assignee: Daishinku CorporationInventors: Takashi Shirai, Yoshinobu Sakamoto, Syunsuke Satoh, Tomo Fujii, Masato Itoh, Yoshinari Morimoto
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Publication number: 20130020915Abstract: A tuning fork-type piezoelectric resonator plate has a resonator blank comprising a pair of vibrating leg portions and a base portion from which the leg portions protrude. The pair of leg portions are arranged in parallel protrudingly from one end face of the base portion, and a pronged portion is formed between the pair of leg portions in an intermediate position in a width direction of the one end face of the base portion. The base portion has a pair of through holes along the one end face of the base portion, and on another end face side opposite to the one end face of the base portion, a joining region that joins to an external portion. The pair of through holes are specially positioned and have special wall surface configurations.Type: ApplicationFiled: February 2, 2012Publication date: January 24, 2013Applicant: DAISHINKU CORPORATIONInventor: Yoshinobu Sakamoto
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Publication number: 20110043079Abstract: A tuning-fork type piezoelectric resonator plate includes: at least a plurality of leg portions serving as vibrating portions; a bonding portion bonded to the outside, and a base portion from which the leg portions and the bonding portion protrude. The plurality of leg portions protrude from a first end face of the base portion and are provided side-by-side on the first end face. The bonding portion protrude from a second end face located opposite the first end face of the base portion at a position located opposite a center position of the plurality of leg portions in a width direction of the first end face of the base portion. And, at least a base end portion of the bonding portion is used as a bond region that is bonded to the outside.Type: ApplicationFiled: September 18, 2009Publication date: February 24, 2011Applicant: DAISHINKU CORPORATIONInventors: Takashi Shirai, Yoshinobu Sakamoto, Syunsuke Satoh, Tomo Fujii, Masato Itoh, Yoshinari Morimoto
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Patent number: D678834Type: GrantFiled: June 7, 2011Date of Patent: March 26, 2013Assignee: Daishinku CorporationInventor: Yoshinobu Sakamoto
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Patent number: D678835Type: GrantFiled: June 7, 2011Date of Patent: March 26, 2013Assignee: Daishinku CorporationInventor: Yoshinobu Sakamoto
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Patent number: D1018777Type: GrantFiled: June 23, 2021Date of Patent: March 19, 2024Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Daisuke Urata, Tomohiro Adachi, Yoshinobu Toda, Hiroki Sakamoto, Keisho Morimoto