Patents by Inventor Yota Katsukawa
Yota Katsukawa 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: 10001092Abstract: An air cleaner mounted on a motorcycle for purifying an engine intake air includes a lower casing forming a cleaner main body, a covering for covering an upward region of the lower casing, a cleaner element disposed inside the lower casing and positioned below a mating interface between the lower casing and the covering, and a partition wall formed in the lower casing for supporting the cleaner element and forming a part of a wall of a clean chamber.Type: GrantFiled: November 18, 2015Date of Patent: June 19, 2018Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Akira Soeda, Yota Katsukawa, Yoshitaka Awazu, Satoshi Matsumoto, Kenta Matsubara
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Publication number: 20160069306Abstract: An air cleaner mounted on a motorcycle for purifying an engine intake air includes a lower casing forming a cleaner main body, a covering for covering an upward region of the lower casing, a cleaner element disposed inside the lower casing and positioned below a mating interface between the lower casing and the covering, and a partition wall formed in the lower casing for supporting the cleaner element and forming a part of a wall of a clean chamber.Type: ApplicationFiled: November 18, 2015Publication date: March 10, 2016Inventors: Akira Soeda, Yota Katsukawa, Yoshitaka Awazu, Satoshi Matsumoto, Kenta Matsubara
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Patent number: 8955635Abstract: A motorcycle frame assembly (FR) for a motorcycle includes a main frame (1), which extends from above a combustion engine (E) in a direction rearwardly, and a subframe (4) having front and rear end portions connected with the main frame (1) and also having an intermediate portion positioned laterally outside of a cylinder block (26) of the combustion engine (E). The combustion engine (E) is fixed to a motorcycle frame assembly (FR) by means of first, second and third engine mounting areas (M1, M2, M3). The first engine mounting area (M1) is provided in the intermediate portion of the subframe (4) and, also, a damping unit (72) for suppressing vibrations of a to-be-damped region (76) is provided in the to-be-damped region (76) provided at a location remote from the first engine mounting area (M1) in the subframe (4).Type: GrantFiled: September 25, 2013Date of Patent: February 17, 2015Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Kenji Idaka, Shiken Hayashi, Yota Katsukawa, Yoshitaka Awazu
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Patent number: 8851230Abstract: A motorcycle includes an exhaust chamber (82), having defined therein a chamber expansion compartment (90) for exhaust gases, and a muffler (84) having defined therein muffler expansion compartments (92, 94, 96) for the exhaust gases on a downstream side of the exhaust chamber (82). Respective outer peripheral walls of the exhaust chamber (82) and the muffler (84) are formed by a common casing (69). The exhaust chamber (82) is positioned intermediate between a motorcycle combustion engine (E) and a motorcycle rear wheel (22). The exhaust chamber (82) has an inner side surface positioned laterally inwardly of an outer side surface (22a) of the rear wheel (22) in a motorcycle body widthwise direction, and the muffler (84) has a rear portion positioned laterally outwardly of the rear wheel (22).Type: GrantFiled: August 16, 2013Date of Patent: October 7, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Masashi Ono, Toshiyuki Tsubone, Yota Katsukawa, Satoshi Matsumoto
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Publication number: 20140090919Abstract: A motorcycle frame assembly (FR) for a motorcycle includes a main frame (1), which extends from above a combustion engine (E) in a direction rearwardly, and a subframe (4) having front and rear end portions connected with the main frame (1) and also having an intermediate portion positioned laterally outside of a cylinder block (26) of the combustion engine (E). The combustion engine (E) is fixed to a motorcycle frame assembly (FR) by means of first, second and third engine mounting areas (M1, M2, M3). The first engine mounting area (M1) is provided in the intermediate portion of the subframe (4) and, also, a damping unit (72) for suppressing vibrations of a to-be-damped region (76) is provided in the to-be-damped region (76) provided at a location remote from the first engine mounting area (M1) in the subframe (4).Type: ApplicationFiled: September 25, 2013Publication date: April 3, 2014Applicant: Kawasaki Jukogyo Kabushiki KaishaInventors: Kenji Idaka, Shiken Hayashi, Yota Katsukawa, Yoshitaka Awazu
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Publication number: 20140060963Abstract: A motorcycle includes an exhaust chamber (82), having defined therein a chamber expansion compartment (90) for exhaust gases, and a muffler (84) having defined therein muffler expansion compartments (92, 94, 96) for the exhaust gases on a downstream side of the exhaust chamber (82). Respective outer peripheral walls of the exhaust chamber (82) and the muffler (84) are formed by a common casing (69). The exhaust chamber (82) is positioned intermediate between a motorcycle combustion engine (E) and a motorcycle rear wheel (22). The exhaust chamber (82) has an inner side surface positioned laterally inwardly of an outer side surface (22a) of the rear wheel (22) in a motorcycle body widthwise direction, and the muffler (84) has a rear portion positioned laterally outwardly of the rear wheel (22).Type: ApplicationFiled: August 16, 2013Publication date: March 6, 2014Applicant: Kawasaki Jukogyo Kabushiki KaishaInventors: Masashi Ono, Toshiyuki Tsubone, Yota Katsukawa, Satoshi Matsumoto
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Patent number: 7802424Abstract: An exhaust device for adjusting an exhaust gas cross sectional area of an exhaust passage in a combustion engine includes a valve body arranged in the exhaust passage communicating to an exhaust port of the combustion engine; a valve shaft fixed or integrally formed to the valve body and arranged so as to transverse the exhaust passage, the valve shaft changing the opening of the valve body by turning with the valve body about an axis of the valve shaft; a pair of bearing members for supporting rotatably the valve shaft at both ends thereof in a axial direction of the valve shaft; and a stopper arranged on the valve shaft so as to face an end face on the inward side of the exhaust passage of each bearing member in the axial direction. The stopper is restricted in the axial direction by the end face of each of the bearing members so that the valve body and the valve shaft do not move in the axial direction.Type: GrantFiled: January 15, 2008Date of Patent: September 28, 2010Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tatsuhiko Kanzawa, Kazumasa Wakahara, Naoki Tamai, Yota Katsukawa, Akira Soeda, Hidehiko Yamamoto
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Publication number: 20080168767Abstract: The present invention relates to an exhaust device for adjusting an exhaust gas cross sectional area of an exhaust passage in a combustion engine. The exhaust device includes a valve body arranged in the exhaust passage communicating to an exhaust port of the combustion engine; a valve shaft fixed or integrally formed to the valve body and arranged so as to transverse the exhaust passage, the valve shaft changing the opening of the valve body by turning with the valve body about an axis of the valve shaft; a pair of bearing members for supporting rotatably the valve shaft at both ends thereof in a axial direction of the valve shaft; and a stopper arranged on the valve shaft so as to face an end face on the inward side of the exhaust passage of each bearing member in the axial direction. The stopper is restricted in the axial direction by the end face of each of the bearing members so that the valve body and the valve shaft do not move in the axial direction.Type: ApplicationFiled: January 15, 2008Publication date: July 17, 2008Inventors: Tatsuhiko Kanzawa, Kazumasa Wakahara, Naoki Tamai, Yota Katsukawa, Akira Soeda, Hidehiko Yamamoto