Seiko Group‘s patent involves a stator for a timepiece movement with a magnetic plate material and non-magnetic regions made using chromium and laser irradiation. The stator plate has a circular hole for holding a rotor and two non-magnetic regions with chromium bulges. GlobalData’s report on Seiko Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Seiko Group, Treatment progress monitoring was a key innovation area identified from patents. Seiko Group's grant share as of February 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Stator for timepiece movement with non-magnetic regions
A recently granted patent (Publication Number: US11929640B2) discloses a stator for a timepiece movement that includes a stator plate made of magnetic material with a circular hole for holding a rotor. The stator plate features two non-magnetic regions with chromium content heat-diffused into the plate, progressively narrowing from the first surface towards the second surface. These non-magnetic regions also have chromium bulges protruding from the first surface of the stator plate. The patent further details a method for manufacturing the timepiece movement, involving the application of chromium on a base plate, laser irradiation to create non-magnetic regions, and the assembly of the stator plate onto a main plate with recessed spaces accommodating the bulges of the non-magnetic regions.
Additionally, the patent covers a timepiece movement comprising the stator plate with non-magnetic regions and a main plate with recessed spaces for accommodating the bulges of the non-magnetic regions. The non-magnetic regions, mainly composed of chromium, are designed to enhance the functionality and precision of the timepiece movement. Various claims within the patent specify different configurations and features of the stator plate and main plate, including the presence of separate recessed spaces or holes for accommodating the bulges of the non-magnetic regions. Overall, the patent aims to protect the innovative design and manufacturing process of the stator for a timepiece movement, highlighting the importance of non-magnetic regions and chromium content in improving the performance of such mechanisms.
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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.
