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: 20240074248
    Abstract: 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: Application
    Filed: October 27, 2023
    Publication date: February 29, 2024
    Applicant: Japan Display Inc.
    Inventors: Shinichi KAWAMURA, Nobuo IMAI, Hiroshi OGAWA
  • Patent number: 11636107
    Abstract: 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: Grant
    Filed: August 5, 2019
    Date of Patent: April 25, 2023
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Akira Shimizu, Seisuke Tokuda, Michiko Yoshida, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
  • Patent number: 10885030
    Abstract: 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: Grant
    Filed: August 29, 2013
    Date of Patent: January 5, 2021
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, Nobuo Kawamura
  • Patent number: 10747773
    Abstract: 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: Grant
    Filed: May 24, 2012
    Date of Patent: August 18, 2020
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Michiko Yoshida, Akira Shimizu, Seisuke Tokuda, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
  • Patent number: 10632461
    Abstract: 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: Grant
    Filed: September 28, 2017
    Date of Patent: April 28, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hiroaki Kushima, Nobuo Kawamura, Tetsuya Kuwabara, Sotaro Taki
  • Patent number: 10515078
    Abstract: 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: Grant
    Filed: August 30, 2013
    Date of Patent: December 24, 2019
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Akira Shimizu, Shinji Fujiwara, Kazuhiko Mogi, Nobuo Kawamura, Kazuo Goda, Masaru Kitsuregawa
  • Publication number: 20190354527
    Abstract: 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: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: Akira SHIMIZU, Seisuke TOKUDA, Michiko YOSHIDA, Kazuhiko MOGI, Shinji FUJIWARA, Nobuo KAWAMURA, Masaru KITSUREGAWA, Kazuo GODA
  • Patent number: 10417227
    Abstract: 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: Grant
    Filed: April 27, 2012
    Date of Patent: September 17, 2019
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Akira Shimizu, Seisuke Tokuda, Michiko Yoshida, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda
  • Publication number: 20180093264
    Abstract: 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: Application
    Filed: September 28, 2017
    Publication date: April 5, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Hiroaki KUSHIMA, Nobuo KAWAMURA, Tetsuya KUWABARA, Sotaro TAKI
  • Publication number: 20180066247
    Abstract: 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: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Hiroaki Kushima, Nobuo Kawamura, Tetsuya Kuwabara
  • Patent number: 9842136
    Abstract: 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: Grant
    Filed: April 27, 2012
    Date of Patent: December 12, 2017
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Seisuke Tokuda, Akira Shimizu, Michiko Yoshida, Nobuo Kawamura, Shinji Fujiwara, Kazuhiko Mogi, Masaru Kitsuregawa, Kazuo Goda
  • Patent number: 9841989
    Abstract: 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: Grant
    Filed: May 31, 2012
    Date of Patent: December 12, 2017
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Kazuo Goda, Hiroyuki Yamada, Masaru Kitsuregawa, Nobuo Kawamura, Shinji Fujiwara, Kazuhiko Mogi
  • Patent number: 9710515
    Abstract: 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: Grant
    Filed: May 31, 2012
    Date of Patent: July 18, 2017
    Assignees: Hitachi, Ltd., The University of Tokyo
    Inventors: Hideomi Idei, Norifumi Nishikawa, Nobuo Kawamura, Kazuhiko Mogi, Masaru Kitsuregawa, Masashi Toyoda, Kazuo Goda
  • Publication number: 20160232206
    Abstract: 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: Application
    Filed: August 29, 2013
    Publication date: August 11, 2016
    Applicants: Hitachi, Ltd., The University of Tokyo
    Inventors: Yuto Hayamizu, Kazuo Goda, Masaru Kitsuregawa, Nobuo Kawamura
  • Patent number: 9388956
    Abstract: 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: Grant
    Filed: December 12, 2013
    Date of Patent: July 12, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ken Takahashi, Osamu Ono, Shusuke Morita, Masahiro Yokota, Nobuo Kawamura, Takeshi Ookawa, Hidemi Matsuda, Hideo Oota, Takashi Nishimura
  • Patent number: 9384219
    Abstract: 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: Grant
    Filed: February 24, 2011
    Date of Patent: July 5, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Kazutomo Ushijima, Akira Shimizu, Seisuke Tokuda, Michiko Tanaka, Nobuo Kawamura, Norihiro Hara
  • Publication number: 20160154848
    Abstract: 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: Application
    Filed: August 30, 2013
    Publication date: June 2, 2016
    Inventors: Akira SHIMIZU, Shinji FUJIWARA, Kazuhiko MOGI, Nobuo KAWAMURA, Kazuo GODA, Masaru KITSUREGAWA
  • Patent number: 9348866
    Abstract: 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: Grant
    Filed: January 31, 2011
    Date of Patent: May 24, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Michiko Tanaka, Kazutomo Ushijima, Akira Shimizu, Seisuke Tokuda, Nobuo Kawamura
  • Patent number: 9298394
    Abstract: 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: Grant
    Filed: August 10, 2010
    Date of Patent: March 29, 2016
    Assignee: HITACHI, LTD.
    Inventors: Seisuke Tokuda, Kazutomo Ushijima, Akira Shimizu, Michiko Tanaka, Shinji Fujiwara, Nobuo Kawamura
  • Publication number: 20150169591
    Abstract: 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: Application
    Filed: May 24, 2012
    Publication date: June 18, 2015
    Applicants: THE UNIVERSITY OF TOKYO, HITACHI, LTD.
    Inventors: Michiko Yoshida, Akira Shimizu, Seisuke Tokuda, Kazuhiko Mogi, Shinji Fujiwara, Nobuo Kawamura, Masaru Kitsuregawa, Kazuo Goda