Patents by Inventor Keiko Tanigawa

Keiko Tanigawa 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: 11886459
    Abstract: A data management system includes a processor. An estimated ETL level mapping processing unit is operated on the processor to estimate existence of unregistered ETL that is ETL not registered in a repository, to calculate a degree of similarity based on matching between an existing data model and retained data, and to extract a column to be a candidate based on the degree of similarity. The existence of the unregistered ETL is estimated by estimating the presence or absence of connectedness in the ETLs on the basis of correspondence between input data and output data in ETLs by using an execution ETL log relevant to an execution history of the ETL.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 30, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Keiko Tanigawa, Toshihiko Kashiyama, Jumpei Okoshi
  • Publication number: 20230418826
    Abstract: A computer system for searching for a candidate for an environment in which an object is to be deployed, the computer system is coupled to a plurality of infrastructure systems each of which provides the environment. The computer system receives a search request including an environmental requirement being a condition required for the environment in which the object is to be deployed and a constraint being a condition to be complied with in deployment of the object; executes first environment search processing for searching for the environment that satisfies the constraint and the environmental requirement; changes the environmental requirement in a case where the environment in which the object is deployable does not exist; and executes second environment search processing for searching for the environment that satisfies the constraint and the changed environmental requirement.
    Type: Application
    Filed: March 8, 2023
    Publication date: December 28, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Keiko TANIGAWA, Yohsuke ISHII, Yuya ISODA
  • Publication number: 20230297699
    Abstract: An access right management apparatus 1000, includes: a processor and a memory; and an indirect modification part 104 configured to: when first access right information is modified with a first modification content, the first access right information indicating an access right necessary for a first system to access an application, identify based on a predetermined database, second access right information indicating an access right necessary for a second system to access the application and having a relationship with the first access right information; convert the first modification content of the first access right information to a second modification content corresponding to the second access right information; and modify the identified second access right information with the second modification content.
    Type: Application
    Filed: September 2, 2022
    Publication date: September 21, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Yuya ISODA, Yohsuke ISHII, Keiko TANIGAWA
  • Patent number: 11681820
    Abstract: The computer system is connected to a DB that stores data acquired from a production system in which a plurality of machines operate, and includes a generation unit and a data search unit. The DB stores operation data and environment data. The generation unit generates, by analyzing schedule information including a production schedule of the plurality of products, first owner information for storing first access control data including an owner, the machines, and a first access period set based on operation time, and generates, based on the first owner information, second owner information for storing second access control data including the owner, a type of the environment data, and a second access period set based on the first access period. The data search unit controls accesses to the DB based on the first owner information and the second owner information.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: June 20, 2023
    Assignee: HITACHI, LTD.
    Inventors: Nobukazu Kondo, Keiko Tanigawa, Kentaro Kakui
  • Publication number: 20220391404
    Abstract: A data management system includes a processor. An estimated ETL level mapping processing unit is operated on the processor to estimate existence of unregistered ETL that is ETL not registered in a repository, to calculate a degree of similarity based on matching between an existing data model and retained data, and to extract a column to be a candidate based on the degree of similarity. The existence of the unregistered ETL is estimated by estimating the presence or absence of connectedness in the ETLs on the basis of correspondence between input data and output data in ETLs by using an execution ETL log relevant to an execution history of the ETL.
    Type: Application
    Filed: March 14, 2022
    Publication date: December 8, 2022
    Inventors: Keiko TANIGAWA, Toshihiko KASHIYAMA, Jumpei OKOSHI
  • Publication number: 20210232697
    Abstract: The computer system is connected to a DB that stores data acquired from a production system in which a plurality of machines operate, and includes a generation unit and a data search unit. The DB stores operation data and environment data. The generation unit generates, by analyzing schedule information including a production schedule of the plurality of products, first owner information for storing first access control data including an owner, the machines, and a first access period set based on operation time, and generates, based on the first owner information, second owner information for storing second access control data including the owner, a type of the environment data, and a second access period set based on the first access period. The data search unit controls accesses to the DB based on the first owner information and the second owner information.
    Type: Application
    Filed: September 15, 2020
    Publication date: July 29, 2021
    Inventors: Nobukazu KONDO, Keiko TANIGAWA, Kentaro KAKUI
  • Publication number: 20160036632
    Abstract: In a computer system connected to a client, the client has a system configuration including a first storage that stores data and a first computer, the computer system has a second storage that stores data and a second computer that processes data stored in the second storage and a management server, the management server acquires an identifier of an application processed in the first computer, data utilized for executing the application and stored in the first storage and information of the system configuration of the client from the client, the system configuration is composed in the second storage and the second computer based upon the acquired information of the system configuration, the application specified by the identifier is operated in the composed system configuration using the acquired data, and a result of the operation is output to the client.
    Type: Application
    Filed: October 3, 2013
    Publication date: February 4, 2016
    Inventors: Keiko Tanigawa, Toshio Otani, Toru Tanaka
  • Publication number: 20140143391
    Abstract: A computer system suited for migration of a virtual server between a plurality of physical servers that do not share a storage apparatus via a network is provided. The present invention is a computer system configured to: couple a plurality of computers together, in each of which a plurality of physical servers and a storage apparatus are directly connected within the same chassis, by directly connecting the storage apparatuses of the plurality of computers: and further have a management computer manage the plurality of computers. When the management computer selects another physical server other than a first physical server in a first computer among the plurality of computers as a migration destination of a virtual server, which operates in the first physical server in the first computer, it judges whether the other physical server exists in the first computer or exists in another computer different from the first computer among the plurality of computers.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Keiko Tanigawa, Keisuke Hatasaki
  • Patent number: 8095264
    Abstract: A diagnostic equipment coupled to a vehicle network makes an inquiry about internal information, e.g., yes or no whether there is a logging-available memory area, with respect to each of a plurality of ECUs, and only to any of the ECUs making a response of yes, e.g., having such a memory area, a notification is made when some defect is observed. The internal information is then gathered from the ECU, and in response to an inquiry about the internal information coming from the diagnostic equipment, the ECU forwards back information about yes or no for logging thereto. When the ECU is available for logging, log data that has been periodically accumulated is forwarded back as a response with respect to a retrieval request therefor from the diagnostic equipment.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 10, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Keiko Tanigawa, Akitoshi Shimura
  • Publication number: 20090299566
    Abstract: A diagnostic equipment coupled to a vehicle network makes an inquiry about internal information, e.g., yes or no whether there is a logging-available memory area, with respect to each of a plurality of ECUs, and only to any of the ECUs making a response of yes, e.g., having such a memory area, a notification is made when some defect is observed. The internal information is then gathered from the ECU, and in response to an inquiry about the internal information coming from the diagnostic equipment, the ECU forwards back information about yes or no for logging thereto. When the ECU is available for logging, log data that has been periodically accumulated is forwarded back as a response with respect to a retrieval request therefor from the diagnostic equipment.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Inventors: Keiko TANIGAWA, Akitoshi SHIMURA
  • Patent number: 7606859
    Abstract: A multimedia communication system having at least one terminals capable of multimedia communication, a user information storage for storing the information on the users of the terminals, a terminal information storage for storing the information on the terminals and a media information storage for storing the occupied/unoccupied status of one or more communication media capable of being used at the terminals, wherein the occupied/unoccupied status of all the communication media for a designated user are read from the media information storage, the dynamic situation of the user is read from the user information storage, and the occupied/unoccupied status thus read is changed in accordance with one or more rules including the conditions for the dynamic situation and the contents of change in the occupied/unoccupied status.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: October 20, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Kenta Shiga, Junji Fukuzawa, Keiko Tanigawa, Masashi Suzuki
  • Patent number: 7508822
    Abstract: The usage of communication systems is improved. An IM server 4 manages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM server 4 manages a connection between each of the IM clients participating the chat and the IM server 4, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP server 5 manages a connection between each of the IM clients participating the chat and an MD server 6, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 24, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga, Toru Hoshi
  • Publication number: 20080069315
    Abstract: The usage of communication systems is improved. An IM server 4 manages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM server 4 manages a connection between each of the IM clients participating the chat and the IM server 4, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP server 5 manages a connection between each of the IM clients participating the chat and an MD server 6, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.
    Type: Application
    Filed: May 14, 2007
    Publication date: March 20, 2008
    Inventors: Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga, Toru Hoshi
  • Patent number: 7318110
    Abstract: The storage device is provided with a synchronization controller to realize synchronization control of information for the other storage devices when information is updated. This synchronization controller is further provided with a synchronization level registration table for registration and management of synchronization levels for every class of information and a synchronization interval registration table for registration and management of synchronization intervals of information pieces for the synchronization levels. Consequently, a load of communications may be alleviated by realizing common sharing/synchronization of information pieces among different systems and particularly by realizing loose common sharing/synchronization of information pieces depending on the characteristics of the information.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: January 8, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kazuma Yumoto, Keiko Tanigawa, Yasunori Kaneda
  • Patent number: 7233589
    Abstract: The usage of communication systems is improved. An IM server 4 manages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM server 4 manages a connection between each of the IM clients participating the chat and the IM server 4, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP server 5 manages a connection between each of the IM clients participating the chat and an MD server 6, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: June 19, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga, Toru Hoshi
  • Patent number: 7145901
    Abstract: By adopting a method of requesting a band for each plurality of calls, or a method of requesting a band independently of origination or termination of a call, a method of reducing the frequency of origination of a call is provided. A first aspect may provide that a gate keeper requests security and release of a band not every call, but collectively for a plurality of calls, and the security and the release of a band are requested at frequency less than that of origination or termination of calls. A second aspect may provide that an estimated value of a time series change in necessary band is previously set in a gate keeper, and security and release of a band required for communication are requested depending on a time, but independently of origination and termination of a call.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: December 5, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Koji Tsukada, Tohru Hoshi, Keiko Tanigawa
  • Publication number: 20040103149
    Abstract: The conventional multi-user audio communication system and an IM system each require a server for managing a conference or a terminal having functions of the server. Thus, an environment without a server cannot be implemented. A specific terminal broadcasts an online or offline command for indicating an online or offline state with respect to an ad hoc network to all other terminals. In an online state, resources such as buffers used by a plurality of channels consenting in advance are allocated, a participation-expressing command including a number of a channel, which the terminal itself desires to participate in, is multicasted to a pre-assigned address, and audio as well as IM data is transmitted to the address at the same time. If other terminals are participating in the channel, a plurality of pieces of audio and IM data is received from the other terminals. In the case of audio data, a plurality of pieces of audio data are mixed and the mixed data is reproduced.
    Type: Application
    Filed: August 29, 2003
    Publication date: May 27, 2004
    Inventors: Keiko Tanigawa, Junji Fukuzawa, Kenta Shiga
  • Publication number: 20040083282
    Abstract: A multimedia communication system having at least one terminals capable of multimedia communication, a user information storage for storing the information on the users of the terminals, a terminal information storage for storing the information on the terminals and a media information storage for storing the occupied/unoccupied status of one or more communication media capable of being used at the terminals, wherein the occupied/unoccupied status of all the communication media for a designated user are read from the media information storage, the dynamic situation of the user is read from the user information storage, and the occupied/unoccupied status thus read is changed in accordance with one or more rules including the conditions for the dynamic situation and the contents of change in the occupied/unoccupied status.
    Type: Application
    Filed: March 14, 2003
    Publication date: April 29, 2004
    Inventors: Kenta Shiga, Junji Fukuzawa, Keiko Tanigawa, Masashi Suzuki
  • Publication number: 20040024909
    Abstract: The storage device is provided with a synchronization controller to realize synchronization control of information for the other storage devices when information is updated. This synchronization controller is further provided with a synchronization level registration table for registration and management of synchronization levels for every class of information and a synchronization interval registration table for registration and management of synchronization intervals of information pieces for the synchronization levels. Consequently, a load of communications may be alleviated by realizing common sharing/synchronization of information pieces among different systems and particularly by realizing loose common sharing/synchronization of information pieces depending on the characteristics of the information.
    Type: Application
    Filed: August 23, 2002
    Publication date: February 5, 2004
    Inventors: Kazuma Yumoto, Keiko Tanigawa, Yasunori Kaneda
  • Publication number: 20040001480
    Abstract: The usage of communication systems is improved. An IM server 4 manages presence information regarding each of IM clients and usable media and user information such that each of the IM clients can obtain these kinds of information. In order to perform text chatting, the IM server 4 manages a connection between each of the IM clients participating the chat and the IM server 4, merges text from each of the participating IM clients and distributes the result to each of the participating IM clients. In order to perform voice chatting, an AP server 5 manages a connection between each of the IM clients participating the chat and an MD server 6, mixes voice from each of the participating IM clients except for a focused IM client and distributes the result to the focused participating IM clients. This processing is performed for each of the participating IM clients.
    Type: Application
    Filed: August 30, 2002
    Publication date: January 1, 2004
    Inventors: Keiko Tanigawa, Kazuma Yumoto, Kenta Shiga, Toru Hoshi