Patents by Inventor Kazuyuki Kato
Kazuyuki Kato 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).
-
Patent number: 12178563Abstract: An object of the invention is to perform MRI imaging which is less likely to be affected by a body motion without prolonging an imaging time. The control unit takes in images captured by the camera at a predetermined frame rate. The imaging pulse sequence is divided into small sequences at a time width corresponding to the frame rate of the camera. The control unit, before causing the imaging unit to execute one small sequence, detects a displacement of the subject with respect to a predetermined reference position or a motion speed of the subject based on an image of the latest frame, and causes the imaging unit to execute the small sequence when a detection result is within a predetermined allowable range and waits until an image of a next frame is taken in according to the frame rate without causing the imaging unit to execute the small sequence when the detection result exceeds the allowable range.Type: GrantFiled: September 2, 2022Date of Patent: December 31, 2024Assignee: FUJIFILM CorporationInventors: Takeshi Yatsuo, Kazuyuki Kato
-
Publication number: 20240106276Abstract: A wireless power supply system includes a plurality of power transmission units that receives and supplies power to a power receiving unit via the power transmission coil in a resonance state, and a switching control unit that switches a state of a first power transmission unit to a resonance state when the magnitude of the magnetic flux generated in a first power transmission coil of the first power transmission unit, which is one of the plurality of power transmission units, is greater than a predetermined threshold value, and switches to a non-resonance state when the magnitude is less than the threshold value. The threshold is set as a magnitude that exceeds the magnetic flux generated in the first power transmission coil due to coupling between the first power transmission coil and a second power transmission coil of a second power transmission unit, which is adjacent to first power transmission coil.Type: ApplicationFiled: November 30, 2023Publication date: March 28, 2024Applicant: DENSO CORPORATIONInventors: Mitsuru SHIBANUMA, Eisuke TAKAHASHI, Masaya TAKAHASHI, Nobuhisa YAMAGUCHI, Kazuyuki KATO
-
Patent number: 11885856Abstract: Provided is a coil device capable of improving operability or durability thereof, being attached to a subject in a close contact state regardless of the size of a head of the subject, and obtaining a high-quality MRI image. The coil device includes at least one coil unit which has a coil element and a coil support portion which has a mechanism for attaching the coil unit to a head of a subject. The coil support portion includes a base portion, a support body which is connected to the base portion and has an elastic member, and a holder which connects the support body to the at least one coil unit and the holder has at least three contact points which are formed directly or indirectly with respect to the base portion.Type: GrantFiled: October 23, 2020Date of Patent: January 30, 2024Assignee: FUJIFILM HEALTHCARE CORPORATIONInventors: Kohjiro Iwasawa, Takanori Nishiyama, Kazuyuki Kato, Hideta Habara, Yosuke Otake, Satoshi Yamashita, Toru Shirai
-
Publication number: 20240027541Abstract: A malfunction diagnosis apparatus diagnoses a malfunction of a wireless power transmission system including a plurality of power transmission units and a vehicle. Each unit is equipped with a plurality of power transmitting coils. The vehicle is equipped with a power receiving coil which works to receive electric power transferred from each unit. The apparatus includes an information receiver which receives power transmission unit information outputted from each unit and the power receiving information outputted from the vehicle, and a diagnostic unit which analyzes present position and time information about the vehicle which are included in the vehicle power receiving information, to identify target power transmission units that have transferred the electric power to the vehicle. The diagnostic unit works to compare between transmitted power information about the target power transmission units to diagnose a state of transmission of the electric power from each unit.Type: ApplicationFiled: September 29, 2023Publication date: January 25, 2024Applicant: DENSO CORPORATIONInventor: Kazuyuki KATO
-
Publication number: 20230396100Abstract: A primary-side resonant circuit of a power transmission apparatus has an impedance varying element that increases, when supply of electric power is stopped, an input impedance of the primary-side resonant circuit so as to have predetermined standby current flowing through a primary-side coil. A power reception apparatus includes a magnetic flux amplifier circuit configured to amplify magnetic flux generated by the standby current flowing through the primary-side coil of the primary-side resonant circuit. The power transmission apparatus further includes a primary-side detection circuit configured to detect a change in the voltage of the primary-side coil, a change in electric current flowing through the primary-side coil or a change in a magnetic field in the vicinity of the primary-side coil; each of the changes is caused by the magnetic flux amplified by the magnetic flux amplifier circuit.Type: ApplicationFiled: August 17, 2023Publication date: December 7, 2023Applicant: DENSO CORPORATIONInventors: Masaya TAKAHASHI, Mitsuru SHIBANUMA, Kazuyuki KATO, Yusei NAKAYASHIKI, Eisuke TAKAHASHI, Nobuhisa YAMAGUCHI
-
Publication number: 20230387723Abstract: A wireless power transmission system is provided which wirelessly transfer electric power from a power transmitter to a power receiver. The wireless power transmission system works to set a capacitance of a primary capacitor of a primary resonant circuit to undergo resonance with a self-inductance of a primary coil at an angular frequency that is an operating frequency. A tertiary capacitor of a tertiary resonant circuit has a capacitance set to undergo resonance with a self-inductance of a tertiary coil. A secondary capacitor of a secondary resonant circuit has a capacitance set to reduce a reactive component of ac power arising from self-inductances and mutual inductances of the primary coil, the secondary coil, and the tertiary coil.Type: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Applicant: DENSO CORPORATIONInventors: Masaya TAKAHASHI, Mitsuru SHIBANUMA, Kazuyuki KATO, Yusei NAKAYASHIKI, Eisuke TAKAHASHI, Nobuhisa YAMAGUCHI
-
Patent number: 11774527Abstract: The receiving coil device includes one or a plurality of receiving coils configured to cover a head of a subject, a base portion on which the head of the subject is to be placed, a holder portion supported by the base portion, one of the receiving coils being fixed to the holder portion, a mechanism portion configured to bring the receiving coil fixed to the holder portion into close contact with a part of the head, and further, a detection unit configured to detect a physical quantity related to a displacement of the holder portion on the holder portion or the base portion. The physical quantity detected by the detection unit is sent to an MRI apparatus including the receiving coil device.Type: GrantFiled: January 26, 2022Date of Patent: October 3, 2023Assignee: FUJIFILM Healthcare CorporationInventors: Kohjiro Iwasawa, Yosuke Otake, Hideta Habara, Kazuyuki Kato, Toru Shirai, Yukio Kaneko, Hikaru Hanada
-
Publication number: 20230078113Abstract: An object of the invention is to perform MRI imaging which is less likely to be affected by a body motion without prolonging an imaging time. The control unit takes in images captured by the camera at a predetermined frame rate. The imaging pulse sequence is divided into small sequences at a time width corresponding to the frame rate of the camera. The control unit, before causing the imaging unit to execute one small sequence, detects a displacement of the subject with respect to a predetermined reference position or a motion speed of the subject based on an image of the latest frame, and causes the imaging unit to execute the small sequence when a detection result is within a predetermined allowable range and waits until an image of a next frame is taken in according to the frame rate without causing the imaging unit to execute the small sequence when the detection result exceeds the allowable range.Type: ApplicationFiled: September 2, 2022Publication date: March 16, 2023Inventors: Takeshi Yatsuo, Kazuyuki Kato
-
Publication number: 20220268864Abstract: The receiving coil device includes one or a plurality of receiving coils configured to cover a head of a subject, a base portion on which the head of the subject is to be placed, a holder portion supported by the base portion, one of the receiving coils being fixed to the holder portion, a mechanism portion configured to bring the receiving coil fixed to the holder portion into close contact with a part of the head, and further, a detection unit configured to detect a physical quantity related to a displacement of the holder portion on the holder portion or the base portion. The physical quantity detected by the detection unit is sent to an MRI apparatus including the receiving coil device.Type: ApplicationFiled: January 26, 2022Publication date: August 25, 2022Inventors: Kohjiro IWASAWA, Yosuke OTAKE, Hideta HABARA, Kazuyuki KATO, Toru SHIRAI, Yukio KANEKO, Hikaru HANADA
-
Publication number: 20210278489Abstract: Provided is a coil device capable of improving operability or durability thereof, being attached to a subject in a close contact state regardless of the size of a head of the subject, and obtaining a high-quality MRI image. The coil device includes at least one coil unit which has a coil element and a coil support portion which has a mechanism for attaching the coil unit to a head of a subject. The coil support portion includes a base portion, a support body which is connected to the base portion and has an elastic member, and a holder which connects the support body to the at least one coil unit and the holder has at least three contact points which are formed directly or indirectly with respect to the base portion.Type: ApplicationFiled: October 23, 2020Publication date: September 9, 2021Inventors: Kohjiro IWASAWA, Takanori NISHIYAMA, Kazuyuki KATO, Hideta HABARA, Yosuke OTAKE, Satoshi YAMASHITA, Toru SHIRAI
-
Patent number: 11038222Abstract: A power storage device includes a storage battery that stores electric power, a battery management unit that monitors and protects the storage battery, an inverter configured to convert DC power outputted from the storage battery into AC power and outputting the AC power, and convert externally supplied AC power into DC power and supplying the DC power to the storage battery, a liquid storage container that houses therein the storage battery, the battery management unit, and the inverter in a state where surroundings of the storage battery, the battery management unit, and the inverter are filled with a liquid, a temperature adjustment unit that performs heat transfer between the liquid and outside air to adjust a temperature of the liquid to a particular target temperature, and a heat insulating material arranged to surround the liquid storage container.Type: GrantFiled: April 3, 2017Date of Patent: June 15, 2021Assignee: DENSO CORPORATIONInventors: Masakazu Fukada, Masashi Shiotani, Jiro Kameda, Kazuyuki Kato
-
Patent number: 10852372Abstract: An MRI image with high image quality can be acquired regardless of a size of an examinee. An array coil includes: a coil unit in which a plurality of sub-coils which includes a loop coil portion in which a conductor having flexibility with a predetermined length is curved and which is adjusted to receive a magnetic resonance signal from an examinee are arranged at predetermined intervals; and a coil casing that is formed of a sheet-shaped material which expands and contracts in at least one direction and accommodates the coil unit therein. At least one position of each of the plurality of sub-coils is fixed to the coil casing and an inter-center distance between the sub-coils varies with expansion and contraction of the coil casing.Type: GrantFiled: April 15, 2019Date of Patent: December 1, 2020Assignee: HITACHI, LTD.Inventors: Kohjiro Iwasawa, Yosuke Otake, Kazuyuki Kato, Hisaaki Ochi
-
Publication number: 20200256937Abstract: An object of the present invention is to provide a radio-frequency coil device that can be brought into close contact with a subject regardless of a size of the subject and can obtain a high-quality MRI image. The radio-frequency coil device includes at least one flexible coil unit, and a fixture is disposed to surround an outer periphery of the coil unit. The fixture includes, for example, a pair of panels disposed on both sides of the coil unit, and a fixing belt that is provided between the panels and fastens and fixes the panels. The coil unit is deformed by fastening the fixture, to be disposed in close contact with various head shapes.Type: ApplicationFiled: January 31, 2020Publication date: August 13, 2020Inventors: Kohjiro IWASAWA, Kazuyuki KATO, Hideta HABARA, Yosuke OTAKE, Satoshi YAMASHITA
-
Publication number: 20190383891Abstract: An MRI image with high image quality can be acquired regardless of a size of an examinee. An array coil includes: a coil unit in which a plurality of sub-coils which includes a loop coil portion in which a conductor having flexibility with a predetermined length is curved and which is adjusted to receive a magnetic resonance signal from an examinee are arranged at predetermined intervals; and a coil casing that is formed of a sheet-shaped material which expands and contracts in at least one direction and accommodates the coil unit therein. At least one position of each of the plurality of sub-coils is fixed to the coil casing and an inter-center distance between the sub-coils varies with expansion and contraction of the coil casing.Type: ApplicationFiled: April 15, 2019Publication date: December 19, 2019Applicant: Hitachi, Ltd.Inventors: Kohjiro IWASAWA, Yosuke OTAKE, Kazuyuki KATO, Hisaaki OCHI
-
Publication number: 20190140327Abstract: A power storage device includes a storage battery that stores electric power, a battery management unit that monitors and protects the storage battery, an inverter configured to convert DC power outputted from the storage battery into AC power and outputting the AC power, and convert externally supplied AC power into DC power and supplying the DC power to the storage battery, a liquid storage container that houses therein the storage battery, the battery management unit, and the inverter in a state where surroundings of the storage battery, the battery management unit, and the inverter are filled with a liquid, a temperature adjustment unit that performs heat transfer between the liquid and outside air to adjust a temperature of the liquid to a particular target temperature, and a heat insulating material arranged to surround the liquid storage container.Type: ApplicationFiled: April 3, 2017Publication date: May 9, 2019Inventors: Masakazu FUKADA, Masashi SHIOTANI, Jiro KAMEDA, Kazuyuki KATO
-
Patent number: 9879642Abstract: In a straddle type vehicle including a body frame, a power unit supported to the body frame, and a throttle body connected to the power unit and adjusting the intake air amount, a gyro sensor for detecting behavior of the vehicle is arranged in the throttle body.Type: GrantFiled: April 26, 2016Date of Patent: January 30, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Kazuyuki Kato, Kazuhito Hotta
-
Publication number: 20160348621Abstract: In a straddle type vehicle including a body frame, a power unit supported to the body frame, and a throttle body connected to the power unit and adjusting the intake air amount, a gyro sensor for detecting behavior of the vehicle is arranged in the throttle body.Type: ApplicationFiled: April 26, 2016Publication date: December 1, 2016Inventors: Kazuyuki KATO, Kazuhito HOTTA
-
Patent number: 9324542Abstract: In a plasma processing apparatus of an exemplary embodiment, energy of microwaves is introduced from an antenna into the processing container through a dielectric window. The plasma processing apparatus includes a central introducing unit and a peripheral introducing unit. A central introduction port of the central introducing unit injects a gas just below the dielectric window. A plurality of peripheral introduction ports of the peripheral introducing unit injects a gas towards a periphery of the placement region. The central introducing unit is connected to with a plurality of first gas sources including a reactive gas source and a rare gas source through a plurality of first flow rate control units. The peripheral introducing unit is connected to with a plurality of second gas sources including a reactive gas source and a rare gas source through a plurality of second flow rate control units.Type: GrantFiled: September 20, 2013Date of Patent: April 26, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Naoki Matsumoto, Yugo Tomita, Naoki Mihara, Kazuki Takahashi, Michitaka Aita, Jun Yoshikawa, Takahiro Senda, Yoshiyasu Sato, Kazuyuki Kato, Kenji Sudou, Hitoshi Mizusugi
-
Publication number: 20150228459Abstract: In a plasma processing apparatus of an exemplary embodiment, energy of microwaves is introduced from an antenna into the processing container through a dielectric window. The plasma processing apparatus includes a central introducing unit and a peripheral introducing unit. A central introduction port of the central introducing unit injects a gas just below the dielectric window. A plurality of peripheral introduction ports of the peripheral introducing unit injects a gas towards a periphery of the placement region. The central introducing unit is connected to with a plurality of first gas sources including a reactive gas source and a rare gas source through a plurality of first flow rate control units. The peripheral introducing unit is connected to with a plurality of second gas sources including a reactive gas source and a rare gas source through a plurality of second flow rate control units.Type: ApplicationFiled: September 20, 2013Publication date: August 13, 2015Applicant: TOKYO ELECTRON LIMITEDInventors: Naoki Matsumoto, Yugo Tomita, Naoki Mihara, Kazuki Takahashi, Michitaka Aita, Jun Yoshikawa, Takahiro Senda, Yoshiyasu Sato, Kazuyuki Kato, Kenji Sudou, Hitoshi Mizusugi
-
Publication number: 20150053346Abstract: A plasma processing apparatus includes a flow splitter for dividing a common gas into two common gas streams of common gas branch lines. A central introduction portion connected to one of the common gas branch lines supplies a common gas to a central portion of a substrate to be processed. A peripheral introducing portion connected to the other one of the common gas branch lines supplies the common gas to a peripheral portion of the substrate. The peripheral introducing portion has peripheral inlets arranged about a circumferential region above the substrate. An additive gas line is connected to an additive gas source to add an additive gas to at least one of the common gas branch lines. In addition, an electron temperature of a plasma in a region where the peripheral inlets are disposed is lower than that in a region where the introduction portion is disposed.Type: ApplicationFiled: November 4, 2014Publication date: February 26, 2015Applicant: TOKYO ELECTRON LIMITEDInventors: Naoki MATSUMOTO, Wataru YOSHIKAWA, Yasuhiro SEO, Kazuyuki KATO