Save Gender Masculine Usage Japanese Scripts 健一, 研一, 賢一, 謙一, etc.(Japanese Kanji) けんいち(Japanese Hiragana) Pronounced Pron. /ke̞ɰ̃.i.t͡ɕi/ [key·simplify] Meaning & History Alternate transcription of Japanese Kanji 健一 or 研一 or 賢一 or 謙一 (see Ken'ichi).