Patents by Inventor Fujio Nomura
Fujio Nomura 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).
-
Publication number: 20190316822Abstract: A refrigeration cycle apparatus includes: an electric compressor that compresses and discharges refrigerant; a heating heat exchanger that heats a fluid by high pressure refrigerant discharged from the electric compressor as a heat source; a decompressor that decompresses the refrigerant flowing from the heating heat exchanger; an evaporator that evaporates the refrigerant decompressed by the decompressor; and a rotational speed controller that controls a rotational speed of the electric compressor. The rotational speed controller is configured to reduce an upper limit value of the rotational speed of the electric compressor in accordance with an increase in a pressure ratio of a high-pressure side refrigerant pressure of refrigerant within a range from a discharge port of the compressor to an inlet side of the decompressor to a low-pressure side refrigerant pressure of refrigerant within a range from an outlet side of the decompressor to a suction port of the compressor.Type: ApplicationFiled: May 31, 2019Publication date: October 17, 2019Inventors: Kazuhiro TADA, Kenichi MARUYAMA, Fujio NOMURA
-
Patent number: 10109841Abstract: According to one embodiment, in a storage cell system, cell lines each formed by connecting a prescribed number of storage cells in series are connected in parallel to form a storage cell module. Each unit is formed by connecting a prescribed number of storage cell modules in parallel. Outputs of a number of units corresponding to load capacity are linked in parallel and supplied to a load. At this time, current is limited to an extent that the storage cells are not damaged by interposing a current-limiting resistor in an output line of the storage cell module.Type: GrantFiled: December 12, 2017Date of Patent: October 23, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hiroyuki Kobayashi, Fujio Nomura, Kaoru Koiwa, Takeshi Yasuda, Tomomi Kageyama
-
Publication number: 20180102529Abstract: According to one embodiment, in a storage cell system, cell lines each formed by connecting a prescribed number of storage cells in series are connected in parallel to form a storage cell module. Each unit is formed by connecting a prescribed number of storage cell modules in parallel. Outputs of a number of units corresponding to load capacity are linked in parallel and supplied to a load. At this time, current is limited to an extent that the storage cells are not damaged by interposing a current-limiting resistor in an output line of the storage cell module.Type: ApplicationFiled: December 12, 2017Publication date: April 12, 2018Applicant: Kabushiki Kaisha ToshibaInventors: Hiroyuki KOBAYASHI, Fujio Nomura, Kaoru Koiwa, Takeshi Yasuda, Tomomi Kageyama
-
Patent number: 9539963Abstract: In a battery system for use in a vehicle as power supply, a plurality of battery groups, each configured to output a rated voltage while being charged, in parallel to an input/output system line by a system connection device, BMU devices monitor the battery groups, respectively, determining whether the battery groups enter an abnormal state, and any battery group entering the abnormal state is designated and disconnected from the input/output system line. If a predetermined of battery groups are found to enter an abnormal state, as determined by the BMU devices, a system controller generates an alarm, informing the user that the battery system may not provide power in the required amount.Type: GrantFiled: January 17, 2013Date of Patent: January 10, 2017Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tomomi Kageyama, Hiroyuki Kobayashi, Fujio Nomura
-
Publication number: 20130249278Abstract: In a battery system for use in a vehicle as power supply, a plurality of battery groups, each configured to output a rated voltage while being charged, in parallel to an input/output system line by a system connection device, BMU devices monitor the battery groups, respectively, determining whether the battery groups enter an abnormal state, and any battery group entering the abnormal state is designated and disconnected from the input/output system line. If a predetermined of battery groups are found to enter an abnormal state, as determined by the BMU devices, a system controller generates an alarm, informing the user that the battery system may not provide power in the required amount.Type: ApplicationFiled: January 17, 2013Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomomi KAGEYAMA, Hiroyuki Kobayashi, Fujio Nomura
-
Patent number: 7706153Abstract: A DC-DC converter includes a switching circuit having first and second switching elements to which a direct current voltage is supplied, the first and second switching elements periodically operated so that one of the switching elements is turned on while the other one is turned OFF during a period other than a dead time period, a serial circuit in which a first capacitor, and primary windings of first and second inductance elements are connected in series, and a connection is made between an output point of the switching circuit and a reference potential point (or input voltage point), and output circuits including rectifier elements, each of which rectifies a voltage induced by secondary windings of the first and second inductance elements, the output circuits obtaining a direct current output voltage.Type: GrantFiled: March 2, 2006Date of Patent: April 27, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Fujio Nomura, Yoshirou Aoki, Masayasu Doi
-
Patent number: 7352600Abstract: There is no period of time when any of switching elements and switching elements is turned on in a certain switching frequency, any one switching element is turned on in a period of time except for a dead time period for the zero voltage switching, the switching elements and the switching elements are turned on and off while shifting the phases by 180 degrees, and switching elements are turned on during a period of time when the currents in a positive direction and an inverse direction are flowing to the output, respectively, to be operated in a discontinuous current mode.Type: GrantFiled: December 9, 2005Date of Patent: April 1, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Fujio Nomura, Hiroshi Iwanaga, Masayasu Doi
-
Publication number: 20070053210Abstract: A DC-DC converter comprises a switching circuit having first and second switching elements to which a direct current voltage is supplied, the first and second switching elements making a periodic operation so that one of the switching elements is turned on while the other one is turned OFF during a period other than a dead time period, a serial circuit in which a first capacitor, and primary windings of first and second inductance elements are connected in series, and a connection is made between an output point of the switching circuit and a reference potential point (or input voltage point), and output circuits including rectifier elements, each of which rectifies a voltage induced by secondary windings of the first and second inductance elements, the output circuits obtaining a direct current output voltage.Type: ApplicationFiled: March 2, 2006Publication date: March 8, 2007Inventors: Fujio Nomura, Yoshirou Aoki, Masayasu Doi
-
Publication number: 20060133119Abstract: There is no period of time when any of switching elements and switching elements is turned on in a certain switching frequency, any one switching element is turned on in a period of time except for a dead time period for the zero voltage switching, the switching elements and the switching elements are turned on and off while shifting the phases by 180 degrees, and switching elements are turned on during a period of time when the currents in a positive direction and an inverse direction are flowing to the output, respectively, to be operated in a discontinuous current mode.Type: ApplicationFiled: December 9, 2005Publication date: June 22, 2006Inventors: Fujio Nomura, Hiroshi Iwanaga, Masayasu Doi
-
Patent number: 3937669Abstract: Vapor phase methylation of phenols with methanol in contact with a vanadium oxide catalyst which may additionally contain iron oxide and at least one other oxide of magnesium, titanium, manganese, beryllium or boron.Type: GrantFiled: June 10, 1974Date of Patent: February 10, 1976Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hitoshi Nakajima, Fujio Nomura, Shinichi Izawa