Japan's Finance Ministry's Vice Finance Minister for International Affairs Kanda. He is the guy (its normally a guy, yeah) who will instruct the BOJ to intervene, when he judges it necessary. Often referred to as Japan's 'top currency diplomat'.

Comments:

There is little yen response. This sort of verbal intervention can be of use when the moves are one-sided, and as he says they were last year (you'll recall the sharp yen weakness that turned in late October). But right now, is he just blowing off stream? 'Cause they is no pressing need for them.

usdyen kanda intervention 26 January 2023