Shinken （真剣） means two things in Japanese: a real blade — and being dead serious.
Shinken Checker is run from Tokyo, Japan, by a Japanese researcher. The idea is simple: “Japanese” has become a marketing word overseas, and some of the brands using it have never been near Japan. Because our sources are Japanese — company profiles, official shops, domestic retailers — we can check claims that are hard to verify from outside Japan.
We started with kitchen knives, where the gap between the marketing and the facts is widest, and where genuinely Japanese knives (made in places like Tsubame-Sanjo, Seki, and Sakai) are often no more expensive than the lookalikes.
This site earns money through affiliate links to products we have verified (see our Affiliate Disclosure). That never changes a verdict: the checks come first, the links second.
Corrections and tips are welcome — if we got something wrong, we want to know. Seriously. (Yes — maji.)