Patents by Inventor Nobuo Kawamura
Nobuo Kawamura 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: 20240074248Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.Type: ApplicationFiled: October 27, 2023Publication date: February 29, 2024Applicant: Japan Display Inc.Inventors: Shinichi KAWAMURA, Nobuo IMAI, Hiroshi OGAWA
-
Patent number: 11636107Abstract: A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query and executes the query based on the query execution plan. In the execution of the query, the DBMS dynamically generates a task for executing a DB operation and executes the dynamically generated task. The DBMS executes a task in a plurality of threads executed by a processor core.Type: GrantFiled: August 5, 2019Date of Patent: April 25, 2023Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYOInventors: Akira Shimizu, Seisuke Tokuda, Michiko Yoshida, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
-
Patent number: 10885030Abstract: A second query execution part is added to a database management system comprising a first query execution part configured to execute a query based on a query execution plan of a query to a database and to return a query execution result to the query issuance source and a buffer management part configured to read a data of a read request from the database to store the data into the buffer and to provide the data to an issuance source of the read request if data of a read request has not been stored in a buffer in the case where the read request of data is received and configured to read data of a read request from the buffer and to provide the data to a issuance source of the read request if data of a read request has been stored in the buffer.Type: GrantFiled: August 29, 2013Date of Patent: January 5, 2021Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYOInventors: Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, Nobuo Kawamura
-
Patent number: 10747773Abstract: A database management system (DBMS) manages a database existing in a second storage device with an access speed lower than that of a first storage device. In an execution of a query, the DBMS dynamically generates tasks two or more executable tasks in parallel. The DBMS generates task start information which is information representing a content of the execution of the task, manages the task start information, and executes a content represented by the task start information by the task. The task start information includes a data address set existing in the second storage device. The DBMS controls movement of the data address sets between the first storage device and the second storage device based on a management state of the task start information. In addition, the DBMS selects the task start information based on whether or not the data address set exists in the first storage device.Type: GrantFiled: May 24, 2012Date of Patent: August 18, 2020Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYOInventors: Michiko Yoshida, Akira Shimizu, Seisuke Tokuda, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
-
Patent number: 10632461Abstract: According to one embodiment, a sealed chemical container has a bonding area where a flexible sheet-like member is firmly bonded onto a plate, and the bonding area defines a first compartment which can be swollen and an outflow passage which communicates with the first compartment via an opening. A first seal portion is weakly bonded onto the plate compared to the bonding area to define the first compartment to block communication between the first compartment and an outflow passage. The first seal portion is peeled off by an increase in internal pressure in the first compartment to allow communication between the first compartment and the outflow passage.Type: GrantFiled: September 28, 2017Date of Patent: April 28, 2020Assignee: Canon Medical Systems CorporationInventors: Hiroaki Kushima, Nobuo Kawamura, Tetsuya Kuwabara, Sotaro Taki
-
Patent number: 10515078Abstract: Provided is a database management apparatus, having a processor, a memory, and a storage device, whereby a database which is stored in the storage device is managed, the database management apparatus further comprising: a query acceptance unit which accepts a query to the database; a query execution plan generating unit which generates a query execution plan which includes a database operation which is necessary for executing the accepted query; and a query execution unit which, in executing the accepted query on the basis of the generated query execution plan, dynamically generates a task for executing the database operation, and executes the dynamically generated task. The query execution unit acquires a resource usage state, and, when executing the next database operation, generates a new task on the basis of the resource usage state, and executes the new task in parallel with the task.Type: GrantFiled: August 30, 2013Date of Patent: December 24, 2019Assignees: Hitachi, Ltd., The University of TokyoInventors: Akira Shimizu, Shinji Fujiwara, Kazuhiko Mogi, Nobuo Kawamura, Kazuo Goda, Masaru Kitsuregawa
-
Publication number: 20190354527Abstract: A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query and executes the query based on the query execution plan. In the execution of the query, the DBMS dynamically generates a task for executing a DB operation and executes the dynamically generated task. The DBMS executes a task in a plurality of threads executed by a processor core.Type: ApplicationFiled: August 5, 2019Publication date: November 21, 2019Inventors: Akira SHIMIZU, Seisuke TOKUDA, Michiko YOSHIDA, Kazuhiko MOGI, Shinji FUJIWARA, Nobuo KAWAMURA, Masaru KITSUREGAWA, Kazuo GODA
-
Patent number: 10417227Abstract: A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query and executes the query based on the query execution plan. In the execution of the query, the DBMS dynamically generates a task for executing a DB operation and executes the dynamically generated task. The DBMS executes a task in a plurality of threads executed by a processor core.Type: GrantFiled: April 27, 2012Date of Patent: September 17, 2019Assignees: Hitachi, Ltd., The University of TokyoInventors: Akira Shimizu, Seisuke Tokuda, Michiko Yoshida, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
-
Publication number: 20180093264Abstract: According to one embodiment, a sealed chemical container has a bonding area where a flexible sheet-like member is firmly bonded onto a plate, and the bonding area defines a first compartment which can be swollen and an outflow passage which communicates with the first compartment via an opening. A first seal portion is weakly bonded onto the plate compared to the bonding area to define the first compartment to block communication between the first compartment and an outflow passage. The first seal portion is peeled off by an increase in internal pressure in the first compartment to allow communication between the first compartment and the outflow passage.Type: ApplicationFiled: September 28, 2017Publication date: April 5, 2018Applicant: Toshiba Medical Systems CorporationInventors: Hiroaki KUSHIMA, Nobuo KAWAMURA, Tetsuya KUWABARA, Sotaro TAKI
-
Publication number: 20180066247Abstract: According to one embodiment, a biological tissue grinding container includes a container portion and a vibrated portion, and vibration is transmitted to biological tissue from the vibration portion to grind the biological tissue. The vibrated portion includes a contact portion to be brought into direct contact with the biological tissue and defines a chamber which stores the biological tissue to be ground, together with the container portion. The vibrated portion is fixedly supported to be vibratable to the container portion directly or via a support portion provided between the container portion and itself, and has solidity higher than that of the container portion or support portion.Type: ApplicationFiled: September 6, 2017Publication date: March 8, 2018Applicant: Toshiba Medical Systems CorporationInventors: Hiroaki Kushima, Nobuo Kawamura, Tetsuya Kuwabara
-
Patent number: 9842136Abstract: A database management system (DBMS) generates a query execution plan including information indicating one or more database (DB) operations necessary to execute the query. The DBMS dynamically generates a task for executing the DB operation in execution of the query. The DBMS performs a determination processing of simultaneous-task-generation number when newly creating a task. The determination processing of simultaneous-task-generation number is to calculate the number of simultaneous task generation, which is the number of tasks that can be generated simultaneously, based on the number of tasks which can be newly generated, a first memory resource amount which is the amount of memory resources necessary to be allocated per task newly generated, and a second memory resource amount which is the number of memory resources that can be newly allocated. The number of tasks generated dynamically and simultaneously is equal to or smaller than the calculated number of simultaneously generatable tasks.Type: GrantFiled: April 27, 2012Date of Patent: December 12, 2017Assignees: Hitachi, Ltd., The University of TokyoInventors: Seisuke Tokuda, Akira Shimizu, Michiko Yoshida, Nobuo Kawamura, Shinji Fujiwara, Kazuhiko Mogi, Masaru Kitsuregawa, Kazuo Goda
-
Patent number: 9841989Abstract: A parallel data processing system includes a parallel data processing execution unit for reading a data from a data set including a first data set that includes a plurality of first data and a second data set that includes a plurality of second data and executing processing. The parallel data processing execution unit (A) reads the first data from the first data set, and acquires a first value from the first data based on first format information acquired from an application, (B) generates one or more threads for respectively reading one or more second data corresponding to the first value from the second data set based on first reference information acquired from the application, (C) executes (A) and (B) on one or more first data in the first data set, and (D) executes a plurality of the threads in parallel.Type: GrantFiled: May 31, 2012Date of Patent: December 12, 2017Assignees: Hitachi, Ltd., The University of TokyoInventors: Kazuo Goda, Hiroyuki Yamada, Masaru Kitsuregawa, Nobuo Kawamura, Shinji Fujiwara, Kazuhiko Mogi
-
Patent number: 9710515Abstract: This analysis system analyzes the behavior of a DBMS in a computer system having a computer which executes tasks in parallel and reads data from a database (DB) when executing a query. This analysis system acquires the number of selected rows corresponding to a key value of an index key used in the query, and calculates a model-based predicted degree of processing parallelism of the processing corresponding to the query. The system acquires, from the storage device, event information on an input-output event with respect to the storage medium when the processing corresponding to the query is executed actually, calculates a measured degree of processing parallelism when the processing corresponding to the query is executed actually, based on the event information, and displays information based on the model-based predicted degree of processing parallelism and the measured degree of processing parallelism.Type: GrantFiled: May 31, 2012Date of Patent: July 18, 2017Assignees: Hitachi, Ltd., The University of TokyoInventors: Hideomi Idei, Norifumi Nishikawa, Nobuo Kawamura, Kazuhiko Mogi, Masaru Kitsuregawa, Masashi Toyoda, Kazuo Goda
-
Publication number: 20160232206Abstract: A second query execution part is added to a database management system comprising a first query execution part configured to execute a query based on a query execution plan of a query to a database and to return a query execution result to the query issuance source and a buffer management part configured to read a data of a read request from the database to store the data into the buffer and to provide the data to an issuance source of the read request if data of a read request has not been stored in a buffer in the case where the read request of data is received and configured to read data of a read request from the buffer and to provide the data to a issuance source of the read request if data of a read request has been stored in the buffer.Type: ApplicationFiled: August 29, 2013Publication date: August 11, 2016Applicants: Hitachi, Ltd., The University of TokyoInventors: Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, Nobuo Kawamura
-
Patent number: 9388956Abstract: According to one embodiment, a lighting device includes a light source, and at least one light distribution control member configured to control distribution of light from the light source. The light distribution control member includes a base member higher in refractive index than air, and two optical control layers located opposite each other with a predetermined space therebetween on either side of the base member. The two optical control layers each includes a first region and a second region formed in correlative patterns. The light distribution control member is configured to control the light distribution based on a change of an overlap between the first and second regions depending on a direction of transmitted light.Type: GrantFiled: December 12, 2013Date of Patent: July 12, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ken Takahashi, Osamu Ono, Shusuke Morita, Masahiro Yokota, Nobuo Kawamura, Takeshi Ookawa, Hidemi Matsuda, Hideo Oota, Takashi Nishimura
-
Patent number: 9384219Abstract: A computer system, comprising: a computer for outputting a result in response to a request; and a storage system for storing data output based on the request, the computer including: a request reception module for receiving the request; a processing procedure generation module for generating a plurality of processing procedures including an order of access to the data stored in the plurality of storage devices; a data division module for dividing the data; an information obtaining module for obtaining load information indicating a load condition of the storage system; an allotment determination module for determining, based on the obtained load information, allotments for allocating the divided data to be processed by the generated plurality of processing procedures; and a processing execution module for executing, based on the determined allotments, the generated plurality of processing procedures in parallel.Type: GrantFiled: February 24, 2011Date of Patent: July 5, 2016Assignee: Hitachi, Ltd.Inventors: Kazutomo Ushijima, Akira Shimizu, Seisuke Tokuda, Michiko Tanaka, Nobuo Kawamura, Norihiro Hara
-
Publication number: 20160154848Abstract: Provided is a database management apparatus, having a processor, a memory, and a storage device, whereby a database which is stored in the storage device is managed, the database management apparatus further comprising: a query acceptance unit which accepts a query to the database; a query execution plan generating unit which generates a query execution plan which includes a database operation which is necessary for executing the accepted query; and a query execution unit which, in executing the accepted query on the basis of the generated query execution plan, dynamically generates a task for executing the database operation, and executes the dynamically generated task. The query execution unit acquires a resource usage state, and, when executing the next database operation, generates a new task on the basis of the resource usage state, and executes the new task in parallel with the task.Type: ApplicationFiled: August 30, 2013Publication date: June 2, 2016Inventors: Akira SHIMIZU, Shinji FUJIWARA, Kazuhiko MOGI, Nobuo KAWAMURA, Kazuo GODA, Masaru KITSUREGAWA
-
Patent number: 9348866Abstract: It is provided a database processing method including: a first step of receiving a query request instructing to output the requested data as query results in a designated order; a second step of generating a query execution plan including an order of accessing tables for storing the data based on the received query request; a third step of acquiring the data requested based on the query request from the database based on the generated query execution plan; a fourth step of generating intermediate results including the acquired data; a fifth step of sorting the generated intermediate results in the designated order; a sixth step of judging, for each of the intermediate results, whether an order of the sorted intermediate results has been determined; and a seventh step of outputting the intermediate results whose order has been determined as the query results in order from a head thereof.Type: GrantFiled: January 31, 2011Date of Patent: May 24, 2016Assignee: Hitachi, Ltd.Inventors: Michiko Tanaka, Kazutomo Ushijima, Akira Shimizu, Seisuke Tokuda, Nobuo Kawamura
-
Patent number: 9298394Abstract: According to this invention, a data arrangement method, the computer connected to a storage system which provides a plurality of logical storage devices comprising a plurality of physical storage devices arranges data in a logical storage volume constructed by integrating the plurality of logical storage devices. The method includes: a step wherein the computer receives an instruction to build the logical storage volume using the plurality of logical storage devices or to rebuild the constructed logical storage volume; a step wherein the computer obtains information about the plurality of physical storage devices constituting each of the plurality of logical storage devices included in the received instruction; and a step wherein the arrangement position of data into the logical storage volume is determined on the basis of the obtained information about the plurality of physical storage devices.Type: GrantFiled: August 10, 2010Date of Patent: March 29, 2016Assignee: HITACHI, LTD.Inventors: Seisuke Tokuda, Kazutomo Ushijima, Akira Shimizu, Michiko Tanaka, Shinji Fujiwara, Nobuo Kawamura
-
Publication number: 20150169591Abstract: A database management system (DBMS) manages a database existing in a second storage device with an access speed lower than that of a first storage device. In an execution of a query, the DBMS dynamically generates tasks two or more executable tasks in parallel. The DBMS generates task start information which is information representing a content of the execution of the task, manages the task start information, and executes a content represented by the task start information by the task. The task start information includes a data address set existing in the second storage device. The DBMS controls movement of the data address sets between the first storage device and the second storage device based on a management state of the task start information. In addition, the DBMS selects the task start information based on whether or not the data address set exists in the first storage device.Type: ApplicationFiled: May 24, 2012Publication date: June 18, 2015Applicants: THE UNIVERSITY OF TOKYO, HITACHI, LTD.Inventors: Michiko Yoshida, Akira Shimizu, Seisuke Tokuda, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda