Daunia it is more complicated than to make those kind of statements. They all made some impeccable components and they all made some stinkers. The formation of Accuphase came about because one of the three founders of Trio(three) fell out with the other two over the fact that he wanted to make no compromise components and the others wouldn't go along with that.
If there was one Japanese major that never compromised(ie had a budget line of components on the market) it was Accuphase.
Look at where all of the other Japanese majors are now. They are either defunct, scrabbling to resurrect their brand's former glory, divesting themselves of the former brand name in order to have any credibility as serious hi-fi manufacturers or just totally abandoned the hi-fi market all together). Teac went Esoteric. Pioneer went TAD. Luxman almost disappeared before making another push. Yamaha has belatedly attempted to reclaim their brand. Sony dribbled out Espirit gear for decades but really was more interested in mid-fi to pay the bills. Denon had their ultimate line but paid the bills with mid-fi offerings.
Accuphase is the only one that never released mini systems and televisions and portable listening devices with a cursory nod to the High End as an exercise in maintaining reputation in their Home Market. For decades the best Japanese gear was really an attempt to be seen by the elite customers in Japan as serious. The West was merely the beneficiary of that attempt if it was offered internationally. The Gaijin are not held in the highest esteem by the Divine Race. They are tolerated and utilised where necessary. That's why there is a mountain of top end Japanese gear that is seen as 'invisibilia' in the West or outside of Japan. We were never meant to be offered it.