Patents by Inventor Shoichi Masui

Shoichi Masui 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: 5764898
    Abstract: An office information system has a plurality of work stations connected via a network to mutually exchange electronic mail, each work station including a control information definition unit for defining control information representing what kind of processing can be performed on mails after reception, a processing log memory unit for storing log information of operations which have been performed on received mail, a control unit for guiding a receiver by referring to both the control information and log information, a task tracking instruction unit for inquiring into the processing status of mail, and a task tracking unit for reporting the status in response to such a tracking instruction. The system stores and interprets control information relating to the flow of an OA object on the network, which has been conventionally involved in the memory of an office worker, and guides the office worker to work to be done by the office worker.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: June 9, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Tsuji, Yoji Taniguchi, Hirohide Haga, Satoshi Wakayama, Michiko Oba, Toyozo Aoyama, Shoichi Masui
  • Patent number: 5412769
    Abstract: A method and apparatus is provided for retrieving time-series information so as to permit a user to readily retrieve non-numeric data such as character sequence information. The system provides for a prediction system to take into consideration such non-numeric data in association with retrieval result. In the system, a transition graph of the time-series data is displayed, a prediction result is determined based on determined time-series information, and a representation as to validity of a prediction to actual data is displayed on the graph. When a user enters a desired time point, news and event occurrences at that time point are retrieved from an event database and they are displayed in a designated area. Thus, the non-numeric information, such as news, which has occurred at a prediction miss point can be reflected to a prediction rule during a subsequent prediction.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: May 2, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuya Maruoka, Shoichi Masui
  • Patent number: 5353385
    Abstract: An inference method and an inference apparatus for use with a knowledge base system and knowledge base system supporting method and apparatus using the inference method and apparatus wherein there are employed rules each being comprised of a set of (1) a condition description part including a condition stipulating a plurality of states of a frame representing an object and constituting an object world of at least one pair of a slot and a value thereof and (2) an operation description part stipulating an operation to be executed when the condition is satisfied. For an inference processing, a rule for which a condition of its condition description part is satisfied is executed according to an operation described in the operation description part. A condition judging sequence is specified for satisfaction of a condition for each frame of the condition description part of the rule.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: October 4, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Shunichi Tano, Shoichi Masui, Toshihiko Nakano
  • Patent number: 5331545
    Abstract: A planning support system and process in a workstation having an operator interface, planning process feature, a data file server, and memory feature therein, characterized in storing a planner model having data indicating a plurality of planning actions in the data file server and indicating flow among the planning actions and having process times of the planning actions, and in processes executed by the planning process feature including setting an operator model on the basis of a planning request input through the operator interface, and including determining action of a first planning action to be executed according to the planner model on the basis of the operator model and for determining a second planning action to be executed following the first planning action, and including storing data needed for process of the second planning action into the memory feature until the process of the second planning action is started after process of the first planning action ends on the basis of the planner model.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: July 19, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yajima, Hideaki Shinohara, Shoichi Masui, Hiroshi Sugimoto
  • Patent number: 5212768
    Abstract: A method and apparatus for processing a knowledge which divides a knowledge base into at least two knowledge portions, that is, rule groups so as to permit the rule groups to be processed independently of one another, and selects, as a portion to be processed, only a corresponding divided knowledge portion based on characteristics of knowledge required for a knowledge processing in a scheduling problem which includes a large number of planning data to be processed and a plurality of restricting conditions, thereby enabling a highly efficient and high speed scheduling.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: May 18, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Rei Itsuki, Hiroshi Yajima, Shoichi Masui, Kikuo Yoshimura, Hiroko Tanabe
  • Patent number: 5179632
    Abstract: In an inference method using a rule, a rule condition part network and rule consequence part network are generated, an integral network of both the networks is used for inference. With this information method, the inference is performed at high speed by setting a shortcut arc so as to process the inference along the pattern matchable network portion. Further, use of the integral network of the rule condition and consequence parts enables not only forward and backward inferences but also a bidirectional inference with intimate couple between forward and backward inferences.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 12, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Shoichi Masui, Seiji Sakaguchi, Noriko Sasaki
  • Patent number: 5146537
    Abstract: A method for generating a network to cope with a conditional part or an IF part having a comparison between variable data and a logical sum between comparisons which appear in a Rete network adopted in a production system using the knowledge technology scheme. In association with an intra-node, a candidate node is disposed in another conditional clause referencing a variable, and a data which was previously accepted but which did not satisfy the conditions or a data most likely to pass through the network is stored in the candidate node in advance. For the intra-node in the object processing, the value of the candidate node is loaded for judging the conditions.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: September 8, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Shunichi Tano, Motohisa Funabashi, Shoichi Masui, Seiji Sakaguchi
  • Patent number: 4959799
    Abstract: In an inference machine having a knowledge set portion which stores therein a set of knowledge items such as rules, and an inference portion which interprets the rules for execution; priority level information items which set precedence degrees among the rules within the rule set are stored in a plurality of series with respect to standpoints of users, one series which meets the standpoint of a particular user is selected from among the plurality of stored series of priority level information items, and the rule of the highest precedence degree is selected on the basis of the selected series of priority level information items, with the result that the rule conforming to the standpoint of the particular user is selected and executed.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: September 25, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Yoshiura, Takeshi Chusho, Shoichi Masui, Hideo Ohata
  • Patent number: 4761746
    Abstract: A dynamic network reconstruction method in which the node processing information such as a node processing volume and a ratio at which a node is satisfied is collected for all nodes to maintain an efficient network even when the characteristic of an object described in a condition clause is changed in a Rete network of a production system using the knowledge technology and the network is changed based on the node processing information.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: August 2, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Shunichi Tano, Motohisa Funabashi, Shoichi Masui, Seiji Sakaguchi
  • Patent number: 4727487
    Abstract: A method of resource allocating to respective unit processes is disclosed which comprises, in order to allow the resource allocation based on experimental know-how of operation without assistance of a system operator, the steps of storing information of each unit processor including its priority, and names and functions of the resources required by that unit processor; storing information of each resource including an operation status and a process content of that resource; storing experimental know-how obtained in the operation of the system; and carrying out resource allocation to the unit processes in accordance with the stored experimental know-how when the operation status of the system corresponds to the stored experimental know-how and in the order of priorities of the unit processes as stored by taking reference to the stored information of each resource when the operation status of the system does not correspond to the stored experimental know-how, thereby improving the utilization efficiency of the
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: February 23, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Shoichi Masui, Shunichi Tano, Motohisa Funabashi, Koichi Haruna
  • Patent number: 4455619
    Abstract: A programming equipment is used for automatically constructing programs by selecting and interconnecting a plurality of previously prepared unit programs in accordance with instructions by an operator. A screen of a display unit is divided into a plurality of partial display areas. A memory has a plurality of unit storage areas, one for each partial display area, for storing unit program names and data flow specifications. The information of the respective area is displayed in block form on the display unit so that the operator can readily construct a process data flow by operating the input device while watching the display unit. The programming equipment reads out the area information from the areas in a predetermined sequence, and selects and interconnects the unit programs to construct the program corresponding to the process data flow.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: June 19, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Shoichi Masui, Mikihiko Oonari, Kunio Yamanaka, Masaoki Takaki