Patents by Inventor Takafumi Sano
Takafumi Sano 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: 20240092222Abstract: A method for distributing balancing power, the method comprising, preferentially assigning, when a demand response is performed using a plurality of electrified vehicle groups including one or more electrified vehicles each of which includes a communication unit and a balancing resource that is able to supply power to an outside, an integral multiple of control power of each of the electrified vehicle groups to required balancing power required for each of the electrified vehicle groups in target balancing power within a limit of balancing power that each of the electrified vehicle groups is able to supply, and assigning remaining balancing power of the target balancing power to required balancing power required for another resource other than the electrified vehicles, after assigning integral multiple of control power of each of the electrified vehicle groups to required balancing power required for each of the electrified vehicle groups in the target balancing power.Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takaaki SANO, Takafumi MATSUMURA
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Patent number: 10781026Abstract: To provide a container and a package configured to prevent a deformation of housed metal. According to one aspect of the present invention, there is provided the container. This container includes a cylindrical container body, a lid, and a flat plate-shaped inner plug. The cylindrical container body with a bottom has a sidewall and a bottom wall. The lid has a flat plate portion and a side portion. The flat plate portion covers an opening of the container body. The side portion covers at least a part of an outer peripheral surface of the container body. The flat plate-shaped inner plug is located inside the lid. The container body includes a thread ridge on the outer peripheral surface. The side portion of the lid has a screw groove with two or more threads on its inner peripheral surface. The lid is configured to be screwed with the container body by screwing the screw groove with the thread ridge. A plurality of lock portions are disposed on an outer periphery of the lid.Type: GrantFiled: July 5, 2017Date of Patent: September 22, 2020Assignee: SENJU METAL INDUSTRY CO., LTD.Inventors: Isamu Sato, Takafumi Sano, Naoyuki Motozawa, Kazuya Higashi, Tomofumi Kaneko
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Publication number: 20190300262Abstract: To provide a container and a package configured to prevent a deformation of housed metal. According to one aspect of the present invention, there is provided the container. This container includes a cylindrical container body, a lid, and a flat plate-shaped inner plug. The cylindrical container body with a bottom has a sidewall and a bottom wall. The lid has a flat plate portion and a side portion. The flat plate portion covers an opening of the container body. The side portion covers at least a part of an outer peripheral surface of the container body. The flat plate-shaped inner plug is located inside the lid. The container body includes a thread ridge on the outer peripheral surface. The side portion of the lid has a screw groove with two or more threads on its inner peripheral surface. The lid is configured to be screwed with the container body by screwing the screw groove with the thread ridge. A plurality of lock portions are disposed on an outer periphery of the lid.Type: ApplicationFiled: July 5, 2017Publication date: October 3, 2019Applicant: SENJU METAL INDUSTRY CO., LTD.Inventors: Isamu SATO, Takafumi SANO, Naoyuki MOTOZAWA, Kazuya HIGASHI, Tomofumi KANEKO
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Patent number: 10326903Abstract: Each of a plurality of image reader chips included in an image reader device includes: a readout circuit that reads out a pixel signal output from a pixel portion; a transfer interconnect; an output circuit that outputs the pixel signal; a capacitor that is selectively connected between the transfer interconnect and the output circuit; and a constant voltage circuit. The constant voltage circuit is selectively connected to a first terminal of the capacitor via the output circuit.Type: GrantFiled: September 25, 2017Date of Patent: June 18, 2019Assignee: SEIKO EPSON CORPORATIONInventor: Takafumi Sano
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Publication number: 20180278791Abstract: An image reading chip includes: a first pixel that includes a first photodetector that receives light of a reduced image of a portion of an image and performs photoelectric conversion, and generates a first pixel signal by amplifying a signal generated by the photoelectric conversion; a second pixel that includes a second photodetector that receives light of a reduced image of a portion of the image and performs photoelectric conversion, and generates a second pixel signal by amplifying a signal generated by the photoelectric conversion; and a pseudo pixel that is not involved in reading the image. The first pixel, the second pixel, and the pseudo pixel are arranged along a first side, and the distance between the pseudo pixel and the second side is shorter than the distance between the first pixel and the second side and the distance between the second pixel and the second side.Type: ApplicationFiled: March 12, 2018Publication date: September 27, 2018Applicant: SEIKO EPSON CORPORATIONInventor: Takafumi SANO
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Patent number: 10075608Abstract: An image reading apparatus which reads an image includes a first pixel that includes a first light receiving element which performs photoelectric conversion; a second pixel that includes a second light receiving element which performs photoelectric conversion; a first reading circuit that includes a first capacitor which is electrically connected to the first pixel and a first amplifier having an input terminal which is electrically connected to the first capacitor; a second reading circuit that includes a second capacitor which is electrically connected to the second pixel, a second amplifier, and a first switch which switches whether or not to electrically connect the second capacitor to an input terminal of the second amplifier; and a second switch that switches whether or not to electrically connect a first node between the first capacitor and the first amplifier to a second node between the second capacitor and the second amplifier.Type: GrantFiled: May 23, 2017Date of Patent: September 11, 2018Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Publication number: 20180091692Abstract: Each of a plurality of image reader chips included in an image reader device includes: a readout circuit that reads out a pixel signal output from a pixel portion; a transfer interconnect; an output circuit that outputs the pixel signal; a capacitor that is selectively connected between the transfer interconnect and the output circuit; and a constant voltage circuit. The constant voltage circuit is selectively connected to a first terminal of the capacitor via the output circuit.Type: ApplicationFiled: September 25, 2017Publication date: March 29, 2018Applicant: SEIKO EPSON CORPORATIONInventor: Takafumi SANO
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Patent number: 9912828Abstract: An image reading apparatus includes a light receiving element configured to receive light from an image to perform photoelectric conversion, an amplification unit configured to amplify a signal generated by the photoelectric conversion, a switch element electrically connected to first and second ends of the amplification unit to be in parallel with the amplification unit, and a capacitor. The capacitor is electrically connected to the first and second ends of the amplification unit to be in parallel with to the amplification unit, and includes a first wire electrically connecting a first end of the light receiving element, the first end of the amplification unit, and a first end of the switch element, and a second wire electrically connecting the second end of the amplification unit and a second end of the switch element. The capacitor includes capacitance that is interconnect capacitance between the first and second wires.Type: GrantFiled: November 28, 2016Date of Patent: March 6, 2018Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Patent number: 9912887Abstract: An image reading apparatus for reading an image includes a light receiving element that receives light from the image so as to perform photoelectric conversion, an amplifier which is electrically connected to the light receiving element, and amplifies a signal generated by photoelectric conversion, a switch element which is electrically connected to both ends of the amplifier so as to be parallel to the amplifier, a first capacitance which are electrically connected to both ends of the amplifier so as to be parallel to the amplifier, and a second capacitance which has one end which is electrically connected to one end of the light receiving element and one end of the amplifier. A second signal of which potential is changed after potential of a first signal input to a control terminal of the switch element is changed is applied to another end of the second capacitance.Type: GrantFiled: December 1, 2016Date of Patent: March 6, 2018Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Publication number: 20170374226Abstract: An image reading apparatus which reads an image includes a first pixel that includes a first light receiving element which performs photoelectric conversion; a second pixel that includes a second light receiving element which performs photoelectric conversion; a first reading circuit that includes a first capacitor which is electrically connected to the first pixel and a first amplifier having an input terminal which is electrically connected to the first capacitor; a second reading circuit that includes a second capacitor which is electrically connected to the second pixel, a second amplifier, and a first switch which switches whether or not to electrically connect the second capacitor to an input terminal of the second amplifier; and a second switch that switches whether or not to electrically connect a first node between the first capacitor and the first amplifier to a second node between the second capacitor and the second amplifier.Type: ApplicationFiled: May 23, 2017Publication date: December 28, 2017Inventor: Takafumi SANO
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Patent number: 9751303Abstract: There is provided a driving circuit having a modulator which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; a first power source; and a temperature detection portion which detects temperature.Type: GrantFiled: November 28, 2016Date of Patent: September 5, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Patent number: 9713922Abstract: There is provided a driving circuit for a capacitive load including: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a boosting circuit which boosts and supplies a voltage to the gate driver; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and in which a wiring impedance between the ground terminal and the gate driver is smaller than a wiring impedance between the ground terminal and the boosting circuit.Type: GrantFiled: December 6, 2016Date of Patent: July 25, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Publication number: 20170171419Abstract: An image reading apparatus includes a light receiving element configured to receive light from an image to perform photoelectric conversion, an amplification unit configured to amplify a signal generated by the photoelectric conversion, a switch element electrically connected to first and second ends of the amplification unit to be in parallel with the amplification unit, and a capacitor. The capacitor is electrically connected to the first and second ends of the amplification unit to be in parallel with to the amplification unit, and includes a first wire electrically connecting a first end of the light receiving element, the first end of the amplification unit, and a first end of the switch element, and a second wire electrically connecting the second end of the amplification unit and a second end of the switch element. The capacitor includes capacitance that is interconnect capacitance between the first and second wires.Type: ApplicationFiled: November 28, 2016Publication date: June 15, 2017Inventor: Takafumi SANO
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Publication number: 20170171478Abstract: An image reading apparatus for reading an image includes a light receiving element that receives light from the image so as to perform photoelectric conversion, an amplifier which is electrically connected to the light receiving element, and amplifies a signal generated by photoelectric conversion, a switch element which is electrically connected to both ends of the amplifier so as to be parallel to the amplifier, a first capacitance which are electrically connected to both ends of the amplifier so as to be parallel to the amplifier, and a second capacitance which has one end which is electrically connected to one end of the light receiving element and one end of the amplifier. A second signal of which potential is changed after potential of a first signal input to a control terminal of the switch element is changed is applied to another end of the second capacitance.Type: ApplicationFiled: December 1, 2016Publication date: June 15, 2017Inventor: Takafumi SANO
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Publication number: 20170080708Abstract: There is provided a driving circuit for a capacitive load including: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a boosting circuit which boosts and supplies a voltage to the gate driver; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and in which a wiring impedance between the ground terminal and the gate driver is smaller than a wiring impedance between the ground terminal and the boosting circuit.Type: ApplicationFiled: December 6, 2016Publication date: March 23, 2017Inventor: Takafumi SANO
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Publication number: 20170072688Abstract: There is provided a driving circuit having a modulator which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; a first power source; and a temperature detection portion which detects temperature.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventor: Takafumi SANO
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Patent number: 9579886Abstract: A liquid discharging apparatus includes a modulation portion that generates a modulation signal obtained by pulse-modulating a source signal; an amplifier that includes a gate driver generating an amplification control signal based on the modulation signal, a bootstrap circuit supplying power to the gate driver, a power source circuit supplying power to the gate driver and the bootstrap circuit, and a transistor generating the amplification modulation signal that is obtained by amplifying the modulation signal based on amplification control signal; a low-pass filter that generates the driving signal by demodulating the amplification modulation signal; a piezoelectric element that is displaced by applying the driving signal; and a control portion that controls an operation of the amplifier. The control portion performs a second process of starting an amplification operation of the amplifier after a first process of performing supply of power to the bootstrap circuit.Type: GrantFiled: January 21, 2016Date of Patent: February 28, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Patent number: 9573366Abstract: There is provided a liquid discharging apparatus including: an original driving signal generation portion which generates an original driving signal based on a source signal; a driving signal generation portion which generates a driving signal based on the original driving signal; a reference voltage generation portion which generates a first reference voltage and a second reference voltage adjusted based on an adjustment signal, and supplies the voltage to the original driving signal generation portion; a piezoelectric element which is displaced as the driving signal is applied; a cavity; and a nozzle, and discharges the liquid inside the cavity as liquid droplets in accordance with the change in the internal volume of the cavity, in which adjustment resolution of the first reference voltage is lower than adjustment resolution of the second reference voltage.Type: GrantFiled: November 2, 2015Date of Patent: February 21, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Patent number: 9555624Abstract: A liquid discharging apparatus includes a modulation portion that generates a modulation signal obtained by pulse-modulating a source signal; a switching element that generates an amplification modulation signal obtained by amplifying the modulation signal; a low-pass filter that generates a driving signal by demodulating the amplification modulation signal; a piezoelectric element that is displaced by applying the driving signal; a selection portion that is configured to include a transistor and selects whether or not the driving signal is applied to the piezoelectric element; and a detection portion that detects lowering of a power source voltage supplied to the selection portion. The detection portion performs control for lowering a voltage of the driving signal if lowering of the power source voltage is detected.Type: GrantFiled: January 19, 2016Date of Patent: January 31, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano
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Patent number: 9555627Abstract: A liquid ejecting apparatus includes a modulation circuit that performs pulse modulation on an original signal to generate a modulated signal; a pair of transistors that generate an amplified modulated signal amplified from the modulated signal; a lowpass filter that smoothes the amplified modulated signal to generate a driving signal; an AD converter that performs AD conversion on a voltage based on the driving signal; a piezoelectric element that is displaced to eject a liquid when the driving signal is applied. The AD converter includes at least K (where K is an integer equal to or greater than 2) capacitors and a controller that causes the K capacitors to sample voltages based on the driving signal at temporally different timings, and subsequently equalizes the voltages and outputs a result of the AD conversion based on the equalized voltage.Type: GrantFiled: April 30, 2015Date of Patent: January 31, 2017Assignee: Seiko Epson CorporationInventor: Takafumi Sano