Tak Matsumoto
Beginning with "B'z" in 1988, Inaba has, together with guitarist Tak Matsumoto, continued to release new material and tour as part of B'z almost every year since. He has also periodically released solo material, starting in 1997 with the album "Magma", produced whilst B'z were on a brief hiatus. It was one of the albums to receive the "Best Rock Album of the Year" award at the 12th Japan Gold Disc Awards. Unlike in B'z, where he contributes only lyrics, Inaba has composed the music for his solo releases. All his studio albums and singles until now have topped the Oricon music charts. Additionally, the first studio album with 1,001,160 sold copies was the 21st best-selling album of the year, second "Shian" with 438,930 copies was the 39th in 2002, third "Peace of Mind" with 297,103 copies was 48th in 2004, fourth "Hadou" with 177,984 was 38th in 2010, and "Singing Bird" with 107,551 was certified Gold by RIAJ. As for singles, "Tooku Made" with 663,660 sold copies was the 28th best-selling single of the year 1999, "Ki" with 275,957 copies was 25th in 2003, "Wonderland" with 225,229 copies was 36th in 2004, "Okay" with 134,381 copies was 45th in 2010, and "Hane" was certified Gold and was 51st in 2016. His live video recordings also topped the charts, hence cumulatively, according to reported yearly sales and certifications he sold over 3.4 million records.