Konishi's current activities are through his company readymade entertainment and his record label 524 records (a play on words from Konishi's name, as the numbers 524 can be read ko-ni-shi in Japanese using goroawase).
He has written, produced and arranged in collaboration with many artists, such as Unicorn, Towa Tei, Mari Natsuki, Cornelius, Yumi Yoshimura of Puffy AmiYumi, Alisa Mizuki, Akiko Wada, SMAP and Mika Nakashima.
In addition to remixing individual tracks for a wide variety of artists for inclusion in their own releases, Konishi has been a prominent figure in several remix-only projects.
In 2003, he introduced Franco-English pop singer-songwriter MeeK to the Japanese public by writing an introductory essay on MeeK's debut album Psychotique, released on the Indie Tokyo record label MINF.
Konishi produced a video game called Beatmania – The Sound of Tokyo, for Konami's long running Bemani series.