Patents by Inventor Hiroshi Mahira
Hiroshi Mahira 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: 11408313Abstract: An exhaust device for an internal combustion engine of a saddled vehicle includes an exhaust muffler disposed on an outer side of a rear wheel so as to overlap the rear wheel when viewed from a side a muffler protector which covers the muffler. The muffler protector includes an inner protector half body covering the exhaust muffler from the rear wheel side and an outer protector half body covering the exhaust muffler from a vehicle outer side opposite to the rear wheel The inner protector half body is detachably mounted on the exhaust muffler or the outer protector half body while maintaining a state in which the outer protector half body is mounted on the exhaust muffler.Type: GrantFiled: March 27, 2017Date of Patent: August 9, 2022Assignee: Honda Motor Co., Ltd.Inventors: Hiroshi Mahira, Masahiro Kontani
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Patent number: 11371401Abstract: An exhaust muffler includes first and second pipes which extend through a casing, and which are disposed so that a downstream end of the first pipe faces an upstream end of the second pipe, wherein the downstream end of the first pipe and the upstream end of the second pipe are disposed so as to be spaced from each other in an axial direction, one end part of a support member having a circular cross section that has a smaller diameter than those of the first and the second pipes is fixed to one of a first lid member covering an opening at the downstream end of the first pipe and a second lid member covering an opening at the upstream end of the second pipe, and the other end part of the support member is slidably fitted to the other of the first and the second lid members.Type: GrantFiled: March 27, 2017Date of Patent: June 28, 2022Assignee: Honda Motor Co., Ltd.Inventors: Takahiko Shimizu, Hiroshi Mahira
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Publication number: 20200318509Abstract: An exhaust device for an internal combustion engine of a saddled vehicle includes an exhaust muffler disposed on an outer side of a rear wheel so as to overlap the rear wheel when viewed from a side a muffler protector which covers the muffler. The muffler protector includes an inner protector half body covering the exhaust muffler from the rear wheel side and an outer protector half body covering the exhaust muffler from a vehicle outer side opposite to the rear wheel The inner protector half body is detachably mounted on the exhaust muffler or the outer protector half body while maintaining a state in which the outer protector half body is mounted on the exhaust muffler.Type: ApplicationFiled: March 27, 2017Publication date: October 8, 2020Inventors: Hiroshi MAHIRA, Masahiro KONTANI
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Publication number: 20200318510Abstract: An exhaust muffler includes first and second pipes which extend through a casing, and which are disposed so that a downstream end of the first pipe faces an upstream end of the second pipe, wherein the downstream end of the first pipe and the upstream end of the second pipe are disposed so as to be spaced from each other in an axial direction, one end part of a support member having a circular cross section that has a smaller diameter than those of the first and the second pipes is fixed to one of a first lid member covering an opening at the downstream end of the first pipe and a second lid member covering an opening at the upstream end of the second pipe, and the other end part of the support member is slidably fitted to the other of the first and the second lid members.Type: ApplicationFiled: March 27, 2017Publication date: October 8, 2020Inventors: Takahiko SHIMIZU, Hiroshi MAHIRA
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Patent number: 10794258Abstract: An exhaust pipe structure for an in-line four-cylinder internal combustion engine includes: an in-line four-cylinder internal combustion engine; four exhaust pipes connected with respective exhaust ports in respective cylinders of the internal combustion engine; and a converging exhaust pipe connected with a converging portion at which downstream ends of all the exhaust pipes converge. In this exhaust pipe structure, the exhaust pipes are each configured as a dual pipe including an outer pipe and an inner pipe disposed inside the outer pipe. At the converging portion, the four exhaust pipes are arrayed linearly in parallel with each other, and the outer pipes of adjacent ones of the exhaust pipes are directly welded with each other at the downstream ends.Type: GrantFiled: August 16, 2019Date of Patent: October 6, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroshi Mahira, Satoru Yamasaki, Yasuhiro Morimoto
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Publication number: 20200080464Abstract: An exhaust pipe structure for an in-line four-cylinder internal combustion engine includes: an in-line four-cylinder internal combustion engine; four exhaust pipes connected with respective exhaust ports in respective cylinders of the internal combustion engine; and a converging exhaust pipe connected with a converging portion at which downstream ends of all the exhaust pipes converge. In this exhaust pipe structure, the exhaust pipes are each configured as a dual pipe including an outer pipe and an inner pipe disposed inside the outer pipe. At the converging portion, the four exhaust pipes are arrayed linearly in parallel with each other, and the outer pipes of adjacent ones of the exhaust pipes are directly welded with each other at the downstream ends.Type: ApplicationFiled: August 16, 2019Publication date: March 12, 2020Inventors: Hiroshi Mahira, Satoru Yamasaki, Yasuhiro Morimoto
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Patent number: 9512771Abstract: A catalytic device connected to an exhaust muffler from the front of the exhaust muffler to form substantially the shape of a T as viewed in plan is provided between an exhaust pipe and the exhaust muffler. One end portion of a reinforcing cover covering the catalytic device is fixed to an upstream end portion of the catalytic device, and another end portion of the reinforcing cover is fixed to the exhaust muffler. An extending portion extending rearwardly upward along the outer periphery of the exhaust muffler is formed integrally with the rear portion of a first heat insulating member covering the reinforcing cover from above. A second heat insulating member integrally having a cover portion covering the extending portion from above and inclined rearwardly upward is disposed so as to cover the exhaust muffler from above.Type: GrantFiled: September 4, 2015Date of Patent: December 6, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroshi Mahira, Takashi Akagi, Makoto Hotozuka
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Patent number: 9453441Abstract: A breather apparatus for an internal combustion engine for a vehicle in which an air cleaner is disposed above a crankcase. A breather tube is provided for guiding blow-by gas exhausted from the crankcase. The breather tube is coupled with a breather chamber formed in the air cleaner to separate gas and liquid in the breather chamber in the air cleaner. An upstream side flow path, coupled to the breather tube, and a downstream side flow path, continuously extending in a substantially U-shape to the upstream side flow path, are formed in the breather chamber.Type: GrantFiled: March 23, 2015Date of Patent: September 27, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Masahiro Kontani, Hiroshi Mahira
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Publication number: 20160090889Abstract: A catalytic device connected to an exhaust muffler from the front of the exhaust muffler to form substantially the shape of a T as viewed in plan is provided between an exhaust pipe and the exhaust muffler. One end portion of a reinforcing cover covering the catalytic device is fixed to an upstream end portion of the catalytic device, and another end portion of the reinforcing cover is fixed to the exhaust muffler. An extending portion extending rearwardly upward along the outer periphery of the exhaust muffler is formed integrally with the rear portion of a first heat insulating member covering the reinforcing cover from above. A second heat insulating member integrally having a cover portion covering the extending portion from above and inclined rearwardly upward is disposed so as to cover the exhaust muffler from above.Type: ApplicationFiled: September 4, 2015Publication date: March 31, 2016Inventors: Hiroshi Mahira, Takashi Akagi, Makoto Hotozuka
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Publication number: 20150275717Abstract: A breather apparatus for an internal combustion engine for a vehicle in which an air cleaner is disposed above a crankcase. A breather tube is provided for guiding blow-by gas exhausted from the crankcase. The breather tube is coupled with a breather chamber formed in the air cleaner to separate gas and liquid in the breather chamber in the air cleaner. An upstream side flow path, coupled to the breather tube, and a downstream side flow path, continuously extending in a substantially U-shape to the upstream side flow path, are formed in the breather chamber.Type: ApplicationFiled: March 23, 2015Publication date: October 1, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Masahiro KONTANI, Hiroshi MAHIRA
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Patent number: 8807273Abstract: An exhaust muffler device has a ceramic catalyst body, and a holding tube having an end portion configured to hold the ceramic catalyst body therein with a holding mat therebetween. The end portion is reduced in diameter to form a reduced diameter portion. An exhaust pipe is connected to the holding tube, with a downstream end portion thereof being fitted to an inner circumference of the reduced diameter portion of the holding tube. An inner circumferential surface of the downstream end portion of the exhaust pipe is in proximity to a boundary portion of the holding mat and the ceramic catalyst body.Type: GrantFiled: January 30, 2013Date of Patent: August 19, 2014Assignee: Honda Motor Co., Ltd.Inventors: Atsushi Murakami, Hiroshi Mahira, Tadahisa Masatani, Kensuke Honma, Shiro Kokubu