Patents by Inventor Tooru Nakayama
Tooru Nakayama 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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Publication number: 20230383161Abstract: Provided are a heat pipe coolant capable of suppressing deformation of a flat plate-like heat pipe, and a flat plate-like heat pipe. The heat pipe coolant is a coolant enclosed in a flat plate-like heat pipe serving as a heat diffusion plate. The heat pipe coolant includes water and a deformation suppressant that lowers the hardness when the water freezes. The deformation suppressant is 1,4-dioxane or diethylene glycol dimethyl ether. A content of the water is 90 wt % or greater. A content of the deformation suppressant is 0.5 wt % or greater.Type: ApplicationFiled: September 15, 2021Publication date: November 30, 2023Inventors: Tooru Nakayama, Rinkou Fukunaga
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Patent number: 8583322Abstract: A mobile crusher includes: a crusher that crushes raw material; a discharge conveyor being disposed on a downstream side of the crusher to discharge the material crushed by the crusher; an engine that serves as a driving source at least for the crusher and the discharge conveyer; a fuel injection quantity controlling unit that controls a speed of the engine; a crusher pressure sensor that determines a change in a load of the crushed material in the crusher; and a pressure sensor that determines presence or absence of the crushed material to be discharged on the discharge conveyor. When the crusher pressure sensor determines that the load on the crusher is reduced and the pressure sensor determines that the crushed material is not present on the discharge conveyor, the fuel injection quantity controlling unit lowers the speed of the engine to a decelerated speed.Type: GrantFiled: May 1, 2009Date of Patent: November 12, 2013Assignee: Komatsu Ltd.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Patent number: 8118246Abstract: A mobile crusher includes: a crusher for crushing raw materials; a discharge conveyor provided on a lower stream of the crusher for discharging the raw materials crushed by the crusher; a work implement provided on an upper stream of the crusher for producing the crushed materials; a conveyor sensor and conveyor pressure comparing unit for determining whether the crushed materials to be discharged are fed on the discharge conveyor or not; a crusher pressure sensor and crusher pressure comparing unit for determining whether the raw materials are present in the crusher or not; and a flow rate controller for controlling the speeds of the crusher, discharge conveyor and work implement based on determination results of the conveyor pressure sensor, conveyor pressure comparing unit, crusher pressure sensor and crusher pressure comparing unit.Type: GrantFiled: May 27, 2009Date of Patent: February 21, 2012Assignee: Komatsu Ltd.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Patent number: 8042753Abstract: A mobile crusher includes: a crusher having a fixed jaw and a swing jaw and adjusting an outlet gap between lower ends of the fixed jaw and the swing jaw, the crusher crushing raw materials by swing movement of the swing jaw toward the fixed jaw and discharging the raw materials crushed by the crusher from the outlet gap to produce crushed materials; a work implement disposed on an upper stream or a lower stream of the crusher to produce the crushed materials; and a controller that controls a work implement speed of the work implement depending on the outlet gap.Type: GrantFiled: May 12, 2009Date of Patent: October 25, 2011Assignee: Komatsu Ltd.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Publication number: 20110077821Abstract: A mobile crusher includes: a crusher that crushes raw material; a discharge conveyor being disposed on a downstream side of the crusher to discharge the material crushed by the crusher; an engine (49) that serves as a driving source at least for the crusher and the discharge conveyer; a fuel injection quantity controlling unit (711) that controls a speed of the engine (49); a crusher pressure sensor (57) that determines a change in a load of the crushed material in the crusher; and a pressure sensor (51) that determines presence or absence of the crushed material to be discharged on the discharge conveyor. When the crusher pressure sensor (57) determines that the load on the crusher is reduced and the pressure sensor (51) determines that the crushed material is not present on the discharge conveyor, the fuel injection quantity controlling unit (711) lowers the speed of the engine (49) to a decelerated speed.Type: ApplicationFiled: May 1, 2009Publication date: March 31, 2011Applicant: KOMATSU LTD.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Patent number: 7905343Abstract: A self-propelled crushing machine is provided which ensures that, even when crushed pieces of an object include a concrete reinforcing steel bar or other like material piece, it is prevented that the concrete reinforcing steel bar will pierce into a conveyor belt. To this end, the crushing machine has a memory for storing a relationship in belt velocities between a conveyor belt and a magnetic separator belt which relationship allows a concrete reinforcing steel bar attracted and adhered to the magnetic separator belt to be taken off of the conveyor belt before the trailing end of the concrete reinforcing steel bar travels past a leading end attraction/adhesion position at which the leading end of the concrete reinforcing steel bar is to be attracted and adhered to the magnetic separator belt.Type: GrantFiled: June 2, 2009Date of Patent: March 15, 2011Assignee: Komatsu Ltd.Inventors: Tooru Nakayama, Gousuke Nakashima
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Patent number: 7708218Abstract: A jaw crusher includes: a crusher frame to which a cross member for connecting a pair of side wall plates is provided; a fixed jaw; a swing jaw swingably hung between the side wall plates; a pair of toggle link pins both of which are disposed along a common axial direction having a first outer end pivoted on the side plate and a second inner end pivoted on a main supporter provided to the cross member; and a reaction force-receiving link mechanism including a toggle link rotatably supported by the toggle link pin. The main supporter of the cross member on which the second end of the toggle link pin is pivoted is box-shaped.Type: GrantFiled: August 24, 2006Date of Patent: May 4, 2010Assignee: Komatsu Ltd.Inventors: Tooru Nakayama, Ryoichi Togashi, Kentaro Ito, Kouzo Suzuki
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Patent number: 7686241Abstract: In a jaw crusher, cheek plates are mounted on side wall plates of a crusher frame by mounting bolts, and the mounting bolt adjacent to the outlet of the jaw crusher can be covered with the swing jaw by adjustment of an outlet gap-adjusting link mechanism. When the jaw crusher is in operation, the mounting bolt is covered by the swing jaw to avoid contact with raw materials, so that abrasion of and damages to the mounting bolt can be prevented. Thus, a longer lifetime of the jaw crusher can be promoted. Besides, since abrasion of and damages to the mounting bolt can be prevented, a mounting structure of the cheek plate can be stronger.Type: GrantFiled: August 24, 2006Date of Patent: March 30, 2010Assignee: Komatsu Ltd.Inventors: Tooru Nakayama, Ryoichi Togashi, Kouzo Suzuki
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Publication number: 20090314693Abstract: A self-propelled crushing machine is provided which ensures that, even when crushed pieces of an object include a concrete reinforcing steel bar or other like material piece, it is prevented that the concrete reinforcing steel bar will pierce into a conveyor belt. To this end, the crushing machine has a memory for storing a relationship in belt velocity between a conveyor belt and a magnetic separator belt which relationship allows a concrete reinforcing steel bar attracted and adhered to the magnetic separator belt to be taken off from the conveyor belt before the trailing end of the concrete reinforcing steel bar travels past a leading end attraction/adhesion position at which the leading end of the concrete reinforcing steel bar is to be attracted and adhered to the magnetic separator belt.Type: ApplicationFiled: June 2, 2009Publication date: December 24, 2009Applicant: KOMATSU LTD.Inventors: Tooru NAKAYAMA, Gousuke Nakashima
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Publication number: 20090302141Abstract: A mobile crusher includes: a crusher having a fixed jaw and a swing jaw and adjusting an outlet gap between lower ends of the fixed jaw and the swing jaw, the crusher crushing raw materials by swing movement of the swing jaw toward the fixed jaw and discharging the raw materials crushed by the crusher from the outlet gap to produce crushed materials; a work implement disposed on an upper stream or a lower stream of the crusher to produce the crushed materials; and a controller that controls a work implement speed of the work implement depending on the outlet gap.Type: ApplicationFiled: May 12, 2009Publication date: December 10, 2009Applicant: KOMATSU LTD.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Publication number: 20090294560Abstract: A mobile crusher includes: a crusher for crushing raw materials; a discharge conveyor provided on a lower stream of the crusher for discharging the raw materials crushed by the crusher; a work implement provided on an upper stream of the crusher for producing the crushed materials; a conveyor sensor and conveyor pressure comparing unit for determining whether the crushed materials to be discharged are fed on the discharge conveyor or not; a crusher pressure sensor and crusher pressure comparing unit for determining whether the raw materials are present in the crusher or not; and a flow rate controller for controlling the speeds of the crusher, discharge conveyor and work implement based on determination results of the conveyor pressure sensor, conveyor pressure comparing unit, crusher pressure sensor and crusher pressure comparing unit.Type: ApplicationFiled: May 27, 2009Publication date: December 3, 2009Applicant: KOMATSU LTD.Inventors: Masaho Yamaguchi, Yasutaka Nishida, Mitsunobu Yamada, Tooru Nakayama, Ryouichi Togashi
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Publication number: 20090152387Abstract: A jaw crusher includes: a crusher frame to which a cross member for connecting a pair of side wall plates is provided; a fixed jaw; a swing jaw swingably hung between the side wall plates; a pair of toggle link pins both of which are disposed along a common axial direction having a first outer end pivoted on the side plate and a second inner end pivoted on a main supporter provided to the cross member; and a reaction force-receiving link mechanism including a toggle link rotatably supported by the toggle link pin. The main supporter of the cross member on which the second end of the toggle link pin is pivoted is box-shaped.Type: ApplicationFiled: August 24, 2006Publication date: June 18, 2009Inventors: Tooru Nakayama, Ryoichi Togashi, Kentaro Ito, Kouzo Suzuki
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Publication number: 20090095833Abstract: In a jaw crusher, cheek plates are mounted on side wall plates of a crusher frame by mounting bolts, and the mounting bolt adjacent to the outlet of the jaw crusher can be covered with the swing jaw by adjustment of an outlet gap-adjusting link mechanism. When the jaw crusher is in operation, the mounting bolt is covered by the swing jaw to avoid contact with raw materials, so that abrasion of and damages to the mounting bolt can be prevented. Thus, a longer lifetime of the jaw crusher can be promoted. Besides, since abrasion of and damages to the mounting bolt can be prevented, a mounting structure of the cheek plate can be stronger.Type: ApplicationFiled: August 24, 2006Publication date: April 16, 2009Applicant: Komatsu Ltd.Inventors: Tooru Nakayama, Ryoichi Togashi, Kouzo Suzuki
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Patent number: 7293725Abstract: In an impact crusher, a rise of an advancing-retracting portion (65) of a gap adjuster (60) caused when a rebound plate (33) touches a rotor (32) or the rotation amount of the rotor (32) is detected to determine a zero-point position of the rebound plate (33) is determined based on the detected result, so that the zero-point position can be securely determined since it is not necessary to touch and vibrate the rebound plate with the rotor rotating at a high speed, and since the rebound plate (33) is not vibrated, the zero-point position can be securely determined without being influenced by the abrasion of the rebound plate (33) and the impact plate (322), thereby accurately adjusting gap (C).Type: GrantFiled: August 26, 2002Date of Patent: November 13, 2007Assignee: Komatsu Ltd.Inventors: Yukio Moriya, Hiroshi Yoshida, Tooru Nakayama, Yuji Ozawa, Katsuhiro Ikegami
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Publication number: 20030038196Abstract: In an impact crusher, a rise of an advancing-retracting portion (65) of a gap adjuster (60) caused when a rebound plate (33) touches a rotor (32) or the rotation amount of the rotor (32) is detected to determine a zero-point position of the rebound plate (33) is determined based on the detected result, so that the zero-point position can be securely determined since it is not necessary to touch and vibrate the rebound plate with the rotor rotating at a high speed, and since the rebound plate (33) is not vibrated, the zero-point position can be securely determined without being influenced by the abrasion of the rebound plate (33) and the impact plate (322), thereby accurately adjusting gap (C).Type: ApplicationFiled: August 26, 2002Publication date: February 27, 2003Inventors: Yukio Moriya, Hiroshi Yoshida, Tooru Nakayama, Yuji Ozawa, Katsuhiro Ikegami
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Patent number: 6419172Abstract: A mobile crusher, which has a high-quality controlling function enabling an efficient production, and which is capable of preventing the crusher itself from being damaged, is provided. For this purpose, a mobile crusher having a feeder (3) and a crusher member (4) which are set drivably on a mobile vehicle body (1), includes means (7) for detecting an amount of a material to be crushed, which detects an amount (H) of a material (6a) to be crushed inside the crusher member (4), and control means (10) for receiving the amount H from the means (7) for detecting the amount of the material to be crushed and controlling a driving speed V of the feeder (3) changeably based on the reception amount H.Type: GrantFiled: September 20, 2000Date of Patent: July 16, 2002Assignee: Komatsu Ltd.Inventors: Kazuyuki Yamazaki, Satoru Koyanagi, Yasutaka Nishida, Katsuhiro Ikegami, Tooru Nakayama, Motoki Kurohara
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Patent number: 6354524Abstract: A self-propelling crushing machine comprises a machine body (2) provided with a travelling body (1); a hopper (4), a feeder (5), a selective feeder (6) and a crusher (3) which mounted to the machine body; a conveyer (7) disposed below the machine body; and a controlling device for independently controlling the feeder, the selective feeder, the crusher and the conveyer, wherein the feeder conveys a material to be crushed in the hopper to the selective feeder, the selective feeder selects the material to be crushed conveyed by the feeder so as to fall down soil, shingle and the like and convey large rock to the crusher, and the conveyer discharges the selected soil, shingle and the like and material pieces crushed by the crusher.Type: GrantFiled: December 15, 1999Date of Patent: March 12, 2002Assignee: Komatsu Ltd.Inventors: Tooru Nakayama, Teruo Nakahara, Kazuhiro Yoshida, Mitsunobu Yamada, Motoki Kurohara, Satoru Koyanagi, Katsuhiro Ikegami