The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 17, 2026

Filed:

May. 15, 2023
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;

Inventors:

Satoru Hamada, Shizuoka, JP;

Akihiro Onoue, Shizuoka, JP;

Toshio Suzuki, Shizuoka, JP;

Masaru Suemori, Shizuoka, JP;

Yoshiyuki Kadobayashi, Shizuoka, JP;

Manami Oyama, Shizuoka, JP;

Makoto Mizutani, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 20/10 (2006.01); B63B 79/40 (2020.01); B63H 20/00 (2006.01); B63H 20/12 (2006.01);
U.S. Cl.
CPC ...
B63H 20/106 (2013.01); B63B 79/40 (2020.01); B63H 20/12 (2013.01); B63H 2020/003 (2013.01);
Abstract

A marine vessel includes a hull, left and right propulsion devices attached to a stern of the hull, left and right drive units to change a rotation angle of the left and right propulsion devices about left and right tilt shafts, and to set an angle at which a position of a lower portion of the left and right propulsion devices becomes highest as a maximum rotation angle, left and right lift mechanisms to change a vertical position of the left and right propulsion devices with respect to the hull, and a controller configured or programmed to function as a judging unit to judge whether or not a displacement in a roll direction of the hull has occurred, and a control unit to control the left and right drive units and the left and right lift mechanisms.


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