Patents by Inventor Masafumi Iwata

Masafumi Iwata 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: 20230141642
    Abstract: An assignment of an operator in accordance with the condition of a plant is dynamically performed. A work assignment device includes a work procedure derivation unit, a scheduling unit, a work assignment evaluation unit, and a work assignment determination unit. The work procedure derivation unit derives a work procedure on the basis of plant information on the plant. The scheduling unit selects a plurality of work assignment candidates each indicating an assignment of an operator to a procedure which is a constituent of the work procedure. The work assignment evaluation unit performs evaluation on each of the plurality of work assignment candidates. The work assignment determination unit determines a work assignment from the plurality of work assignment candidates on the basis of a result of the evaluation.
    Type: Application
    Filed: May 21, 2020
    Publication date: May 11, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Nami YAMAMOTO, Masafumi IWATA, Mitsunobu YOSHINAGA, Mami NARUSE
  • Publication number: 20220390911
    Abstract: An object of the present invention is to reduce the workload of an operator to attach classification information necessary for estimating operational know-how of a water plant to time-series data of measured values and control values.
    Type: Application
    Filed: November 20, 2019
    Publication date: December 8, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ken IMAI, Yohei UENO, Masafumi IWATA
  • Patent number: 9394139
    Abstract: In a multi-car elevator, when two adjacent cars travel in a like direction, an elevator controlling apparatus: determines a shortest stopping position that is a stopping position at which a leading car stops in a shortest stopping distance from its present position; determines an estimated stopping position that is a stopping position of a trailing car if the trailing car is stopped urgently when the trailing car deviates from a speed change path for stopping using decelerating control by the elevator controlling apparatus from its present position and approaches the leading car; and controls a separating distance between the leading car and the trailing car such that the estimated stopping position is before the shortest stopping position.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 19, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takuo Kugiya, Masayuki Kakio, Kiyoshi Funai, Masafumi Iwata
  • Patent number: 9108823
    Abstract: An elevator safety control device realizing suppression in increase in cost and labor hour of installation and maintenance without deteriorating safety of normal safety control functions even when a plurality of safety control functions are provided. The elevator safety control device includes an independence assurance unit assuring independence of a safety control function. The independence assurance unit assures independence of each of the safety control functions by monitoring whether or not the safety control function accesses a memory other than a permitted region. When the independence assurance unit detects an access to the memory other than the permitted region by a predetermined safety control function, the elevator safety control device stops a car.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: August 18, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Washio, Masafumi Iwata, Takuya Ishioka
  • Patent number: 9096410
    Abstract: A multi-car elevator control device for controlling an operation in such a manner that a rear car can stop away from a periphery of a fire floor. The multi-car elevator control device includes a running-enabled section calculator for calculating, as a running-enabled section, a range of a floor in which a stop can be carried out to open a door without a collision with a front car which stops, a fire floor information acquiring part for acquiring fire floor information, an in-fire stop prohibition section calculator for calculating, based on the fire floor information, an in-fire stop prohibition section for prohibiting the stop of the car, and a running permission deciding part for deciding a running permission of an elevator by referring to the running-enabled section and the in-fire stop prohibition section.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 4, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Masafumi Iwata
  • Patent number: 9079752
    Abstract: According to the present invention, when a parking floor is set as a remote-hall-operating-panel-installed floor, the parking floor can be canceled. As a result of this, during the movement of a passenger from a remote hall operating panel to an elevator hall, it is possible to prevent a car from being on standby at a remote-hall-operating-panel-installed floor. Therefore, because a car to which a remote hall registration has been assigned can effectively use the moving time of the passenger and hence it is possible to improve the operation efficiency of the whole group supervisory control system. Furthermore, it is possible to reduce useless runs and hence to reduce power consumption.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 14, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Sakurako Tokura, Naohiko Suzuki, Yoshimasa Koba, Masafumi Iwata
  • Patent number: 8839914
    Abstract: An elevator system capable of an efficient evacuation using an elevator in case of a fire, and capable of confirming an evacuee remaining status in a case that an evacuation operation using the elevator is discontinued. An evacuation-call response-order setting section sets a priority order of a response to an evacuation special call registered in an evacuation special call registration section, based on fire occurrence information received by a fire situation reception section. A responding floor is selected based on the priority order. The evacuation operation running section controls an operation of the elevator so as to direct a car to the responding floor selected in this manner. In a case that the evacuation operation availability determination section determines that the evacuation operation is not available, the evacuation operation terminating section causes an evacuation special call remaining floor display section to display a remaining evacuation special call registration floor.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: September 23, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masafumi Iwata, Masahiko Konishi, Kiyoji Kawai, Toshiyuki Kodera, Akihisa Miyajima
  • Patent number: 8646581
    Abstract: An elevator group management system capable of appropriately performing car assignment processing without leaving any one behind and enabling a passenger to recognize a car to board without fail. A fellow passenger group assignment section assigns fellow passenger groups to respective passengers based on the contents of hall call registration for each floor received from a hall operation panel, and causes the hall operation panel that has sent the hall call registration to display names of the assigned fellow passenger. A fellow passenger group car assignment section executes, on the fellow passenger groups assigned by the fellow passenger group assignment section, car assignment processing of assigning any of a plurality of cars as an assigned car and, in a case of determining the assigned car, provides car control sections with a passenger guide command containing at least combination information on this assigned car that has been determined and the fellow passenger group.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: February 11, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masafumi Iwata, Naohiko Suzuki, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
  • Patent number: 8602172
    Abstract: A car-based running power computing mechanism computes running power values of each car in both cases including cases before and after a newly generated hall call is assigned. A car-based regenerative power computing mechanism computes regenerative power values of each car in the both cases. A car-based future running power computing mechanism computes future running power values of each car in the both cases. A car-based future regenerative power computing mechanism computes future regenerative power values of each car in the both cases. A car-based assigned total evaluation index computing mechanism obtains an in-travel power consumption value and an in-future-travel power consumption value based on the running power values, regenerative power values, future running power values, future regenerative power values and the like, to thereby compute assigned total evaluation indices of each car in the both cases.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
  • Publication number: 20130299282
    Abstract: In a multi-car elevator, when two adjacent cars travel in a like direction, an elevator controlling apparatus: determines a shortest stopping position that is a stopping position at which a leading car stops in a shortest stopping distance from its present position; determines an estimated stopping position that is a stopping position of a trailing car if the trailing car is stopped urgently when the trailing car deviates from a speed change path for stopping using decelerating control by the elevator controlling apparatus from its present position and approaches the leading car; and controls a separating distance between the leading car and the trailing car such that the estimated stopping position is before the shortest stopping position.
    Type: Application
    Filed: April 8, 2011
    Publication date: November 14, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takuo Kugiya, Masayuki Kakio, Kiyoshi Funai, Masafumi Iwata
  • Patent number: 8567569
    Abstract: An elevator group management system improving operational efficiency in consideration of a situation change that has occurred after a destination floor registration in a hall. An assigned car review mechanism executes assigned car review processing in units of review registration information sets each including at least one piece of provisionally assigned car registration information managed by a registered destination floor hall call management section during a review period. After ending the assigned car review processing, the assigned car review mechanism modifies the contents of the provisionally assigned car registration information in the registered destination floor hall call management section based on the contents of the review registration information set after modification. That is, the assigned car review mechanism newly registers the provisionally assigned car registration information after review and erases the provisionally assigned car registration information before review at the same time.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: October 29, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
  • Patent number: 8505692
    Abstract: Provided is an elevator system which can perform an optimum assignment suited to the operation condition of elevators and can appropriately notify a user of accurate information. For this purpose, there are provided a call registration device which registers a destination call before boarding and a notification device which provides elevator information. Normally, immediately after registration of a destination call, the notification device provides information on an assigned car. On the other hand, when a prescribed assignment review condition is met, immediately after registration of a destination call, the notification device provides information to the effect that the registration has been accepted, thereafter the assignment of the elevator is reviewed, and the notification device provides information on an assigned car when the elevator responds to the destination call.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: August 13, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Sakurako Tokura, Yoshimasa Koba, Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Masafumi Iwata, Naohiko Suzuki, Shingo Kobori
  • Patent number: 8493230
    Abstract: Provided is an elevator evacuation supporting system which can appropriately guide people living in a building to the hall of an elevator in the case of occurrence of a disaster.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: July 23, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shiro Hikita, Kiyoji Kawai, Masahiko Konishi, Masafumi Iwata
  • Publication number: 20120292136
    Abstract: An elevator safety control device realizing suppression in increase in cost and labor hour of installation and maintenance without deteriorating safety of normal safety control functions even when a plurality of safety control functions are provided. The elevator safety control device includes an independence assurance unit assuring independence of a safety control function. The independence assurance unit assures independence of each of the safety control functions by monitoring whether or not the safety control function accesses a memory other than a permitted region. When the independence assurance unit detects an access to the memory other than the permitted region by a predetermined safety control function, the elevator safety control device stops a car.
    Type: Application
    Filed: March 12, 2010
    Publication date: November 22, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazunori Washio, Masafumi Iwata, Takuya Ishioka
  • Publication number: 20120279804
    Abstract: A multi-car elevator control device for controlling an operation in such a manner that a rear car can stop away from a periphery of a fire floor. The multi-car elevator control device includes a running-enabled section calculator for calculating, as a running-enabled section, a range of a floor in which a stop can be carried out to open a door without a collision with a front car which stops, a fire floor information acquiring part for acquiring fire floor information, an in-fire stop prohibition section calculator for calculating, based on the fire floor information, an in-fire stop prohibition section for prohibiting the stop of the car, and a running permission deciding part for deciding a running permission of an elevator by referring to the running-enabled section and the in-fire stop prohibition section.
    Type: Application
    Filed: December 20, 2010
    Publication date: November 8, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventor: Masafumi Iwata
  • Patent number: 8245819
    Abstract: An evacuation support apparatus for an elevator causes an elevator to perform an evacuation operation for conveying people stranded in a building including a plurality of floors to an evacuation floor in an emergency. Further, the evacuation support apparatus for an elevator includes rescue floor setting means for setting the floor determined based on a predetermined condition as a rescue floor, the floor being selected from the plurality of floors, and response floor setting means for registering a call only for the floor on which a call input device for specific persons is operated in a case of the evacuation operation as the call for an evacuation response floor, the call input device for specific persons and a call input device for general persons being provided on each of the plurality of floors. The elevator includes a common car which moves in a reciprocating manner between the rescue floor and the evacuation floor in the case of the evacuation operation.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: August 21, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shiro Hikita, Kiyoji Kawai, Masahiko Konishi, Masafumi Iwata
  • Publication number: 20120168261
    Abstract: According to the present invention, when a parking floor is set as a remote-hall-operating-panel-installed floor, the parking floor can be canceled. As a result of this, during the movement of a passenger from a remote hall operating panel to an elevator hall, it is possible to prevent a car from being on standby at a remote-hall-operating-panel-installed floor. Therefore, because a car to which a remote hall registration has been assigned can effectively use the moving time of the passenger and hence it is possible to improve the operation efficiency of the whole group supervisory control system. Furthermore, it is possible to reduce useless runs and hence to reduce power consumption.
    Type: Application
    Filed: November 19, 2009
    Publication date: July 5, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Sakurako Tokura, Naohiko Suzuki, Yoshimasa Koba, Masafumi Iwata
  • Publication number: 20110272221
    Abstract: An elevator system capable of an efficient evacuation using an elevator in case of a fire, and capable of confirming an evacuee remaining status in a case that an evacuation operation using the elevator is discontinued. An evacuation-call response-order setting section sets a priority order of a response to an evacuation special call registered in an evacuation special call registration section, based on fire occurrence information received by a fire situation reception section. A responding floor is selected based on the priority order. The evacuation operation running section controls an operation of the elevator so as to direct a car to the responding floor selected in this manner. In a case that the evacuation operation availability determination section determines that the evacuation operation is not available, the evacuation operation terminating section causes an evacuation special call remaining floor display section to display a remaining evacuation special call registration floor.
    Type: Application
    Filed: January 18, 2010
    Publication date: November 10, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Masafumi Iwata, Masahiko Konishi, Kiyoji Kawai, Toshiyuki Kodera, Akihisa Miyajima
  • Patent number: 8006807
    Abstract: An elevator group control apparatus includes a parameter calculating unit for determining a weighting factor for an item to be evaluated, which is calculated from a running distance estimated by an estimation arithmetic operation unit by taking into consideration a relation between a running distance of an elevator and a passenger average waiting time, and an evaluation arithmetic operation unit for calculating a total evaluated value from an item to be evaluated of a passenger waiting time, an item to be evaluated of the running distance, and the weighting factor determined by the parameter calculating unit. The elevator group control apparatus selects an elevator whose total evaluated value is the best from among the plurality of elevators, and assigns a hall call to the selected elevator.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shingo Kobori, Masafumi Iwata, Naohiko Suzuki, Shiro Hikita
  • Publication number: 20110198160
    Abstract: A car-based running power computing mechanism computes running power values of each car in both cases including cases before and after a newly generated hall call is assigned. A car-based regenerative power computing mechanism computes regenerative power values of each car in the both cases. A car-based future running power computing mechanism computes future running power values of each car in the both cases. A car-based future regenerative power computing mechanism computes future regenerative power values of each car in the both cases. A car-based assigned total evaluation index computing mechanism obtains an in-travel power consumption value and an in-future-travel power consumption value based on the running power values, regenerative power values, future running power values, future regenerative power values and the like, to thereby compute assigned total evaluation indices of each car in the both cases.
    Type: Application
    Filed: September 18, 2009
    Publication date: August 18, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami