Patents by Inventor Seiji Maeda

Seiji Maeda 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: 20060218558
    Abstract: A real-time system includes a plurality of processors for executing jobs of a plurality of periodic tasks each having predetermined period, assigns each job in a period of each of the tasks to the processors, calculates distribution of execution times during which jobs assigned are executed on the processors, determines, based on the distribution, whether each of the jobs finishes by a deadline within the period, determines that scheduling is impossible, when one of the jobs is determined not to finish by the deadline, determines whether the distribution of the execution times of the jobs each determined to finish by the deadline converge, and determines that scheduling is possible, when the distribution converge.
    Type: Application
    Filed: September 23, 2005
    Publication date: September 28, 2006
    Inventors: Osamu Torii, Seiji Maeda
  • Publication number: 20060213254
    Abstract: A gas sensor made up of a sensor element and a first and a second hollow cylindrical porcelain insulators covering the sensor element. The first porcelain insulator is laid on the second porcelain insulator in alignment within a body of the gas sensor. A base end surface of the first porcelain insulator is placed in abutment with a top end surface of the second porcelain insulator. At least one of the base end surface of the top end surface has a ground flat area which forms an interface between the first and second porcelain insulators without micro-contacts resulting in concentration of local stress which would lead to breakage of the first or second porcelain insulator when subjected to physical loads.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 28, 2006
    Applicant: DENSO CORPORATION
    Inventors: Yasuyuki Satou, Seiji Maeda
  • Patent number: 7103604
    Abstract: A scheme for constructing a database in a user system, which can automatically store those portions of the structured documents which contain important contents without exerting a burden on the user is disclosed. A structured document provided by a server device is obtained according to a document request made by the user system, where each structured document has a structure represented by tags in each structured document. Then, at least one important portion is automatically extracted from the structured document by utilizing the structure of the structured document according to prescribed extraction criteria specified in advance, and the extracted important portion is stored into the database, while the obtained structured document is transferred to the user system.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: September 5, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiji Maeda, Tatsunori Kanai, Toshiki Kizu, Takeshi Yokokawa, Hiroshi Yao, Osamu Torii, Hisako Tanaka
  • Patent number: 7072983
    Abstract: A scheme for systematically registering meta-data with respect to various types of individual data so as to enable sophisticated retrieval or application program construction assistance utilizing the meta-data in a data server is disclosed. A data-type of registering data to be registered into a data server that registers and manages data and meta-data for data, and one procedure corresponding to the detected data type is selected from a plurality of procedures provided in correspondence to respective data types and stored in advance, each procedure having a program code for gene rating the meta-data for data according to a corresponding data type. Then, the meta-data for the registering data are generated by executing the program code of the selected procedure, and the generated meta-data are registered in relation to the registering data.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: July 4, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsunori Kanai, Toshiki Kizu, Seiji Maeda, Takeshi Yokokawa, Hiroshi Yao, Osamu Torii, Hirokuni Yano, Hisako Tanaka
  • Publication number: 20060070073
    Abstract: According to an aspect of the present invention, heat emissions of processors are level among the processors, and it is possible to suppress occurrence of stop of process due to overheating. The control IC assigns tasks to the processors, and thereafter rectifies an assignment result such that temperatures of the processors become almost level among the processors, on the basis of the temperatures of the processors obtained by temperature sensors. This structure enables level heat emissions among the processors, and suppresses occurrence of stop of process due to overheating.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 30, 2006
    Inventors: Seiji Maeda, Tatsunori Kanai
  • Publication number: 20060070074
    Abstract: According to an aspect of the present invention, the processor temperatures can be leveled among processors, thereby suppressing the occurrence of stop of processing due to overheating. For example, on the basis of the temperatures of the processors sensed by temperature sensors, the control IC assigns the processor whose temperature is the lowest to the task whose heat emission is the highest. This makes it possible to level the processor temperatures among processors and suppress occurrence of stop of processing due to overheating.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 30, 2006
    Inventors: Seiji Maeda, Tatsunori Kanai
  • Publication number: 20060004966
    Abstract: A preload controller for controlling a bus access device that reads out data from a main memory via a bus and transfers the readout data to a temporary memory, including a first acquiring device to acquire access hint information which represents a data access interval to the main memory, a second acquiring device to acquire system information which represents a transfer delay time in transfer of data via the bus by the bus access device, a determining device to determine a preload unit count based on the data access interval represented by the access hint information and the transfer delay time represented by the system information, and a management device to instruct the bus access device to read out data for the preload unit count from the main memory and to transfer the readout data to the temporary memory ahead of a data access of the data.
    Type: Application
    Filed: June 14, 2005
    Publication date: January 5, 2006
    Inventors: Seiji Maeda, Yusuke Shirota
  • Publication number: 20060004780
    Abstract: A scheme for constructing a database in a user system, which can automatically store those portions of the structured documents which contain important contents without exerting a burden on the user is disclosed. A structured document provided by a server device is obtained according to a document request made by the user system, where each structured document has a structure represented by tags in each structured document. Then, at least one important portion is automatically extracted from the structured document by utilizing the structure of the structured document according to prescribed extraction criteria specified in advance, and the extracted important portion is stored into the database, while the obtained structured document is transferred to the user system.
    Type: Application
    Filed: September 8, 2005
    Publication date: January 5, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Seiji Maeda, Tatsunori Kanai, Toshiki Kizu, Takeshi Yokokawa, Hiroshi Yao, Osamu Torii, Hisako Tanaka
  • Publication number: 20050283139
    Abstract: According to the present invention, a surgical therapeutic instrument includes an insertion unit, a treating unit that is arranged at one end of the insertion unit to be extended in the extending direction at a predetermined angle to the axial direction of the insertion unit, and an operation unit that is arranged at the other end of the insertion unit. The operation unit includes a rotating operation unit to rotate the treating unit, and an opening/closing operation unit to open/close the treating unit. The treating unit includes two pinching members having planar portions, is rotatable in accordance with the rotating operation, and can move at least one of the two pinching members in the direction substantially orthogonal to the plane of the planar portion in accordance with the opening/closing operation.
    Type: Application
    Filed: July 22, 2005
    Publication date: December 22, 2005
    Applicant: Olympus Corporation
    Inventors: Shuhei Iizuka, Takahiro Kogasaka, Kazunori Taniguchi, Toru Nagase, Nobuyoshi Yazawa, Hideyuki Kasahara, Seiji Maeda, Kazuo Banju, Akira Murata
  • Patent number: 6973458
    Abstract: A scheme for constructing a database in a user system, which can automatically store those portions of the structured documents which contain important contents without exerting a burden on the user is disclosed. A structured document provided by a server device is obtained according to a document request made by the user system, where each structured document has a structure represented by tags in each structured document. Then, at least one important portion is automatically extracted from the structured document by utilizing the structure of the structured document according to prescribed extraction criteria specified in advance, and the extracted important portion is stored into the database, while the obtained structured document is transferred to the user system.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: December 6, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiji Maeda, Tatsunori Kanai, Toshiki Kizu, Takeshi Yokokawa, Hiroshi Yao, Osamu Torii, Hisako Tanaka
  • Publication number: 20050229177
    Abstract: Schedulability determination method of determining whether real-time scheduling of tasks is possible using processors, includes calculating Lk and ?i=1 . . . NMi*Uk,i, (1?k,i?N;k,i:integer) where Lk corresponds to task-k, Mi represents number of the one or more processors simultaneously used by task-i, Uk,i corresponds to task-k and task-i, and N represents number of tasks, and determining that real-time scheduling of tasks is possible using processors, if tasks all satisfy conditions, ?i=1 . . .
    Type: Application
    Filed: March 22, 2005
    Publication date: October 13, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Osamu Torii, Seiji Maeda
  • Publication number: 20050149572
    Abstract: A scheme for systematically registering meta-data with respect to various types of individual data so as to enable sophisticated retrieval or application program construction assistance utilizing the meta-data in a data server is disclosed. A data type of registering data to be registered into a data server that registers and manages data and meta-data for data, and one procedure corresponding to the detected data type is selected from a plurality of procedures provided in correspondence to respective data types and stored in advance, each procedure having a program code for generating the meta-data for data according to a corresponding data type. Then, the meta-data for the registering data are generated by executing the program code of the selected procedure, and the generated meta-data are registered in relation to the registering data.
    Type: Application
    Filed: February 9, 2005
    Publication date: July 7, 2005
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tatsunori Kanai, Toshiki Kizu, Seiji Maeda, Takeshi Yokokawa, Hiroshi Yao, Osamu Torii, Hirokuni Yano, Hisako Tanaka
  • Publication number: 20050132157
    Abstract: A storage device for which restoration of data is possible without the need for excess equipment includes mirrored storage units for online use and for backup, and is capable of performing a data backup while continuing input and output of data. The storage device is further provided with an update data storage unit for storing update data. According to the storage device, even if the information stored in a storage unit for online use is not capable of being read because of a fault in the storage unit, it is possible to restore the data in the backup storage unit to the state that existed in the storage unit for online use immediately before the fault by applying the update data to the information stored in the storage device for backup.
    Type: Application
    Filed: February 1, 2005
    Publication date: June 16, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Seiji Maeda, Hirokuni Yano, Toshio Shirakihara, Kiyoko Sato, Nobuo Sakiyama, Takuya Hayashi
  • Publication number: 20050108715
    Abstract: An information processing system performs a plurality of tasks within a specific time interval. The system includes a bus, a plurality of processors which transfer data via the bus, and a unit for performing a scheduling operation of determining execution start timing of each of the tasks and at least one the processors which executes the tasks, based on cost information concerning a time required to perform each of the tasks and bandwidth information concerning a data transfer bandwidth required by each of the tasks, to perform the tasks within the specific time interval without overlapping execution terms of at least two tasks of the tasks, the two tasks requiring data transfer bandwidths not less than those of the others of the tasks.
    Type: Application
    Filed: September 8, 2004
    Publication date: May 19, 2005
    Inventors: Tatsunori Kanai, Seiji Maeda, Hirokuni Yano, Kenichiro Yoshii
  • Patent number: 6883112
    Abstract: A storage device for which restoration of data is possible without the need for excess equipment includes mirrored storage units for online use and for backup, and is capable of performing a data backup while continuing input and output of data. The storage device is further provided with an update data storage unit for storing update data. According to the storage device, even if the information stored in a storage unit for online use is not capable of being read because of a fault in the storage unit, it is possible to restore the data in the backup storage unit to the state that existed in the storage unit for online use immediately before the fault by applying the update data to the information stored in the storage device for backup.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: April 19, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiji Maeda, Hirokuni Yano, Toshio Shirakihara, Kiyoko Sato, Nobuo Sakiyama, Takuya Hayashi
  • Publication number: 20050066330
    Abstract: An information processing system performs a real-time operation periodically at specific time intervals. The system includes a unit for performing a scheduling operation of assigning the real-time operation to a processor to perform the real-time operation periodically at the specific time intervals by the processor, a unit for computing a ratio of an execution time of the real-time operation to be performed by the processor at a first operating speed, based on the specific time intervals and cost information concerning a time required to perform the real-time operation by the processor at the first operating speed, and a unit for performing an operating speed control operation to operate the processor at a second operating speed that is lower than the first operating speed, the second operating speed being determined based on the computed ratio.
    Type: Application
    Filed: August 2, 2004
    Publication date: March 24, 2005
    Inventors: Tatsunori Kanai, Seiji Maeda, Hirokuni Yano, Kenichiro Yoshii
  • Publication number: 20050060709
    Abstract: An information processing system periodically performs a real-time operation including a plurality of chained tasks. The system includes a plurality of processors, a unit for dividing the chained tasks into a first task group and a second task group based on a relationship in order of execution among the tasks, the second task group being executed after the first task group, and a unit for performing a scheduling operation of periodically assigning each of the first task group and the second task group to at least one of the processors to periodically execute the first task group at regular time intervals and periodically execute the second task group at the regular time intervals with a one-period delay relative to the first task group.
    Type: Application
    Filed: July 21, 2004
    Publication date: March 17, 2005
    Inventors: Tatsunori Kanai, Seiji Maeda, Hirokuni Yano, Kenichiro Yoshii
  • Publication number: 20050003276
    Abstract: The present invention provides a lithium polymer cell having high ion conductivity and solid strength high enough to be used as a solid electrolyte for electro-chemical element. The present invention relates to a lithium polymer cell sandwiching between a positive electrode and a negative electrode a solid electrolyte formed from a cured film formed of a lithium ion conductive composition comprising one or more curable oligomers, one or more ethylenically unsaturated monomers and electrolytic salts, and a manufacturing method thereof.
    Type: Application
    Filed: December 26, 2002
    Publication date: January 6, 2005
    Inventors: Tetsuo Sakai, Seiji Maeda, Yoichiro Saito
  • Publication number: 20040268083
    Abstract: An information processing system includes a first processor having a first local memory, a second processor having a second local memory, and a third processor having a third local memory. The system further includes a unit which maps one of the second and third local memories in part of an effective address space of a first thread to be executed by the first processor, the one of the second and third local memories being the local memory of a corresponding one of the second and third processors, which executes a second thread interacting with the first thread, and a unit which changes the one of the second and third local memories which is to be mapped in part of the effective address space to the other when one of the second and third processor that executes the second thread is changed to the other.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 30, 2004
    Inventors: Tatsunori Kanai, Seiji Maeda, Kenichiro Yoshii
  • Publication number: 20040268353
    Abstract: An information processing system performs a real-time operation including a combination of a plurality of tasks. The system includes a plurality of processors, a unit which stores structural description information and a plurality of programs describing procedures corresponding to the tasks, the structural description information indicating a relationship in input/output between the programs and including cost information concerning time required for executing each of the programs, a unit which determines an execution start timing and execution term of each of a plurality of threads for execution of the programs based on the structural description information, and a unit which performs a scheduling operation of assigning the threads to at least one of the processors according to a result of the determining.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 30, 2004
    Inventors: Tatsunori Kanai, Seiji Maeda, Kenichiro Yoshii, Hirokuni Yano