In 1905, Shoraku's grandfather, the Nishikide decoration master Kichinosuke Sasaki, opened the Shoraku Kiln in front of the gates of Kiyomizu-dera Temple with the plan of making raku ware, only to later relocate the business to the valley of Kameoka, Kyoto. The Shoraku Kiln has taught three generations up until now. Shouaku, the second oldest son, together with the the third oldest son, continues to make pottery while gathering research on raku ware. He is also active as the purveyor of Daitoku-ji Temple.
The Fourth Raku - Ichinyu (1640-1696)
The son of the Third. Named Saheei, later Kichizaemon. He tried to follow the First in style, while incorporating his father's techniques. A glossy shine found within subdued colors is characteristic of his style.
Raku initially called Ima-yaki, later were renamed juraku-yaki. Yaki means Ware. Raku has been invented maybe near the Jurakudai Palace thats why they gave that name.Sen no Rikyu 千利休 lived inside for a while. Only later Juraku-yaki was abbreviated as Raku-yaki. Tanaka Chōjirō (長次郎) created a new way to make pottery. And birds you have in your big yunomi were often an important figure for the promotion of the Chôjirô tea bowls. I do not know if your Raku ware are named Muichimotsu, the "Emptiness" . Are similar to an Oguro one, but we need a Life time experience and i need to handle...to see...in terms to give you more informations. Anyway.... one day Mr. Chôjirô met Sen Rikyû dressed with a suit with a symbol that meant maybe raku.
Thats why today u can say today Raku ware even the whole story is described in google in different way-
Chojiro Style Tanaka Chōjirō (長次郎) (1516-?1592) is distinguished as the first generation of Raku ..
(About Raku ware)
The term of "Raku" was derived from the site where clay was dug in Kyoto in the late 16th century and is found in Kanji character meaning "enjoyment" or "ease."
For 15 generations it has been the title and seal used by a lineage of potters whose work formed the central tradition in Japan. This lineage believes that 'Raku' refers to the potters who use the technique, not the technique itself. In 16th century, the first of these potters, Chojiro is said to have come under the patronage of the Japanese tea master , Sen-No-Rikyu. According to legend, in 1598, the ruler, Hideyoshi Toyotomi, after Chojiro's death in 1592, bestowed upon his adopted son, Jokei, a golden seal with the written symbol "raku."
Both the name and the ceramic style have been passed down through the family to the present. After the publication of a manual in the 18th century, raku ware was also made by numerous workshops in and around Kyoto: by amateur potter tea practitioners and by professional and amateur potters around Japan.
Raku ware marked an important point in the historical development of Japanese ceramics, as it is the first ware to use a seal mark and the first to focus on close collaboration between potter and patron. Other famous Japanese clay artists of this period include Donyu (1574-1656), Hon-Ami Koetsu (1556-1637) and Ogata Kenzan (1663-1743).