Patents by Inventor Tomoya Ishii
Tomoya Ishii 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: 11964604Abstract: When a tilt in a right-and-left direction occurs in a cargo bed (9) being raised due to imbalance of excavated materials, the tilt is detected as a roll angle (?R), and it is determined whether the absolute value (|?R|) of the roll angle is not less than an imbalance determination value (?2) (S4). When the absolute value is not less than the imbalance determination value (?2) (Yes in S4) and the roll angle (?R) is positive (the cargo bed (9) is rising to the right) (Yes in S8), an oil supply amount (VL) to a hoist cylinder (11) on the left side is increased, and an oil supply amount (VR) to a hoist cylinder (12) on the right side is decreased (S9). When the roll angle (?R) is negative (the cargo bed (9) is rising to the left) (No in S8), the oil supply amount (VL) on the left side is decreased, and the oil supply amount (VR) on the right side is increased (S10).Type: GrantFiled: March 16, 2020Date of Patent: April 23, 2024Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Tomoya Ishii, Kazunori Ishihara, Takeshi Iwaki
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Publication number: 20240097594Abstract: A motor control device includes a control unit configured to cause a current to flow between two terminals out of three terminals of a three-phase motor under PWM control, a first signal information acquisition unit configured to acquire first signal information indicating an on-duty ratio of a PWM control signal in a three-phase energization state after a predetermined period has elapsed since the three-phase motor was started, and a determination unit configured to determine whether the three-phase motor is locked based on the first signal information.Type: ApplicationFiled: November 16, 2021Publication date: March 21, 2024Applicant: AISIN CORPORATIONInventors: Takeru YAMAMOTO, Yoshiaki USHITA, Tomoya ISHII, Naoki ONOSAKA
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Patent number: 11499542Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.Type: GrantFiled: December 23, 2019Date of Patent: November 15, 2022Assignees: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno
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Patent number: 11460023Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.Type: GrantFiled: December 23, 2019Date of Patent: October 4, 2022Assignees: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno
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Patent number: 11226196Abstract: An eyeglass frame shape measurement device measures a shape of an eyeglass frame. The eyeglass frame shape measurement device includes a light projecting optical system that has a light source and emits measurement light from the light source toward a groove of a rim of an eyeglass frame, a light receiving optical system that has a detector and causes the detector to receive reflected light of the measurement light emitted toward the groove in the rim of the eyeglass frame by the light projecting optical system and reflected by the groove of the rim of the eyeglass frame, an acquisition section that acquires a cross-sectional shape of the groove of the rim of the eyeglass frame on the basis of the reflected light received by the detector, and a luminance control section that controls a luminance level of the reflected light to be received by the detector.Type: GrantFiled: June 6, 2018Date of Patent: January 18, 2022Assignee: NIDEK CO., LTD.Inventors: Michihiro Takii, Kunihito Mizukoshi, Tomoya Ishii, Kyoji Takeichi
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Publication number: 20210253014Abstract: When a tilt in a right-and-left direction occurs in a cargo bed (9) being raised due to imbalance of excavated materials, the tilt is detected as a roll angle (?R), and it is determined whether the absolute value (|?R|) of the roll angle is not less than an imbalance determination value (?2) (S4). When the absolute value is not less than the imbalance determination value (?2) (Yes in S4) and the roll angle (?R) is positive (the cargo bed (9) is rising to the right) (Yes in S8), an oil supply amount (VL) to a hoist cylinder (11) on the left side is increased, and an oil supply amount (VR) to a hoist cylinder (12) on the right side is decreased (S9). When the roll angle (?R) is negative (the cargo bed (9) is rising to the left) (No in S8), the oil supply amount (VL) on the left side is decreased, and the oil supply amount (VR) on the right side is increased (S10).Type: ApplicationFiled: March 16, 2020Publication date: August 19, 2021Inventors: Tomoya ISHII, Kazunori ISHIHARA, Takeshi IWAKI
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Publication number: 20200200166Abstract: An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.Type: ApplicationFiled: December 23, 2019Publication date: June 25, 2020Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeru Yamamoto, Ryota Obana, Tomoya Ishii, Motoki Takeno
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Publication number: 20200158496Abstract: An eyeglass frame shape measurement device measures a shape of an eyeglass frame. The eyeglass frame shape measurement device includes a light projecting optical system that has a light source and emits measurement light from the light source toward a groove of a rim of an eyeglass frame, a light receiving optical system that has a detector and causes the detector to receive reflected light of the measurement light emitted toward the groove in the rim of the eyeglass frame by the light projecting optical system and reflected by the groove of the rim of the eyeglass frame, an acquisition section that acquires a cross-sectional shape of the groove of the rim of the eyeglass frame on the basis of the reflected light received by the detector, and a luminance control section that controls a luminance level of the reflected light to be received by the detector.Type: ApplicationFiled: June 6, 2018Publication date: May 21, 2020Applicant: NIDEK CO., LTD.Inventors: Michihiro TAKII, Kunihito MIZUKOSHI, Tomoya ISHII, Kyoji TAKEICHI
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Publication number: 20150300756Abstract: A heat exchanger has a rectangular parallelepiped shape in which refrigerant flows. When sides configuring the heat exchanger having the rectangular parallelepiped shape include a first side, a second side, and a third side, a length of the third side is shortest. A surface surrounded by the first side and the second side is a heat exchange surface of the heat exchanger. A fixing structure for fixing the heat exchanger to a case includes at least one fixing portion disposed on at least one of a surface surrounded by the first side and the third side and a surface surrounded by the second side and the third side. The fixing portion is disposed at a position where a composite vibration mode of not greater than 1000 Hz is minimum.Type: ApplicationFiled: October 21, 2013Publication date: October 22, 2015Applicant: DENSO CORPORATIONInventors: Isao TAKADA, Tomoya ISHII, Tatsuhiko NISHINO, Kenichiro MAEDA, Akinori KUWAYAMA
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Patent number: 8201415Abstract: In an integrated unit including an evaporator and an ejector located inside a tank of the evaporator, a first vibration-isolating seal member and a second vibration-isolating seal member are disposed in a gap between an outer surface of the ejector and an inner surface of the tank. The first vibration-isolating seal member is located between a refrigerant discharge port and a refrigerant suction port of the ejector in a longitudinal direction, and the second vibration-isolating seal member is located between a refrigerant flow inlet of the ejector and the refrigerant suction port in the longitudinal direction. Furthermore, the first vibration-isolating seal member has a seal capability lower than that of the second vibration-isolating seal member, and a vibration isolation capability higher than that of the second vibration-isolating seal member.Type: GrantFiled: June 11, 2008Date of Patent: June 19, 2012Assignee: Denso CorporationInventors: Masaya Nakamura, Thuya Aung, Tomoya Ishii, Keiichi Yoshii
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Publication number: 20080314074Abstract: In an integrated unit including an evaporator and an ejector located inside a tank of the evaporator, a first vibration-isolating seal member and a second vibration-isolating seal member are disposed in a gap between an outer surface of the ejector and an inner surface of the tank. The first vibration-isolating seal member is located between a refrigerant discharge port and a refrigerant suction port of the ejector in a longitudinal direction, and the second vibration-isolating seal member is located between a refrigerant flow inlet of the ejector and the refrigerant suction port in the longitudinal direction. Furthermore, the first vibration-isolating seal member has a seal capability lower than that of the second vibration-isolating seal member, and a vibration isolation capability higher than that of the second vibration-isolating seal member.Type: ApplicationFiled: June 11, 2008Publication date: December 25, 2008Applicant: DENSO CORPORATIONInventors: Masaya Nakamura, Thuya Aung, Tomoya Ishii, Keiichi Yoshii
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Patent number: 7021339Abstract: A vehicle brake hose has inner tube rubber layer 1, first and second braided fiber reinforcing layers 2, 3 that are provided outside the inner tube rubber layer 1, and an outer tube rubber layer 5 that is provided outside the second braided fiber reinforcing layer 3. The first braided fiber reinforcing layer 2 is tightly braided and the second braided fiber reinforcing layer 3 is loosely braided. The first and second braided fiber reinforcing layers 2, 3 are bonded through an adhesion layer 4 to the outer tube rubber layer 5.Type: GrantFiled: June 13, 2003Date of Patent: April 4, 2006Assignee: Hitachi Cable, Ltd.Inventors: Hideki Hagiwara, Tatsuya Kaito, Tomoya Ishii, Akira Uno, Hisashi Ohkubo, Hideki Horikoshi
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Publication number: 20050051227Abstract: A vehicle brake hose has inner tube rubber layer 1, first and second braided fiber reinforcing layers 2, 3 that are provided outside the inner tube rubber layer 1, and an outer tube rubber layer 5 that is provided outside the second braided fiber reinforcing layer 3. The first braided fiber reinforcing layer 2 is tightly braided and the second braided fiber reinforcing layer 3 is loosely braided. The first and second braided fiber reinforcing layers 2, 3 are bonded through an adhesion layer 4 to the outer tube rubber layer 5.Type: ApplicationFiled: June 13, 2003Publication date: March 10, 2005Inventors: Hideki Hagiwara, Tatsuya Kaito, Tomoya Ishii, Akira Uno, Hisashi Ohkubo, Hideki Horikoshi