Conversation so far:
What has Ryuichi Sakamoto produced?
In 1983, Ryuichi Sakamoto produced Mari Iijima's debut album Rosé, the same year that the Yellow Magic Orchestra was disbanded.
Did Mari Iijima's debut album Rose produced by Ryuichi Sakamoto do well as an album?
Mari Iijima's debut album Rose debuted at number 10 on the charts in September 1983, and she started her career as a singer-songwriter.
What other albums did Ryuichi Sakamoto produce besides Rose?
Ryuichi Sakamoto worked with Imai Miki, co-producing her 1994 album A Place In The Sun.
Besides Rose and A Place in the Sun, did Ryuichi Sakamoto produce others?
In 1996, Ryuichi Sakamoto produced Mind Circus, the first single from actress Miki Nakatani, leading to a collaboration period spanning 9 singles and 7 albums though 2001.
What else is significant about Ryuichi Sakamoto production work besides Rose, A Place in the Sun, and collaboration with actress Miki Nakatani?
Of his experience recording with Ryuichi Sakamoto, Roddy Frame said: He's got this reputation as a boffin.

Question: How did he get that reputation?
Self-contained rewrite: How did Ryuichi Sakamoto get that reputation as a boffin?