Patents by Inventor Yosuke ITASAKA
Yosuke ITASAKA 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: 10978995Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; an oscillation circuit electrically coupled to the first terminal and the second terminal, and oscillating the vibrator; a third terminal to which an external input signal is input; a switch circuit provided between a first wiring which couples the first terminal and the oscillation circuit with each other and the third terminal, and having a P-type transistor; and a control circuit outputting a regulated voltage, in which a power supply voltage is regulated, as a substrate voltage of the P-type transistor.Type: GrantFiled: March 13, 2020Date of Patent: April 13, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Yosuke Itasaka, Naoki Ii
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Patent number: 10965248Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; a first coupling wiring electrically coupled to the first terminal; a second coupling wiring electrically coupled to the second terminal; an oscillation circuit having a drive circuit for driving the vibrator via the first coupling wiring and the second coupling wiring, and oscillating the vibrator; and a first capacitor having a metal-insulator-metal (MIM) structure of which one electrode is electrically coupled to the first coupling wiring. The first coupling wiring and the first capacitor having the MIM structure overlap each other in plan view in a direction orthogonal to a substrate on which a circuit element is formed.Type: GrantFiled: March 19, 2020Date of Patent: March 30, 2021Assignee: Seiko Epson CorporationInventor: Yosuke Itasaka
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Publication number: 20210006251Abstract: An integrated circuit device includes a temperature sensor, a heat generation source circuit serving as a heat generation source, a pad for external coupling, and a capacitor having the MIM structure in which one electrode is electrically coupled to the pad for external coupling. In a plan view orthogonal to the substrate on which a circuit element is formed, the capacitor having the MIM structure and the temperature sensor overlap.Type: ApplicationFiled: July 1, 2020Publication date: January 7, 2021Inventors: Yosuke ITASAKA, Naoki II, Takashi NOMIYA
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Patent number: 10835779Abstract: An action information processing device includes: a biological sensor which acquires biological information; a motion sensor which acquires action information including a first action indicating a predetermined action and a second action executed before the start of the first action; an information acquisition unit which acquires the biological information and the action information; a mental information processing unit which estimates mental state information from the biological information; an action decision unit which calculates an action of a subject from the action information and decides whether the first action is success or failure, based on a predetermined decision condition; and an action advice output information unit which outputs action advice information about the second action, based on the mental state information about the second action and a result of the decision about the first action by the action decision unit.Type: GrantFiled: November 1, 2017Date of Patent: November 17, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Yosuke Itasaka, Osamu Takahashi, Michihiro Nagaishi, Hideaki Yamada, Yuji Kamichika
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Publication number: 20200313619Abstract: An integrated circuit device includes a first pad and a second pad electrically coupled to one end and the other end of a resonator, an oscillation circuit that is electrically coupled to the first pad and the second pad and generates an oscillation signal by causing the resonator to oscillate, and an output circuit that outputs a clock signal based on the oscillation signal. The oscillation circuit is disposed along a first side of the integrated circuit device among the first side, a second side that intersects the first side, a third side that is an opposite side of the first side, and a fourth side that is an opposite side of the second side. The first pad and the second pad are disposed in the oscillation circuit along the first side in a plan view, and the output circuit is disposed along the second side.Type: ApplicationFiled: March 31, 2020Publication date: October 1, 2020Inventors: Mitsuaki SAWADA, Naoki II, Yosuke ITASAKA
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Publication number: 20200304066Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; a first coupling wiring electrically coupled to the first terminal; a second coupling wiring electrically coupled to the second terminal; an oscillation circuit having a drive circuit for driving the vibrator via the first coupling wiring and the second coupling wiring, and oscillating the vibrator; and a first capacitor having a metal-insulator-metal (MIM) structure of which one electrode is electrically coupled to the first coupling wiring. The first coupling wiring and the first capacitor having the MIM structure overlap each other in plan view in a direction orthogonal to a substrate on which a circuit element is formed.Type: ApplicationFiled: March 19, 2020Publication date: September 24, 2020Inventor: Yosuke ITASAKA
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Publication number: 20200304067Abstract: Provided is a circuit device including: an oscillation circuit oscillating a vibrator, in which the oscillation circuit includes a variable capacitance circuit having a first variable capacitance element and a second variable capacitance element constituted by a first transistor and a second transistor, and a reference voltage supply circuit. The first reference voltage is supplied to a first gate of the first transistor and a capacitance control voltage is supplied to a first impurity region of the first transistor, the second reference voltage is supplied to a second gate of the second transistor and the capacitance control voltage is supplied to a second impurity region of the second transistor, and the capacitance control voltage is supplied to a first common impurity region of the first transistor and the second transistor.Type: ApplicationFiled: March 19, 2020Publication date: September 24, 2020Inventor: Yosuke ITASAKA
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Publication number: 20200295707Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; an oscillation circuit electrically coupled to the first terminal and the second terminal, and oscillating the vibrator; a third terminal to which an external input signal is input; a switch circuit provided between a first wiring which couples the first terminal and the oscillation circuit with each other and the third terminal, and having a P-type transistor; and a control circuit outputting a regulated voltage, in which a power supply voltage is regulated, as a substrate voltage of the P-type transistor.Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Applicant: SEIKO EPSON CORPORATIONInventors: Yosuke ITASAKA, Naoki II
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Patent number: 10459680Abstract: An electronic device includes: an acquisition unit which acquires information of an object displayed on a display device attached to a user or an exercise tool and supplementary information about the object; and a display unit which displays the object and a function of the object on a display unit, using the information of the object and the supplementary information that are acquired.Type: GrantFiled: March 3, 2017Date of Patent: October 29, 2019Assignee: SEIKO EPSON CORPORATIONInventor: Yosuke Itasaka
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Patent number: 10284206Abstract: An oscillator includes: an oscillation stage circuit that is connected between a first electrode and a second electrode of a resonator and performs an oscillation operation; a variable capacitance element that is connected to the first or second electrode of the resonator and adjusts an oscillation frequency; a bandgap reference circuit that generates a reference voltage having magnitude, which changes depending on the temperature, by using a resistor inserted in a current path through which a current having magnitude, which changes depending on the temperature flows; and a bias current generating circuit that generates a bias current of the oscillation stage circuit based on the reference voltage, and that, thereby, reduces a change in the oscillation frequency due to the temperature dependence of the impedance of the resonator or the temperature dependence of the sensitivity of the variable capacitance element.Type: GrantFiled: December 14, 2016Date of Patent: May 7, 2019Assignee: SEIKO EPSON CORPORATIONInventor: Yosuke Itasaka
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Publication number: 20180133547Abstract: An action information processing device includes: a biological sensor which acquires biological information; a motion sensor which acquires action information including a first action indicating a predetermined action and a second action executed before the start of the first action; an information acquisition unit which acquires the biological information and the action information; a mental information processing unit which estimates mental state information from the biological information; an action decision unit which calculates an action of a subject from the action information and decides whether the first action is success or failure, based on a predetermined decision condition; and an action advice output information unit which outputs action advice information about the second action, based on the mental state information about the second action and a result of the decision about the first action by the action decision unit.Type: ApplicationFiled: November 1, 2017Publication date: May 17, 2018Applicant: SEIKO EPSON CORPORATIONInventors: Yosuke ITASAKA, Osamu TAKAHASHI, Michihiro NAGAISHI, Hideaki YAMADA, Yuji KAMICHIKA
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Publication number: 20170277502Abstract: An electronic device includes: an acquisition unit which acquires information of an object displayed on a display device attached to a user or an exercise tool and supplementary information about the object; and a display unit which displays the object and a function of the object on a display unit, using the information of the object and the supplementary information that are acquired.Type: ApplicationFiled: March 3, 2017Publication date: September 28, 2017Applicant: SEIKO EPSON CORPORATIONInventor: Yosuke ITASAKA
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Publication number: 20170179961Abstract: An oscillator includes: an oscillation stage circuit that is connected between a first electrode and a second electrode of a resonator and performs an oscillation operation; a variable capacitance element that is connected to the first or second electrode of the resonator and adjusts an oscillation frequency; a bandgap reference circuit that generates a reference voltage having magnitude, which changes depending on the temperature, by using a resistor inserted in a current path through which a current having magnitude, which changes depending on the temperature flows; and a bias current generating circuit that generates a bias current of the oscillation stage circuit based on the reference voltage, and that, thereby, reduces a change in the oscillation frequency due to the temperature dependence of the impedance of the resonator or the temperature dependence of the sensitivity of the variable capacitance element.Type: ApplicationFiled: December 14, 2016Publication date: June 22, 2017Inventor: Yosuke Itasaka
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Patent number: 9660581Abstract: An oscillation circuit includes a circuit for oscillation, a first frequency adjustment circuit for adjusting a frequency, and a first terminal. The oscillation circuit has a first mode in which the circuit for oscillation and the first frequency adjustment circuit are electrically connected to each other and the first frequency adjustment circuit and the first terminal are not electrically connected to each other, and a second mode in which the circuit for oscillation and the first frequency adjustment circuit operate and a terminal on a side where a signal of the first frequency adjustment circuit is output and the first terminal are electrically connected to each other.Type: GrantFiled: February 2, 2016Date of Patent: May 23, 2017Assignee: SEIKO EPSON CORPORATIONInventors: Yosuke Itasaka, Atsushi Kiyohara
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Patent number: 9628022Abstract: An oscillation circuit includes a terminal XO, a terminal XI, an oscillation unit, and a voltage generation circuit that generates a first voltage and a second voltage. The oscillation unit includes a variable capacitive element connected to the terminal XO or the terminal XI. In a first mode, a signal having a first amplitude is applied between the terminal XO and the terminal XI, and a first voltage is applied to the other end of the variable capacitive element. In a second mode, a signal having a second amplitude larger than an amplitude of the signal having the first amplitude is applied between the terminal XO and the terminal XI, a second voltage is applied to the other end of the variable capacitive element, and a voltage applied to the both ends of the variable capacitive element is lower than the maximum rated voltage of the variable capacitive element.Type: GrantFiled: October 29, 2014Date of Patent: April 18, 2017Assignee: Seiko Epson CorporationInventors: Yosuke Itasaka, Masayuki Ishikawa, Takehiro Yamamoto, Akihiro Fukuzawa
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Patent number: 9621107Abstract: An oscillation circuit includes a circuit for oscillation and a signal adjustment circuit connected to the circuit for oscillation. An input voltage based on a direct-current voltage, a voltage value of which can be changed, is input to the circuit for oscillation and the signal adjustment circuit. The circuit for oscillation causes a vibration piece to oscillate and outputs a first oscillation signal. A frequency of the first oscillation signal is adjusted according to the voltage value output from the signal adjustment circuit.Type: GrantFiled: June 16, 2015Date of Patent: April 11, 2017Assignee: Seiko Epson CorporationInventors: Atsushi Kiyohara, Masayuki Ishikawa, Yosuke Itasaka
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Patent number: 9621106Abstract: An oscillation circuit includes a circuit for oscillation that oscillates a resonator, an output circuit that has a signal, output from the circuit for oscillation, input thereto to thereby output an oscillation signal, a connection terminal to which power is applied, a first wiring that connects from the connection terminal to the output circuit, and a second wiring that is connected to the first wiring through a connection node provided on the first wiring and connects from the connection node to the circuit for oscillation. The circuit for oscillation, the output circuit, the connection terminal, the first wiring, and the second wiring are provided on a semiconductor substrate. The length of a wiring extending from the connection terminal of the first wiring to the connection node is shorter than the length of the second wiring.Type: GrantFiled: February 2, 2016Date of Patent: April 11, 2017Assignee: SEIKO EPSON CORPORATIONInventors: Yosuke Itasaka, Noboru Itomi
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Patent number: 9484857Abstract: A semiconductor circuit device includes: a semiconductor substrate; and a first circuit block including an analog circuit as a component, a second circuit block including a digital circuit as a component, a connection pad, and a connection wire electrically connecting the connection pad with the first circuit block, all of which are arranged on the semiconductor substrate. The connection wire is provided so as not to overlap the second circuit block in a plan view.Type: GrantFiled: November 6, 2014Date of Patent: November 1, 2016Assignee: Seiko Epson CorporationInventors: Yosuke Itasaka, Masayuki Ishikawa, Takehiro Yamamoto
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Patent number: 9461585Abstract: An oscillation circuit includes: an oscillation unit which includes a first terminal and a second terminal connected to a vibrator; a third terminal to which a ground potential is supplied; a fourth terminal which is electrically connected to the second terminal, and to which at least one of an AC voltage for driving the vibrator and a voltage for operating the oscillation unit is applied; and a first switching unit which switches modes of electrical connection between the first terminal and the third terminal.Type: GrantFiled: October 28, 2014Date of Patent: October 4, 2016Assignee: Seiko Epson CorporationInventors: Takehiro Yamamoto, Masayuki Ishikawa, Yosuke Itasaka
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Patent number: 9438167Abstract: An oscillation circuit includes: an oscillation unit which includes a first terminal and a second terminal connected to a resonator, a third terminal, a fourth terminal to which at least one of a power supply potential and a signal for inspecting the resonator is applied, a first switching unit which switches modes of electrical connection between the first terminal and the third terminal, and a second switching unit which switches modes of electrical connection between the second terminal and the fourth terminal.Type: GrantFiled: October 29, 2014Date of Patent: September 6, 2016Assignee: Seiko Epson CorporationInventors: Yosuke Itasaka, Masayuki Ishikawa, Takehiro Yamamoto, Akihiro Fukuzawa