GENROKU 源六
Genroku Tominaga (1859-1920) was an important figure in the Japanese porcelain world of his time. He began Genroku Studio (Genroku gama in Japanese) during Meiji period with the goal of producing highest quality porcelain in the traditional manner of Imari from the 18th century.
His roots and traditional techniques could be traced back to one
of the oldest kilns in the early Imari History which was called "Ureshino
Yaki". The earliest Ureshino Yaki was produced by a group of potters who
lived and worked in Ureshino area a bit south of Arita starting in
the late 16th to early 17th centuries. The Ureshino Yaki potters operated under the protection of Lord
Nabeshima in the mid 18th century, and produced porcelain ware including
sake bottles called " Ureshino Tokkuri". Toward the end of Feudal Edo to the dawn of Modern Meiji, the
production of Ureshino Yaki was declined both in quantities and qualities and
finally ceased its work at the beginning of the Meiji. Later in the mid-Meiji, Genroku Tominaga revitalized
this kiln
and it was named " Genroku" gama. After his death, his sons continued the kiln
, but they had a difficult time. Genroku kiln lasted until 1934.
KORANSHA 香蘭社
KORANSAHA was started by Fukagawa Eizaemon, Fukaumi Suminosuke,Tsuji Katsuzo,Tezuka Kamenosuke & his brother Takeji in Meiji 8th ( 1875 ) to produce mostly export porcelain ware to Europe & America. The company continues its production until today leading Japanese porcelain industry with its superb quality and beautiful china.
SEIJISHA 精磁社
SEIJISHA was founded by five of the original members of Koransha. The five were Fukagawa Eizaemon,Tezuka Kamenosuke,Tsujii Katsuzo, Fukaumi Suminosuke & his brother, Takeji. They left the Koransha company after a business dispute with Fukagawa Eizaemon and started their own company in 1879. With modernizing its techniques and management of the company system , Seijisha Company was able to make high quality and beautiful porcelain ware for the Western market and increase overall the volume of export from Japan. Unfortunately it only lasted about 10 years because of the decline in the export trade and Fukaumi's death. Tsuji left the company soon after his partner's death. Seijisha was a symbol of Japanese modern porcelain industry in Meiji period and left an important mark in the history.
Zoshuntei 
Zoshuntei was a trade name for porcelain ware made by Hisatomi Yojibei Masayasu ( 1812 - 1878). In 1842 Saga Daimyo, Lord Nabeshima granted Masayasu a permission to export porcelain ware to oversea , mainly to Holland. He helped to revise porcelain productions in the region's many kilns and exported beautiful Imari porcelain ware. His work contributed greatly to modern Meiji Japan's porcelain industry.
His younger brother, Yohei Masaoki ( 1832 - 1871) succeeded him in their family business. He expanded the company and became a very important figure not only in Saga but New Meiji Japan. Unfortunately, he died in shipwreck in northern Japan. The company ceased its business in 1926.