Patents by Inventor Masakazu Sano
Masakazu Sano 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: 11093502Abstract: A method, system and computer program product for storing a sub-table by deciding one of a plurality of table storage areas, the sub-tables resulting from partitioning of a table in a database. To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: GrantFiled: November 7, 2018Date of Patent: August 17, 2021Assignee: International Business Machines CorporationInventors: Soh Kaijima, Masahiro Ohkawa, Akira Sakaguchi, Masakazu Sano
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Patent number: 10394819Abstract: A system for managing a plurality of storage devices that are configured to store a database. The system includes an access instruction acquiring unit configured for acquiring an access instruction to access the database. The system also includes a predicting unit configured for predicting a table to be accessed in response to the acquired access instruction. The system further includes a relocation unit configured for mirroring the table predicted by the predicting unit, the mirroring between the plurality of storage devices.Type: GrantFiled: July 19, 2016Date of Patent: August 27, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Soh Kaijima, Katsuyoshi Katori, Seiji Minami, Masakazu Sano
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Publication number: 20190073396Abstract: A method, system and computer program product for storing a sub-table by deciding one of a plurality of table storage areas, the sub-tables resulting from partitioning of a table in a database. To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: ApplicationFiled: November 7, 2018Publication date: March 7, 2019Inventors: Soh Kaijima, Masahiro Ohkawa, Akira Sakaguchi, Masakazu Sano
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Patent number: 10169420Abstract: A method, system and computer program product for storing a sub-table by deciding one of a plurality of table storage areas, the sub-tables resulting from partitioning of a table in a database. To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: GrantFiled: October 27, 2017Date of Patent: January 1, 2019Assignee: International Business Machines CorporationInventors: Soh Kaijima, Masahiro Ohkawa, Akira Sakaguchi, Masakazu Sano
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Publication number: 20180291546Abstract: Disclosed is a purification device, including a case part having an internal space for accommodating an article; and a purification unit disposed in the internal space. The purification unit includes: a flow path provided with a flow inlet and a flow outlet which are in communication with the internal space; a fan enabling air to circulate between the flow path and the internal space; an ozone generating device generating ozone from air; a cover covering the ozone generating device; a supply line taking air from the internal space through an intake port and supplying the air to the ozone generating device; and a guide-in line guiding the ozone generated by the ozone generating device into the flow path. The intake port is exposed outside of the cover to the internal space.Type: ApplicationFiled: September 29, 2016Publication date: October 11, 2018Inventors: Katsumi OE, Hiroyuki KITAKAWA, Masakazu SANO, Toshimichi FUKUI
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Publication number: 20180052889Abstract: A method, system and computer program product for storing a sub-table by deciding one of a plurality of table storage areas, the sub-tables resulting from partitioning of a table in a database. To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: ApplicationFiled: October 27, 2017Publication date: February 22, 2018Inventors: Soh Kaijima, Masahiro Ohkawa, Akira Sakaguchi, Masakazu Sano
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Patent number: 9864777Abstract: To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: GrantFiled: May 28, 2009Date of Patent: January 9, 2018Assignee: International Business Machines CorporationInventors: Soh Kaijima, Masahiro Okawa, Akira Sakaguchi, Masakazu Sano
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Publication number: 20160328448Abstract: A system for managing a plurality of storage devices that are configured to store a database. The system includes an access instruction acquiring unit configured for acquiring an access instruction to access the database. The system also includes a predicting unit configured for predicting a table to be accessed in response to the acquired access instruction. The system further includes a relocation unit configured for mirroring the table predicted by the predicting unit, the mirroring between the plurality of storage devices.Type: ApplicationFiled: July 19, 2016Publication date: November 10, 2016Inventors: Soh Kaijima, Katsuyoshi Katori, Seiji Minami, Masakazu Sano
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Patent number: 9424316Abstract: A system for managing a plurality of storage devices that are configured to store a database. The system includes an access instruction acquiring unit configured for acquiring an access instruction to access the database. The system also includes a predicting unit configured for predicting a table to be accessed in response to the acquired access instruction. The system further includes a relocation unit configured for mirroring the table predicted by the predicting unit, the mirroring between the plurality of storage devices.Type: GrantFiled: December 6, 2011Date of Patent: August 23, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Soh Kaijima, Katsuyoshi Katori, Seiji Minami, Masakazu Sano
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Publication number: 20120166395Abstract: A system for managing a plurality of storage devices that are configured to store a database. The system includes an access instruction acquiring unit configured for acquiring an access instruction to access the database. The system also includes a predicting unit configured for predicting a table to be accessed in response to the acquired access instruction. The system further includes a relocation unit configured for mirroring the table predicted by the predicting unit, the mirroring between the plurality of storage devices.Type: ApplicationFiled: December 6, 2011Publication date: June 28, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Soh Kaijima, Katsuyoshi Katori, Seiji Minami, Masakazu Sano
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Publication number: 20090300040Abstract: To provide efficient table partitioning, a database is described for distributively locating a plurality of sub-tables resulting from partitioning of a table in a database. This includes an acquiring section that monitors access occurrences to each of the sub-tables to acquire a history of access occurrences. Also a deciding section decides a table storage area in which a sub-table is to be located, based on the history of access occurrences to each of the sub-tables.Type: ApplicationFiled: May 28, 2009Publication date: December 3, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Soh Kaijima, Masahiro Okawa, Akira Sakaguchi, Masakazu Sano
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Patent number: 7563319Abstract: An active layer side silicon wafer is heat-treated in an oxidizing atmosphere to thereby form a buried oxide film therein. The active layer side silicon wafer is then bonded to a supporting side wafer with said buried oxide film interposed therebetween thus to fabricate an SOI wafer. Said oxidizing heat treatment is carried out under a condition satisfying the following formula: [Oi]?2.123×1021exp(?1.035/k(T+273)), where, T is a temperature of the heat treatment, and [Oi] (atmos/cm3) is an interstitial oxygen concentration.Type: GrantFiled: December 19, 2003Date of Patent: July 21, 2009Assignee: Sumitomo Mitsubishi Silicon CorporationInventors: Shigeru Umeno, Masataka Hourai, Masakazu Sano, Shinichiro Miki
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Publication number: 20050229842Abstract: An active layer side silicon wafer is heat-treated in an oxidizing atmosphere to thereby form a buried oxide film therein. The active layer side silicon wafer is then bonded to a supporting side wafer with said buried oxide film interposed therebetween thus to fabricate an SOI wafer. Said oxidizing heat treatment is carried out under a condition satisfying the following formula: [Oi]?2.123×1021exp(?1.035/k(T+273)), where, T is a temperature of the heat treatment, and [Oi] (atmos/cm3) is an interstitial oxygen concentration.Type: ApplicationFiled: December 19, 2003Publication date: October 20, 2005Inventors: Shigeru Umeno, Masakata Hourai, Masakazu Sano, Shinichiro Miki
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Patent number: 6515265Abstract: When power supply to a high voltage transformer starts, the phase &thgr; of the voltage of an AC power source when power supply to the high voltage transformer is stopped last time is referred to. In accordance with the value of the phase &thgr;, the phase of the voltage of the AC power source when power supply to the high voltage transformer starts is determined, so that the peak value of the rush current in the high voltage transformer is minimized.Type: GrantFiled: August 27, 2001Date of Patent: February 4, 2003Assignee: Sanyo Electric Co., Ltd.Inventor: Masakazu Sano
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Publication number: 20020023921Abstract: When power supply to a high voltage transformer starts, the phase &thgr; of the voltage of an AC power source when power supply to the high voltage transformer is stopped last time is referred to. In accordance with the value of the phase &thgr;, the phase of the voltage of the AC power source when power supply to the high voltage transformer starts is determined, so that the peak value of the rush current in the high voltage transformer is minimized.Type: ApplicationFiled: August 27, 2001Publication date: February 28, 2002Applicant: Sanyo Electric Co., Ltd., Moriguchi-shi, JapanInventor: Masakazu Sano
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Patent number: 6129787Abstract: An object of the present invention is to provide a single-crystal silicon wafer where octahedral voids of Grown-in defects, which are the generation source of COP on the surface and COP at several .mu.m depth of the surface layer of the single-crystal silicon wafer grown by the CZ method, are effectively eliminated, and a fabrication method of this wafer, where oxygen near the surface is out-diffused by annealing in a hydrogen and/or inactive gas ambient and oxide film on the inner walls of the octahedral voids near the surface are removed by the created unsaturated oxygen area, then oxidation annealing is performed in an oxygen ambient or mixed gas ambient of oxygen and inactive gas, so that interstitial silicon atoms are forcibly injected to completely eliminate the octahedral voids near the surface, and at the same time an IG layer is created in the bulk of the wafer.Type: GrantFiled: December 16, 1998Date of Patent: October 10, 2000Assignee: Sumitomo Metal Industries, Ltd.Inventors: Naoshi Adachi, Masakazu Sano, Shinsuke Sadamitsu, Tsuyoshi Kubota
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Patent number: 6074479Abstract: This invention anneals a vertical stack of two or more groups of unseparated wafers, with approximately 10 wafers in each group. The invention makes it possible to anneal more wafers in a single annealing operation under a variety of conditions, including: oxygen outer diffusion annealing to form a denuded zone; annealing to control bulk micro defects and provide intrinsic gettering functions; annealing to enhance gate oxide integrity by eliminating crystal-originated particles from the wafer surface and internal grown-in or as-grown defects; and suppression of dislocation and slip in elevated temperature environments.Type: GrantFiled: June 8, 1999Date of Patent: June 13, 2000Assignee: Sumitomo Metal Industries Ltd.Inventors: Naoshi Adachi, Takehiro Hisatomi, Masakazu Sano
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Patent number: 5931662Abstract: The present invention is designed to provide an annealing method for silicon single crystal wafers, which makes it possible to increase the number of silicon single crystal wafers processed during a single annealing process under a variety of annealing performed on silicon single crystal wafers, such as oxygen outer diffusion annealing for forming a DZ layer, annealing that generates and controls BMD for providing IG functions, and annealing that endeavors to improve and enhance GOI characteristics by eliminating wafer surface layer COP, and internal grown-in defects, and also enables the suppression of dislocation and slip in elevated temperature annealing environments. It calls for annealing to be performed by stacking up around 10 wafers, treating this group as a unit, placing this group, either horizontally or slightly inclined at an angle of roughly 0.5.about.5.degree.Type: GrantFiled: March 12, 1998Date of Patent: August 3, 1999Assignee: Sumitomo Sitix CorporationInventors: Naoshi Adachi, Takehiro Hisatomi, Masakazu Sano
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Patent number: 5508207Abstract: The present invention provides a method of manufacturing a semiconductor wafer whereby (1) deterioration of a micro-roughness in a low temperature range in hydrogen atmospheric treatment and increase of resistivity due to outward diffusion of an electrically active impurity in a high temperature range are prevented; (2) in the heat treatment in a hydrogen gas atmosphere, the concentration of gas molecules in the atmosphere, such as water, oxygen and the like, are brought to 5 ppm or less in water molecule conversion; and a reaction is suppressed in which a substrate surface is oxidized unequally and the micro-roughness deteriorates; and (3) the same kind of impurity as the electrically active impurity contained in a Si substrate is mixed into the atmosphere and the outward diffusion of the impurity in the vicinity of the Si substrate surface is prevented to prevent variation of the resistivity.Type: GrantFiled: April 26, 1994Date of Patent: April 16, 1996Assignee: Sumitomo Sitix CorporationInventors: Masataka Horai, Naoshi Adachi, Hideshi Nishikawa, Masakazu Sano
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Patent number: 5414632Abstract: In system and method for predicting an occurrence of failure in a machine tool, at least one monitor data (for example, position deviation variable of a tool with respect to a target position of the tool as a result of rotation of a servomotor) which is changed according to an operating situation in a series of working processes in the machine tool is detected, a prediction level of failure against the monitor data is set, the prediction level being set according to the operating situation, a comparison period of time is set according to the series of the working processes, the monitor data detected is compared with the prediction level set during a predetermined one of the series of working processes of the machine tool set as the comparison period of time, a failure prediction signal is output when the value of the monitor data exceeds the prediction level, and the prediction of the occurrence of failure is informed through a CRT on the basis of the received failure prediction signal.Type: GrantFiled: March 5, 1992Date of Patent: May 9, 1995Assignee: Jatco CorporationInventors: Yasumasa Mochizuki, Tomoaki Yoshino, Shinichi Hasegawa, Masakazu Sano