Patents by Inventor Kazuya Kato
Kazuya 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).
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Publication number: 20240383162Abstract: A working machine may include a working unit, a prime mover configured to drive the working unit, a housing that supports the working unit and houses the prime mover, a trigger lever extending through a through hole defined in the housing so as to be located inside and outside the housing and configured to be manipulated by a user, a sensor configured to detect a movement of the trigger lever, and a control unit configured to control the prime mover based on a detection result by the sensor. The trigger lever may be rotatably supported by the housing via a rotation shaft. The trigger lever may include a block portion that has a shape of a substantially solid of revolution about a rotation axis of the trigger lever. A peripheral edge of the through hole may include a facing edge that faces an outer circumferential surface of the block portion.Type: ApplicationFiled: May 6, 2024Publication date: November 21, 2024Applicant: Makita CorporationInventor: Kazuya Kato
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Publication number: 20240188503Abstract: A cutter machine may include a first blade, a second blade configured to rotate relative to the first blade, a base member supporting the first blade and the second blade, a screw member including a head portion and a shaft portion extending from the head portion which is a proximal end of the shaft portion, wherein the screw member fastens the first blade and the base member to each other, a looseness restraint member attached to the shaft portion and configured to be pressed by the head portion to restrain loosening of the screw member, and a fall-off restraint member attached to the shaft portion on a distal side of the shaft portion relative to the looseness restraint member and configured to restrain the looseness restraint member from moving relative to the shaft portion in a direction from a proximal side to the distal side of the shaft portion.Type: ApplicationFiled: December 1, 2023Publication date: June 13, 2024Applicant: MAKITA CORPORATIONInventor: Kazuya KATO
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Patent number: 11971453Abstract: A battery state detection device including a battery post terminal, a case accommodating a circuit board including a current sensing circuit that senses a current by being electrically connected to the battery post terminal, and a harness connection part provided on the case, the harness connection part being capable of having a harness connected thereto, in which the battery post terminal includes a holding part held on one of faces of the case, and an insert part provided in a region from the holding part along a face adjacent to the one of the faces of the case, the battery post terminal contacts the case via at least two faces, the two faces including the one of the faces and the face adjacent to the one of the faces, and the case includes a fitting part, the fitting part being adapted to fit around the insert part by accommodating the insert part.Type: GrantFiled: September 24, 2021Date of Patent: April 30, 2024Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun Iwasaki, Ryosuke Takahashi, Kazuya Kato, Keita Saji, Ryusuke Kakoi
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Publication number: 20220384183Abstract: A substrate cleaning method includes: providing a substrate including a low-k layer containing silicon to a substrate support; etching the low-k layer by a plasma generated from a first gas; separating the etched substrate from the substrate support; and removing a reaction product attached to the substrate in the etching by a plasma generated from a second gas. The second gas includes a first carbon-containing gas represented by CxHyFz (y?0, x/z>¼).Type: ApplicationFiled: May 25, 2022Publication date: December 1, 2022Applicant: Tokyo Electron LimitedInventors: Wakako ISHIDA, Yasunori HATAMURA, Eundo BAE, Kazuya KATO, Inho JANG, Eisuke NUMAZAWA
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Publication number: 20220011367Abstract: A battery state detection device including a battery post terminal, a case accommodating a circuit board including a current sensing circuit that senses a current by being electrically connected to the battery post terminal, and a harness connection part provided on the case, the harness connection part being capable of having a harness connected thereto, in which the battery post terminal includes a holding part held on one of faces of the case, and an insert part provided in a region from the holding part along a face adjacent to the one of the faces of the case, the battery post terminal contacts the case via at least two faces, the two faces including the one of the faces and the face adjacent to the one of the faces, and the case includes a fitting part, the fitting part being adapted to fit around the insert part by accommodating the insert part.Type: ApplicationFiled: September 24, 2021Publication date: January 13, 2022Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun IWASAKI, Ryosuke TAKAHASHI, Kazuya KATO, Keita SAJI, Ryusuke KAKOI
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Patent number: 10889244Abstract: The lighting control device includes a controller, a diagnosis circuit, a latch circuit, and a logic circuit. The controller outputs a control signal. The diagnosis circuit outputs an irregular signal. The latch circuit decides a state of a forcibly lighting signal. The logic circuit controls a light source in accordance with an ignition signal, the control signal, and the forcibly lighting signal. The logic circuit turns on the light source in accordance with the ignition signal while receiving the forcibly lighting signal, and turns on the light source in accordance with the control signal while not receiving the forcibly lighting signal.Type: GrantFiled: August 18, 2016Date of Patent: January 12, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masatoshi Ueno, Masaaki Takamatsu, Toshiaki Sasaki, Kazuya Kato
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Patent number: 10632669Abstract: Embodiments provide a helical layer structure including: a helical core member which is formed of a flexible, lengthy, flat plate-like core member and which is formed of a steel plate made of a metal material, such as iron; and a polymeric coating layer which is formed of a polymeric material such as a thermosetting elastic material or a thermoplastic elastic material, and which coats the helical core member. The manufacturing method of the helical layer structure includes: a feeding step of feeding a core member having flexibility; a supply step of supplying the polymeric material having fluidity; a coating step of coating the core member with the polymeric material; a cooling step of cooling a coated intermediate which is coated with the polymeric material; and a helix formation step of helically twisting the coated intermediate to form the helical layer structure.Type: GrantFiled: December 7, 2017Date of Patent: April 28, 2020Assignees: KASEI KOGYO, CO., LTD., HOWA PLASTICS. CO., LTD.Inventors: Kazuo Kondo, Kazuya Kato, Hiroyuki Oe
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Patent number: 10477643Abstract: An impedance adjustment circuit varies an impedance of a transistor, thereby adjusting an impedance of a current path. A second control circuit controls a drive circuit to turn on or off at least one switch device of the switch devices while the impedance adjustment circuit is increasing the impedance of the current path. The impedance adjustment circuit adjusts the impedance of the current path to the minimum value after the drive circuit switches the at least one switch device from off to on or from on to off.Type: GrantFiled: August 11, 2017Date of Patent: November 12, 2019Inventors: Toshiaki Nakamura, Kazuya Kato, Kenichi Fukuda, Akihiro Kishimoto
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Patent number: 10393519Abstract: A fall detection sensor for a rammer includes an acceleration sensor, a low-pass filter, an integrator, a first comparator, a second comparator, and control means. The second comparator compares wave patterns of input signals with a plurality of types of fall sample waves and non-fall sample waves stored in advance. The second comparator outputs a fall detection signal upon determining that the rammer has fallen when the similarity with one of the fall sample waves exceeds a threshold, and the second comparator outputs a non-fall signal upon determining that the rammer has not fallen when the similarity with one of the non-fall sample waves exceeds a threshold.Type: GrantFiled: September 29, 2017Date of Patent: August 27, 2019Assignees: MIKASA SANGYO CO., LTD., NANO STUDIO INC.Inventors: Yoshinori Harashima, Hideo Saito, Masahiro Ikeda, Kazuma Hirai, Yuki Shibuichi, Kazuya Kato
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Publication number: 20190101388Abstract: Provided is a fall detection sensor for rammer capable of determining a fall state of a rammer, that operates with a large vibration and impact, with high accuracy, and stopping a motor (an engine or the like) immediately. The fall detection sensor for rammer includes an acceleration sensor (2), a low-pass filter (3), an integrator (4), a first comparator (5), a second comparator (6), and control means (7). The second comparator (6) compares wave patterns of input signals (x?-z?) with a plurality of types of of fall sample waves (FW) and non-fall sample waves (NFW) stored in advance. The second comparator (6) outputs a fall detection signal (fs) upon determining that the rammer has fallen when the similarity with the fall sample wave (FW) exceeds a threshold, and the second comparator (6) outputs a non-fall signal (nfs) upon determining that the rammer has not fallen when the similarity with the non-fall sample wave (NFW) exceeds a threshold.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Applicants: MIKASA SANGYO CO., LTD., NANO STUDIO INC.Inventors: Yoshinori HARASHIMA, Hideo SAITO, Masahiro IKEDA, Kazuma HIRAI, Yuki SHIBUICHI, Kazuya KATO
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Patent number: 10231312Abstract: In a lighting device, when determining that both of a first measuring value and a second measuring value are not an abnormal value, a controller is configured to control an output of a power converter based on the first and second measuring values. The first measuring value is a temperature inside a main body of the lighting device, sensed by a first temperature sensor. The second measuring value is a temperature of a light source, sensed by a second temperature sensor. When determining that at least one of the first and second measuring values is the abnormal value, the controller is configured to control the output of the power converter to another value that is different from a value of the output set based on the first and second measuring values.Type: GrantFiled: September 3, 2017Date of Patent: March 12, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazuya Kato, Toshiaki Nakamura, Akihiro Kishimoto, Kenichi Fukuda
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Patent number: 10191119Abstract: An inspecting apparatus is for a noncontact power transfer system that transfers electric power from a transmitting unit to a receiving device in a noncontact manner. The inspecting apparatus includes a coupling capacitance varying unit configured to vary at least one of a first coupling capacitance formed between a transmitting-side passive electrode and a receiving-side passive electrode and a second coupling capacitance formed between a transmitting-side active electrode and a receiving-side active electrode when the receiving device is placed on the transmitting unit, and a control unit configured to monitor an alternating-current voltage generated between the receiving-side passive electrode and the receiving-side active electrode of the receiving device or a direct-current voltage obtained through conversion by a rectifying circuit.Type: GrantFiled: September 18, 2015Date of Patent: January 29, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinji Goma, Kazuya Kato
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Patent number: 10033217Abstract: A wireless power receiver device includes a sheet-like electrode sheet section and a power receiver section. The electrode sheet section includes a power receiver side active electrode and a power receiver side passive electrode that are substantially coplanar and formed into sheet-like shapes; lead lines that are coplanar with both the electrodes, extended from the respective electrodes, and formed into sheet-like shapes; and an insulation sheet that covers both the electrodes and both the lead lines from both sides thereof. The power receiver section includes a step-down unit that steps down an alternating-current voltage induced between end portions of the lead lines; a power receiver module that rectifies and smoothes the alternating-current voltage that is stepped down by the step-down unit; and a connector for outputting an output voltage of the power receiver module.Type: GrantFiled: February 26, 2015Date of Patent: July 24, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Shinji Goma, Kazuya Kato, Tsutomu Ieki
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Patent number: 10009970Abstract: A power supply device includes converters, a command circuit, and a setter. The converters correspond to loads. The command circuit controls the converters. The setter sets a magnitude of an output of at least one target converter of the converters in accordance with an output characteristic representing a relationship between an input voltage of the at least one target converter and an output limit value which is an upper limit value of the output from the at least one target converter. The output characteristic is a characteristic that the output limit value decreases as the input voltage lowers when the input voltage is lower than a threshold. The setter varies the threshold of the output characteristic in accordance with an operation status of the converters and sets the magnitude of the output from the at least one target converter in accordance with the output characteristic whose threshold has been varied.Type: GrantFiled: August 18, 2017Date of Patent: June 26, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akihiro Kishimoto, Toshiaki Nakamura, Kenichi Fukuda, Kazuya Kato
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Publication number: 20180154414Abstract: Embodiments provide a helical layer structure including: a helical core member which is formed of a flexible, lengthy, flat plate-like core member and which is formed of a steel plate made of a metal material, such as iron; and a polymeric coating layer which is formed of a polymeric material such as a thermosetting elastic material or a thermoplastic elastic material, and which coats the helical core member. The manufacturing method of the helical layer structure includes: a feeding step of feeding a core member having flexibility; a supply step of supplying the polymeric material having fluidity; a coating step of coating the core member with the polymeric material; a cooling step of cooling a coated intermediate which is coated with the polymeric material; and a helix formation step of helically twisting the coated intermediate to form the helical layer structure.Type: ApplicationFiled: December 7, 2017Publication date: June 7, 2018Applicants: Kasei Kogyo, Co., Ltd., HOWA Plastics. Co., Ltd.Inventors: Kazuo KONDO, Kazuya KATO, Hiroyuki OE
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Publication number: 20180070416Abstract: In a lighting device, when determining that both of a first measuring value and a second measuring value are not an abnormal value, a controller is configured to control an output of a power converter based on the first and second measuring values. The first measuring value is a temperature inside a main body of the lighting device, sensed by a first temperature sensor. The second measuring value is a temperature of a light source, sensed by a second temperature sensor. When determining that at least one of the first and second measuring values is the abnormal value, the controller is configured to control the output of the power converter to another value that is different from a value of the output set based on the first and second measuring values.Type: ApplicationFiled: September 3, 2017Publication date: March 8, 2018Inventors: Kazuya KATO, Toshiaki NAKAMURA, Akihiro KISHIMOTO, Kenichi FUKUDA
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Publication number: 20180063909Abstract: A power supply device includes converters, a command circuit, and a setter. The converters correspond to loads. The command circuit controls the converters. The setter sets a magnitude of an output of at least one target converter of the converters in accordance with an output characteristic representing a relationship between an input voltage of the at least one target converter and an output limit value which is an upper limit value of the output from the at least one target converter. The output characteristic is a characteristic that the output limit value decreases as the input voltage lowers when the input voltage is lower than a threshold. The setter varies the threshold of the output characteristic in accordance with an operation status of the converters and sets the magnitude of the output from the at least one target converter in accordance with the output characteristic whose threshold has been varied.Type: ApplicationFiled: August 18, 2017Publication date: March 1, 2018Inventors: Akihiro KISHIMOTO, Toshiaki NAKAMURA, Kenichi FUKUDA, Kazuya KATO
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Publication number: 20180063918Abstract: An impedance adjustment circuit varies an impedance of a transistor, thereby adjusting an impedance of a current path. A second control circuit controls a drive circuit to turn on or off at least one switch device of the switch devices while the impedance adjustment circuit is increasing the impedance of the current path. The impedance adjustment circuit adjusts the impedance of the current path to the minimum value after the drive circuit switches the at least one switch device from off to on or from on to off.Type: ApplicationFiled: August 11, 2017Publication date: March 1, 2018Inventors: Toshiaki NAKAMURA, Kazuya KATO, Kenichi FUKUDA, Akihiro KISHIMOTO
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Patent number: 9884582Abstract: A lighting device includes a thermal sensor, power converter circuits and a control circuit. The thermal sensor is configured to measure an internal temperature of a case. The power converter circuits are housed in the case and configured to be connected with different types of light sources, respectively. The control circuit is housed in the case and has priorities that are provided with respect to the different types of light sources according to their respective types. The control circuit is configured to, when the internal temperature is greater than a threshold, control the respective outputs of the power converter circuits so as to preferentially decrease an output for a light source corresponding to a first priority.Type: GrantFiled: April 5, 2017Date of Patent: February 6, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kazuya Kato, Toshiaki Nakamura, Akihiro Kishimoto, Kenichi Fukuda, Masaaki Takamatsu
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Patent number: 9866040Abstract: A power transmission device applies a alternating-current voltage to an active electrode OPPOSING an active electrode of a power reception device with a gap therebetween, and to a passive electrode OPPOSING a passive electrode of the power reception device with a gap therebetween and transmits power via electric field coupling. The power transmission device includes a controller that monitors a voltage applied to the passive electrode. If a change in the voltage per unit time exceeds a threshold, the controller determines that a metal foreign object has become interposed between the active electrodes and a user has touched the metal foreign object, and stops the transmission of power to the power reception device. Thus, a power transmission device and a wireless power transmission system are provided that are capable of preventing with certainty a malfunction due to a foreign object when a foreign object has become interposed between electrodes.Type: GrantFiled: November 18, 2015Date of Patent: January 9, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Kazuya Kato