| Bumpy Urushi is one of the veteran producers who has been active since the early days of VOCALOID boom. He mainly produces trance music, but he can also perform the cello and the Okinawa samisen.
He is also known as Yakiimo-P (ヤキイモP, lit. Sweet Potato-P), a P-name given to him after the song "Yakiimo", which he made for Miku, however he doesn't use this name very often. He has his own YouTube channel named "bumpyurushi". However, it has less works uploaded compared to his Nico Nico Douga channel.
He is a known programmer as he is responsible for the creation of the "SequencerPlus" series which includes the "Lily Sequencer" (included in the DVD Anim.o.v.e 02) and the "YuyuSequencer" of Yuzuki Yukari.
He has produced albums in the past under his own independent label called "BumpyRecords" (together with Nagimiso.SYS).
He is currently a part of Vocalomakets, and is a member of a band called "1mm♪".