Nippon Telegraph and Telephone had 14 patents in robotics during Q1 2024. The Nippon Telegraph and Telephone Corp filed patents for crewless aircraft capable of accurately estimating their position inside manholes, a storage device for gripping and storing unmanned aerial vehicles, a storage device with a curved surface for moving UAVs, a storage device that can be installed in manholes, and a propeller guard with protrusions for protection. GlobalData’s report on Nippon Telegraph and Telephone gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Nippon Telegraph and Telephone grant share with robotics as a theme is 42% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Unmanned aerial vehicle and control method therefor (Patent ID: US20240085928A1)

The patent filed by Nippon Telegraph and Telephone Corp. describes a crewless aircraft designed for inspecting the interior of manholes. The aircraft includes a camera sensor to capture images of the manhole opening, rangefinders to measure distances within the manhole, and a control unit to estimate the aircraft's position based on recognition information from the camera sensor and distance information from the rangefinders. The aircraft is equipped with ultrasonic or laser sensors, strategically positioned for accurate data collection within the manhole.

The method of controlling the crewless aircraft involves estimating its position based on recognition information of the manhole opening and distance measurements obtained from the rangefinders as it navigates through different parts of the manhole. The process includes steps such as estimating position when transitioning between above-ground areas and different sections of the manhole, as well as when flying within the body part of the manhole. By combining image recognition and distance data, the aircraft can accurately determine its position even in challenging environments like manholes, ensuring efficient inspection operations.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.