I have visited many kilns in Japan, so many that I can't recall all of them. I will include the ones I have documented and/or have pictures of. I will add more as I find more records.
Jono-gama
Seika/Shin-gama (しん窯)
BIZEN YAKI (備前)
Tamamura Shogetsu Gama
KARATSU YAKI (唐津)
I did not get to a kiln, but this store in town had products from 35 kilns in Karatsu.
KIYOMIZU-KYOTO YAKI (清水)
Yamato Toen
KODA YAKI (高田)
Koshin-gama
Takada-gama
Seika/Shin-gama (しん窯)
BIZEN YAKI (備前)
Korakuen (Kimura Yukei)
HAGI YAKI (萩)
Tamamura Shogetsu Gama
KARATSU YAKI (唐津)
I did not get to a kiln, but this store in town had products from 35 kilns in Karatsu.
KIYOMIZU-KYOTO YAKI (清水)
Yamato Toen
KODA YAKI (高田)
Agano-gama (上野窯)
KOISHIWARA YAKI
Marudai-gama
Maruwa-gama
KUTANI YAKI (九谷)
Kosen
MIYJIMA/OSUNA YAKI
Kawahara Tosai-gama
OTANI YAKI
Yano Toen
SHIGARAKI YAKI
Ogawa Kenzo-gama
Tanikan-gama
TAKATORI YAKI
Takatori Hon-gama
Takatori Hassan
Takatori Hon-gama
Takatori Hassan
TANBA YAKI
Chindai-gama
Chiyoichi Tokan
Nobori-gama
MASHIKO YAKI
Shimaoka Tatsuzo kiln
Hamada gama ( Hamada Shoji, Hamada Shinsaku, Hamada Tomo)
KASAMA YAKI
Sato Gama
YABAKEI YAKI