Patents by Inventor Kozo Matsushita
Kozo Matsushita 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: 9570256Abstract: A gas circuit breaker includes a hermetically-sealed container filled with an arc extinguishing gas, a fixed contact arranged within the container, a movable contact arranged to face the fixed contact and configured to move in an axial direction of the container, the movable contact capable of contacting or separating from the fixed contact, an insulating operation rod having one end connected to an end of the movable contact opposite to the fixed contact through a link at an angle of about 90 degrees with respect to the movable contact, and an actuator arranged in a substantially coaxial relationship with the insulating operation rod, the actuator including an output shaft transferring a driving force for the operation of the movable contact to the other end of the insulating operation rod.Type: GrantFiled: June 17, 2014Date of Patent: February 14, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Kosuke Yanagi, Kozo Matsushita, Atsushi Nakagawa
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Publication number: 20150027985Abstract: A gas circuit breaker includes a hermetically-sealed container filled with an arc extinguishing gas, a fixed contact arranged within the container, a movable contact arranged to face the fixed contact and configured to move in an axial direction of the container, the movable contact capable of contacting or separating from the fixed contact, an insulating operation rod having one end connected to an end of the movable contact opposite to the fixed contact through a link at an angle of about 90 degrees with respect to the movable contact, and an actuator arranged in a substantially coaxial relationship with the insulating operation rod, the actuator including an output shaft transferring a driving force for the operation of the movable contact to the other end of the insulating operation rod.Type: ApplicationFiled: June 17, 2014Publication date: January 29, 2015Inventors: Kosuke Yanagi, Kozo Matsushita, Atsushi Nakagawa
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Patent number: 8199445Abstract: A gas insulated circuit breaker system has: a container that encapsulates insulating gas; a main contact in the container that opens/closes the main circuit; a resistor contact in the container, connected in parallel to the main contact, to be opened after elapse of a predetermined time after the main contact is opened and to be closed at a predetermined time before the main contact is closed; a resistor in the container, serially connected to the resistor contact and connected in parallel to the main contact together with the resistor contact; a temperature sensor that measures temperature of surrounding of the resistor; and a temperature estimation section that estimates a temperature of the resistor based on a timing of opening/closing operation of the main contact, a current flowing through the main circuit and the measured temperature.Type: GrantFiled: October 16, 2009Date of Patent: June 12, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Shiro Maruyama, Takashi Nakajima, Hiroyuki Hayata, Kazuhide Bannai, Kozo Matsushita, Hideo Ishizuka
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Publication number: 20100102036Abstract: A gas insulated circuit breaker system has: a container that encapsulates insulating gas; a main contact in the container that opens/closes the main circuit; a resistor contact in the container, connected in parallel to the main contact, to be opened after elapse of a predetermined time after the main contact is opened and to be closed at a predetermined time before the main contact is closed; a resistor in the container, serially connected to the resistor contact and connected in parallel to the main contact together with the resistor contact; a temperature sensor that measures temperature of surrounding of the resistor; and a temperature estimation section that estimates a temperature of the resistor based on a timing of opening/closing operation of the main contact, a current flowing through the main circuit and the measured temperature.Type: ApplicationFiled: October 16, 2009Publication date: April 29, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shiro MARUYAMA, Takashi Nakajima, Hiroyuki Hayata, Kazuhide Bannai, Kozo Matsushita, Hideo Ishizuka
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Publication number: 20100036891Abstract: An apparatus for collecting logging information in relation to a log function inserted into a program, the apparatus includes: a control table retaining control information in relation to specification information to specify the log function; an obtaining section obtaining the specification information embedded in the log function when the log function is executed; a judging section judging, on the basis of the control information in the control table and the specification information obtained by the obtaining section, whether or not the logging information associated with the specification information is to be collected; and a storage controller storing, if the result of the judging by the judging section is positive, the logging information into a memory, the specification information including position information of the log function in the program.Type: ApplicationFiled: June 5, 2009Publication date: February 11, 2010Applicant: FUJITSU LIMITEDInventor: Kozo MATSUSHITA
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Publication number: 20080184365Abstract: An information processing method includes an input process of accepting information processing data as a subject of information processing in the case where prohibition of access from an arbitrary processing unit to plural execution memories that are set in a shared memory so as to correspond to kinds of exclusive controls which restrict access to the shared memory is set. A determining step determines, according to the information processing data accepted by the input step, and a kind of exclusive control for a processing unit that is selected by an OS. A permission setting step sets permission of access from the processing unit to an execution memory corresponding to the kind of exclusive control determined by the determining step, using a control function for setting permission or prohibition of access to the execution memory corresponding to the determined kind of exclusive control.Type: ApplicationFiled: January 25, 2008Publication date: July 31, 2008Applicant: FUJITSU LIMITEDInventor: Kozo Matsushita
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Patent number: 6693250Abstract: A hybrid gas insulation switchgear apparatus comprises an enclosure in which an insulating gas is sealed, a bushing unit provided for the enclosure, a breaker unit disposed inside the enclosure, a disconnector unit disposed inside the enclosure and including disconnectors to be connected electrically in series to both sides of the breaker unit, an earth switch unit disposed inside the enclosure and including earth switches disposed between the breaker unit and the disconnectors, respectively, the earth switches being provided with main pole side electrodes disposed on the side of the breaker unit, and a current transformer unit mounted to the enclosure. The bushing unit including bushings each having a conductor connected to an electrode in the disconnector on a side opposite to the breaker.Type: GrantFiled: December 9, 2002Date of Patent: February 17, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Kozo Matsushita, Katsumi Suzuki, Hiroshi Furuta, Kenji Arai, Osamu Nakano, Kazutoshi Ogata
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Publication number: 20030062340Abstract: A hybrid gas insulation switchgear apparatus comprises an enclosure in which an insulating gas is sealed, a bushing unit provided for the enclosure, a breaker unit disposed inside the enclosure, a disconnector unit disposed inside the enclosure and including disconnectors to be connected electrically in series to both sides of the breaker unit, an earth switch unit disposed inside the enclosure and including earth switches disposed between the breaker unit and the disconnectors, respectively, the earth switches being provided with main pole side electrodes disposed on the side of the breaker unit, and a current transformer unit mounted to the enclosure. The bushing unit including bushings each having a conductor connected to an electrode in the disconnector on a side opposite to the breaker.Type: ApplicationFiled: December 9, 2002Publication date: April 3, 2003Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kozo Matsushita, Katsumi Suzuki, Hiroshi Furuta, Kenji Arai, Osamu Nakano, Kazutoshi Ogata
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Patent number: 6538224Abstract: In a hybrid type gas insulation switch gear apparatus, a main enclosure including a first cylindrical section have a base and a second cylindrical section branched from the base. A bushing is mounted on the cylindrical section and including a hollow insulating housing having a housing space and a central conductor extended in the hollow insulating housing. A first insulating spacer is provided in the first cylindrical section and configured to separate the first hollow space into first and second segment spaces. An insulating enclosure is also mounted to the second cylindrical section and including an enclosure space. A second insulating spacer is provided between the insulating enclosure and the second cylindrical section and configured to separate the enclosure space from the second hollow space. A disconnecting switch is formed in the first segment space of the first cylindrical section and a circuit breaker is also formed in the insulating enclosure.Type: GrantFiled: August 1, 2001Date of Patent: March 25, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Furuta, Kozo Matsushita, Hiroshi Murase
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Patent number: 6521855Abstract: A hybrid gas insulation switchgear apparatus comprises an enclosure in which an insulating gas is sealed, a bushing unit provided for the enclosure, a breaker unit disposed inside the enclosure, a disconnector unit disposed inside the enclosure and including disconnectors to be connected electrically in series to both sides of the breaker unit, an earth switch unit disposed inside the enclosure and including earth switches disposed between the breaker unit and the disconnectors, respectively, the earth switches being provided with main pole side electrodes disposed on the side of the breaker unit, and a current transformer unit mounted to the enclosure. The bushing unit including bushings each having a conductor connected to an electrode in the disconnector on a side opposite to the breaker.Type: GrantFiled: August 2, 2001Date of Patent: February 18, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Kozo Matsushita, Katsumi Suzuki, Hiroshi Furuta, Kenji Arai, Osamu Nakano, Kazutoshi Ogata
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Patent number: 6459568Abstract: In a hybrid type gas insulation switch gear apparatus, an enclosure includes a cylindrical branched portion branched from a cylindrical body so as to be inclined obliquely upward. An insulating gas is sealed therein. Insulating enclosures are mounted to the enclosure and the cylindrical branched portion, a disconnecting switch is arranged within the enclosure and electrically connected to the bushing. A circuit breaker is arranged within the insulating enclosure and electrically connected in series to the disconnecting switch. A current transformer is arranged on the cylindrical branched portion. A connecting conductor is arranged in between the circuit breaker and the disconnecting switch and an earth switch mounted to the enclosure, and an insulating member for supporting a primary electrode and the bushing conductor on the enclosure.Type: GrantFiled: July 30, 2001Date of Patent: October 1, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kozo Matsushita, Shinsuke Uchino, Masaru Nozawa, Akihiro Yoshimi, Atsushi Abumiya, Kazutoshi Ogata, Yoshinori Nagafuchi, Toshiyuki Sugawara
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Publication number: 20020056704Abstract: In a hybrid type gas insulation switch gear apparatus, a main enclosure including a first cylindrical section have a base and a second cylindrical section branched from the base. A bushing is mounted on the cylindrical section and including a hollow insulating housing having a housing space and a central conductor extended in the hollow insulating housing. A first insulating spacer is provided in the first cylindrical section and configured to separate the first hollow space into first and second segment spaces. An insulating enclosure is also mounted to the second cylindrical section and including an enclosure space. A second insulating spacer is provided between the insulating enclosure and the second cylindrical section and configured to separate the enclosure space from the second hollow space. A disconnecting switch is formed in the first segment space of the first cylindrical section and a circuit breaker is also formed in the insulating enclosure.Type: ApplicationFiled: August 1, 2001Publication date: May 16, 2002Inventors: Hiroshi Furuta, Kozo Matsushita, Hiroshi Murase
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Publication number: 20020023897Abstract: A hybrid gas insulation switchgear apparatus comprises an enclosure in which an insulating gas is sealed, a bushing unit provided for the enclosure, a breaker unit disposed inside the enclosure, a disconnector unit disposed inside the enclosure and including disconnectors to be connected electrically in series to both sides of the breaker unit, an earth switch unit disposed inside the enclosure and including earth switches disposed between the breaker unit and the disconnectors, respectively, the earth switches being provided with main pole side electrodes disposed on the side of the breaker unit, and a current transformer unit mounted to the enclosure. The bushing unit including bushings each having a conductor connected to an electrode in the disconnector on a side opposite to the breaker.Type: ApplicationFiled: August 2, 2001Publication date: February 28, 2002Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kozo Matsushita, Katsumi Suzuki, Hiroshi Furuta, Kenji Arai, Osamu Nakano, Kazutoshi Ogata
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Publication number: 20020012225Abstract: In a hybrid type gas insulation switch gear apparatus, an enclosure includes a cylindrical branched portion branched from a cylindrical body so as to be inclined obliquely upward. An insulating gas is sealed therein. Insulating enclosures are mounted to the enclosure and the cylindrical branched portion, a disconnecting switch is arranged within the enclosure and electrically connected to the bushing. A circuit breaker is arranged within the insulating enclosure and electrically connected in series to the disconnecting switch. A current transformer is arranged on the cylindrical branched portion. A connecting conductor is arranged in between the circuit breaker and the disconnecting switch and an earth switch mounted to the enclosure, and an insulating member for supporting a primary electrode and the bushing conductor on the enclosure.Type: ApplicationFiled: July 30, 2001Publication date: January 31, 2002Inventors: Kozo Matsushita, Shinsuke Uchino, Masaru Nozawa, Akihiro Yoshimi, Atsushi Abumiya, Kazutoshi Ogata, Yoshinori Nagafuchi, Toshiyuki Sugawara