Here's the company Hidaka Washi mentioned in the article: https://www.hidakawashi.com/jp/paper-TENGU/index.html They make "tengu jo-shi" (典具帖紙), the world's thinnest paper, also called "the wings of a Mayfly". Around the beginning of the 20th century they achieved a thickness/thinness of 0.03 millimeters. The paper became popular for typewriter paper, as well as napkins, wrappers for precious stones, coffee filter, l…
while we're on thin and japan companies, youtube taught me about Disco, the wafer slicing disc company. Such a "trivial" problem in definition yet very impressive when you think about it.
Huge contrast to dark pattern based websites dedicated to selling stuff to consumers.
I guess they just don't bother since it'll make no difference to their bottom line. They're well known in their niche and probably as the only go-to solution for this kind of problem, I imagine the likes of Intel and TSMC have them on speed dial so their products sell without marketing or fancy websites.