Patents by Inventor Masayoshi Ojima

Masayoshi Ojima 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: 20260244182
    Abstract: A control system including a control program and an information program includes a management program, and a parameter set for the information program. The control program is a program that performs a scanning process (a process that controls a control object apparatus and has real-time characteristics) within a control cycle. The control program transmits, within the control cycle, a control instruction that is a signal representing a symbol associated with an activation object information program. The management program receives the control instruction, identifies the activation object information program corresponding to the symbol represented by the received control instruction, reads the parameter set for the activation object information program, generates an activation signal associated with the read parameter set, and outputs the generated activation signal to the activation object information program.
    Type: Application
    Filed: May 31, 2023
    Publication date: August 20, 2026
    Inventors: Toru YAZAKI, Hironori WAKANA, Masayoshi OJIMA, Masahiro YAMAZAKI, Kenji SHIMODA, Masayoshi SUDOH, Yuki MAENO, Mitsuru SOGA
  • Publication number: 20260211038
    Abstract: The present invention comprises: a diagnostic condition determination unit that determines a predetermined diagnostic condition on the basis of a diagnostic frequency, motor speed, and output voltage modulation rate for performing abnormality diagnosis; a control change unit that reduces the modulation rate on the basis of the determination result of the diagnostic condition determination unit; and an abnormality diagnosis unit that performs equipment abnormality diagnosis from a motor current on the basis of the determination result of the diagnostic condition determination unit.
    Type: Application
    Filed: October 26, 2023
    Publication date: July 23, 2026
    Inventors: Akihiro NAKAMURA, Satoru KANEKO, Masayoshi OJIMA
  • Publication number: 20260072425
    Abstract: In order to achieve high accuracy of detecting a sign of cooling performance deterioration, a sign detection system includes: a pre-processing unit acquiring operation data of a time series about a cooling target apparatus and extracting features from the operation data, the cooling target apparatus including a temperature rise source and a cooling unit cooling the temperature rise source, and a sign detection unit diagnosing cooling performance of the cooling unit, based on an output obtained by inputting the features extracted from the operation data for diagnosis to a sign detection model, the sign detection model being constructed using training data generated based on the features extracted from the operation data for training and a label indicating a state of the cooling performance.
    Type: Application
    Filed: August 24, 2023
    Publication date: March 12, 2026
    Inventors: Tohru NOJIRI, Masahiko TAKANO, Yuusuke NAKAGAWA, Masayoshi OJIMA
  • Patent number: 12566432
    Abstract: A data analysis unit includes a validity determination unit that calculates a determination factor for determining the validity of a data analysis process to determine the validity of the data analysis process, and displays the validity determination result on a display device.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: March 3, 2026
    Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    Inventors: Masayoshi Ojima, Masahiro Yamazaki, Kenji Sato, Yutaka Kobayashi, Hideyuki Gotou
  • Publication number: 20250384538
    Abstract: An encoder model and a decoder model, which are machine learning models, are used for inspection of the inspection target. The encoder model is a model in which inspection target data is input and an abnormality degree of the inspection target is output. The decoder model is a model in which an OK/NG value, which is a value indicating whether the inspection target is normal or abnormal, and a feature amount of data of the inspection target are input, and when the input OK/NG value indicates an abnormality, restored data of the inspection target based on the input feature amount is output.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 18, 2025
    Inventors: Hironori WAKANA, Atsushi NEO, Masahiro YAMAZAKI, Masayoshi OJIMA
  • Publication number: 20240303609
    Abstract: An equipment management device includes: an abnormality detection unit that detects abnormality in equipment on the basis of information obtained by measuring the state of the equipment; a maintenance management unit that manages maintenance of the equipment using the abnormality detection result as input, calculates maintenance costs, and plans a maintenance plan; an operation management unit that manages operation of the equipment using the abnormality detection result as input and plans an operation plan; an energy consumption change estimation unit that estimates change in the energy consumption of the equipment from the abnormality detection result; an energy management unit that manages the energy consumption of the equipment using the estimated change in energy consumption as input and calculates energy costs; and a costs comparison unit that compares the costs information calculated by the energy management unit and by the maintenance management unit.
    Type: Application
    Filed: November 4, 2021
    Publication date: September 12, 2024
    Inventors: Masayoshi OJIMA, Masahiro YAMAZAKI, Kenji SATO, Yutaka KOBAYASHI, Hideyuki GOTOU
  • Publication number: 20240004380
    Abstract: A data analysis unit includes a validity determination unit that calculates a determination factor for determining the validity of a data analysis process to determine the validity of the data analysis process, and displays the validity determination result on a display device.
    Type: Application
    Filed: August 24, 2021
    Publication date: January 4, 2024
    Inventors: Masayoshi OJIMA, Masahiro YAMAZAKI, Kenji SATO, Yutaka KOBAYASHI, Hideyuki GOTOU
  • Patent number: 11372048
    Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: June 28, 2022
    Assignee: HITACHI, LTD.
    Inventors: Akari Kubo, Masayoshi Ojima, Hiroaki Kojima
  • Publication number: 20210165045
    Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.
    Type: Application
    Filed: November 17, 2020
    Publication date: June 3, 2021
    Inventors: Akari KUBO, Masayoshi OJIMA, Hiroaki KOJIMA
  • Publication number: 20140042863
    Abstract: In a brushed direct current motor including a stator that is provided with 2×P magnetic poles (P is odd and greater than or equal to three), an armature core rotatably held with respect to the stator and includes P×N±2 teeth (N is an even and greater than or equal to four) in a circumferential direction, a commutator held so as to integrally rotate with the armature core and includes commutator segments, the number of the commutator segments being the same as that of the teeth, a winding wound around the teeth in a double-wave form, and two anode brushes and two cathode brushes arranged in sliding contact with the commutator, a width angle WB of each of the brushes in sliding contact with the commutator is set so as to satisfy a relation of “WB>WP+WI”.
    Type: Application
    Filed: July 12, 2013
    Publication date: February 13, 2014
    Inventors: Masayoshi OJIMA, Kohji MAKI
  • Patent number: 4771132
    Abstract: A cuprophthalocyanine type compound represented by formula [1] in the form of free acid ##STR1## (wherein D is a cuprophthalocyanine radical; B is an alkylene group of 2 to 4 carbon atoms or a phenylene group which may have one or two carboxyl group(s) or sulfonic acid group(s) as a substituent(s); R is a lower alkyl group or a lower alkoxy-lower alkyl group; X is a carboxyl group or a carbamoyl group and combines with the 3- or 4-position of the pyridine ring; l is 1, 2 or 3; m is 0, 1 or 2; n is 1 or 2; and the sum of l, m and n is 2, 3 or 4) as well as a method for dyeing cellulosic fiber materials using the said compounds.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: September 13, 1988
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Ryuzo Orita, Masayoshi Ojima, Shigeo Yamamura
  • Patent number: 4453945
    Abstract: The present invention relates to a process for dyeing cellulose fibers or its union fibers which is effected according to an exhaustion dyeing method using a reactive dye containing at least one s-triazinyl group having a group of the formula: ##STR1## wherein M represents a hydrogen or an alkali metal, in an aqueous dyeing bath having a pH in the range of 4 to 10 and a dyeing temperature in the range of 110.degree. C. to below 140.degree. C.
    Type: Grant
    Filed: April 19, 1983
    Date of Patent: June 12, 1984
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masakatsu Miyamoto, Yoshiharu Suzuki, Masayoshi Ojima, Yutaka Iizuka, Ryuzo Orita, Tadashi Matsuo