Patents by Inventor Hiroyuki Higuchi
Hiroyuki Higuchi 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: 7398424Abstract: A false path detection program whereby passing points of signal lines constituting false paths are directly detected, thereby shortening the processing time necessary for the false path detection and the processing time of tools utilizing false path information. A storing section stores, in a storage device, circuit information about a circuit designed by a designer. A signal value generating section generates an impossible signal value with respect to a signal line in the circuit. A signal propagation inspecting section assigns the signal value generated by the signal value generating section to an input of a gate connected to the signal line with respect to which the signal value has been generated, and examines whether signal is propagated through the other input of the gate only when accompanied by the signal value. If signal is propagated through the other input of the gate, a passing point acquiring section acquires a passing point of the other signal line connected to the other input of the gate.Type: GrantFiled: April 19, 2004Date of Patent: July 8, 2008Assignee: Fujitsu LimitedInventor: Hiroyuki Higuchi
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Publication number: 20080097072Abstract: The present invention provides an optical semiconductor sealing material comprising a radically polymerized polymer of a methacrylate ester having an alicyclic hydrocarbon group containing 7 or more carbon atoms e.g. an adamantyl group, a norbornyl group or a dicyclopentanyl group; and an optical semiconductor sealing material comprising a radically polymerized polymer of 50 to 97 mass % of the methacrylate ester and 3 to 50 mass % of acrylate ester having a hydroxyl group. The optical semiconductor sealing material of the present invention is highly transparent and stable to UV light and thus does not undergo yellowing. In addition, the material exhibits excellent compatibility between heat resistance and refractive index, does not undergo deformation or cracking during heating processes such as reflow soldering, and shows high processability.Type: ApplicationFiled: November 9, 2005Publication date: April 24, 2008Applicant: Idemitsu Kosan Co., Ltd.Inventors: Tomoaki Takebe, Tsuyoshi Ota, Yutaka Obata, Hiroyuki Higuchi
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Publication number: 20070283302Abstract: In an LSI analysis apparatus, a logic element pair extracting unit extracts an unselected logic element pair when an input unit receives circuit description input. A searching unit searches for an input pattern causing the extracted pair to perform concurrent transition. When an input pattern causing concurrent transition is found, the searching unit determines the extracted pair to be a pair capable of concurrent transition (concurrent transition pair), and holds the input pattern causing concurrent transition. When an input pattern causing concurrent transition is not found, the searching unit determines the extracted pair to be a non-concurrent transition pair. An input pattern operation ratio calculating unit calculates an input pattern operation ratio for each input pattern causing concurrent transition. A detecting unit detects an input pattern yielding the highest input pattern operation ratio. An output unit puts out the detected input pattern, non-concurrent transition pairs, etc.Type: ApplicationFiled: January 19, 2007Publication date: December 6, 2007Applicant: FUJITSU LIMITEDInventor: Hiroyuki Higuchi
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Patent number: 7299437Abstract: A selector selects an FF pair (FFs, FFe) in circuit information, a calculator calculates value-capturing condition data at FFe, a divider divides a path set that matches the value-capturing condition data from a set of paths between the FF pair (FFs, FFe), and a multi-cycle path detector determines whether all the paths in the path set are multi-cycle paths. When the path set is a multi-cycle path, it is added to a timing exception path list that is output by an output unit.Type: GrantFiled: February 24, 2005Date of Patent: November 20, 2007Assignee: Fujitsu LimitedInventor: Hiroyuki Higuchi
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Publication number: 20070220457Abstract: An apparatus for creating a simplified false-path description on a false path among paths in a target circuit extracts, from descriptions on the paths, a target path description on a target path. The apparatus judges whether the target path is a false path based on the target path description. The apparatus identifies, when it is judged that the target path is a false path, a sufficient set of elements from elements included in the target path. The settings for causing every element in the sufficient set to transmit a signal conflict. The apparatus creates the simplified false-path description on the false path by deleting, from the target path description, a description on elements that are not included in the sufficient set.Type: ApplicationFiled: September 14, 2006Publication date: September 20, 2007Inventor: Hiroyuki Higuchi
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Patent number: 7131087Abstract: An analysis of a circuit to be analyzed is made in correspondence with the name of each element which includes a cell configuring the circuit to be analyzed, and the meaning or the relationship of a signal to a terminal of each element, and a determination of whether or not a path from a starting point to an end point is a multi-cycle path is made by using a result of the analysis, thereby providing an analyzing method that can also cope with the use of a gated clock, and an increase in the scale of a circuit, has a short processing time, and can accurately detect a multi-cycle path.Type: GrantFiled: November 13, 2003Date of Patent: October 31, 2006Assignee: Fujitsu LimitedInventor: Hiroyuki Higuchi
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Publication number: 20060204574Abstract: The present invention provides sustained-release oral administration preparations containing the phenylalanine compound of the formula (1) wherein A represent the formula (2) and the like; B represents an alkoxy group and the like; E represents a hydrogen atom and the like; D represents a substituted phenyl group and the like; T, U, and V represent a carbonyl group and the like; Arm represents a benzene ring and the like; R1 represents an alkyl group and the like; R2, R3, and R4 may be the same or different from each other and represent a hydrogen atom, substituted amino group and the like; and J and J? represent a hydrogen atom and the like, or pharmaceutically acceptable salts thereof as an active ingredient in either form of a coating preparation or a matrix preparation. This active ingredient has a relatively shorter half-life in blood plasma, and the preparations having continuance of the effects are provided by the present invention.Type: ApplicationFiled: May 15, 2006Publication date: September 14, 2006Applicant: Ajinomoto Co., Inc.Inventors: Kenichi Ogawa, Hirokazu Hagio, Hiroyuki Higuchi, Motoki Ishikawa, Akira Yabuki
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Publication number: 20060204572Abstract: The present invention provides solid dispersions or solid dispersion pharmaceutical preparations containing a water-soluble polymeric substance(s) and a phenylalanine compound of the formula (1) or pharmaceutically acceptable salts thereof, wherein A represents the formula (2) and the like, B represent an alkoxy group and the like, E represents a hydrogen atom and the like, D represents a substituted phenyl group and the like, T, U and V represent a carbonyl group and the like, Arm represents a benzene ring and the like, R1 represents an alkyl group and the like, R2, R3, and R4 may be the same or different from one another and each represent a hydrogen atom, a substituted amino group and the like, and J and J? represent a hydrogen atom and the like; production methods thereof; and solubilized pharmaceutical preparations containing a solubilizer(s) and the compound (I) or pharmaceutically acceptable salts thereof.Type: ApplicationFiled: May 15, 2006Publication date: September 14, 2006Applicant: AJINOMOTO CO., INC.Inventors: Hiroyuki Higuchi, Hirokazu Hagio, Kenichi Ogawa, Akira Yabuki
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Publication number: 20060123274Abstract: A selector selects an FF pair (FFs, FFe) in circuit information, a calculator calculates value-capturing condition data at FFe, a divider divides a path set that matches the value-capturing condition data from a set of paths between the FF pair (FFs, FFe), and a multi-cycle path detector determines whether all the paths in the path set are multi-cycle paths. When the path set is a multi-cycle path, it is added to a timing exception path list that is output by an output unit.Type: ApplicationFiled: February 24, 2005Publication date: June 8, 2006Applicant: FUJITSU LIMITEDInventor: Hiroyuki Higuchi
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Publication number: 20060052578Abstract: A polyarylene sulfide resin which has an index of coupling reactivity at 320° C. of 2.0 or lower and an amount of SO2 generated therefrom at 300° C. of 0.02 mg/g or smaller; and a process for producing the polyarylene sulfide resin, which comprises polymerizing a polyfunctional halogenated aromatic compound with lithium sulfide in an aprotic organic solvent, and then washing the resultant polymer in a molten state. A composition comprising the polyarylene sulfide resin obtained by such process and an inorganic filler is reduced in unevenness of fluidity between lots and is reduced in sulfur odor emission during molding.Type: ApplicationFiled: November 27, 2003Publication date: March 9, 2006Inventors: Hiroyuki Higuchi, Minoru Senga, Yutaka Tsubokura
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Patent number: 6904887Abstract: An internal combustion engine providing a strong mounting attachment for an engine accessory component on a light weight element of the engine body that is provided with a reinforcement for another primary purpose.Type: GrantFiled: April 5, 2004Date of Patent: June 14, 2005Assignee: Kabushiki Kaisha YEDInventors: Shinji Higashide, Hiroyuki Higuchi, Azmi Osman
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Publication number: 20050120271Abstract: A false path detection program whereby passing points of signal lines constituting false paths are directly detected, thereby shortening the processing time necessary for the false path detection and the processing time of tools utilizing false path information. A storing section stores, in a storage device, circuit information about a circuit designed by a designer. A signal value generating section generates an impossible signal value with respect to a signal line in the circuit. A signal propagation inspecting section assigns the signal value generated by the signal value generating section to an input of a gate connected to the signal line with respect to which the signal value has been generated, and examines whether signal is propagated through the other input of the gate only when accompanied by the signal value. If signal is propagated through the other input of the gate, a passing point acquiring section acquires a passing point of the other signal line connected to the other input of the gate.Type: ApplicationFiled: April 19, 2004Publication date: June 2, 2005Inventor: Hiroyuki Higuchi
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Publication number: 20050033000Abstract: The ethylene base copolymer of the present invention having a density d falling in a range of 940 to 970 kg/m3, a polydispersion index PDI falling in a range of 25 to 50 and a long chain branch index LCBI falling in a range of 0.6 to 2.0 has a high impact strength and few fish eyes and is excellent in a high extruding characteristic, a high-speed moldability, a bubble stability and a tear strength in molding, and it can be produced via at least two steps of reaction by a slurry polymerization method using a Ziegler catalyst.Type: ApplicationFiled: August 19, 2002Publication date: February 10, 2005Inventors: Katsutoshi Ohta, Hiroyuki Higuchi, Shiniiro Fujikawa, Masayuki Shinohara
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Publication number: 20040236041Abstract: The present invention is directed to a polyethylene resin having a density of 940-970 kg/m3 and a long-term relaxation component index of 1.5-10. The polyethylene resin exhibits, among other properties, excellent extrudability and bubble stability during blow film extrusion, and well-balanced physical properties of a film; e.g., impact resistance, and in particular, low unevenness in thickness. The polyethylene resin can provide a blown film having few gels.Type: ApplicationFiled: January 5, 2004Publication date: November 25, 2004Inventors: Hiroyuki Higuchi, Katsutoshi Ohta, Masayuki Shinohara
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Publication number: 20040200452Abstract: An internal combustion engine providing a strong mounting attachment for an engine accessory component on a light weight element of the engine body that is provided with a reinforcement for another primary purpose.Type: ApplicationFiled: April 5, 2004Publication date: October 14, 2004Applicant: KABUSHIKI KAISHA Y.E.D.Inventors: Shinji Higashide, Hiroyuki Higuchi, Azmi Osman
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Patent number: 6758232Abstract: A steam conditioning system including a steam conditioning valve 1 for depressurizing and desuperheating steam S by supplying moisture W in the conditioning valve. A discharge pipe 3 connected to the steam conditioning valve 1 has a horizontal section 3a, and the horizontal arrangement section 3a is provided with a moisture drain 4 or at a portion near the bottom. Condensed moisture W1 is extracted from this moisture drain 4 and is recycled as moisture W to be supplied to the steam S in the conditioning valve 1. The steam conditioning valve 1 further has a reduced annular section 9 with a nozzle 5a disposed therein for injecting subcooled water mist W. A transport conduit 5 connects the drain 4 to nozzle 5a. Moisture W is drawn into steam flow S due to the Venturi effect caused by the pressure drop through the reduced annular section 9.Type: GrantFiled: January 4, 2002Date of Patent: July 6, 2004Assignee: Dresser, Inc.Inventor: Hiroyuki Higuchi
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Patent number: 6742773Abstract: A steam pressure reducing and conditioning valve for passing a superheated steam S inflowing from a first port 1 through a pressure reducing section 2, and, supplying subcooled water mist W and discharging desuperheated and depressurized steam S2 from a second port 3, wherein a first nozzle 4 for supplying mist W is provided in proximity to the pressure reducing section 2. The nozzle 4 injects subcooled water mist in a planar pattern r perpendicular to the flow of depressurized steam S1. Said first nozzle 4 is disposed such that there is a predetermined distance L between the jet pattern r of moisture W injected from the nozzle and the pressure reducing section 2.Type: GrantFiled: January 4, 2002Date of Patent: June 1, 2004Assignee: Dresser, Inc.Inventor: Hiroyuki Higuchi
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Publication number: 20040098685Abstract: An analysis of a circuit to be analyzed is made in correspondence with the name of each element which includes a cell configuring the circuit to be analyzed, and the meaning or the relationship of a signal to a terminal of each element, and a determination of whether or not a path from a starting point to an end point is a multi-cycle path is made by using a result of the analysis, thereby providing an analyzing method that can also cope with the use of a gated clock, and an increase in the scale of a circuit, has a short processing time, and can accurately detect a multi-cycle path.Type: ApplicationFiled: November 13, 2003Publication date: May 20, 2004Applicant: FUJITSU LIMITEDInventor: Hiroyuki Higuchi
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Patent number: 6715505Abstract: A steam pressure reducing and conditioning valve comprising a first port 21 for inflowing superheated steam S, a body 23 having a cylindrical diffuser with bottom 22 where small holes 22a are scattered on the side, and a second port 24 for discharging depressurized steam S1 by the diffuser and supplying moisture W from one or more nozzles 35 to the depressurized steam S1, wherein a protrusion 26 projects inward in a vapor discharge path 29 of the body 23 between the diffuser 22 and the moisture supply section 25, and it is so structured that the depressurized steam S1 exiting from the small hole 22a is concentrated into the body 23 by this protrusion 26, made to pass inside the protrusion 26, increasing the velocity of steam S1, and then desuperheated by supplying the steam S1 with subcooled water W.Type: GrantFiled: January 4, 2002Date of Patent: April 6, 2004Assignee: Dresser, Inc.Inventor: Hiroyuki Higuchi
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Publication number: 20020096052Abstract: A steam pressure reducing and conditioning valve for passing a superheated steam S inflowing from a first port 1 through a pressure reducing section 2, and, supplying subcooled water mist W and discharging desuperheated and depressurized steam S2 from a second port 3, wherein a first nozzle 4 for supplying mist W is provided in proximity to said pressure reducing section 2. Said nozzle 4 injects subcooled water mist in a planar pattern r perpendicular to the flow of depressurized steam S1. Said first nozzle 4 is disposed such that there is a predetermined distance L between the jet pattern r of moisture W injected from the nozzle and said pressure reducing section 2.Type: ApplicationFiled: January 4, 2002Publication date: July 25, 2002Inventor: Hiroyuki Higuchi