Patents by Inventor Nobuharu Ota
Nobuharu Ota 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: 20220341114Abstract: A marine debris collection device includes a first debris collector to remove non-minute debris contained in debris floating on water by allowing the debris to flow thereinto together with the water, and a second debris collector to remove minute debris by adsorbing the minute debris onto a microbubble generated when the water flows into the second debris collector from the first debris collector via a connection pipe.Type: ApplicationFiled: July 7, 2022Publication date: October 27, 2022Inventors: Susumu SHIBAYAMA, Nobuharu OTA
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Publication number: 20220307215Abstract: A marine debris collection device includes an outer container, an inner container provided inside the outer container so as to be movable in an upward-downward direction with respect to the outer container, a pump to move the inner container downward and cause seawater and debris to flow into the inner container via an opening, and a lower buoyant body detachably attached to a lower portion of the inner container to maintain the opening of the inner container above a water surface when the pump is not driven.Type: ApplicationFiled: March 16, 2022Publication date: September 29, 2022Inventors: Susumu SHIBAYAMA, Nobuharu OTA
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Patent number: 11407479Abstract: A jet propulsion watercraft includes a vessel body, a jet pump that is disposed at the vessel body and that includes a water jet opening, and a first guide that is attached to the vessel body. The jet pump generates a thrust by sucking in water existing around the vessel body and jetting the water from the water jet opening. The first guide receives water flowing on a lateral side of the vessel body and generates a downforce that generates a wake behind the vessel body.Type: GrantFiled: August 25, 2020Date of Patent: August 9, 2022Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Susumu Shibayama, Yoshinori Yagi, Nobuharu Ota
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Patent number: 11072395Abstract: A watercraft includes a vessel body, a marine propulsion device and a guide. The marine propulsion device is attached to the vessel body and includes a water stream generator that propels the vessel body. The guide is provided on the vessel body and extends astern of the vessel body and toward a center of the vessel body in a width direction of the vessel body from a position located sideward of the water stream generator. The guide inwardly directs water flowing on one lateral side of the vessel body such that confluent timing of the water flowing on the one lateral side of the vessel body and water flowing on the other lateral side of the vessel body is caused to occur earlier than when the guide is not provided on the vessel body.Type: GrantFiled: July 16, 2018Date of Patent: July 27, 2021Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Susumu Shibayama, Nobuharu Ota, Takahiro Fujimoto
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Publication number: 20210078678Abstract: A jet propulsion watercraft includes a vessel body, a jet pump that is disposed at the vessel body and that includes a water jet opening, and a first guide that is attached to the vessel body. The jet pump generates a thrust by sucking in water existing around the vessel body and jetting the water from the water jet opening. The first guide receives water flowing on a lateral side of the vessel body and generates a downforce that generates a wake behind the vessel body.Type: ApplicationFiled: August 25, 2020Publication date: March 18, 2021Inventors: Susumu SHIBAYAMA, Yoshinori YAGI, Nobuharu OTA
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Patent number: 10625839Abstract: A boat includes a boat body, a propulsion unit, a steering wheel that turns about a first turning axis and has a circular or substantially circular shape or an arcuate or substantially arcuate shape about the first turning axis, and an operator unit on the steering wheel including a first operator which is located in a first direction with respect to the first turning axis and a second operator which is located in a second direction with respect to the first turning axis, and that performs a throttle operation and a shift operation on the propulsion unit.Type: GrantFiled: May 7, 2018Date of Patent: April 21, 2020Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Susumu Shibayama, Nobuharu Ota
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Publication number: 20190217921Abstract: A watercraft includes a vessel body, a marine propulsion device and a guide. The marine propulsion device is attached to the vessel body and includes a water stream generator that propels the vessel body. The guide is provided on the vessel body and extends astern of the vessel body and toward a center of the vessel body in a width direction of the vessel body from a position located sideward of the water stream generator. The guide inwardly directs water flowing on one lateral side of the vessel body such that confluent timing of the water flowing on the one lateral side of the vessel body and water flowing on the other lateral side of the vessel body is caused to occur earlier than when the guide is not provided on the vessel body.Type: ApplicationFiled: July 16, 2018Publication date: July 18, 2019Inventors: Susumu SHIBAYAMA, Nobuharu OTA, Takahiro FUJIMOTO
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Publication number: 20180251203Abstract: A boat includes a boat body, a propulsion unit, a steering wheel that turns about a first turning axis and has a circular or substantially circular shape or an arcuate or substantially arcuate shape about the first turning axis, and an operator unit on the steering wheel including a first operator which is located in a first direction with respect to the first turning axis and a second operator which is located in a second direction with respect to the first turning axis, and that performs a throttle operation and a shift operation on the propulsion unit.Type: ApplicationFiled: May 7, 2018Publication date: September 6, 2018Inventors: Susumu SHIBAYAMA, Nobuharu OTA
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Patent number: 10040532Abstract: A boat includes a boat body, a propulsion unit, a steering wheel that turns about a first turning axis and has a circular or substantially circular shape or an arcuate or substantially arcuate shape about the first turning axis, and an operator unit on the steering wheel including a first operator which is located in a first direction with respect to the first turning axis and a second operator which is located in a second direction with respect to the first turning axis, and that performs a throttle operation and a shift operation on the propulsion unit.Type: GrantFiled: March 17, 2017Date of Patent: August 7, 2018Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Susumu Shibayama, Nobuharu Ota
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Publication number: 20180111671Abstract: A boat includes a boat body, a propulsion unit, a steering wheel that turns about a first turning axis and has a circular or substantially circular shape or an arcuate or substantially arcuate shape about the first turning axis, and an operator unit on the steering wheel including a first operator which is located in a first direction with respect to the first turning axis and a second operator which is located in a second direction with respect to the first turning axis, and that performs a throttle operation and a shift operation on the propulsion unit.Type: ApplicationFiled: March 17, 2017Publication date: April 26, 2018Inventors: Susumu SHIBAYAMA, Nobuharu OTA
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Patent number: 8517782Abstract: A marine vessel propulsion device includes an engine, a jet propulsion unit, and a reverse gate. The jet propulsion unit includes a jet port arranged to jet water toward a rear of a hull. The reverse gate is arranged to be capable of being changed in opening degree between a fully closed position of covering an entirety of the jet port and a fully opened position of not covering the jet port at all. The reverse gate is arranged to be moved, between the fully closed position and the fully opened position, to a first partially closed position of only partially covering the jet port and a second partially closed position of only partially covering the jet port and being closer to the fully opened position than the first partially closed position.Type: GrantFiled: December 1, 2010Date of Patent: August 27, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Nobuharu Ota
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Patent number: 8206191Abstract: A water jet propulsion watercraft includes a pair of jet propulsion devices arranged right and left of a hull centerline. Each jet propulsion device includes a jetting unit arranged to jet water, a deflector supported on the hull and arranged to rotate to right and left, the deflector including a forward drive jet port and a reverse drive jet port. Each jet propulsion device includes a bucket arranged to change between a forward drive position and a reverse drive position. The bucket includes a reflecting surface arranged to reflect the water jetted from the forward drive jet port when the bucket is at the reverse drive position, and an auxiliary nozzle including an entrance opened to the reflecting surface and arranged to jet water introduced into the entrance along a hull right/left direction.Type: GrantFiled: December 29, 2009Date of Patent: June 26, 2012Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Nobuharu Ota, Hideyoshi Sato
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Publication number: 20120021659Abstract: A marine vessel propulsion device includes an engine, a jet propulsion unit, and a reverse gate. The jet propulsion unit includes a jet port arranged to jet water toward a rear of a hull. The reverse gate is arranged to be capable of being changed in opening degree between a fully closed position of covering an entirety of the jet port and a fully opened position of not covering the jet port at all. The reverse gate is arranged to be moved, between the fully closed position and the fully opened position, to a first partially closed position of only partially covering the jet port and a second partially closed position of only partially covering the jet port and being closer to the fully opened position than the first partially closed position.Type: ApplicationFiled: December 1, 2010Publication date: January 26, 2012Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Nobuharu OTA
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Publication number: 20110159752Abstract: A water jet propulsion watercraft includes a pair of jet propulsion devices arranged right and left of a hull centerline. Each jet propulsion device includes a jetting unit arranged to jet water, a deflector supported on the hull and arranged to rotate to right and left, the deflector including a forward drive jet port and a reverse drive jet port. Each jet propulsion device includes a bucket arranged to change between a forward drive position and a reverse drive position. The bucket includes a reflecting surface arranged to reflect the water jetted from the forward drive jet port when the bucket is at the reverse drive position, and an auxiliary nozzle including an entrance opened to the reflecting surface and arranged to jet water introduced into the entrance along a hull right/left direction.Type: ApplicationFiled: December 29, 2009Publication date: June 30, 2011Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Nobuharu OTA, Hideyoshi SATO