Patents by Inventor Mitsuharu MATSUNO
Mitsuharu MATSUNO 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: 10724641Abstract: The flow path opening/closing portion replacement device comprises a first enclosing portion having a first opening and a shutter, and enclosing, in a state where the shutter has closed the first opening, an end portion of a converging pipe through which a fluid passes and a valve which is attached to the end portion; a second enclosing portion having a detachable member enabling the valve to be detached and a second opening which can be contiguous with the first opening and enabling removal/insertion of the detachable member, and enclosing the valve together with the first enclosing portion in a contiguous opening state in which the first opening and the second opening are contiguous, wherein, in a state where the second enclosing portion has enclosed the valve together with the first enclosing portion in the contiguous opening state, the valve can be replaced by the detachable member.Type: GrantFiled: October 23, 2019Date of Patent: July 28, 2020Assignee: RIKOU Co., Ltd.Inventor: Mitsuharu Matsuno
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Publication number: 20200132199Abstract: The flow path opening/closing portion replacement device comprises a first enclosing portion having a first opening and a shutter, and enclosing, in a state where the shutter has closed the first opening, an end portion of a converging pipe through which a fluid passes and a valve which is attached to the end portion; a second enclosing portion having a detachable member enabling the valve to be detached and a second opening which can be contiguous with the first opening and enabling removal/insertion of the detachable member, and enclosing the valve together with the first enclosing portion in a contiguous opening state in which the first opening and the second opening are contiguous, wherein, in a state where the second enclosing portion has enclosed the valve together with the first enclosing portion in the contiguous opening state, the valve can be replaced by the detachable member.Type: ApplicationFiled: October 23, 2019Publication date: April 30, 2020Applicant: RIKOU Co., Ltd.Inventor: Mitsuharu MATSUNO
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Patent number: 10594240Abstract: In a MG control device, a standard voltage calculation part calculates a d axis standard voltage and a q axis standard voltage in a standard state in which no demagnetization occurs in permanent magnets of a MG. A magnetic flux change amount estimation value calculation part calculates a basic magnetic flux change amount estimation value based on a deviation of a specific value from the q-axis standard voltage. This specific value is obtained by multiplying q axis real voltage with a ratio of the d axis standard voltage and the d axis real voltage. A magnetic flux change amount estimation value correction part adjusts a magnetic flux change amount estimation value by correcting the basic magnetic flux change amount estimation value relatively to a detection threshold value based on characteristic change of the MG in a demagnetization state of the permanent magnets of the MG.Type: GrantFiled: January 22, 2019Date of Patent: March 17, 2020Assignee: DENSO CORPORATIONInventors: Takashi Ogawa, Masaki Nishiyama, Mitsuharu Matsuno
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Patent number: 10536101Abstract: In a MG control device, a standard voltage calculation part calculates a d-axis standard voltage Vd_std and a q-axis standard voltage Vq_std to be supplied to a MG. A first magnetic flux change amount estimation value calculation part calculates a first magnetic flux change amount estimation value ??1 based on a deviation of a specific value from the q axis standard voltage Vq_std, where the specific value is obtained by multiplying a ratio (Vd_std/Vd_real) with a q-axis real voltage Vq_real, where Vd_real represents a d-axis real voltage. A second magnetic flux change amount estimation value calculation part calculates a second magnetic flux change amount estimation value ??2 based on a deviation of the q-axis real voltage Vq_real from the q-axis standard voltage Vq_std. The calculation switching part selects one of ??1 and ??2 based on an operation state of the MG.Type: GrantFiled: January 22, 2019Date of Patent: January 14, 2020Assignee: DENSO CORPORATIONInventors: Takashi Ogawa, Masaki Nishiyama, Mitsuharu Matsuno
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Publication number: 20190229663Abstract: In a MG control device, a standard voltage calculation part calculates a d-axis standard voltage Vd_std and a q-axis standard voltage Vq_std to be supplied to a MG. A first magnetic flux change amount estimation value calculation part calculates a first magnetic flux change amount estimation value ??1 based on a deviation of a specific value from the q axis standard voltage Vq_std, where the specific value is obtained by multiplying a ratio (Vd_std/Vd_real) with a q-axis real voltage Vq_real, where Vd_real represents a d-axis real voltage. A second magnetic flux change amount estimation value calculation part calculates a second magnetic flux change amount estimation value ??2 based on a deviation of the q-axis real voltage Vq_real from the q-axis standard voltage Vq_std. The calculation switching part selects one of ??1 and ??2 based on an operation state of the MG.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Applicant: DENSO CORPORATIONInventors: Takashi OGAWA, Masaki NISHIYAMA, Mitsuharu MATSUNO
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Publication number: 20190229661Abstract: In a MG control device, a standard voltage calculation part calculates a d axis standard voltage and a q axis standard voltage in a standard state in which no demagnetization occurs in permanent magnets of a MG. A magnetic flux change amount estimation value calculation part calculates a basic magnetic flux change amount estimation value based on a deviation of a specific value from the q-axis standard voltage. This specific value is obtained by multiplying q axis real voltage with a ratio of the d axis standard voltage and the d axis real voltage. A magnetic flux change amount estimation value correction part adjusts a magnetic flux change amount estimation value by correcting the basic magnetic flux change amount estimation value relatively to a detection threshold value based on characteristic change of the MG in a demagnetization state of the permanent magnets of the MG.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Applicant: DENSO CORPORATIONInventors: Takashi OGAWA, Masaki NISHIYAMA, Mitsuharu MATSUNO
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Patent number: 9184670Abstract: A power conversion device comprises a main circuit section that has a semiconductor module with a switching element therein and including a main electrode terminal, a capacitor with a capacitor element therein and that includes a capacitor terminal, and a bus bar that connects the main electrode terminal and the capacitor terminal. The capacitor terminal extends from a capacitor main body including the capacitor element therein towards the main circuit section. The bus bar provides a bending section on a base end side of a connecting section between the bus bar and the capacitor terminal. The bus bar and the capacitor terminal are connected such as to overlap in a state in which respective tip directions match.Type: GrantFiled: October 18, 2013Date of Patent: November 10, 2015Assignee: DENSO CORPORATIONInventors: Mitsuharu Matsuno, Hiroshi Inamura, Akira Nakasaka
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Publication number: 20140118909Abstract: A power conversion device comprises a main circuit section that has a semiconductor module with a switching element therein and including a main electrode terminal, a capacitor with a capacitor element therein and that includes a capacitor terminal, and a bus bar that connects the main electrode terminal and the capacitor terminal. The capacitor terminal extends from a capacitor main body including the capacitor element therein towards the main circuit section. The bus bar provides a bending section on a base end side of a connecting section between the bus bar and the capacitor terminal. The bus bar and the capacitor terminal are connected such as to overlap in a state in which respective tip directions match.Type: ApplicationFiled: October 18, 2013Publication date: May 1, 2014Applicant: DENSO CORPORATIONInventors: Mitsuharu MATSUNO, Hiroshi INAMURA, Akira NAKASAKA