Patents by Inventor Satoru Fujita
Satoru Fujita 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: 20140204642Abstract: An inverter circuit 40 with reduced loss in semiconductor elements when starting up, having switching elements Q1 and Q2 in series, and connected to both ends of a direct current power source circuit 30 having direct current power sources Psp and Psn in series, and including an alternating current output terminal U connected to a connection point of the switching elements, an alternating current output terminal V connected to a connection point of the direct current power sources, a bidirectional switch element S1, connected between the alternating current output terminal U and a terminal R of an alternating current power source 1, and a bidirectional switch element S2, connected between the alternating current output terminal U and a terminal S of the alternating current power source, causing the bidirectional switch elements to turn on and off when starting up.Type: ApplicationFiled: May 23, 2012Publication date: July 24, 2014Applicant: FUJI ELECTRIC CO., LTD.Inventors: Seitaro Banno, Satoru Fujita
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Publication number: 20130294124Abstract: Aspects of the invention include a step-up/step-down chopper unit, an inverter unit, a rectifier unit, first to third voltage detection means, and a drive control unit. Voltage regulation means of the drive control unit, in accordance with a detected voltage value detected by the voltage detection means, generates control signals for keeping the effective voltage value of a capacitor constant. In some aspects of the invention, the effective voltage value of the capacitor is controlled to be constant by the switching elements of the step-up/step-down chopper unit and inverter unit being driven by the control signals. The rectifier unit can suppress a surge voltage by causing energy stored in a inductor to be absorbed by storage elements when bidirectional switching elements are turned off.Type: ApplicationFiled: July 11, 2013Publication date: November 7, 2013Inventor: Satoru FUJITA
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Publication number: 20130206371Abstract: As a cooling structure, a cooling device has a configuration that comprises a mounting surface for a member to be cooled, a cooling fin provided on a rear surface side of the mounting surface, and a cooling passage for cooling the cooling fin with a liquid refrigerant, wherein the liquid refrigerant is caused to flow from a flow inlet to the cooling passage and is discharged from a discharge outlet. The cooling passage comprises a first surface provided with the cooling fin, a second surface opposing the first surface, and a wall portion provided between the first surface and the second surface and is configured into a channel longer than a channel connecting the flow inlet and the discharge outlet in a straight line. The wall portion has a first wall portion extending from the second surface to the first surface, and a second wall portion extending in parallel with the first wall portion from the first surface to a height exceeding a top portion of the first wall.Type: ApplicationFiled: October 12, 2011Publication date: August 15, 2013Applicant: HONDA MOTOR CO., LTD.Inventor: Satoru Fujita
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Publication number: 20130162101Abstract: A dielectric sintered body of the present invention contains Ba, Nb, and at least one of Zn and Co, as main components, and K and Ta as subcomponents. The ratio A of the peak intensity p2 of the (111) plane peak to the peak intensity p1 of the (310) plane peak in an X-ray diffraction measurement is 0.9 to 1.5. The half bandwidth C of the (111) plane peak ranges from 0.12 to 0.22°. The d-value D of the (111) plane peak ranges from 2.363 to 2.371. The dielectric sintered body has a Perovskite structure.Type: ApplicationFiled: September 2, 2011Publication date: June 27, 2013Applicant: NGK SPARK PLUG CO., LTD.Inventors: Satoru Fujita, Yuki Kasuya
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Patent number: 8467212Abstract: A high power factor rectifier circuit, provided with switching sections connected to an AC power supply for converting an AC voltage to a DC voltage, is formed with a bypass circuit provided. The bypass circuit, when the voltage of the AC power supply becomes higher than the voltage across a smoothing capacitor provided on the DC output side, makes a charge current flowing from the AC power supply to the capacitor bypass the switching section by making the switching section out of conduction. Thus, a rectifier circuit is provided which can be safely operated without causing any damage, or with minimized damage, even though an inrush current flows at turning-on the power or at recovery from a power interruption.Type: GrantFiled: November 22, 2010Date of Patent: June 18, 2013Assignee: Fuji Electric Co., Ltd.Inventors: Kazuaki Mino, Satoru Fujita, Ryuji Yamada
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Patent number: 8255970Abstract: A personal information generation apparatus 1 encapsulates personal information together with a transmission policy to generate a personal information capsule which is transmitted to personal information utilization apparatus 2. Personal information utilization apparatus 2 receives and holds the personal information capsule for utilization. In this event, personal information generation apparatus 1 transmits a transmission policy defined by the personal information producer. Personal information utilization apparatus 2 in turn transmits a reception policy defined by a personal information user. Then, personal information generation apparatus 1 and personal information utilization apparatus 2 determine a contractual coverage in regard to personal information to be distributed, and generate contract information. Eventually, the personal information is distributed from personal information generation apparatus 1 to personal information utilization apparatus 2 based on the generated contract information.Type: GrantFiled: June 12, 2006Date of Patent: August 28, 2012Assignee: NEC CorporationInventors: Makoto Hatakeyama, Hidehito Gomi, Shigeru Hosono, Satoru Fujita
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Patent number: 8245034Abstract: The present invention is intended to allow distribution of personal information to be managed on the basis of not only a personal information management policy defined by a personal information producer but also management policies of all apparatuses which handle personal information when the distribution of personal information is managed between apparatuses. In its configuration, personal information generation apparatus 1 encapsulates personal information together with a transmission policy to generate a personal information capsule which is transmitted to personal information utilization apparatus 2. Personal information utilization apparatus 2 receives and holds the personal information capsule for utilization. In this event, personal information generation apparatus 1 transmits a transmission policy defined by the personal information producer. Personal information utilization apparatus 2 in turn transmits a reception policy defined by a personal information user.Type: GrantFiled: December 28, 2009Date of Patent: August 14, 2012Assignee: NEC CorporationInventors: Makoto Hatakeyama, Hidehito Gomi, Shigeru Hosono, Satoru Fujita
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Publication number: 20110122667Abstract: A high power factor rectifier circuit, provided with switching sections connected to an AC power supply for converting an AC voltage to a DC voltage, is formed with a bypass circuit provided. The bypass circuit, when the voltage of the AC power supply becomes higher than the voltage across a smoothing capacitor provided on the DC output side, makes a charge current flowing from the AC power supply to the capacitor bypass the switching section by making the switching section out of conduction. Thus, a rectifier circuit is provided which can be safely operated without causing any damage, or with minimized damage, even though an inrush current flows at turning-on the power or at recovery from a power interruption.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: FUJI ELECTRIC HOLDINGS CO., LTD.Inventors: Kazuaki MINO, Satoru FUJITA, Ryuji YAMADA
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Publication number: 20100100732Abstract: The present invention is intended to allow distribution of personal information to be managed on the basis of not only a personal information management policy defined by a personal information producer but also management policies of all apparatuses which handle personal information when the distribution of personal information is managed between apparatuses. In its configuration, personal information generation apparatus 1 encapsulates personal information together with a transmission policy to generate a personal information capsule which is transmitted to personal information utilization apparatus 2. Personal information utilization apparatus 2 receives and holds the personal information capsule for utilization. In this event, personal information generation apparatus 1 transmits a transmission policy defined by the personal information producer. Personal information utilization apparatus 2 in turn transmits a reception policy defined by a personal information user.Type: ApplicationFiled: December 28, 2009Publication date: April 22, 2010Applicant: NEC CORPORATIONInventors: Makoto HATAKEYAMA, Hidehito GOMI, Shigeru HOSONO, Satoru FUJITA
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Patent number: 7516396Abstract: A system, a method, and a program for structured document derivation for generating derived structured documents of different representations having the same contents, facilitating the test for a structured document processor, and avoiding the vulnerability of the structured document processing. A monitor monitors a call from a structured document processing generator to a structured document processor to have a test structured document. A structured document derivation system generates derived structured documents of the test structured document. The derived structured documents are sent to a testing device for testing the structured document processor. A test analyzer determines whether or not each derivative pattern can be accepted. When the processing of a structured document is requested, the test analyzer analyzes the document. When the structured document matches an unacceptable pattern, the document is replaced with an acceptable one.Type: GrantFiled: March 28, 2005Date of Patent: April 7, 2009Assignee: NEC CorporationInventor: Satoru Fujita
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Patent number: 7514384Abstract: The present invention relates to an active oxygen developing substance composed of an aluminosilicate obtained by heating hydrogarnet as a precursor substance at 700° C. or higher; an aluminosilicate catalyst supporting cobalt oxide, produced by supporting cobalt oxide on the surface of the aluminosilicate; a method for manufacturing these; and applications of these as oxidation catalysts, solid electrolytes, oxygen occlusion carriers, and so forth.Type: GrantFiled: August 20, 2003Date of Patent: April 7, 2009Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Kenzi Suzuki, Satoru Fujita
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Publication number: 20080180978Abstract: To provide a capacitor drop type power supply circuit that can withstand a surge-current generated at power-on by use of inexpensive elements without requiring a complicated circuit configuration. A capacitor drop type power supply circuit includes: an AC power supply (1) connected to a series circuit of a resistor (2), a first capacitor (3), and a first diode (4) whose cathode is connected to the first capacitor (3) ; a series circuit of a second diode (5) and a Zener diode (6), which is parallel-connected to the first diode (4); and a second capacitor (7) parallel-connected to the Zener diode (6), the circuit outputting a DC voltage generated across the second capacitor (7).Type: ApplicationFiled: November 21, 2007Publication date: July 31, 2008Applicant: Mitsubishi Electric CorporationInventors: Satoru Fujita, Yuuichi Itoi, Yoshio Yajima
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Patent number: 7346571Abstract: An automated bid decision system allowing a bidder to make a bidding for plural commodity items over a plurality of markets is disclosed. A data memory stores a logical formula representing a relationship among a plurality of bid items, a value table of the bid items, price information of the bid items in at least one market, a total purchasing fund, and a bidding strategy. A profit computation section computes a profit obtainable when at least one bid item arbitrary selected from the bid items is purchased, based on the value and the price information. A strategy computation section determines a list of bid items for which a bid should be made and a gross profit obtainable therefrom. A combination candidate is selected from the bid items based on the relationship formula and a possible profit obtainable from the selected combination candidate is computed. The final list of bid items are determined so as to maximize the possible profit within the total purchasing fund.Type: GrantFiled: October 20, 2000Date of Patent: March 18, 2008Assignee: NEC CorporationInventor: Satoru Fujita
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Patent number: 7231591Abstract: A computer system is composed of sending and receiving computers. The sending computer includes an encoder module encoding an internal representation of a structured document to generate an encoded document. The receiving computer includes a decoder module which receives the encoded document through a network, and decodes the encoded document to reproduce the internal representation. The encoder module lists texts and structures included within the structured document without duplication to thereby generate validation information, and incorporates the validation information into the encoded document. The decoder module includes a validation module which is responsive to the validation information to validate whether a data structure of the reproduced internal representation is in compliance with a predetermined document type declaration.Type: GrantFiled: March 31, 2004Date of Patent: June 12, 2007Assignee: NEC CorporationInventor: Satoru Fujita
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Publication number: 20060294024Abstract: The present invention is intended to allow distribution of personal information to be managed on the basis of not only a personal information management policy defined by a personal information producer but also management policies of all apparatuses which handle personal information when the distribution of personal information is managed between apparatuses. In its configuration, personal information generation apparatus 1 encapsulates personal information together with a transmission policy to generate a personal information capsule which is transmitted to personal information utilization apparatus 2. Personal information utilization apparatus 2 receives and holds the personal information capsule for utilization. In this event, personal information generation apparatus 1 transmits a transmission policy defined by the personal information producer. Personal information utilization apparatus 2 in turn transmits a reception policy defined by a personal information user.Type: ApplicationFiled: June 12, 2006Publication date: December 28, 2006Inventors: Makoto Hatakeyama, Hidehito Gomi, Shigeru Hosono, Satoru Fujita
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Patent number: 7029558Abstract: The purpose is to provide a cathode electrode for manufacturing an electrodeposited copper foil which is possible to be continuously and stably usable for a long duration of 3000 hours or longer to subsequently lessen the frequency of maintenance work execution as low as possible and to contribute to lower the running cost of the electrodeposited copper foil manufacture. As the means for achieving the purpose, a cathode electrode made of a titanium material is employed for obtaining an electrodeposited copper foil using an electrolytic copper solution and the titanium material having 7.0 or higher crystal grain size number and 35 ppm or lower initial hydrogen content is used for manufacturing the cathode electrode for manufacturing an electrodeposited copper foil. Further, also provided is a manufacturing method of the titanium material to be employed for the cathode electrode made of a titanium material.Type: GrantFiled: December 26, 2001Date of Patent: April 18, 2006Assignees: Mitsui Mining & Smelting Co., LTD, Nippon Stainless Steel Kozai Co., LTD, Sumitomo Metal Industries, LTDInventors: Sakiko Tomonaga, Satoru Fujita, Hiroshi Tanaka, Yutaka Kiminami, Isamu Kanekatsu, Atsuhiko Kuroda
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Publication number: 20060045834Abstract: The present invention relates to an active oxygen developing substance composed of an aluminosilicate obtained by heating hydrogarnet as a precursor substance at 700° C. or higher; an aluminosilicate catalyst supporting cobalt oxide, produced by supporting cobalt oxide on the surface of the aluminosilicate; a method for manufacturing these; and applications of these as oxidation catalysts, solid electrolytes, oxygen occlusion carriers, and so forth.Type: ApplicationFiled: August 20, 2003Publication date: March 2, 2006Applicant: National Inst. of Adv. Industrial Sci and TechInventors: Kenzi Suzuki, Satoru Fujita
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Publication number: 20050216493Abstract: A system, a method, and a program for structured document derivation for generating derived structured documents of different representations having the same contents, facilitating the test for a structured document processor, and avoiding the vulnerability of the structured document processing. A monitor monitors a call from a structured document processing generator to a structured document processor to have a test structured document. A structured document derivation system generates derived structured documents of the test structured document. The derived structured documents are sent to a testing device for testing the structured document processor. A test analyzer determines whether or not each derivative pattern can be accepted. When the processing of a structured document is requested, the test analyzer analyzes the document. When the structured document matches an unacceptable pattern, the document is replaced with an acceptable one.Type: ApplicationFiled: March 28, 2005Publication date: September 29, 2005Inventor: Satoru Fujita
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Patent number: 6886024Abstract: A system in which execution of plural applications distributed over plural computers is controlled using a simplified script language to realize coordination among plural applications to enable facilitated construction of upper-order distributed applications. Each computer includes, on an agent platform 2, an agent base 9 capable of having a shell agent 10, a local service agent 11 and an application agent 12, an agent movement unit 13, thread generating unit 14, remote control unit 15 and agent generating unit 16. A script language input through an input unit 7 is interpreted by the shell agent 10 to boot the application agent 12. The application agent supervises an actual application 18. The shell agent and the application agent can be moved to another computer using the agent movement unit 13 and can have communication with an agent in the other computer with the aid of the remote control unit 15.Type: GrantFiled: October 25, 2000Date of Patent: April 26, 2005Assignee: NEC CorporationInventors: Satoru Fujita, Kazuya Koyama
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Publication number: 20040268239Abstract: A computer system is composed of sending and receiving computers. The sending computer includes an encoder module encoding an internal representation of a structured document to generate an encoded document. The receiving computer includes a decoder module which receives the encoded document through a network, and decodes the encoded document to reproduce the internal representation. The encoder module lists texts and structures included within the structured document without duplication to thereby generate validation information, and incorporates the validation information into the encoded document. The decoder module includes a validation module which is responsive to the validation information to validate whether a data structure of the reproduced internal representation is in compliance with a predetermined document type declaration.Type: ApplicationFiled: March 31, 2004Publication date: December 30, 2004Applicant: NEC CorporationInventor: Satoru Fujita