Patents by Inventor Akira Shimizu

Akira Shimizu 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).

  • Patent number: 11321302
    Abstract: A computer system according to the present invention has a plurality of processor cores that execute a plurality of threads in a parallel manner. When one of the threads updates a database (DB) region that is among a plurality of database regions associated with a database (DB), and that cannot be updated by more than one thread, the computer system selects one of one or more dedicated log buffers as a log buffer to which a log relating to the update of the database region is to be written. In contrast, when one of the threads updates a database region that is among the plurality of database regions, and that can be updated by more than one thread, the computer system selects one of one or more shared log buffers as a log buffer to which a log relating to the update of the database region is to be written. Each dedicated log buffer is a log buffer that can store one or more logs associated with only one thread and that cannot store two or more logs associate with two or more threads.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: May 3, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Tomohiro Hanai, Norifumi Nishikawa, Akira Shimizu, Kazuhiko Mogi
  • Publication number: 20220129453
    Abstract: A database system includes a plurality of DBMSs included in a plurality of nodes. Each DBMS is a first or a second DBMS. The first DBMS transfers a search query and does not execute data retrieval, and the second DBMS executes data retrieval. The plurality of nodes configure one or more node groups. Each node group includes a first node and one or more second nodes. In each node group, the first node is a logical computer that provides a first storage area and executes a first DBMS and the second node is a logical computer that provides a second storage area and executes a second DBMS, each node in the node group stores the same database therein, and data retrieval from the database in the node group is executed by one or more second DBMSs in the node group.
    Type: Application
    Filed: September 10, 2021
    Publication date: April 28, 2022
    Inventors: Hideomi IDEI, Kazuhiko MOGI, Norifumi NISHIKAWA, Akira SHIMIZU, Kazuo GODA, Yuto HAYAMIZU, Masaru KITSUREGAWA
  • Publication number: 20220085307
    Abstract: Provided is a polyester film for foldable displays that is unlikely to have cracks in the folding portion with the aim of providing a foldable display that is excellent in mass production applicability, and that does not have image distortion that may appear in the folding portion after the display is repeatedly folded. The polyester film has a thickness of 10 to 80 ?m, a refractive index in the bending direction of 1.590 to 1.620, a refractive index in the direction of a folding portion of 1.670 to 1.700, a refractive index in the thickness direction of 1.520 or less, and a density of 1.380 g/cm3 or more, wherein the bending direction refers to a direction orthogonal to the folding portion of the polyester film to be folded.
    Type: Application
    Filed: January 15, 2020
    Publication date: March 17, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Shotaro NISHIO, Kiwamu KAWAI, Akira SHIMIZU, Katsuya ITO
  • Publication number: 20220068091
    Abstract: A claw gaming machine may comprise a cabinet, a claw assembly, prize objects, and a shooter unit. The machine may be configured to: determine an outcome of a claw game; allow an input device to control the claw assembly; end the claw game when the claw assembly does not pick up a prize object and the determined outcome is a losing outcome; cause the claw assembly to move and release the picked-up object away from the shooter unit when the claw assembly does pick-up a prize object and the determined outcome is a losing outcome, cause the claw assembly to drop the picked-up object on the shooter unit when the claw assembly picks-up the object and the determined outcome is a winning outcome; and cause a winning game presentation display when the claw assembly does not pick up a prize object and the determined outcome is a winning outcome.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Takaki NARITA, Kenji ENOKIDO, Hiroki SAITO, Satoshi JOKO, Go MIYAMOTO, Akira SHIMIZU, Hiromu SAIGUSA, Jyunichi MURAKAMI, Satoshi NAKATA, Masahiro SUGIMOTO
  • Publication number: 20210303596
    Abstract: A DBMS includes a first node and a plurality of second nodes. The first node manages a state of each second node. When a first DB of the first node is updated, the update is reflected in a second DB of each second node. The first node changes a state of each of a fixed number of the second nodes to “retrieval stop” (a retrieval TX cannot be received). When each of the fixed number of the second nodes is not executing the retrieval TX, a reference destination is defined as data in the updated second DB, and the first node changes the state of the second node to “normal” (the retrieval TX can be received). When the retrieval TX is received, the first node allocates the retrieval TX to the “normal” second node.
    Type: Application
    Filed: September 17, 2020
    Publication date: September 30, 2021
    Applicant: HITACHI, LTD.
    Inventors: Naoya AKEDO, Akira SHIMIZU, Kenichi KAKU
  • Publication number: 20210292309
    Abstract: Methods for preparing a variety of bryostatin compounds are provided. The subject methods provide for preparation of bryostatin 1 in multi-gram quantities in a low and unprecedented number of convergent synthetic steps from commercially available materials. The subject methods are scalable with low estimated material costs and can provide enough material to meet clinical needs. Also provided are a variety of bryostatin analog compounds, and prodrug forms thereof, which are synthetically accessible via the subject methods and pharmaceutical compositions including the same.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 23, 2021
    Inventors: Paul Wender, Ryan Quiroz, Stephen Ho, Akira Shimizu, Steven Ryckbosch, Matthew C. Stevens, Matthew S. Jeffreys, Clayton Hardman, Jack Sloane
  • Patent number: 11080545
    Abstract: A computer-implemented method for increasing a recognition rate of an optical character recognition (OCR) system is provided. The method includes preprocessing by receiving an image, and extracting all vertical lines from the image. The method includes adding vertical lines at character areas of the image, extracting all horizontal lines from the image, and creating an unlined image removing all the vertical/horizontal lines from the image. The method further includes determining a border of a vertical direction of the unlined image based on the total of pixels of rows in each column, and adding vertical/horizontal auxiliary lines between characters of the unlined image. The method also includes postprocessing by receiving garbled words of OCR output, removing noise after morphologically analyzing, replacing garbled letters with correct ones based on a frequent edit operation, and outputting the correct word, weighting results of image distance calculations based on machine learning.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 3, 2021
    Assignee: International Business Machines Corporation
    Inventors: Kohichi Kamijoh, Akira Shimizu, Dai Sakai, Yuta Ishii
  • Patent number: 11074271
    Abstract: A database management system (DBMS) performs, in response to a conversion request to convert a store format of a table in a database, a process (base type change process) for changing a store format indicated by information (base type) indicating the store format of the table to a store format according to the conversion request, and performs a data conversion process asynchronously with the aforementioned process. In an import process after the base type change process, the DBMS imports, into the table, a chunk in the store format indicated by the base type after change. In the data conversion process, the DBMS converts a chunk in a store format different from the store format indicated by the base type into a chunk in the store format indicated by the base type.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: July 27, 2021
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Taro Fujimoto, Takuya Isozaki, Akira Shimizu, Kazuo Goda, Yuto Hayamizu, Masaru Kitsuregawa
  • Patent number: 11011369
    Abstract: There is provided a method of forming a carbon film on a workpiece, which includes: loading the workpiece into a process chamber; supplying a gas containing a boron-containing gas into the process chamber to form a seed layer composed of a boron-based thin film on a surface of the workpiece; and subsequently, supplying a hydrocarbon-based carbon source gas and a pyrolysis temperature lowering gas containing a halogen element and which lowers a pyrolysis temperature of the hydrocarbon-based carbon source gas into the process chamber, heating the hydrocarbon-based carbon source gas to a temperature lower than the pyrolysis temperature to pyrolyze the hydrocarbon-based carbon source gas, and forming the carbon film on the workpiece by a thermal CVD.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 18, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akira Shimizu, Masayuki Kitamura, Yosuke Watanabe
  • Patent number: 10947221
    Abstract: Methods for preparing a variety of bryostatin compounds are provided. The subject methods provide for preparation of bryostatin 1 in multi-gram quantities in a low and unprecedented number of convergent synthetic steps from commercially available materials. The subject methods are scalable with low estimated material costs and can provide enough material to meet clinical needs. Also provided are a variety of bryostatin analog compounds, and prodrug forms thereof, which are synthetically accessible via the subject methods and pharmaceutical compositions including the same.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: March 16, 2021
    Assignee: The Board of the Leland Stanford Junior University
    Inventors: Paul Wender, Ryan Quiroz, Stephen Ho, Akira Shimizu, Steven Ryckbosch, Matthew C. Stevens, Matthew S. Jeffreys, Clayton Hardman, Jack Sloane
  • Patent number: 10896987
    Abstract: The present invention is a sealing sheet for a back surface of a solar cell comprising only one polyester film, wherein the polyester film is composed of at least the layer A and the layer B, or the layer A, the layer B and the layer C described below, wherein the polyester film has a given whiteness and a given average reflectance of the polyester film, a given acid value of the polyester, a given thickness of the whole polyester film, a given thickness of the A layer and the B layer, and a given content of the inorganic fine particles in the whole polyester film. Layer A: a polyester resin layer in which the content of the inorganic fine particles is 10 to 35% by mass Layer B: a polyester resin layer in which the content of the inorganic fine particles is 0 to 8% by mass, which is the smallest among the contents of the inorganic fine particles in the layer A, the layer B and the layer C Layer C: a polyester resin layer in which the content of the inorganic fine particles is 0.4 to 10% by mass.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 19, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Yoshitomo Ikehata, Akira Shimizu, Jun Inagaki, Shinji Sawasaki, Ken Jibiki
  • Publication number: 20200404783
    Abstract: Provided is a prepreg capable of attaining thermal expansion coefficient reduction and elastic modulus increase without increasing the filling ratio of an inorganic filler therein and/or without using a resin having a low thermal expansion coefficient, and thereby capable of reducing warpage thereof. Specifically, provided is a prepreg containing glass fibers and a thermosetting resin composition, and containing a layer of plural glass fiber filaments aligned to run nearly parallel to each other in one direction. Also provided are a production method for the prepreg, a laminate containing the prepreg and its production method, a printed circuit board containing the laminate, and a semiconductor package having a semiconductor device mounted on the printed circuit board.
    Type: Application
    Filed: December 10, 2018
    Publication date: December 24, 2020
    Inventors: Mari SHIMIZU, Daisuke FUJIMOTO, Yasuo KAMIGATA, Tomohiko KOTAKE, Shin TAKANEZAWA, Akira SHIMIZU, Harumi NEGISHI, Kouichi AOYAGI, Sayaka KIKUCHI
  • Patent number: 10838949
    Abstract: A shared resource update apparatus includes: a processor unit including at least one processor having a plurality of processor cores that respectively execute a plurality of threads; and a storage unit storing a program that executes conflict avoidance control by being executed by the processor unit. A shared resource for the plurality of threads comprises a plurality of shared resource parts which are logically or physically partitioned. Each first thread among the plurality of threads is an update thread which updates an allocated shared resource part in response to an update request. Each second thread among the plurality of threads is a reference thread which issues an update request and references a shared resource part. Conflict avoidance control includes allocation of different shared resource parts to different update threads at a ratio of 1:n or 1:1, where n is an integer equal to or larger than 2.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: November 17, 2020
    Assignee: HITACHI, LTD.
    Inventors: Norifumi Nishikawa, Tomohiro Hanai, Akira Shimizu, Kazuhiko Mogi
  • Publication number: 20200355511
    Abstract: The present invention identifies a danger spot effectively. In a navigation device 10, a danger spot identification unit 34 identifies a jump-out danger spot on the basis of past information which is acquired by a past information acquisition unit 24 and indicates a situation of a jump-out accident in the past, and surrounding information which is acquired by a surrounding information acquisition unit 32 and indicates a surrounding situation of a vehicle. Here, the past information includes surrounding facility identification information (information related to an identification planimetric feature) used for identifying a jump-out danger spot and information related to a jump-out object. As a result, the danger spot identification unit 34 can identify a danger spot of a jump-out which can occur due to a planimetric feature (a facility) in a jump-out accident. Therefore, the navigation device 10 can identify a jump-out danger spot effectively.
    Type: Application
    Filed: November 9, 2018
    Publication date: November 12, 2020
    Inventors: Akira SHIMIZU, Makoto MATSUMARU, Ryoji NOGUCHI, Itaru TAKEMURA
  • Publication number: 20200342249
    Abstract: A computer-implemented method for increasing a recognition rate of an optical character recognition (OCR) system is provided. The method includes preprocessing by receiving an image, and extracting all vertical lines from the image. The method includes adding vertical lines at character areas of the image, extracting all horizontal lines from the image, and creating an unlined image removing all the vertical/horizontal lines from the image. The method further includes determining a border of a vertical direction of the unlined image based on the total of pixels of rows in each column, and adding vertical/horizontal auxiliary lines between characters of the unlined image. The method also includes postprocessing by receiving garbled words of OCR output, removing noise after morphologically analyzing, replacing garbled letters with correct ones based on a frequent edit operation, and outputting the correct word, weighting results of image distance calculations based on machine learning.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 29, 2020
    Inventors: Kohichi Kamijoh, Akira Shimizu, Dai Sakai, Yuta Ishii
  • Patent number: 10810174
    Abstract: A database includes a plurality of data blocks. Each of the plurality of data blocks includes a plurality of data pages in which a plurality of column values recorded in one or more records corresponding to the data block are stored. Each of the plurality of data pages has two or more column values in one column corresponding to the data page stored therein. A database server selects a data block from the plurality of data blocks and specifies a data page to be scanned from the selected data block.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: October 20, 2020
    Assignee: HITACHI, LTD.
    Inventors: Takayuki Tsuchida, Michiko Tanaka, Akira Shimizu, Shinji Fujiwara, Kazuhiko Mogi
  • Patent number: 10774194
    Abstract: A method of separating an inorganic material, the method comprising in the following order: a contact process of contacting a processing solution with a composite material, the composite material including a first organic substance that is decomposable by the processing solution, a second organic substance that is not decomposable by the processing solution, and an inorganic material; a separation process of separating the processing solution including a decomposition product of the first organic substance, from a recovered product including the inorganic material and the second organic substance; and a thermal treatment process of subjecting the recovered product to a thermal treatment at a temperature that is equal to or greater than a temperature at which the second organic substance is eliminated.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: September 15, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Akira Shimizu, Kazuhito Kobayashi, Kouichi Aoyagi
  • Patent number: 10773422
    Abstract: A method of separating an inorganic material, the method comprising in the following order: a contact process of contacting a processing solution with a composite material, the composite material including a first organic substance that is decomposable by the processing solution, a second organic substance that is not decomposable by the processing solution, and an inorganic material; and a separation process of separating the inorganic material from the processing solution including a decomposition product of the first organic substance and the second organic substance, the contact process and the separation process including adjusting the processing solution to have a temperature that is equal to or greater than a softening point of the second organic substance.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: September 15, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Akira Shimizu, Kazuhito Kobayashi, Kouichi Aoyagi
  • Patent number: 10762037
    Abstract: A data processing system according to an embodiment of the present invention may manage one or more tables and a plurality of archive files including one or more records extracted from the table. Upon receiving a search request for the table, the data processing system may generate a query (first partial query) to search for a record from the table corresponding to a condition specified by the search request, and generate a query (second partial query) to identify the archive file including the record extracted from the table specified as a search target in the search request, and search the identified archive file for the record corresponding to the condition specified by the search request. A query for deriving a union of the output results of the first partial query and the second partial query may be generated, and processing related to the generated query may be executed in parallel.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: September 1, 2020
    Assignee: HITACHI, LTD
    Inventors: Akira Shimizu, Takuya Isozaki, Norihiro Hara
  • Publication number: 20200265050
    Abstract: When a DBMS receives a suspend instruction in which a suspend completion time of query processing is a future time and between receipt of the suspend instruction and the suspend completion time, if there is a target object (at least a processing object whose execution is in progress upon receipt of the suspend instruction) whose predicted completion time is at or precedes the suspend completion time, the DBMS changes the state of the target object to a state signifying a snapshot suspend. If there is a processing object whose state signifies a snapshot suspend, the DBMS executes the processing object at or before the suspend completion time.
    Type: Application
    Filed: September 20, 2019
    Publication date: August 20, 2020
    Inventors: Akira SHIMIZU, Kouji KIMURA, Kazuhiko MOGI, Masaru KITSUREGAWA, Kazuo GODA, Yuto HAYAMIZU