Patents by Inventor Taisei Fujimoto
Taisei Fujimoto 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: 10624231Abstract: A controller, capable of maintaining proper humidity for a machine, and including a housing; a sensor in the housing; a fan that blows air in the housing; a window openable and closable relative to an opening in the housing; a tank with an opening part at a neighboring position of the opening and storing a liquid containing water; a pipe having a part extending in the housing, and connected to the tank to pass the liquid; and a humidity controller that controls humidity in the housing. If humidity sensed by the sensor is lower than a predetermined value, the humidity controller opens the window, and operates the fan to take moisture from the tank into the housing. If the humidity is higher than the predetermined value, the humidity controller closes the window, and operates the fan to feed an atmosphere in the housing toward the part of the pipe.Type: GrantFiled: December 12, 2018Date of Patent: April 14, 2020Assignee: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Patent number: 10503151Abstract: A control panel of a machining tool includes a measurement unit measuring a temperature and a humidity involved with an atmosphere inside the control panel, an adjustment unit adjusting the temperature and the humidity, and an atmosphere control unit controlling an atmosphere inside the control panel by controlling the adjustment unit. Since the atmosphere control unit receives electric power supplied from a system separated from a power supply supplying electric power to the machining tool, it is possible to protect various electronic devices inside the control panel by measuring and adjusting the atmosphere inside the control panel even when the machining tool power supply is not turned on.Type: GrantFiled: September 16, 2015Date of Patent: December 10, 2019Assignee: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Patent number: 10447029Abstract: Disclosed is a connection circuit capable of detecting erroneous wiring of an interconnect device in order to prevent a safety fuse from being melted and quickly perform an overcurrent protection in the event of erroneous wiring or the like. In this connection circuit of the interconnect device, a preliminary wiring check operation is performed when a power control unit receives a power-on signal. It is detected whether or not a power line and a ground line are short-circuited in the preliminary wiring check operation. When the power line and the ground line are not short-circuited, an operation instruction is output from the power control unit to a power unit. As a result, power is turned on after it is checked whether or not the power line and the ground line are short-circuited in advance. Therefore, it is possible to prevent the safety fuse from being melted.Type: GrantFiled: February 14, 2018Date of Patent: October 15, 2019Assignee: Fanuc CorporationInventor: Taisei Fujimoto
-
Publication number: 20190200478Abstract: To provide a controller for a machine capable of always maintaining a proper humidity. A controller for a machine comprises: a housing; a humidity acquisition unit housed in the housing; a fan attached to the housing and blowing air in the housing; a first window formed to be openable and closable relative to a first opening formed at the housing; a tank with an opening part located at a neighboring position of the first opening and storing a liquid containing water; a pipe having a part extending in the housing, and being connected to the tank to let the liquid pass through; and a control unit that controls a humidity in the housing. If a humidity acquired by the humidity acquisition unit is lower than a predetermined value, the control unit opens the first window, and operates the fan so as to take moisture generated from the tank into the housing.Type: ApplicationFiled: December 12, 2018Publication date: June 27, 2019Applicant: FANUC CORPORATIONInventor: Taisei FUJIMOTO
-
Patent number: 10198016Abstract: A load control apparatus includes: a relay control unit that outputs an open or close command; a power supply adjustment unit; a contact resistance measurement unit that measures a resistance value of the relay; and an adjustment command generation unit that outputs to the power supply adjustment unit an increase command that causes a current flowing between the contacts of the relay or a voltage applied therebetween to be a value greater than a steady-state value when the resistance value becomes greater than or equal to a predetermined threshold value, and outputs to the power supply adjustment unit a release command that returns the current flowing between the contacts of the relay or the voltage applied therebetween to the steady-state value when, after the increase command is outputted, the resistance value becomes smaller than the predetermined threshold value and the close command is received from the relay control unit.Type: GrantFiled: October 25, 2016Date of Patent: February 5, 2019Assignee: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Patent number: 10110157Abstract: A machine tool includes a drive unit driving a tool for machining a workpiece, and a control unit controlling the drive unit. The machine tool further includes an abnormality determining unit that determines whether machining can be continued, based on operation information of the drive unit, and a power failure detection unit that switches the power source of the control unit from a normal power supply unit to an emergency power supply unit if power failure is detected, and switches the power source from the emergency power supply unit to the normal power supply unit if recovery of power supply is detected after power failure. The control unit stops operation of the drive unit when power failure is detected, and thereafter, if recovery of power supply is detected, and the abnormality determining unit determines that machining can be continued, the control unit drives the drive unit, thereby automatically resuming machining.Type: GrantFiled: March 16, 2017Date of Patent: October 23, 2018Assignee: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Publication number: 20180248358Abstract: Disclosed is a connection circuit capable of detecting erroneous wiring of an interconnect device in order to prevent a safety fuse from being melted and quickly perform an overcurrent protection in the event of erroneous wiring or the like. In this connection circuit of the interconnect device, a preliminary wiring check operation is performed when a power control unit receives a power-on signal. It is detected whether or not a power line and a ground line are short-circuited in the preliminary wiring check operation. When the power line and the ground line are not short-circuited, an operation instruction is output from the power control unit to a power unit. As a result, power is turned on after it is checked whether or not the power line and the ground line are short-circuited in advance. Therefore, it is possible to prevent the safety fuse from being melted.Type: ApplicationFiled: February 14, 2018Publication date: August 30, 2018Applicant: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Publication number: 20170272027Abstract: A machine tool includes a drive unit driving a tool for machining a workpiece, and a control unit controlling the drive unit. The machine tool further includes an abnormality determining unit that determines whether machining can be continued, based on operation information of the drive unit, and a power failure detection unit that switches the power source of the control unit from a normal power supply unit to an emergency power supply unit if power failure is detected, and switches the power source from the emergency power supply unit to the normal power supply unit if recovery of power supply is detected after power failure. The control unit stops operation of the drive unit when power failure is detected, and thereafter, if recovery of power supply is detected, and the abnormality determining unit determines that machining can be continued, the control unit drives the drive unit, thereby automatically resuming machining.Type: ApplicationFiled: March 16, 2017Publication date: September 21, 2017Applicant: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Patent number: 9753456Abstract: A machine tool including a cooling fan measures an input power source voltage to the machine tool and an input current to the cooling fan. If the measured current value is outside a predetermined current value range corresponding to the measured voltage value, the machine determines that the rotational speed of the cooling fan has decreased.Type: GrantFiled: February 1, 2016Date of Patent: September 5, 2017Assignee: FANUC CORPORATIONInventors: Yoshinori Hoshino, Taisei Fujimoto
-
Patent number: 9720397Abstract: When warm-up operation is started, a machine tool acquires an atmospheric temperature around the machine tool and selects a warm-up operation program on the basis of the acquired atmospheric temperature. A warm-up operation command suitable for the atmospheric temperature is given to the control unit according to the selected warm-up operation program. A movable unit of the machine tool can be thereby controlled, and optimum warm-up operation for the atmospheric temperature can be eventually performed.Type: GrantFiled: May 13, 2015Date of Patent: August 1, 2017Assignee: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Publication number: 20170115681Abstract: A load control apparatus includes: a relay control unit that outputs an open or close command; a power supply adjustment unit; a contact resistance measurement unit that measures a resistance value of the relay; and an adjustment command generation unit that outputs to the power supply adjustment unit an increase command that causes a current flowing between the contacts of the relay or a voltage applied therebetween to be a value greater than a steady-state value when the resistance value becomes greater than or equal to a predetermined threshold value, and outputs to the power supply adjustment unit a release command that returns the current flowing between the contacts of the relay or the voltage applied therebetween to the steady-state value when, after the increase command is outputted, the resistance value becomes smaller than the predetermined threshold value and the close command is received from the relay control unit.Type: ApplicationFiled: October 25, 2016Publication date: April 27, 2017Applicant: FANUC CORPORATIONInventor: Taisei Fujimoto
-
Patent number: 9466902Abstract: A detector comprising a circuit board, a board-side connector which is mounted on the circuit board, and a flexible cable which has a terminal part inserted in the board-side connector, wherein a reinforcement member of the flexible cable is attached to an end part of the flexible cable which includes the terminal part, and the reinforcement member includes a foldable part which allows local bending of the end part of the flexible cable.Type: GrantFiled: February 10, 2015Date of Patent: October 11, 2016Assignee: Fanuc CorporationInventors: Taisei Fujimoto, Hirofumi Kikuchi
-
Publication number: 20160223576Abstract: A machine tool including a cooling fan measures an input power source voltage to the machine tool and an input current to the cooling fan. If the measured current value is outside a predetermined current value range corresponding to the measured voltage value, the machine determines that the rotational speed of the cooling fan has decreased.Type: ApplicationFiled: February 1, 2016Publication date: August 4, 2016Inventors: Yoshinori HOSHINO, Taisei FUJIMOTO
-
Publication number: 20160089758Abstract: A control panel of a machining tool includes a measurement unit measuring a temperature and a humidity involved with an atmosphere inside the control panel, an adjustment unit adjusting the temperature and the humidity, and an atmosphere control unit controlling an atmosphere inside the control panel by controlling the adjustment unit. Since the atmosphere control unit receives electric power supplied from a system separated from a power supply supplying electric power to the machining tool, it is possible to protect various electronic devices inside the control panel by measuring and adjusting the atmosphere inside the control panel even when the machining tool power supply is not turned on.Type: ApplicationFiled: September 16, 2015Publication date: March 31, 2016Inventor: Taisei FUJIMOTO
-
Publication number: 20150338841Abstract: When warm-up operation is started, a machine tool acquires an atmospheric temperature around the machine tool and selects a warm-up operation program on the basis of the acquired atmospheric temperature. A warm-up operation command suitable for the atmospheric temperature is given to the control unit according to the selected warm-up operation program. A movable unit of the machine tool can be thereby controlled, and optimum warm-up operation for the atmospheric temperature can be eventually performed.Type: ApplicationFiled: May 13, 2015Publication date: November 26, 2015Inventor: Taisei FUJIMOTO
-
Publication number: 20150229052Abstract: A detector comprising a circuit board, a board-side connector which is mounted on the circuit board, and a flexible cable which has a terminal part inserted in the board-side connector, wherein a reinforcement member of the flexible cable is attached to an end part of the flexible cable which includes the terminal part, and the reinforcement member includes a foldable part which allows local bending of the end part of the flexible cable.Type: ApplicationFiled: February 10, 2015Publication date: August 13, 2015Inventors: Taisei Fujimoto, Hirofumi Kikuchi