Patents by Inventor Tooru Inoue
Tooru Inoue 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: 20230160416Abstract: An opening/closing device of an embodiment has first to third movable contacts, first to third transmission mechanisms, first to third containers, a crankshaft, an operating mechanism, and a shock absorbing mechanism. The first to third movable contacts are accommodated in the first to third containers. The first to third transmission mechanisms are connected to the first to third movable contacts. The first to third containers accommodate at least the first movable contact. The crankshaft operates the first to third transmission mechanisms and changes the first to third movable contacts from a closed state to an open state. The operating mechanism is disposed on the side of the first transmission mechanism to rotate the crankshaft. The shock absorbing mechanism is disposed on the side of the third transmission mechanism to absorb a shock of rotational movement of the crankshaft.Type: ApplicationFiled: January 3, 2023Publication date: May 25, 2023Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Satoi OGAWA, Satoshi MARUSHIMA, Yoshiaki OHDA, Tooru INOUE, Tomohiro HASEGAWA, Norimitsu KATO
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Publication number: 20220166198Abstract: A gas insulation apparatus has a sealed container, an insulation gas, a high-voltage portion, and a removal material. The insulation gas has CO2 and O2 filling the sealed container as main components. The high-voltage portion is stored in the sealed container. The removal material reduces concentrations of HF, CO, and O3 in the insulation gas.Type: ApplicationFiled: February 8, 2022Publication date: May 26, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions CorporationInventors: Tomohiro HASEGAWA, Tooru INOUE, Norimitsu KATO, Amane MAJIMA, Toshiyuki UCHII
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Patent number: 11222760Abstract: A gas circuit breaker of an embodiment includes a sealed container, a first contact part and a second contact part, an operation mechanism, an insulating nozzle, a pressure accumulator, and an electric field shield. The insulating nozzle is displaced in conjunction with the first contact part in a separation process of the first contact part and the second contact part. The insulating nozzle surrounds arc discharge generated between the first contact part and the second contact part. The electric field shield is attached to the insulating nozzle. The electric field shield has a floating potential during a period of at least part of the separation process. The electric field shield is electrically connected to the second contact part such that the electric field shield has the same potential in a completely open electrode state in which separation between the first contact part and the second contact part is terminated.Type: GrantFiled: July 29, 2020Date of Patent: January 11, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Amane Majima, Tooru Inoue, Toshiyuki Uchii, Norimitsu Kato, Akira Shimamura, Takanori Yasuoka, Tsutomu Tanaka, Tadashi Mori
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Publication number: 20200357586Abstract: A gas circuit breaker of an embodiment includes a sealed container, a first contact part and a second contact part, an operation mechanism, an insulating nozzle, a pressure accumulator, and an electric field shield. The insulating nozzle is displaced in conjunction with the first contact part in a separation process of the first contact part and the second contact part. The insulating nozzle surrounds arc discharge generated between the first contact part and the second contact part. The electric field shield is attached to the insulating nozzle. The electric field shield has a floating potential during a period of at least part of the separation process. The electric field shield is electrically connected to the second contact part such that the electric field shield has the same potential in a completely open electrode state in which separation between the first contact part and the second contact part is terminated.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Amane MAJIMA, Tooru INOUE, Toshiyuki UCHII, Norimitsu KATO, Akira SHIMAMURA, Takanori YASUOKA, Tsutomu TANAKA, Tadashi MORI
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Patent number: 9570891Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: August 15, 2014Date of Patent: February 14, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Patent number: 9178339Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: August 15, 2014Date of Patent: November 3, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Patent number: 9142941Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: August 15, 2014Date of Patent: September 22, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Patent number: 9136675Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: August 15, 2014Date of Patent: September 15, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Patent number: 9070519Abstract: The circuit opening operation section of an embodiment of switchgear operation mechanism comprises: a circuit opening electromagnetic solenoid having a fitting structure that is provided with a step; and a solenoid spacer for adjusting the distance between a circuit opening trigger mechanism and the circuit opening electromagnetic solenoid. The circuit opening solenoid has: a solenoid housing fixed in position by way of the solenoid spacer; a plunger; and a stopper fitted to the solenoid housing so as to limit the sliding motion of the plunger in the plunger returning direction when the coil is not supplied with electric power. The limiting position of the stopper is adjustable.Type: GrantFiled: November 4, 2013Date of Patent: June 30, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue, Yoshikata Kobayashi
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Publication number: 20140353890Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353888Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353889Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353086Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Patent number: 8844913Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: October 7, 2010Date of Patent: September 30, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Publication number: 20140054148Abstract: The circuit opening operation section of an embodiment of switchgear operation mechanism comprises: a circuit opening electromagnetic solenoid having a fitting structure that is provided with a step; and a solenoid spacer for adjusting the distance between a circuit opening trigger mechanism and the circuit opening electromagnetic solenoid. The circuit opening solenoid has: a solenoid housing fixed in position by way of the solenoid spacer; a plunger; and a stopper fitted to the solenoid housing so as to limit the sliding motion of the plunger in the plunger returning direction when the coil is not supplied with electric power. The limiting position of the stopper is adjustable.Type: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Satoshi MARUSHIMA, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue, Yoshikata Kobayashi
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Patent number: 8395067Abstract: According to an embodiment, a switchgear operating mechanism has a roller pin rotatably fixed to a leading end of a latch lever. A latch is fixed to a solenoid lever at a position different from the rotation axis of the solenoid lever, and has a leading end engageable with the roller pin. In a state where the switchgear operating state is shifted from the closed state to the cutoff state, the solenoid lever is pushed by an electromagnetic solenoid for cutoff so as to be rotated in an opposite direction to the biasing direction of the solenoid lever return spring, and the latch lever is rotated by a biasing force of the roller pin to release an engagement between the roller pin and the leading end of the latch, which causes a cutoff spring to discharge its energy to rotate the latch lever.Type: GrantFiled: August 25, 2010Date of Patent: March 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue
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Publication number: 20120242018Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: October 7, 2010Publication date: September 27, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Publication number: 20110073446Abstract: According to an embodiment, a switchgear operating mechanism has a roller pin rotatably fixed to a leading end of a latch lever. A latch is fixed to a solenoid lever at a position different from the rotation axis of the solenoid lever, and has a leading end engageable with the roller pin. In a state where the switchgear operating state is shifted from the closed state to the cutoff state, the solenoid lever is pushed by an electromagnetic solenoid for cutoff so as to be rotated in an opposite direction to the biasing direction of the solenoid lever return spring, and the latch lever is rotated by a biasing force of the roller pin to release an engagement between the roller pin and the leading end of the latch, which causes a cutoff spring to discharge its energy to rotate the latch lever.Type: ApplicationFiled: August 25, 2010Publication date: March 31, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Satoshi MARUSHIMA, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue
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Patent number: 7323213Abstract: An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a voltage between the workpiece and the electrode, and a pulse current generator for generating and outputting a pulse current from the first voltage, and for cutting off the output when a predetermined period of time has passed after the voltage is detected to be less than a detection voltage. The pulse current is supplied between the workpiece and the electrode, and the detection voltage is less than the first voltage by 5% to 20% of the first voltage.Type: GrantFiled: May 8, 2006Date of Patent: January 29, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tooru Inoue, Akihiro Goto
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Publication number: 20060204669Abstract: An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a voltage between the workpiece and the electrode, and a pulse current generator for generating and outputting a pulse current from the first voltage, and for cutting off the output when a predetermined period of time has passed after the voltage is detected to be less than a detection voltage. The pulse current is supplied between the workpiece and the electrode, and the detection voltage is less than the first voltage by 5% to 20% of the first voltage.Type: ApplicationFiled: May 8, 2006Publication date: September 14, 2006Inventors: Tooru Inoue, Akihiro Goto