Patents by Inventor Yuji Kaneko
Yuji Kaneko 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: 20130335180Abstract: A process for producing a rare earth magnet comprises: an adhesion step of causing a diffusion element capable of diffusing inwardly to adhere to the surface part of a magnet material comprising a compact or sintered body of rare earth alloy particles; and an evaporation step of heating the magnet material in vacuum to evaporate at least a portion of the diffusion element having been retained on or in the surface part of the magnet material.Type: ApplicationFiled: March 8, 2012Publication date: December 19, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yuji Kaneko, Yukio Takada, Motoki Hiraoka, Keiu Kanada
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Publication number: 20130315775Abstract: A rare earth magnet production method of the present invention includes a placing step of placing a magnet material including a compact or a sintered body of powder particles having a rare earth magnet alloy, and a diffusing material containing a diffusing element to improve coercivity, in a vicinity of each other; and a diffusing step of diffusing the diffusing element into an inside of the magnet material by exposing the magnet material heated to vapor of the diffusing element evaporated from the diffusing material heated; and wherein the diffusing step is a step of heating the diffusing material independently of the magnet material to diffusing material temperature which is different from heating temperature of the magnet material called magnet material temperature.Type: ApplicationFiled: February 13, 2012Publication date: November 28, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yuji Kaneko, Hisaaki Takao, Yukio Takada, Motoki Hiraoka, Keiu Kanada
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Patent number: 8510506Abstract: The invention proposes a disk array device that can improve response performance while maintaining data consistency even in the case a write request is received from a host device by a controller that does not have master authority. The disk array device includes a master controller and a slave controller. Upon adding identifying information indicating that write data has been stored in a buffer memory to the write request, the slave controller transmits, to the master controller, the write request to which the identifying information has been added as well as the write data. After having stored the write data, the master controller transmits the write request to which the identifying information has been added to the slave controller. Upon receiving the write request, the slave controller alters the attributes of the buffer memory where the write data has been stored, from the buffer memory to the cache memory.Type: GrantFiled: March 10, 2011Date of Patent: August 13, 2013Assignee: NEC CorporationInventor: Yuji Kaneko
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Patent number: 8376158Abstract: There is provided a heavy construction installation method which does not need a secondarily transport in a construction field even if an installation position of a heavy construction is apart from a berthing position of a transport ship. A movable area where a ground plane is reinforced so that a heavy hoisting machine for installing a heavy construction in a building is movable is constructed so as to include a circle drawn around an installation position in the building with a maximum operating radius of the heavy hoisting machine relative to a weight of the heavy construction being as a radius, and a circle drawn around a loaded position of the heavy construction at a transport ship coming alongside a landing place with the maximum operating radius being as a radius.Type: GrantFiled: February 17, 2010Date of Patent: February 19, 2013Assignee: Hitachi Plant Technologies, Ltd.Inventors: Yuji Kaneko, Ryohel Miyahara, Sumito Maezawa, Kensuke Morita, Takashi Okano
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Patent number: 8301603Abstract: Disclosed is a system in which an index registration unit registers an index, which will be used for search processing, as a partitioned index which is partitioned on a time series basis, and a search means reads indexes older than a specified point in time, which is used as a search base point, to perform search processing, thereby searching for information based on a point in time in the past.Type: GrantFiled: October 2, 2007Date of Patent: October 30, 2012Assignee: NEC CorporationInventors: Masaki Kan, Yoshihiro Kajiki, Satoshi Yamakawa, Takashi Torii, Yuji Kaneko
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Publication number: 20120224999Abstract: A small-sized reactor having practical utility in light of a bonding force, ease in observation, exemption from impurities and high resistance against pressure, is provided. In bonding a plural number of inorganic transparent substrates (11) to (13) to form a small-sized reactor, surfaces for bonding (16) to (19) of the inorganic transparent substrates (11) to (13), bonded on contact to one another, are initially polished and planarized. A part of the surface of each of the surfaces for bonding is then machined. The surfaces for bonding (16) to (19) are then hydrophilicity enhanced and washed with pure water. A film of pure water is swung off and removed by a centrifugal force. The resultant product is then heated with the surfaces for bonding in contact with one another. The surfaces for bonding, in contact with one another, may be bonded together by chemical bonding via oxygen to form small-sized reactors (1), (2) in which the inorganic transparent substrates (11) to (13) are bonded together strongly.Type: ApplicationFiled: June 17, 2010Publication date: September 6, 2012Inventors: Yuji Kaneko, Jumi Kaneko, Katsunobu Endo, Shigeshi Sakakibara, Kazuhiro Shinoda
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Patent number: 8222557Abstract: An electric discharge machining apparatus having a gate signal generator for generating a gate signal, a power source for applying a voltage across a work gap formed between a tool electrode and a workpiece, a gap voltage detector for detecting a gap voltage of the work gap, an electric discharge detector for supplying an electric discharge detection signal representing electric discharge to the gate signal generator. The electric discharge detector includes a counter for generating a sample clock having a frequency greater than the frequency of the gate signal, and a comparator for receiving the gap voltage and determining that a fall in the gap voltage is larger than a specified voltage difference in each sample clock. The electric discharge detection signal is generated in response to an output signal of the comparator.Type: GrantFiled: March 24, 2008Date of Patent: July 17, 2012Assignee: Sodick Co., Ltd.Inventors: Yuji Kaneko, Takenori Harada
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Publication number: 20120114515Abstract: A method for producing a rare earth magnet material which allows efficient Dy or the like diffusion into an inside thereof. This method includes a preparation step of preparing a powder mixture of magnet powder including one or more rare earth elements including neodymium, boron, and the remainder being iron; and neodymium fluoride powder; a heating step of heating a compact of the powder mixture and causing oxygen around magnet powder particles to react with the fluoride powder, thereby obtaining a lump rare earth magnet material in which neodymium oxyfluoride is wholly distributed. The fluoride powder traps oxygen enclosed in the powder mixture and fixes the oxygen as stable NdOF. When Dy is diffused into this rare earth magnet material, Dy smoothly enters into its inside without being oxidized at grain boundaries. Consequently, coercivity of the entire rare earth magnet material can be efficiently increased without wasting scarce Dy.Type: ApplicationFiled: September 10, 2010Publication date: May 10, 2012Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yuji Kaneko, Yukio Takada
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Patent number: 8161138Abstract: A replication system rapidly switches from a normal-system site to a standby-system site in the event of a problem and reliably maintains functions, and moreover, reduces drops in performance. A first site provides system functions that accompany writing and reading of data. A relay transfer device receives update information from the first site, causes completion of processes for replication in the first site, and continuously executes processes for successively transferring the update information to a second site. The second site receives the update information of the first site and applies this update information to itself to retain a replica of the data of the first site. If, when executing a write request command or a read request command to provide at least a portion of the system functions, the second site has not yet retained the most recent data that are the target of the command, the second site acquires the necessary update information and then executes the command.Type: GrantFiled: January 14, 2010Date of Patent: April 17, 2012Assignee: NEC CorporationInventors: Masaki Kan, Jun-ichi Yamato, Yuji Kaneko
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Patent number: 8029587Abstract: A strainer provided in a refrigerant piping of an air conditioning device through which refrigerant flows includes a cylindrical shell disposed in the refrigerant piping, a cage type filter which includes an opening at one end and a bottom at the other end facing with each other relative to the flowing direction of the refrigerant and a meshed circumferential portion for allowing the refrigerant to pass through, but preventing sludge to pass through an annular passage provided between an outer circumferential portion of the filter and an inner circumferential portion of the cylindrical shell for the refrigerant to flow through and a leading pipe inserted into the refrigerant piping for letting the refrigerant and sludge and having an opening disposed in the cylindrical shell adjacent and opposing to the bottom of the filter and an inner circumferential wall along which sludge flows.Type: GrantFiled: February 10, 2009Date of Patent: October 4, 2011Assignee: Aisin Seiki Kabushiki KaishaInventors: Yuji Kaneko, Yoshimi Watanabe
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Publication number: 20110225358Abstract: The invention proposes a disk array device that can improve response performance while maintaining data consistency even in the case a write request is received from a host device by a controller that does not have master authority. The disk array device includes a master controller and a slave controller. Upon adding identifying information indicating that write data has been stored in a buffer memory to the write request, the slave controller transmits, to the master controller, the write request to which the identifying information has been added as well as the write data. After having stored the write data, the master controller transmits the write request to which the identifying information has been added to the slave controller. Upon receiving the write request, the slave controller alters the attributes of the buffer memory where the write data has been stored, from the buffer memory to the cache memory.Type: ApplicationFiled: March 10, 2011Publication date: September 15, 2011Inventor: Yuji Kaneko
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Patent number: 7892365Abstract: A method of making a magnetically anisotropic magnet powder according to the present invention includes the steps of preparing a master alloy by cooling a rare-earth-iron-boron based molten alloy and subjecting the master alloy to an HDDR process. The step of preparing the master alloy includes the step of forming a solidified alloy layer, including a plurality of R2Fe14B-type crystals (where R is at least one element selected from the group consisting of the rare-earth elements and yttrium) in which rare-earth-rich phases are dispersed, by cooling the molten alloy through contact with a cooling member.Type: GrantFiled: December 5, 2007Date of Patent: February 22, 2011Assignee: Hitachi Metals, Ltd.Inventors: Hiroyuki Tomizawa, Yuji Kaneko
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Patent number: 7867343Abstract: In a rare earth magnet, an added heavy rare earth element RH such as Dy is effectively used without any waste, so as to effectively improve the coercive force. First, a molten alloy of a material alloy for an R-T-Q rare earth magnet (R is a rare earth element, T is a transition metal element, and Q is at least one element selected from the group consisting of B, C, N, Al, Si, and P), the rare earth element R containing at least one kind of element RL selected from the group consisting of Nd and Pr and at least one kind of element RH selected from the group consisting of Dy Tb, and Ho is prepared. The molten alloy is quenched, so as to produce a solidified alloy. Thereafter, a thermal treatment in which the rapidly solidified alloy is held in a temperature range of 400° C. or higher and lower than 800° C. for a period of not shorter than 5 minutes nor longer than 12 hours is performed.Type: GrantFiled: June 26, 2007Date of Patent: January 11, 2011Assignee: Hitachi Metals, Ltd.Inventors: Hiroyuki Tomizawa, Yuji Kaneko
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Patent number: 7860867Abstract: An information managing system includes a parameter setting unit for setting a parameter representative of an attribute of a user and information to be retrieved, and an information relevance space generator for generating an information relevance space representative of information indicating a relevance between the user and the information to be retrieved, based on the parameter set by the parameter setting unit.Type: GrantFiled: December 20, 2006Date of Patent: December 28, 2010Assignee: NEC CorporationInventors: Masaki Kan, Junichi Yamato, Yuji Kaneko, Yoshihiro Kajiki
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Publication number: 20100235324Abstract: A replication system rapidly switches from a normal-system site to a standby-system site in the event of a problem and reliably maintains functions, and moreover, reduces drops in performance. A first site provides system functions that accompany writing and reading of data. A relay transfer device receives update information from the first site, causes completion of processes for replication in the first site, and continuously executes processes for successively transferring the update information to a second site. The second site receives the update information of the first site and applies this update information to itself to retain a replica of the data of the first site. If, when executing a write request command or a read request command to provide at least a portion of the system functions, the second site has not yet retained the most recent data that are the target of the command, the second site acquires the necessary update information and then executes the command.Type: ApplicationFiled: January 14, 2010Publication date: September 16, 2010Applicant: NEC CORPORATIONInventors: Masaki KAN, Jun-ichi YAMATO, Yuji KANEKO
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Publication number: 20100206830Abstract: There is provided a heavy construction installation method which does not need a secondarily transport in a construction field even if an installation position of a heavy construction is apart from a berthing position of a transport ship. A movable area where a ground plane is reinforced so that a heavy hoisting machine for installing a heavy construction in a building is movable is constructed so as to include a circle drawn around an installation position in the building with a maximum operating radius of the heavy hoisting machine relative to a weight of the heavy construction being as a radius, and a circle drawn around a loaded position of the heavy construction at a transport ship coming alongside a landing place with the maximum operating radius being as a radius.Type: ApplicationFiled: February 17, 2010Publication date: August 19, 2010Inventors: Yuji Kaneko, Ryohel Miyahara, Sumko Maezawa, Kensuke Morita, Takashi Okano
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Publication number: 20100090708Abstract: An electric discharge machining apparatus having a gate signal generator for generating a gate signal, a power source for applying a voltage across a work gap formed between a tool electrode and a workpiece, a gap voltage detector for detecting a gap voltage of the work gap, an electric discharge detector for supplying an electric discharge detection signal representing electric discharge to the gate signal generator. The electric discharge detector includes a counter for generating a sample clock having a frequency greater than the frequency of the gate signal, and a comparator for receiving the gap voltage and determining that a fall in the gap voltage is larger than a specified voltage difference in each sample clock. The electric discharge detection signal is generated in response to an output signal of the comparator.Type: ApplicationFiled: March 24, 2008Publication date: April 15, 2010Applicant: Sodick Co, Ltd.Inventors: Yuji Kaneko, Takenori Harada
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Publication number: 20100088318Abstract: Disclosed is a system in which an index registration unit registers an index, which will be used for search processing, as a partitioned index which is partitioned on a time series basis, and a search means reads indexes older than a specified point in time, which is used as a search base point, to perform search processing, thereby searching for information based on a point in time in the past.Type: ApplicationFiled: October 2, 2007Publication date: April 8, 2010Inventors: Masaki Kan, Yoshihiro Kajiki, Satoshi Yamakawa, Takashi Torii, Yuji Kaneko
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Patent number: 7585378Abstract: A method of making a material alloy for an R-T-Q based rare-earth magnet according to the present invention includes the steps of: preparing a melt of an R-T-Q based rare-earth alloy, where R is rare-earth elements, T is a transition metal element, Q is at least one element selected from the group consisting of B, C, N, Al, Si and P, and the rare-earth elements R include at least one element RL selected from the group consisting of Nd, Pr, Y, La, Ce, Pr, Sm, Eu, Gd, Er, Tm, Yb and Lu and at least one element RH selected from the group consisting of Dy, Tb and Ho; cooling the melt of the alloy to a temperature of 700° C. to 1,000° C. as first cooling process, thereby making a solidified alloy; maintaining the solidified alloy at a temperature within the range of 700° C. to 900° C. for 15 seconds to 600 seconds; and cooling the solidified alloy to a temperature of 400° C. or less as a second cooling process.Type: GrantFiled: April 27, 2005Date of Patent: September 8, 2009Assignee: Hitachi Metals, Ltd.Inventors: Tomoori Odaka, Yuji Kaneko
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Publication number: 20090206018Abstract: A strainer provided in a refrigerant piping of an air condoning device through which refrigerant flows includes a cylindrical shell disposed in the refrigerant piping, a cage type filter which includes an opening at one end and a bottom at the other end facing with each other relative to the flowing direction of the refrigerant and a meshed circumferential portion for allowing the refrigerant to pass through, but preventing sludge to pass through an annular passage provided between an outer circumferential portion of the filter and an inner circumferential portion of the cylindrical shell for the refrigerant to flow through and a leading pipe inserted into the refrigerant piping for letting the refrigerant and sludge and having an opening disposed in the cylindrical shell adjacent and opposing to the bottom of the filter and an inner circumferential wall along which sludge flows.Type: ApplicationFiled: February 10, 2009Publication date: August 20, 2009Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yuji KANEKO, Yoshimi Watanabe