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    • 1. 发明专利
    • ETCHING CONTROL METHOD
    • JPH07193056A
    • 1995-07-28
    • JP15832694
    • 1994-07-11
    • HITACHI LTD
    • MATSUBA IKUOMATSUMOTO KUNIAKI
    • C23F4/00H01L21/302H01L21/3065
    • PURPOSE:To make the cross section of etching orthogonal and to obtain the specified channel length by changing the composition of etching gas, which is supplied on the surface of a material to be processed within the processing period for one material layer to be etched. CONSTITUTION:When a target channel length 6 is given, a manipulated variable 12 for etching are determined with an optimum computing device 3. A controller 2 controls an etching manufacturing device 1 based on a manipulated variable 11 corresponding to the manipulated variable 12. Here, the entire etching period is divided into several sections with respect to an etching material layer. Plural kinds of gases in the different etching cross-sectional shapes are switched and used without the overlapping of the using periods one another for the respective sections. That is to say, the composition of the etching gas, which is supplied on the surface of the material to be processed is changed in the etching period for one material layer to be etched, and the etching is made to progress. Thus, the vertical etching is realized at the time point when the entire etching including over-etching is finished.
    • 3. 发明专利
    • REAL TIME DECISION MAKING SUPPORTING SYSTEM
    • JPH02224060A
    • 1990-09-06
    • JP4297089
    • 1989-02-27
    • HITACHI LTD
    • KOSAKA MITSUTAKAMIZUNO HIROTAKASASAKI TOSHIRONAOE HIDENORIMATSUMOTO KUNIAKI
    • G06Q50/00G06Q50/10G06Q50/34
    • PURPOSE:To obtain the latest information at the most convenient timing to a customer by providing a means for checking a customer's buying and selling condition in accordance with a market price state of a real time, and information the condition formation to a commodity handling person. CONSTITUTION:By a communication state management use frame 15, which work station is communicating with which work station can be decided. Therefore, a voice circuit of ISDN (Integrated Service Digital Network) couples each work station being in the course of communication. Also, as for an offer of decision making supporting information based on a real time data input, in accordance with the contents of the communication state management use frame 15, an information output control 12 gives information to both the work stations which are in the course of communication. An instantaneous decision property of a selling/buying timing detects the selling/buying timing by a decision making information processing 13 by using the data brought to a real time input, based on the contents of a selling/buying timing detecting condition knowledge base 14, and reflects a result of detection on a selling/buying condition formation flag of the communication state management use frame 15.
    • 4. 发明专利
    • INFORMATION PROCESSING SYSTEM
    • JPH0192838A
    • 1989-04-12
    • JP24783887
    • 1987-10-02
    • HITACHI LTD
    • TSURUTA SETSUOMATSUMOTO KUNIAKIYANAI SHIGENOBU
    • G06F9/44
    • PURPOSE:To improve the reliability of a knowledge base system by forming a rule to be inferred by utilizing an object and its object attaining purpose and means, and a nuclear knowledge part consisting of an object when the object and its object attaining purpose and means are described as objects. CONSTITUTION:An attribution part (slot) of a strategic object 5 is provided with goals to which the strategy can be applied and their priority, and lower goals necessary for the performance of the strategy and a performance order method part (method) is provided with a description part for methods necessary for the performance of strategy which can not be converted into more lower goal. A rule in a meta knowledge part selects strategy matched with a goal object 4, registers the selected strategy in the object of a knowledge part 15 and recurrently repeats development to lower goals. At the time of matching with strategy which can not be developed to a lower goal, the rule executes the method. Consequently, problems about the reduction of reliability due to a processing speed and relation among the rules can be resolved.
    • 9. 发明专利
    • PICTURE RETRIEVING SYSTEM
    • JPS63115275A
    • 1988-05-19
    • JP26066686
    • 1986-11-04
    • HITACHI LTD
    • SASAKI TOSHIROKOSAKA MITSUTAKAMATSUMOTO KUNIAKI
    • G06T7/00
    • PURPOSE:To quickly retrieve a picture having the same features as a desired picture from a large-capacity picture data base by using a feature quantity distribution function to select candidate pictures in the data base. CONSTITUTION:Branch points of a retrieval picture 1, for example, a pattern of fingerprint are selected to generate a secondary picture 2. Coordinate values of points in the picture 2 are written in a memory 4. A feature quantity extraction processing device 5 selects plural sets of coordinate values each of which consists of coordinate values of three points, and the number and lengths of three sides of each set are written in a feature quantity memory 6. A retrieval processing device 10 selects numbers of candidate pictures in accordance with contents of the memory 6, the feature quantity distribution function stored in a table memory 9, and picture numbers obtained from respective pictures in a picture data base 7 to retrieve the desired retrieval picture. Thus, the picture having the same features as the desired picture is quickly retrieved from the large-capacity picture data base.