Tadahito Iguchi hit his first home run of the season on April 10. He has hit at least one home run every season since his rookie year, including his time in the MLB. He joined Ichiro Suzuki (1993-2015, twenty-three years) and Hideki Matsui (1993-2012, twenty years) as the only players that spent time in both the NPB and MLB to hit a home run in at least twenty consecutive seasons. Iguchi and Matsui began their streaks in their first year.
Iguchi is the seventeenth player in NPB history to hit at least one home run in twenty or more consecutive seasons. He joined Tadashi Wakayabashi (two at forty-two years in 1950) and Katsuya Nomura (three at forty-three years in 1978) as the only players in franchise history to hit a home run in the year they turned forty-two or older.
Source: Sanspo 4/11/2016