In device manager it's listed as "ven_wcom&dev4834&Col04". Interestingly, recent Wacom AES laptops like ThinkPads don't use that device ID identifier. I spoke with a few industry pen folks, and they're guessing it's tech developed in China. Apparently there are hardware pen developers there whose products we never (or so far rarely) see in the US. Who knows for sure until someone actually involved with making the product wants to tell us. Huawei sent me the review loaner used for my review, but they had no pen manufacturer info to share.