Patents by Inventor Hiroki Ishihara
Hiroki Ishihara 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: 11360414Abstract: A sheet correcting device includes a plurality of curved surface members including curved surfaces, respectively, to deform a sheet along the curved surfaces, the plurality of curved surface members disposed along a conveyance direction of the sheet, a plurality of pressing members disposed facing the curved surfaces of the plurality of curved surface members, respectively, to press the sheet against the curved surfaces of the plurality of curved surface members, respectively, a sheet tensioner to apply tension to the sheet, and a heater to heat the sheet that is bent by the curved surfaces of the plurality of curved surface members.Type: GrantFiled: November 6, 2018Date of Patent: June 14, 2022Assignee: RICOH COMPANY, LTD.Inventors: Hiroki Ishihara, Genichiroh Kawamichi, Satoshi Aizawa, Kohki Asada
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Patent number: 11355694Abstract: According to one embodiment, a magnetic memory device includes a stacked structure including a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, and containing magnesium (Mg) and oxygen (O). The nonmagnetic layer further contains an additive element selected from fluorine (F), sulfur (S), hydrogen (H) and lithium (Li).Type: GrantFiled: September 13, 2019Date of Patent: June 7, 2022Assignee: KIOXIA CORPORATIONInventors: Tadaomi Daibou, Yasushi Nakasaki, Tadashi Kai, Hiroki Kawai, Takamitsu Ishihara, Junichi Ito
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Patent number: 11309807Abstract: A power conversion device includes: a power converter circuit which converts a direct-current power, output from a decentralized power supply, into an alternating-current power, and outputs the alternating-current power to a power distribution grid; a voltage target value generation unit which removes a high-frequency variation from a root mean square of a voltage detected by a voltage detection unit to generate a voltage target value; a correction unit which corrects the voltage target value when the correction unit detects that the automatic voltage regulator has performed an action; and a command unit which, if the voltage at the point of interconnection detected by the voltage detection unit deviates from a voltage control deadband referenced to the voltage target value, commands the power converter circuit to output a reactive power based on a magnitude of the deviated amount of voltage.Type: GrantFiled: January 11, 2019Date of Patent: April 19, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Miwako Tanaka, Hiroki Ishihara
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Publication number: 20220073295Abstract: An attachment mechanism includes a first holding member and a second holding member. The first holding member is configured to hold a device side plate of a belt device to attach a main body side plate of an apparatus in which the belt device is incorporated. The second holding member is configured to be fixed to the first holding member. The first holding member and the second folding member are configured to adjust a posture of the device side plate with respect to the main body side plate in assembly of the belt device.Type: ApplicationFiled: August 26, 2021Publication date: March 10, 2022Applicant: Ricoh Company, Ltd.Inventors: Hiroki ISHIHARA, Takehiro NAKAMURA, Kenji NOZAWA
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Publication number: 20220014116Abstract: A power conversion device includes: a power converter circuit which converts a direct-current power, output from a decentralized power supply, into an alternating-current power, and outputs the alternating-current power to a power distribution grid; a voltage target value generation unit which removes a high-frequency variation from a root mean square of a voltage detected by a voltage detection unit to generate a voltage target value; a correction unit which corrects the voltage target value when the correction unit detects that the automatic voltage regulator has performed an action; and a command unit which, if the voltage at the point of interconnection detected by the voltage detection unit deviates from a voltage control deadband referenced to the voltage target value, commands the power converter circuit to output a reactive power based on a magnitude of the deviated amount of voltage.Type: ApplicationFiled: January 11, 2019Publication date: January 13, 2022Applicant: Mitsubishi Electric CorporationInventors: Miwako TANAKA, Hiroki ISHIHARA
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Publication number: 20210391721Abstract: A management apparatus periodically transmits information for setting a first voltage range and a second voltage range smaller than the first voltage range to a distribution power supply apparatus. The distribution power supply apparatus removes, from an interconnection point voltage at an interconnection point with the distribution system, a voltage fluctuation component with a cycle shorter than a cycle in which the information is transmitted from the management apparatus to thereby generate a voltage command value of the interconnection point, and performs reactive power control for eliminating a voltage deviation of the interconnection point voltage with respect to the voltage command value. In the reactive power control, the generation of the reactive power is started when an absolute value of the voltage deviation exceeds the first voltage range, and the reactive power is adjusted until the absolute value falls below the second voltage range.Type: ApplicationFiled: December 10, 2018Publication date: December 16, 2021Applicant: Mitsubishi Electric CorporationInventors: Hiroki ISHIHARA, Miwako TANAKA
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Patent number: 11146080Abstract: The positive electrode of the unit in an m-th configuration stage (m is an integer satisfying 2?m?n) is connected to a negative electrode of the unit in an (m?1)-th configuration stage. A drain-side terminal of the step-up switch included in the m-th configuration stage is connected to a source-side terminal of the step-up switch included in the (m?1)-th configuration stage. A source-side terminal of the step-up switch included in an n-th configuration stage is connected to a negative electrode of the unit included in the n-th configuration stage. The n step-up switches connected in series are connected in parallel to a series circuit including the power storage mechanism and the reactor.Type: GrantFiled: February 5, 2018Date of Patent: October 12, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroki Ishihara, Toshihiro Wada
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Publication number: 20210285057Abstract: An indicator may have improved accuracy for predicting an effect of a medicinal therapy on breast cancer. The method may estimate a breast cancer cell existence ratio and other methods, the method including: (1) analyzing methylation level of (1a) a cytosine residue in a CG portion of nucleotides at positions 1,000 to 1,001 in a nucleotide sequence of SEQ ID NO: 1, (1b) a cytosine residue in a CG portion of nucleotides at positions 1,000 to 1,001 in a nucleotide sequence of SEQ ID NO: 2, (1c) a cytosine residue in a CG portion of nucleotides at positions 1,001 to 1,002 in a nucleotide sequence of SEQ ID NO: 3, or (1d) a combination of the cytosine residues, in a sample derived from a human subject; and (2) estimating the breast cancer cell existence ratio in the sample, based on the methylation level analyzed at (1).Type: ApplicationFiled: September 11, 2019Publication date: September 16, 2021Applicants: NATIONAL CANCER CENTER, H.U. Group Research Institute G.K.Inventors: Hiroki ISHIHARA, Toshikazu USHIJIMA
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Patent number: 10974682Abstract: An airbag device has an airbag that is wound in a rolled state, mounted in a vehicle longitudinal direction of a vehicle and deployable in a curtain-like manner in a vehicle compartment by a gas generated by an inflator in case of emergency. A cover cloth is provided so as to be wound to cover at least part of an outer circumference of the airbag extending in a longitudinal direction. The cover cloth has a first folded-back part that is formed by folding back one end of the cover cloth in a circumferential direction of the outer circumference of a cross section, which is perpendicular to the longitudinal direction of the folded airbag. An edge of the outer circumference of the airbag is held between the first folded-back part and the other end of the cover cloth.Type: GrantFiled: November 25, 2016Date of Patent: April 13, 2021Assignee: AUTOLIV DEVELOPMENT ABInventors: Tetsuya Iwata, Hiroki Ishihara, Akihiro Kawada
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Patent number: 10800188Abstract: A sheet correcting device includes a belt pair to sandwich a sheet with an upper belt and a lower belt to convey the sheet in a sheet conveyance direction, a plurality of curved surface members disposed along the sheet conveyance direction, each of the plurality of curved surface members comprising a curved surface to contact the belt pair where the belt pair sandwiches the sheet, a plurality of pressing members facing the curved surface of each of the plurality of curved surface members, respectively, to press the belt pair against the curved surface of each of the plurality of curved surface members, and a heater to heat the sheet via at least one of the upper belt and the lower belt of the belt pair.Type: GrantFiled: October 9, 2018Date of Patent: October 13, 2020Assignee: Ricoh Company, Ltd.Inventors: Kohki Asada, Genichiroh Kawamichi, Hiroki Ishihara, Satoshi Aizawa
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Publication number: 20200290383Abstract: A cooling device includes a cooling member to absorb heat from a conveyed sheet and a plurality of cooling units to cool the cooling member. Each of the cooling units includes a coolant channel through which a coolant flows and a liquid-cooling device configured to cool the coolant that flows in the coolant channel. The coolant channels are disposed on or inside the cooling member and arranged side by side in a sheet conveyance direction. The coolant channels includes a downstream coolant channel being downstream from at least one of the plurality of coolant channels in the sheet conveyance direction, and an upstream coolant channel being upstream from the downstream coolant channel in the sheet conveyance direction. One of the liquid-cooling devices coupled to the downstream coolant channel has a cooling capacity higher than a cooling capacity of another of the liquid-cooling devices coupled to the upstream coolant channel.Type: ApplicationFiled: January 31, 2020Publication date: September 17, 2020Inventors: Hiroki ISHIHARA, Kohki ASADA, Kenji NOZAWA, Satoshi AIZAWA
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Publication number: 20200269799Abstract: An airbag device has an airbag that is wound in a rolled state, mounted in a vehicle longitudinal direction of a vehicle and deployable in a curtain-like manner in a vehicle compartment by a gas generated by an inflator in case of emergency. A cover cloth is provided so as to be wound to cover at least part of an outer circumference of the airbag extending in a longitudinal direction. The cover cloth has a first folded-back part that is formed by folding back one end of the cover cloth in a circumferential direction of the outer circumference of a cross section, which is perpendicular to the longitudinal direction of the folded airbag. An edge of the outer circumference of the airbag is held between the first folded-back part and the other end of the cover cloth.Type: ApplicationFiled: November 25, 2016Publication date: August 27, 2020Applicant: Autoliv Development ABInventors: Tetsuya IWATA, Hiroki ISHIHARA, Akihiro KAWADA
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Patent number: 10673354Abstract: A power conversion device includes: a first smoothing circuit connected to a first electric device; a second smoothing circuit connected to a second electric device; a first bridge circuit connected to the first smoothing circuit; a transformer having a primary side connected to a third electric device and a secondary side connected to the first bridge circuit and the second smoothing circuit; and a controller, wherein the controller varies a duty ratio of the first bridge circuit at a frequency higher than cutoff frequencies of the first and second smoothing circuits, controls a constant component of the duty ratio to control power exchange between the first and second electric devices, and controls a phase of a varying component of the duty ratio to control power exchange to and from the third electric device.Type: GrantFiled: May 19, 2017Date of Patent: June 2, 2020Assignee: Mitsubishi Electric CorporationInventors: Toshihiro Wada, Hiroki Ishihara
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Patent number: 10661712Abstract: The bird's-eye view image system is provided with a plurality of cameras for acquiring a surrounding image of the work vehicle, a display unit for displaying a bird's-eye view image based on the image acquired by the plurality of cameras, and a control unit for causing a bird's-eye view image to be generated and displayed by the display unit. The plurality of cameras have a first front camera provided in the traveling body for acquiring an image ahead of the travelling body, a first rear camera provided in the traveling body for acquiring an image backward of the traveling body, a right camera provided on the swivel base for acquiring an image rightward of the swivel base, and a left camera provided on the swivel base for acquiring an image leftward of the swivel base.Type: GrantFiled: September 8, 2017Date of Patent: May 26, 2020Assignee: TADANO LTD.Inventors: Hiroki Ishihara, Keiji Sato, Hideyuki Higashi
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Publication number: 20200132774Abstract: In a storage battery system charging control device, on the basis of estimated temperature data until the end of life of a storage battery calculated by a power estimation unit, an ambient temperature estimation unit, and a temperature estimation unit, and a deterioration coefficient stored in a data storage unit, a capacity retention calculation unit sequentially calculates capacity retention data with respect to each state of charge until the end of life of the storage battery, using the state of charge as a parameter. A cumulative capacity calculation unit calculates a cumulative capacity corresponding to each state of charge, on the basis of the rated capacity of the storage battery and the capacity retention data. A charging control voltage determination unit determines charging control voltage on the basis of the cumulative capacities calculated by the cumulative capacity calculation unit.Type: ApplicationFiled: March 5, 2018Publication date: April 30, 2020Applicant: Mitsubishi Electric CorporationInventors: Satoshi HARA, Hisatoshi FUKUMOTO, Toshihiro WADA, Takahito IDA, Hiroki ISHIHARA
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Publication number: 20200091736Abstract: The positive electrode of the unit in an m-th configuration stage (m is an integer satisfying 2?m?n) is connected to a negative electrode of the unit in an (m?1)-th configuration stage. A drain-side terminal of the step-up switch included in the m-th configuration stage is connected to a source-side terminal of the step-up switch included in the (m?1)-th configuration stage. A source-side terminal of the step-up switch included in an n-th configuration stage is connected to a negative electrode of the unit included in the n-th configuration stage. The n step-up switches connected in series are connected in parallel to a series circuit including the power storage mechanism and the reactor.Type: ApplicationFiled: February 5, 2018Publication date: March 19, 2020Applicant: Mitsubishi Electric CorporationInventors: Hiroki ISHIHARA, Toshihiro WADA
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Publication number: 20200091838Abstract: A power conversion device includes: a first smoothing circuit connected to a first electric device; a second smoothing circuit connected to a second electric device; a first bridge circuit connected to the first smoothing circuit; a transformer having a primary side connected to a third electric device and a secondary side connected to the first bridge circuit and the second smoothing circuit; and a controller, wherein the controller varies a duty ratio of the first bridge circuit at a frequency higher than cutoff frequencies of the first and second smoothing circuits, controls a constant component of the duty ratio to control power exchange between the first and second electric devices, and controls a phase of a varying component of the duty ratio to control power exchange to and from the third electric device.Type: ApplicationFiled: May 19, 2017Publication date: March 19, 2020Applicant: Mitsubishi Electric CorporationInventors: Toshihiro WADA, Hiroki ISHIHARA
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Patent number: 10422820Abstract: A voltage sensor includes a vibrator configured to be supported by a mechanical supporting portion and to be given a floating potential, a drive electrode configured to be disposed adjacent to the vibrator and to resonate the vibrator with applied AC voltage, a driver configured to apply an AC voltage that crosses 0 V to the drive electrode, a fixed electrode configured to be disposed adjacent to the vibrator with a gap formed between the fixed electrode and the vibrator, and a calculator configured to detect a magnitude of a measurement target voltage based on a change of a resonant frequency of the vibrator when the measurement target voltage is applied to the fixed electrode.Type: GrantFiled: October 3, 2017Date of Patent: September 24, 2019Assignees: YAZAKI CORPORATION, TOYOTA SCHOOL FOUNDATIONInventors: Hiroki Ishihara, Makoto Ishii, Minoru Sasaki
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Patent number: 10401394Abstract: A voltage sensor includes an oscillator that has a circular or roughly circular shape and is supported by a mechanical support member, a fixed electrode that has a predetermined gap between the oscillator and the fixed electrode, and a drive electrode that is placed at a position different from the fixed electrode across the oscillator, and to which an AC drive voltage is applied to make the oscillator oscillate. In the voltage sensor, an electrostatic attractive force acts on the oscillator by applying a voltage to the fixed electrode, and a resonance frequency of the oscillator changes.Type: GrantFiled: May 1, 2017Date of Patent: September 3, 2019Assignees: YAZAKI CORPORATION, TOYOTA SCHOOL FOUNDATIONInventors: Hiroki Ishihara, Makoto Ishii, Minoru Sasaki
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Publication number: 20190248289Abstract: The bird's-eye view image system is provided with a plurality of cameras for acquiring a surrounding image of the work vehicle, a display unit for displaying a bird's-eye view image based on the image acquired by the plurality of cameras, and a control unit for causing a bird's-eye view image to be generated and displayed by the display unit. The plurality of cameras have a first front camera provided in the traveling body for acquiring an image ahead of the travelling body, a first rear camera provided in the traveling body for acquiring an image backward of the traveling body, a right camera provided on the swivel base for acquiring an image rightward of the swivel base, and a left camera provided on the swivel base for acquiring an image leftward of the swivel base.Type: ApplicationFiled: September 8, 2017Publication date: August 15, 2019Applicant: TADANO LTD.Inventors: Hiroki ISHIHARA, Keiji SATO, Hideyuki HIGASHI