Patents by Inventor Yasuko Fukuzawa
Yasuko Fukuzawa 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).
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Publication number: 20040117552Abstract: A heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems. An I/O subsystem A for open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up the data from at least a disk connected to the I/O subsystem B in a MT library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: ApplicationFiled: September 17, 2003Publication date: June 17, 2004Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Patent number: 6721841Abstract: A heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems. An I/O subsystem A for open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up the data from at least a disk connected to the I/O subsystem B in a MT library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: GrantFiled: December 24, 2002Date of Patent: April 13, 2004Assignee: Hitachi, Ltd.Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Publication number: 20040064610Abstract: A heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems. An I/O subsystem A for open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up the data from at least a disk connected to the I/O subsystem B in a MT library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: ApplicationFiled: September 17, 2003Publication date: April 1, 2004Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Patent number: 6631471Abstract: A relation between the data process contents in an IC card chip and the consumption current of the IC card chip is reduced. Prior to executing an input data process of the IC card chip, the input data is transformed to thereby reduce the relation between the process data and the consumption current of the IC card chip. After the transforming process, the transformed data is untransformed to obtain a correct process result.Type: GrantFiled: December 10, 1999Date of Patent: October 7, 2003Assignee: Hitachi, Ltd.Inventors: Masaru Ohki, Yasuko Fukuzawa, Susumu Okuhara, Masahiro Kaminaga
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Patent number: 6615354Abstract: A relation between the data process contents in an IC card chip and the consumption current of the IC card chip is reduced. Prior to executing an input data process of the IC card chip, the input data is transformed to thereby reduce the relation between the process data and the consumption current of the IC card chip. After the transforming process, the transformed data is untransformed to obtain a correct process result.Type: GrantFiled: March 20, 2000Date of Patent: September 2, 2003Assignee: Hitachi, Ltd.Inventors: Masaru Ohki, Yasuko Fukuzawa, Susumu Okuhara, Masahiro Kaminaga
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Publication number: 20030105853Abstract: In a handling support method for supporting handling of an object, a distributed system including at least one attribute information management server for managing attribute information of an object in correspondence with identification information given to the object, at least one identification information management server for managing the attribute information management server in correspondence with the identification information, and at least one supporting server for supporting handling of the object in accordance with the attribute information is connected to a user terminal over a network. Then, based on identification information obtained by the user terminal, the identification information management server specifies an address of the attribute information management server for managing attribute information of the object to which the identification information is given.Type: ApplicationFiled: November 27, 2002Publication date: June 5, 2003Inventors: Hajime Morito, Yasuko Fukuzawa, Kazuo Takaragi, Shyojiro Asai
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Publication number: 20030088720Abstract: A heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems. An I/O subsystem A for open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up the data from at least a disk connected to the I/O subsystem B in a MT library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: ApplicationFiled: December 24, 2002Publication date: May 8, 2003Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Patent number: 6529976Abstract: In a heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems, an I/O subsystem A for an open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up data from at least one disk connected to the I/O subsystem B in a magnetic tape library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: GrantFiled: June 15, 2000Date of Patent: March 4, 2003Assignee: Hitachi, Ltd.Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Patent number: 6408075Abstract: An IC card having a storage memory including a program storage unit for storing a program and a data storage unit for storing data and a central processing unit for executing a predetermined process in accordance with the program to process the data, the program including one or more data process units each having a process instruction for giving an execution instruction to the central processing unit, wherein a data process order is randomly exchanged and a dummy process is added to thereby reduce the dependency of consumption current of an IC chip upon the data process.Type: GrantFiled: March 14, 2000Date of Patent: June 18, 2002Assignee: Hitachi, Ltd.Inventors: Masaru Ohki, Yasuko Fukuzawa, Susumu Okuhara, Masahiro Kaminaga
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Publication number: 20020052877Abstract: The technology includes the steps of: associating material-object identification code identifying each individual material object with material-object information representing information about material object identified by identification code and storing identification code and material-object information in material-object information database in each of business categories; sending code and information stored in database in each business category; integrating items of information having same code with each other among codes and items of information received from database in each business category to generate integrated material-object information, associating identification code with integrated material-object information identified by code and storing identification code and integrated material-object information in integrated database; requesting to send integrated material-object information associated with given identification code; reading requested integrated material-object information from integratType: ApplicationFiled: August 17, 2001Publication date: May 2, 2002Inventors: Chikashi Okamoto, Kazuo Takaragi, Yasuko Fukuzawa, Hideki Tokuyama, Mitsuo Usami
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Publication number: 20020004767Abstract: An identification code management method and management system includes that the issue and distribution of an ID code having a message authentication code are managed thereby to efficiently and reliably manage a material object using the ID code. An electronic circuit chip with an ID code having a message authentication code stored in a read-only area is used as an identification tag. The information at an ID code order receiving terminal and an identification tag production factory terminal are consolidated and collectively managed at an ID code management terminal. Thereby, the ID code management terminal is inquired of highly confidential information or requested to process the information as required so that an ID code utilization terminal is not required to store the same information.Type: ApplicationFiled: March 9, 2001Publication date: January 10, 2002Inventors: Chikashi Okamoto, Kazuo Takaragi, Yasuko Fukuzawa
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Patent number: 6098129Abstract: In a heterogeneous computer system, a heterogeneous input/output system and a data back-up method for the systems, an I/O subsystem A for an open system and an I/O subsystem B for a mainframe are connected by a communication unit. In order to back up data from at least one disk connected to the I/O subsystem B in a magnetic tape library system and in order to permit the mainframe to access the data in the I/O subsystem B, the I/O subsystem A includes a table for assigning a vacant memory address in a local subsystem to the memory of the I/O subsystem for an open system. A request of variable-length record format received from the mainframe is converted into a fixed-length record format for the subsystem B. The disk designated according to the table is accessed, and the data thus obtained is sent to the mainframe and backed up in the back-up system.Type: GrantFiled: April 1, 1998Date of Patent: August 1, 2000Assignee: Hitachi, Ltd.Inventors: Yasuko Fukuzawa, Akira Yamamoto, Toshio Nakano
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Patent number: 5351294Abstract: A method and apparatus for carrying out limited encipherment broadcast by generating a cipher key obtained from destination information added to service information are provided. An information service station transmits to each receiving station a random number, destination information for designating a destination station, and enciphered data obtained by enciphering service information by a common key generating by using the random number and destination information. An IC card at each receiving station which is provided in advance with a key generating function from the information service station, generates the common key by using the received random number and destination information only when it is confirmed from the destination information that the receiving station has a data redeption right, and deciphers the enciphered data by using the common key to obtain the original service information.Type: GrantFiled: March 23, 1993Date of Patent: September 27, 1994Assignees: Hitachi, Ltd., Hitachi Chubu Software Ltd.Inventors: Hiroshi Matsumoto, Kazuo Takaragi, Yasuko Fukuzawa
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Patent number: 5218638Abstract: A method and apparatus for carrying out limited encipherment broadcast by generating a cipher key obtained from destination information added to service information are provided. An information service station transmits to each receiving station a random number, destination information for designating a destination station, and enciphered data obtained by enciphering service information by a common key generating by using the random number and destination information. An IC card at each receiving station which is provided in advance with a key generating function from the information service station, generates the common key by using the received random number and destination information only when it is confirmed from the destination information that the receiving station has a data reception right, and deciphers the enciphered data by using the common key to obtain the original service information.Type: GrantFiled: December 5, 1991Date of Patent: June 8, 1993Assignees: Hitachi Ltd., Hitachi Chubu Software, Ltd.Inventors: Hiroshi Matsumoto, Kazuo Takaragi, Yasuko Fukuzawa
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Patent number: 5117458Abstract: An information service system including a plurality of receiving stations and information service facilities. The information service facilities include a memory circuit which stores beforehand a distribution destination information set of receiving station identifiers allocated to the receiving stations, distribution destination information set being disposed in a predetermined order within the memory circuit, a memory circuit for storing a plurality of information to be supplied to receiving stations, an enciphering circuit for generating an enciphering key for optical receiving stations within a group which performs broadcast communications, and enciphering the service information with the enciphering key, and a circuit for transmitting the enciphered service information and service destination codes of service destination receiving stations encoded from the distribution destination information set, through broadcast communications.Type: GrantFiled: October 31, 1990Date of Patent: May 26, 1992Assignee: Hitachi, Ltd.Inventors: Kazuo Takaragi, Ryoichi Sasaki, Tsutomu Nakamura, Minoru Koizumi, Yasuko Fukuzawa, Kenji Kataoka