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:
Sep. 24, 2024
Filed:
Jul. 12, 2021
Nof Corporation, Tokyo, JP;
Futaba Corporation, Mobara, JP;
Kohki Uchida, Aichi-ken, JP;
Naoto Yanagi, Aichi-ken, JP;
Toshiyuki Ogura, Aichi-ken, JP;
Kohichi Shimazaki, Mobara, JP;
Kazuhito Watanabe, Mobara, JP;
Takafumi Komoda, Mobara, JP;
NOF Corporation, Tokyo, JP;
Futaba Corporation, Mobara, JP;
Abstract
A wireless detonation system () includes a blasting operation device (), a detonator (), and a relay device (). The blasting operation device () is disposed at a distance from a blasting face () and wirelessly transmits a first downstream signal at a first frequency. The detonator () is loaded in a blast hole () in the blasting face (), and has a receiving coil () for wirelessly receiving a second downstream signal at a second frequency lower than the first frequency. A relay device () includes a first transmitting-receiving antenna () that wirelessly receives the first downstream signal, a relay processor () that wirelessly receives the first downstream signal and processes it into the second downstream signal to be wirelessly transmitted at the second frequency, and a second transmitting-receiving antenna () that transmits the second downstream signal. The second transmitter-receiver antenna () is loaded into an insertion hole () in the blasting face () aligned with the blast hole ().