Patents by Inventor Katsumi Ueda
Katsumi Ueda 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).
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Patent number: 11959156Abstract: A cubic boron nitride sintered material comprises cubic boron nitride particles and a bonding material, wherein the bonding material comprises at least one first metallic element selected from the group consisting of titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, rhenium, molybdenum, and tungsten; cobalt; and aluminum; the cubic boron nitride sintered material has a first interface region sandwiched between an interface between the cubic boron nitride particles and the bonding material, and a first virtual line passing through a point 10 nm apart from the interface to the bonding material side; and when an element that is present at the highest concentration among the first metallic elements in the first interface region is defined as a first element, an atomic concentration of the first element in the first interface region is higher than an atomic concentration of the first element in the bonding material excluding the first interface region.Type: GrantFiled: July 30, 2021Date of Patent: April 16, 2024Assignees: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yuichiro Watanabe, Katsumi Okamura, Akito Ishii, Yoshiki Asakawa, Akihiko Ueda, Satoru Kukino, Hisaya Hama
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Patent number: 8880303Abstract: A vehicle control unit and a vehicle equipped with the vehicle control unit are provided, the vehicle control unit being capable of preventing a shift change from being permitted in a direction opposite to a vehicle traveling direction caused by an erroneous operation of a shift lever during a traveling mode.Type: GrantFiled: July 15, 2008Date of Patent: November 4, 2014Assignee: Mitsubishi Nichiyu Forklift Co., Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Patent number: 8651589Abstract: A control device 10 of an industrial vehicle which performs the control of actuating a parking brake 7 during operator's absence in an industrial vehicle includes a seat switch 1, a vehicle speed sensor 2, and the parking brake 7 controlled by a parking brake solenoid 6, and a counter 11 which counts the elapsed time after the seat switch 1 detects the operator's absence. The control device sets the time corresponding to the time until the operator leaves the vehicle after the operator leaves the seat as a preset absence time. When the seat switch 1 has detected absence, a control signal which validates the parking brake 7 is output to the parking brake solenoid 6, thereby actuating the parking brake 7 if the vehicle speed shows a vehicle stopped state, and the elapsed time becomes equal to or more than the set absence time.Type: GrantFiled: July 22, 2008Date of Patent: February 18, 2014Assignee: Mitsubishi Nichiyu Forklift Co., Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Patent number: 8364358Abstract: In a vehicle control unit for controlling a vehicle based on a detection signal obtained from a shift range detecting unit that detects a shift range selected by a shift operating unit, a vehicle speed detecting unit that detects a vehicle speed, and an engine rpm detecting unit that detects an engine rpm, when the detected vehicle speed is less than a reference vehicle speed, the shift range detecting unit detects that a shift switching operation is carried out from a neutral to a forward range or a reverse range, and the engine rpm detecting unit detects that the engine rpm is not less than a predetermined value until a time not less than a predetermined time is elapsed from when the shift switching operation is detected, a control for prohibiting a shift change of a transmission in accordance with the shift switching operation is carried out.Type: GrantFiled: July 22, 2008Date of Patent: January 29, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Patent number: 8321113Abstract: A vehicle control device has a control device 10 mounted on a vehicle including an accelerator opening detecting sensor 2, a vehicle speed sensor 3, and braking means 7 capable of adjusting deceleration of the vehicle. The control device stores a plurality of deceleration tables 12 in which the deceleration is set according to a predetermined parameter. If the detected vehicle speed is equal to or less than a preset vehicle speed V1 and the detected accelerator opening is equal to or less than a preset accelerator opening when a target deceleration is selected by the deceleration selecting means 4 and 5, the selection of the deceleration is validated, a deceleration table 12 corresponding to the deceleration selected by the deceleration selecting means is read, and the braking means is actuated on the basis of braking parameters specified in the table, thereby executing deceleration control to provide the selected deceleration.Type: GrantFiled: July 22, 2008Date of Patent: November 27, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Publication number: 20110320067Abstract: There is provided a vehicle control device and a vehicle mounted with this device, capable of properly setting a braking force to bring an operator's feeling into an optimal state. In a control device 10 mounted on a vehicle including an accelerator opening detecting sensor 2 which detects an accelerator opening, a vehicle speed sensor 3 which detects a vehicle speed, and braking means (solenoid control brake) 7 capable of adjusting deceleration of the vehicle, the control device includes a storage unit 10b which stores a plurality of deceleration tables 12 in which the deceleration is set according to a predetermined parameter.Type: ApplicationFiled: July 22, 2008Publication date: December 29, 2011Applicant: Mitsubishi Heavy Industries, LtdInventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Publication number: 20110313627Abstract: A vehicle control unit and a vehicle equipped with the vehicle control unit are provided, the vehicle control unit being capable of preventing a shift change from being permitted in a direction opposite to a vehicle traveling direction caused by an erroneous operation of a shift lever during a traveling mode.Type: ApplicationFiled: July 15, 2008Publication date: December 22, 2011Applicant: Mitsubishi Heavy Industries LtdInventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Publication number: 20100332093Abstract: A vehicle control unit and a vehicle equipped with the vehicle control unit are provided, the vehicle control unit being capable of preventing a breakdown of a vehicle caused by an erroneous operation upon carrying out a departure operation.Type: ApplicationFiled: July 22, 2008Publication date: December 30, 2010Applicant: Mitsubishi Heavy Industries LtdInventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Publication number: 20100308644Abstract: There is provided a control device of an industrial vehicle and an industrial vehicle loaded with this device, capable of reliably detecting operator absence, thereby avoiding the danger of an accident occurring during this absence. In a control device 10 which performs the control of actuating a parking brake 7 during operator's absence in an industrial vehicle including a seat switch 1, a vehicle speed sensor 2, and the parking brake 7 controlled by a parking brake solenoid 6, the control device includes a counter 11 which counts the elapsed time after the seat switch 1 detects the operator's absence, and sets the time corresponding to the time until the operator leaves the vehicle after the operator leaves his/hear seat as a preset absence time.Type: ApplicationFiled: July 22, 2008Publication date: December 9, 2010Applicant: Mitsubishi Heavy Industries, Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Publication number: 20100204872Abstract: Provided are a vehicle controller and a vehicle mounted with the vehicle controller capable of performing a control for realizing an operator's intention to stop or start a vehicle without performing a troublesome driving operation. In a controller 20 mounted to a vehicle and including a vehicle speed sensor 2 detecting a vehicle speed, a solenoid control brake 10 controlled by a solenoid control valve 9, and a brake pedal sensor 2 detecting an operation amount of a brake pedal 1 used to operate a service brake, when the vehicle speed detected by the vehicle speed sensor 2 is not more than a predetermined vehicle speed X km/h indicating a vehicle stop state and a brake ON signal detected by the brake pedal sensor 2 continues for a predetermined time Y or more, a control signal for enabling the solenoid control brake 10 is output to the solenoid control valve 9.Type: ApplicationFiled: July 22, 2008Publication date: August 12, 2010Applicant: Mitsubishi Heavy Industries, Ltd.Inventors: Naoki Ishikawa, Katsumi Ueda, Masanobu Seki
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Patent number: 7278508Abstract: A control system of an industrial truck includes a first switch, a second switch and a hydraulic circuit. The first switch detects whether an operator sits on a seat, and carries out a first operation based on the result. The second switch detects whether a device for operating an actuator is operated, and carries out a second operation based on the result. The hydraulic circuit is used for operating the actuator. It a control valve, a first circulating line, a hydraulic line and a drive lock valve. The control valve includes a spool whose position is changed by the device. The first circulating line includes the control valve, through which the hydraulic fluid circulates. The hydraulic line connects the spool with the actuator. The drive lock valve is provided for the hydraulic line and blocks the hydraulic line, based on the first operation and/or the second operation.Type: GrantFiled: May 28, 2004Date of Patent: October 9, 2007Assignees: Mitsubishi Heavy Industries, Ltd., Nissan Motor Co., Ltd.Inventors: Takuya Nakada, Katsumi Ueda, Toru Saito
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Patent number: 7240757Abstract: A self propelled industrial machine includes a self propelled vehicle body, a transmission installed in the self propelled vehicle body, an operator presence detection switch and a control unit. The operator presence detection switch is provided to generate an operator presence or absence signal relating to an operator on a seat arranged on the self propelled vehicle body. The control unit is provided to set the transmission to a neutral state in response to the operator absence signal.Type: GrantFiled: May 28, 2004Date of Patent: July 10, 2007Assignees: Mitsubishi Heavy Industries, Ltd., Nissan Motor Co., Ltd.Inventors: Katsumi Ueda, Yoshihide Iwamoto, Toru Saito
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Publication number: 20040261609Abstract: A control system of an industrial truck includes a first switch, a second switch and a hydraulic circuit. The first switch detects whether an operator sits down on a seat, and carries out a first operation based on the detecting result. The second switch detects whether a device for operating an actuator is operated, and carries out a second operation based on the detecting result. The hydraulic circuit is used for operating of the actuator. The hydraulic circuit includes: a control valve, a first circulating line, a hydraulic line and a drive lock valve. The control valve includes a spool that position is changed by the device. The first circulating line includes the control valve, through which the hydraulic fluid circulates. The hydraulic line connects the spool with the actuator, through which the hydraulic fluid passes. The drive lock valve is provided for the hydraulic line, and blocks the hydraulic line, based on the first operation and/or the second operation.Type: ApplicationFiled: May 28, 2004Publication date: December 30, 2004Inventors: Takuya Nakada, Katsumi Ueda, Toru Saito
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Publication number: 20040256168Abstract: A self propellered industrial machine includes a self propellered vehicle body; a transmission installed in the self propellered vehicle body; an operator presence detection switch and a control unit. The operator presence detection switch is provided to generate an operator presence or absence signal relating to an operator on a seat arranged on the self propellered vehicle body. The control unit is provided to set the transmission to a neutral state in response to the operator absence signal.Type: ApplicationFiled: May 28, 2004Publication date: December 23, 2004Inventors: Katsumi Ueda, Yoshihide Iwamoto, Toru Saito
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Patent number: 6793573Abstract: An air conditioning system for a vehicle includes a first air path formed within an air duct, and a second air path formed within the air duct. The air conditioning system also includes an air mixing damper for adjusting a first amount of air, which flows within the first air path, and a second amount of air, which flows within the second air path. The air mixing damper includes a plurality of convex portions, and a plurality of concave portions, each of which concave portions is positioned between adjacent pairs of the plurality of convex portions. The air conditioning system also includes a drive mechanism for driving the air mixing damper. The drive mechanism includes a first gear engaging a portion of the plurality of convex portions and a portion of the plurality of concave portions. The drive mechanism also includes a shaft coupled operationally to the first gear, and an end of the shaft is positioned outside the air duct.Type: GrantFiled: June 10, 2003Date of Patent: September 21, 2004Assignee: Sanden CorporationInventor: Katsumi Ueda
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Publication number: 20030233843Abstract: An air conditioning system for a vehicle includes a first air path formed within an air duct, and a second air path formed within the air duct. The air conditioning system also includes an air mixing damper for adjusting a first amount of air, which flows within the first air path, and a second amount of air, which flows within the second air path. The air mixing damper includes a plurality of convex portions, and a plurality of concave portions, each of which concave portions is positioned between adjacent pairs of the plurality of convex portions. The air conditioning system also includes a drive mechanism for driving the air mixing damper. The drive mechanism includes a first gear engaging a portion of the plurality of convex portions and a portion of the plurality of concave portions. The drive mechanism also includes a shaft coupled operationally to the first gear, and an end of the shaft is positioned outside the air duct.Type: ApplicationFiled: June 10, 2003Publication date: December 25, 2003Inventor: Katsumi Ueda
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Patent number: 6079218Abstract: An air conditioner for a vehicle includes a heat pump system for heating and cooling. The air conditioner includes a ventilation passage for ventilating air from a passenger compartment of the vehicle outside of the vehicle. An accelerating system is provided with the heat pump system for accelerating the evaporation of a refrigerant during air cooling or the condensation of a refrigerant during air heating by using involved energy recovered from air exhausted outside of said vehicle through the ventilation passage. Thereby, the air conditioner increases the heating and cooling ability and reduces the energy necessary for maintaining a constant temperature in the passenger compartment.Type: GrantFiled: September 23, 1997Date of Patent: June 27, 2000Assignee: Sanden CorporationInventor: Katsumi Ueda
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Patent number: 5749235Abstract: An air conditioner for a vehicle includes a heat pump system for heating and cooling. The air conditioner includes a ventilation passage for ventilating air from a passenger compartment of the vehicle outside of the vehicle. An accelerating system is provided with the heat pump system for accelerating the evaporation of a refrigerant during air cooling or the condensation of a refrigerant during air heating by using involved energy recovered from air exhausted outside of said vehicle through the ventilation passage. Thereby, the air conditioner increases the heating and cooling ability and reduces the energy necessary for maintaining a constant temperature in the passenger compartment.Type: GrantFiled: April 2, 1996Date of Patent: May 12, 1998Assignee: Sanden CorporationInventor: Katsumi Ueda