We were on ORD-NRT and NRT-LAX on JL...had not flown them Trans-Pac in many years, though we did fly a leg or two domestically in Japan with them last summer.
JL's intra-Asia business class isn't bad, either. Seats are the old generation Skyluxe on the 767s, 2-2-2 seating with more pitch and recline than domestic F on AA. I'd put the pitch at about 42-44", with a footrest, etc. the IFE was "Magic-3", slightly better than on the trans-Pac legs, but still nothing to rave about.