Patents by Inventor Munetoshi Unuma

Munetoshi Unuma 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: 20190171199
    Abstract: A diagnostic apparatus determines, at a reference time, whether a device is normal or abnormal, and in which operation state the device is at the time. A reference data creation unit repeats a process of storing sensor values acquired from the device while changing the operation state at the reference time in association with each of the determined operation states until there is no non-corresponding operation state with which the acquired sensor value is not yet associated. At a diagnosis time at which it is not known whether the device is normal or abnormal, an operation state and a sensor value of the device at the time is acquired. The stored sensor value associated with the acquired operation state is read to compare the sensor value acquired at the diagnosis time with the read sensor value to display a result of determination on whether the device is normal or abnormal.
    Type: Application
    Filed: September 2, 2016
    Publication date: June 6, 2019
    Inventors: Munetoshi UNUMA, Junsuke FUJIWARA
  • Patent number: 10235658
    Abstract: The maintenance management device 3 includes an error status diagnosis unit 11, a grace period estimation unit 14, a maintenance cost estimation unit 15, and a screen display unit 17. When the error status diagnosis unit 11 has diagnosed the occurrence of an anomaly, the grace period estimation unit 14 estimates a first grace period leading up to the occurrence of a failure. The maintenance cost estimation unit 15 estimates the cost of corrective maintenance incurred when the failure occurs after the elapse of the first grace period. The screen display unit 17 displays a combination of the first grace period and the cost of corrective maintenance. Alternatively, the grace period estimation unit 14 estimates a second grace period over which preventive maintenance may be postponed without a failure.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 19, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hideaki Suzuki, Kozo Nakamura, Shinya Yuda, Munetoshi Unuma, Junsuke Fujiwara, Takayuki Uchida, Katsuaki Tanaka, Mitsuo Aihara, Teruo Nakamura, Nobuyoshi Hirowatari, Hiroshi Ogura
  • Patent number: 10234360
    Abstract: A degradation cause estimation device is provided with a degradation detector for detecting the amount of degradation undergone by a device, a state observation device for detecting observation values for internal portions, values observed from outside, or device control and operation information, a degradation section detector for detecting a section undergoing degradation using the output values of the degradation detector, and a cause estimator for estimating the cause of the degradation using the device state observations for the degradation section, and outputs the cause for the degradation section.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 19, 2019
    Assignee: HITACHI, LTD.
    Inventors: Munetoshi Unuma, Takashi Saeki, Shinya Yuda
  • Publication number: 20190003928
    Abstract: A rotary machine diagnostic device has a current acquisition unit that acquires current from a sensor, which measures the driving current of a rotary machine driving a machine to be driven; a sampling unit that performs sampling of the acquired driving current; a frequency range conversion unit that converts data concerning the time range subjected to sampling into a frequency range; a sideband detection unit that sets the driving current as a carrier wave in the frequency range, and detects, as a sideband, the spectrum appearing on each side of the carrier wave subjected to amplitude modulation; and an abnormality detection unit that detects whether or not there are abnormalities in the rotary machine and the machine to be driven on the basis of the difference in frequency between the sideband frequency detected by the sideband detection unit and the frequency of the carrier wave.
    Type: Application
    Filed: March 8, 2016
    Publication date: January 3, 2019
    Inventors: Munetoshi UNUMA, Junsuke FUJIWARA
  • Patent number: 10073447
    Abstract: In industrial machine abnormality diagnosis, if the machine is diagnosed to have abnormality, then sensor data from the machine needs to be sent to a management center for causal analysis. However, since machines operated at a remote site cannot always communicate with a management center, it has been found that, in some cases, sensor data that has failed to be sent from a machine remains in the memory of the machine, resulting in lack of available memory capacity. In view of this, the present invention determines beforehand whether the diagnosed machine will run out of available memory capacity before the completion of sending the amount of sensor data required for causal analysis for the machine, and instructs a maintenance person to recover memory.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: September 11, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Takayuki Uchida, Hideaki Suzuki, Junsuke Fujiwara, Tomoaki Hiruta, Munetoshi Unuma
  • Publication number: 20180224840
    Abstract: Provided is an equipment life diagnostic device which assists in estimating operating conditions that are factors in determining the remaining life of equipment. This equipment life diagnostic device is provided with: an actual life consumption calculation unit which calculates the actual life consumption of equipment when the equipment is operating; an assumed life consumption setting unit which sets an assumed life consumption on the basis of the useful life of the equipment; a comparison unit which compares the actual life consumption calculated by the actual life consumption calculation unit with the assumed life consumption set by the assumed life consumption setting unit; and an output unit which, on the basis of the comparison result obtained from the comparison unit, displays information relating to the amount by which the actual life consumption is greater or less than the assumed life consumption.
    Type: Application
    Filed: September 24, 2015
    Publication date: August 9, 2018
    Inventors: Munetoshi UNUMA, Norio TAKEDA
  • Publication number: 20180024544
    Abstract: According to the present invention, the work status at an actual site is represented using a combination of component statuses. A degree of damage that takes into account the manner of use at the actual site is predicted by associating test data collected in a component status test. The objective of the present invention is to estimate, with high accuracy, the degree of damage to a device operating in an actual environment.
    Type: Application
    Filed: January 21, 2015
    Publication date: January 25, 2018
    Inventors: Munetoshi UNUMA, Yasuki KITA, Takashi SAEKI
  • Publication number: 20170212012
    Abstract: A degradation cause estimation device is provided with a degradation detector for detecting the amount of degradation undergone by a device, a state observation device for detecting observation values for internal portions, values observed from outside, or device control and operation information, a degradation section detector for detecting a section undergoing degradation using the output values of the degradation detector, and a cause estimator for estimating the cause of the degradation using the device state observations for the degradation section, and outputs the cause for the degradation section.
    Type: Application
    Filed: July 30, 2014
    Publication date: July 27, 2017
    Applicant: HITACHI, LTD.
    Inventors: Munetoshi UNUMA, Takashi SAEKI, Shinya YUDA
  • Publication number: 20160320262
    Abstract: An objective of the present invention is to associate condition information, such as (a) a location in a movement section at which fatigue occurred, (b) a type of work or operation during which fatigue occurred, and (c) a type of natural phenomenon experienced when fatigue occurred, with machine fatigue occurring when a machine is moved or placed in a work environment, natural environment, or other condition and to visualize and display the machine fatigue. To achieve this objective, this device for displaying the material fatigue of a machine is characterized by being provided with a means for observing stress variation in a time series using a sensor correlated with the stress variation or stress of a machine, a means for detecting stress variation in a single cycle, and a means for detecting the time when the stress variation occurred, and by outputting or displaying the stress variation value and time of occurrence.
    Type: Application
    Filed: March 3, 2014
    Publication date: November 3, 2016
    Inventors: Munetoshi UNUMA, Shinya YUDA, Takashi SAEKI, Hideaki SUZUKI
  • Publication number: 20160217398
    Abstract: An analysis device for time series data from an apparatus to be diagnosed according to the present invention is characterized by being provided with an accumulation device which accumulates sensor data, operation data, or control data, obtained from the apparatus to be diagnosed, while accumulating time information, an algorithm accumulation unit which accumulates algorithms for recognizing behavior of the apparatus to be diagnosed, a behavior recognition unit which recognizes behavior of the apparatus to be diagnosed by use a recognition algorithm, and a specification unit which specifies a behavioral item to be recognized, wherein: a behavior recognition algorithm corresponding to the specified behavioral item to be recognized is selected from the algorithm accumulation unit; sensor data, operation data, or control data to be used by the behavior recognition algorithm is selected from the accumulation device; the start and end times of a selected behavior are recognized by the behavior recognition unit; and
    Type: Application
    Filed: September 11, 2013
    Publication date: July 28, 2016
    Inventors: Munetoshi UNUMA, Hideaki SUZUKI, Tomoaki HIRUTA, Junsuke FUJIWARA, Takayuki UCHIDA, Shinya YUDA
  • Publication number: 20160209838
    Abstract: In industrial machine abnormality diagnosis, if the machine is diagnosed to have abnormality, then sensor data from the machine needs to be sent to a management center for causal analysis. However, since machines operated at a remote site cannot always communicate with a management center, it has been found that, in some cases, sensor data that has failed to be sent from a machine remains in the memory of the machine, resulting in lack of available memory capacity. In view of this, the present invention determines beforehand whether the diagnosed machine will run out of available memory capacity before the completion of sending the amount of sensor data required for causal analysis for the machine, and instructs a maintenance person to recover memory.
    Type: Application
    Filed: September 13, 2013
    Publication date: July 21, 2016
    Applicant: Hitachi, Ltd.
    Inventors: Takayuki UCHIDA, Hideaki SUZUKI, Junsuke FUJIWARA, Tomoaki HIRUTA, Munetoshi UNUMA
  • Publication number: 20150206104
    Abstract: The maintenance management device 3 includes an error status diagnosis unit 11, a grace period estimation unit 14, a maintenance cost estimation unit 15, and a screen display unit 17. When the error status diagnosis unit 11 has diagnosed the occurrence of an anomaly, the grace period estimation unit 14 estimates a first grace period leading up to the occurrence of a failure. The maintenance cost estimation unit 15 estimates the cost of corrective maintenance incurred when the failure occurs after the elapse of the first grace period. The screen display unit 17 displays a combination of the first grace period and the cost of corrective maintenance. Alternatively, the grace period estimation unit 14 estimates a second grace period over which preventive maintenance may be postponed without a failure.
    Type: Application
    Filed: July 10, 2013
    Publication date: July 23, 2015
    Inventors: Hideaki Suzuki, Kozo Nakamura, Shinya Yuda, Munetoshi Unuma, Junsuke Fujiwara, Takayuki Uchida, Katsuaki Tanaka, Mitsuo Aihara, Teruo Nakamura, Nobuyoshi Hirowatari, Hiroshi Ogura
  • Patent number: 8701979
    Abstract: In the cabling work aiding system, the RFID reader reads the RFID attached to at least one of the terminal, its terminal block, and cable member. A cabling work terminal device is connected to the RFID reader. The device is comprised of: a data base that records a template connection diagram containing the terminal-side RFID region constituted by RFID data as to the terminal and a cable-side RFID region constituted by RFID data as to the cable member; a relating part that relates the RFID read by the RFID reader to the terminal-side RIFD region and the cable-side RIFD region defined in the template connection diagram; a terminal-cable member correspondence table preparing part that prepares a correspondence table for leading correspondence between the RFID data as to the terminal and RFID data as to cable member from correspondence between the terminal-side RIFD region and the cable-side RFID related by the RFID read by the RFID reader.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: April 22, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Toshimi Yokota, Kenji Araki, Ryosuke Shigemi, Ryota Arai, Shinya Yuda, Munetoshi Unuma, Reika Kin
  • Patent number: 8395804
    Abstract: A RFID registration system is provided with a reader for reading an ID of an object to be identified by an RFID, an RFID existence position indicating the position of the RFID, and the RFID; an associating apparatus for associating the read RFID with the ID of the object to be identified by the RFID, a position information generation apparatus for obtaining the read position at the same time the position has been read, and a collation apparatus for obtaining an ID of the object to be identified by the RFID based on the read position and the RFID existence position. The RFID registration system can be avoid making the mistaken association between the RFID and the object to which the identification ID is attached.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: March 12, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Toshimi Yokota, Ryosuke Shigemi, Ryota Arai, Shinya Yuda, Munetoshi Unuma, Kozo Nakamura
  • Patent number: 8271693
    Abstract: A cable connection support apparatus has a structure in which a master apparatus and a slave apparatus are connected to both ends of a plurality of cables, and each apparatus is connected to each cable by a connecting terminal. The master apparatus and the slave apparatus are grounded. The master apparatus makes, for each connected cable, an inquiry about a position of a terminal of the slave apparatus to which the cable is connected, and inspects for inter-continuity, grounded connection, and unintentional disconnection. The connection destinations and inspection results are displayed on a display apparatus. Consequently, the connection condition for each cable wire in a cable can be confirmed.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: September 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Munetoshi Unuma, Shinya Yuda, Ryosuke Shigemi, Toshimi Yokota, Kozo Nakamura
  • Publication number: 20100332689
    Abstract: A cable connection support apparatus has a structure in which a master apparatus and a slave apparatus are connected to both ends of a plurality of cables, and each apparatus is connected to each cable by a connecting terminal. The master apparatus and the slave apparatus are grounded. The master apparatus makes, for each connected cable, an inquiry about a position of a terminal of the slave apparatus to which the cable is connected, and inspects for inter-continuity, grounded connection, and unintentional disconnection. The connection destinations and inspection results are displayed on a display apparatus. Consequently, the connection condition for each cable wire in a cable can be confirmed.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 30, 2010
    Inventors: Munetoshi UNUMA, Shinya Yuda, Ryosuke Shigemi, Toshimi Yokota, Kozo Nakamura
  • Publication number: 20100321736
    Abstract: A RFID registration system is provided with a reader for reading an ID of an object to be identified by an RFID, an RFID existence position indicating the position of the RFID, and the RFID; an associating apparatus for associating the read RFID with the ID of the object to be identified by the RFID, a position information generation apparatus for obtaining the read position at the same time the position has been read, and a collation apparatus for obtaining an ID of the object to be identified by the RFID based on the read position and the RFID existence position. The RFID registration system can be avoid making the mistaken association between the RFID and the object to which the identification ID is attached.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 23, 2010
    Inventors: Toshimi YOKOTA, Ryosuke Shigemi, Ryota Arai, Shinya Yuda, Munetoshi Unuma, Kozo Nakamura
  • Patent number: 7811203
    Abstract: A behavior of a walker is detected according to combination of detection of the walking behavior on a level and an altitude variation of the walker to more accurately detect the behavior of the walker. A burned calorie can be obtained according to the type of the walking behavior. An altitude variation can be obtained more accurately by integrating altitude variation only at sections with vertical movement during walking. A stride is estimated according to the behavior of the walker in consideration of the vertical movement. Obtained position and traveling direction are used for compensating values in inertial navigation system. The behavior with and without vertical movement is used in a walker navigator and a worker observing system including a worker terminal carried by the walker for detecting the behavior of the worker and a worker observing terminal for providing the detected position and behavior of the walker.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 12, 2010
    Assignees: Hitachi, Ltd., Hitachi Advanced Systems Corporation
    Inventors: Munetoshi Unuma, Fumitaka Otsu, Hideki Inoue, Shinobu Satou, So Higuchi
  • Publication number: 20100174674
    Abstract: An action recognition apparatus includes: an action detection unit for detecting an action of a subject to be recognized; an estimation processing unit for previously narrowing down action types of which actions of the subject is to be recognized; a selection processing unit for selecting a recognition method and a dictionary by referencing a recognition method/dictionary database, based on the action types narrowed down by the processing unit; and a recognition processing unit for performing an action recognition using the recognition method and the dictionary selected by the selection processing unit. The recognition processing unit performs an action recognition processing of information detected by the action detection unit, based on only the action types narrowed down by the estimation processing unit.
    Type: Application
    Filed: December 24, 2009
    Publication date: July 8, 2010
    Inventors: Munetoshi Unuma, Shinya Yuda, Kenji Akagi
  • Publication number: 20100163615
    Abstract: In the cabling work aiding system, the RFID reader reads the RFID attached to at least one of the terminal, its terminal block, and cable member. A cabling work terminal device is connected to the RFID reader. The device is comprised of: a data base that records a template connection diagram containing the terminal-side RFID region constituted by RFID data as to the terminal and a cable-side RFID region constituted by RFID data as to the cable member; a relating part that relates the RFID read by the RFID reader to the terminal-side RIFD region and the cable-side RIFD region defined in the template connection diagram; a terminal-cable member correspondence table preparing part that prepares a correspondence table for leading correspondence between the RFID data as to the terminal and RFID data as to cable member from correspondence between the terminal-side RIFD region and the cable-side RFID related by the RFID read by the RFID reader.
    Type: Application
    Filed: December 24, 2009
    Publication date: July 1, 2010
    Inventors: Toshimi YOKOTA, Kenji Araki, Ryosuke Shigemi, Ryota Arai, Shinya Yuda, Munetoshi Unuma, Reika Kin