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.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Jul. 14, 2022
Japan Radio Co., Ltd., Tokyo, JP;
National University Corporation Tokyo University of Marine Science and Technology, Tokyo, JP;
Takanori Akiike, Tokyo, JP;
Jun Satsumabayashi, Tokyo, JP;
Kengo Toeda, Tokyo, JP;
Hayama Imazu, Tokyo, JP;
Ruri Shoji, Tokyo, JP;
Abstract
Provided is a navigation assistance device capable of obtaining an obstacle zone by target in consideration of an allowance. A navigation assistance device for obtaining an obstacle zone by target from a relationship between an own ship and a target ship includes a margin acquisition unit that acquires a margin indicating the degree of allowance, and an arithmetic unit that obtains a margin position which is a position separated from at least any of the bow or stern of the target ship in a target occupied space set with reference to the position of the target ship by a distance determined according to the margin, obtains a collision course based on a position determined according to the motion vector of the target ship with reference to the margin position, and calculates the obstacle zone by target based on the obtained collision course.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile