I've had some success in battling jet lag. "Scoring" some "mel" on the street after your trip is sort of a quick fix. Probably not the best tactic. I mean, it'll work, but if you want full-on treatment, then here's how.
Pardon me if you know this already. You look to me military, so you've probably hopped around quite a bit. In that case, it's for everyone else with the same situation.
Before your trip, perhaps three of four days, wear a watch, or a second watch (whatever) set to Playa Time. This will tell you the times of your new sunrise and sunset. Start to plan your activities around this, and you should be adapted by the time you hit the tarmac. I even stay indoors, wear dark glasses when it's supposed to be night (but isn't), etc. Dosing with melatonin at this point (at "night") is the most helpful, if you can get it.
Frankly, once you get stateside, loading up with coffee in the morning is the best you can do. Try not to sleep until it's sunset in the US.
That said, your sleep schedule on the playa will be totally fucked up anyway. You'll want to sleep by day and party by night, so your adaptation to Japan time might be fine the way it is.