Though most of the world loves labels, it's hard to give one to the pottery of Norio Kamiya. Many collectors of Japanese pottery feel more comfortable if they know that this style is called Kutani or that one Arita or that this potter has won this award and exhibits at such-and-such gallery. Only after many questions are answered does the potential purchaser decide if the pot comes home or stays; it's an intellectual decision.
Yet though in Japan labels play a big part in collectors' minds, very few good collections were ever built this way. It's much better to listen to your heart and buy what appeals to you, no questions asked.
With that said, leave your questions at home and go see Kamiya's colorful pottery exhibition, at Ginza's Wako Hall until May 31.