Patents by Inventor Nobuyuki Fujikura

Nobuyuki Fujikura 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: 9157336
    Abstract: A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 13, 2015
    Assignee: JP STEEL PLANTECH CO.
    Inventors: Keiji Wakahara, Nobuyuki Fujikura, Masanari Yamazaki, Masayuki Watanabe, Yoshinori Okuyama
  • Publication number: 20120320941
    Abstract: A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths.
    Type: Application
    Filed: April 19, 2011
    Publication date: December 20, 2012
    Applicant: JP STEEL PLANTECH CO
    Inventors: Keiji Wakahara, Nobuyuki Fujikura, Masanari Yamazaki, Masayuki Watanabe, Yoshinori Okuyama
  • Patent number: 5682466
    Abstract: An information processing apparatus, which is easy to design and has functions of high speed processing, learning, and so on, includes a plurality of memories for storing sets of previously known input data (called response pattern data) and correct output data corresponding thereto; a comparator for providing input data supplied in actual operations to the plurality of sets and comparing the input data with the response pattern data in each set; an evaluation unit for evaluating the distance (degree of similarity) between the input data and the response pattern data; and a generator for generating final outputs by composing the evaluation result for each set and the output data in that set, for example, using a method which calculates weighted average values based on the evaluated distances.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: October 28, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Akira Maeda, Motohisa Funabashi, Hiromasa Yamaoka, Nobuyuki Fujikura, Mikio Yoda, Mitsuo Yanagi
  • Patent number: 5638492
    Abstract: An information processing apparatus is capable of achieving high-level functions such as high-speed processing and learning without requiring a complex algorithm based on, for example, knowledge processing. A plurality of sets of known input data and correct output data corresponding thereto are beforehand stored. The stored input data is called response pattern data. Data actually inputted in the system operation is supplied to the plural sets of data. For each set of data, the input data is compared with the response pattern data to evaluate a distance (degree of similarity) therebetween. Results of evaluations for the respective sets of data are combined with the associated output data, for example, according to weighted average values on the basis of the evaluated distance, thereby generating final outputs.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: June 10, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Akira Maeda, Motohisa Funabashi, Hiromasa Yamaoka, Nobuyuki Fujikura, Mikio Yoda, Mitsuo Yanagi, Toshihide Ichimori
  • Patent number: 4901313
    Abstract: In order to improve the throughput of an a-point to multi-points information system having a master station for transmitting an a-point to multi-points frame and a plurality of slave stations for receiving the a-point to multi-points frame and to insure reliability of received information, the master station comprises a unit for detecting that the number of slave stations which are in abnormal receiving of an a-point to multi-points frame from the master station exceeds a predetermined value, and retransmits the a-point to multi-points frame received abnormally during the detection.
    Type: Grant
    Filed: July 27, 1988
    Date of Patent: February 13, 1990
    Assignees: Hitachi, Ltd., Hitachi Microcomputer Engineering Ltd.
    Inventors: Nobuyuki Fujikura, Hiroshi Morita, Yoshihisa Ikeda, Ryoichi Sasaki
  • Patent number: 4723762
    Abstract: A device for sealing the skirt of a converter waste gas recovery system is disclosed, which comprises a primary sealing apparatus adapted to enclose the converter mouth and mounted along the skirt along a lower edge thereof, a secondary sealing apparatus adapted to encircle about the primary sealing apparatus, and primary hydraulic cylinder for vertically moving the skirt together with the primary sealing apparatus, and a secondary hydraulic cylinder for vertically moving the secondary sealing apparatus independently of the primary sealing apparatus. The primary sealing apparatus is intended to provide sealing for the gap between the skirt and the converter mouth. The secondary sealing apparatus serves to insure sealing when the primary sealing apparatus has failed to provide proper sealing because of adhered slag along the rim of the mouth from prolonged operations.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: February 9, 1988
    Assignees: Nippon Steel Corporation, Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Toyo-o Murata, Masao Kimoto, Mazumi Nishikawa, Nobuyuki Fujikura
  • Patent number: 4641237
    Abstract: A bus control method and apparatus wherein buses each coupling a pair of processors are serially arranged rectilinearly into a cluster bus which is arranged in one direction and wherein a plurality of such cluster buses are arranged in a plurality of directions as a lattice pattern to form a multiprocessor system. Each of the processors supplies the respective cluster buses with send request and priority processing level signals and receives a receipt acknowledge signal from another processor on the same cluster bus, thereby to occupy said cluster bus, so as to transfer data to the other processor on the cluster bus.
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: February 3, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masaharu Yabushita, Makoto Nohmi, Nobuyuki Fujikura, Shoji Miyamoto, Hirokazu Ihara
  • Patent number: 4244051
    Abstract: Two logical values of a 3-valued code correspond to the "1" and "0" values of a binary code. When the same binary logical value occurs in successive digits of data to be transmitted, the corresponding 3-valued logical value and a third logical value are transmitted alternately. When the different binary logical value occurs in the data alternately, the corresponding 3-valued logical values are transmitted alternately.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: January 6, 1981
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Fujikura, Makoto Noomi, Hirokazu Ihara
  • Patent number: 4066230
    Abstract: In an automatic operating system for a vehicle where the velocity of the vehicle is controlled so as to follow a selected one of a plurality of target velocity patterns, the system comprising first apparatus for predicting a braking or a powering force corresponding to a first target velocity pattern, second apparatus for predicting a braking or a powering force corresponding to a second target velocity pattern and third apparatus for selecting either one of the braking or powering force from the first and second apparatus in response to values of the braking or powering force therefrom.
    Type: Grant
    Filed: March 31, 1976
    Date of Patent: January 3, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Nohmi, Nobuyuki Fujikura, Chiaki Ueda, Eiichi Toyota