Patents by Inventor Keitaro Yokogawa
Keitaro Yokogawa 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: 20230061788Abstract: To provide a work machine in which a filter can be manufactured at low costs and can be fitted into various shapes. A work machine comprises a cover member configured to partition a machine room in which at least a part of a cooling core is housed. The work machine comprises an opening part formed in the cover member, and configured to take-in an air for cooling the cooling core into the machine room. The work machine comprises a plain-woven wire mesh welded and attached to a position from the opening part to the cooling core, and configured to form a filter that prevents inclusion of dust into the machine room from the opening part.Type: ApplicationFiled: January 15, 2021Publication date: March 2, 2023Applicant: Caterpillar SARLInventors: Kazumasa MATSUMURA, Keitaro YOKOGAWA, Naoya SHIBAHARA
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Patent number: 10087602Abstract: A first hood member is fixed to an upper side opening edge of machine room and a second hood member is adjacently fixed to the upper side opening edge. The first hood member includes a reinforcing deformation part disposed along one notch-like edge portion positioned above a part adjacent to second hood member and has a protruded-shape cross section upward; and a pressing portion disposed at one notch-like edge portion along the reinforcing deformation part and protruding downward. The second hood member includes a pressed groove portion disposed corresponding to the pressing portion and has a recessed-shape cross section upward.Type: GrantFiled: December 16, 2014Date of Patent: October 2, 2018Assignee: Caterpillar SARLInventors: Kazumasa Matsumura, Masanori Tsuji, Keitaro Yokogawa
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Publication number: 20160326719Abstract: A first hood member is fixed to an upper side opening edge of machine room and a second hood member is adjacently fixed to the upper side opening edge. The first hood member includes a reinforcing deformation part disposed along one notch-like edge portion positioned above a part adjacent to second hood member and has a protruded-shape cross section upward; and a pressing portion disposed at one notch-like edge portion along the reinforcing deformation part and protruding downward. The second hood member includes a pressed groove portion disposed corresponding to the pressing portion and has a recessed-shape cross section upward.Type: ApplicationFiled: December 16, 2014Publication date: November 10, 2016Applicant: Caterpillar SARLInventors: Kazumasa Matsumura, Masanori Tsuji, Keitaro Yokogawa
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Patent number: 8726514Abstract: An object of the present invention is to provide a panel manufacturing method capable of easily adapting to manufacture of panels, such as door panels, of different sizes. The present invention provides a panel manufacturing method for a panel made of an outer plate integrated with an inner plate. The method includes a step of applying an adhesive to a predetermined place on the outer plate; a step of mating the outer plate and the inner plate with each other and providing preliminary bonding by laser welding; a step of hemming by bending an outer edge portion of the pre-bonded outer plate to wrap over a circumferential edge portions of the inner plate and then pressing flat; and a step of sealing the panel, after the outer plate has undergone the hemming step on its circumferential edge portions, by applying an adhesive.Type: GrantFiled: November 15, 2012Date of Patent: May 20, 2014Assignee: Nakahara Co., Ltd.Inventors: Keitaro Yokogawa, Isao Yoshijima, Shuichi Tome
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Patent number: 8413382Abstract: A second hinge plate supported pivotally on a first hinge plate using a shaft member so as to open and close. In the second hinge plate, a bracket is molded integrally at the upper edge of the end opposite the shaft member. A vertical shaft of a hold-stay rod is loosely fitted into a shaft hole of the bracket so as to move rotationally and slide in a vertical direction. A horizontal shaft of the hold-stay rod is inserted into a guide hole of a guide plate welded to the first hinge plate and slidable, and a stopper is folded and formed at the leading end of the hold-stay rod. The stopper is inserted into an engaging hole by movement from a guide to a receiving plate due to the opening movement of the second hinge plate and can be taken out from the engaging hole by a pushing-up operation.Type: GrantFiled: May 27, 2009Date of Patent: April 9, 2013Assignee: Caterpillar SARLInventors: Ryoji Uto, Keitaro Yokogawa, Takahiro Goto, Shigemi Takeuchi
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Patent number: 8047422Abstract: This invention has an object to provide a method for precisely fabricating transportation pallets readily adaptable to model change and other alterations. In the method for fabricating a transportation pallet according to the invention, in which jig mounting plates are fixed on a steel pallet base, projecting pieces having holes to which jigs are attached are provided on one longer side of the jig mounting plates (12, 13) at a predetermined interval, a positioning member is secured on the pallet base, the jig mounting plates are temporarily secured along the positioning member, and the jig mounting plates are welded to be fixed on the pallet base.Type: GrantFiled: June 26, 2006Date of Patent: November 1, 2011Assignee: Nakahara Co., Ltd.Inventors: Chikao Tamamori, Keitaro Yokogawa, Nobuji Ota
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Patent number: 7959059Abstract: This invention has an object to provide a method for precisely fabricating transportation pallets readily adaptable to model change and other alterations. In the method for fabricating a transportation pallet according to the invention, in which jig mounting plates are fixed on a steel pallet base, projecting pieces having holes to which jigs are attached are provided on one longer side of the jig mounting plates at a predetermined interval, a positioning member is secured on the pallet base, the jig mounting plates are temporarily secured along the positioning member, and the jig mounting plates are welded to be fixed on the pallet base.Type: GrantFiled: December 22, 2009Date of Patent: June 14, 2011Assignee: Nakahara Co., Ltd.Inventors: Chikao Tamamori, Keitaro Yokogawa, Nobuji Ota
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Publication number: 20110126469Abstract: A second hinge plate supported pivotally on a first hinge plate using a shaft member so as to open and close. In the second hinge plate, a bracket is molded integrally at the upper edge of the end opposite the shaft member. A vertical shaft of a hold-stay rod is loosely fitted into a shaft hole of the bracket so as to move rotationally and slide in a vertical direction. A horizontal shaft of the hold-stay rod is inserted into a guide hole of a guide plate welded to the first hinge plate and slidable, and a stopper is folded and formed at the leading end of the hold-stay rod. The stopper is inserted into an engaging hole by movement from a guide to a receiving plate due to the opening movement of the second hinge plate and can be taken out from the engaging hole by a pushing-up operation.Type: ApplicationFiled: May 27, 2009Publication date: June 2, 2011Applicant: CATERPILLAR JAPAN LTD.Inventors: Ryoji Uto, Keitaro Yokogawa, Takahiro Goto, Shigemi Takeuchi
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Publication number: 20100095511Abstract: This invention has an object to provide a method for precisely fabricating transportation pallets readily adaptable to model change and other alterations. In the method for fabricating a transportation pallet according to the invention, in which jig mounting plates are fixed on a steel pallet base, projecting pieces having holes to which jigs are attached are provided on one longer side of the jig mounting plates at a predetermined interval, a positioning member is secured on the pallet base, the jig mounting plates are temporarily secured along the positioning member, and the jig mounting plates are welded to be fixed on the pallet base.Type: ApplicationFiled: December 22, 2009Publication date: April 22, 2010Applicant: NAKAHARA CO., LTD.Inventors: Chikao TAMAMORI, Keitaro YOKOGAWA, Nobuji OTA
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Publication number: 20090049672Abstract: This invention has an object to provide a method for precisely fabricating transportation pallets readily adaptable to model change and other alterations. In the method for fabricating a transportation pallet according to the invention, in which jig mounting plates are fixed on a steel pallet base, projecting pieces having holes to which jigs are attached are provided on one longer side of the jig mounting plates at a predetermined interval, a positioning member is secured on the pallet base, the jig mounting plates are temporarily secured along the positioning member, and the jig mounting plates are welded to be fixed on the pallet base.Type: ApplicationFiled: June 26, 2006Publication date: February 26, 2009Applicant: NAKAHARA CO., LTD.Inventors: Chikao Tamamori, Keitaro Yokogawa, Nobuji Ota