Norihiro Komada (駒田 徳広, born September 14, 1962, in Shiki District, Nara, Japan) is a former Nippon Professional Baseball infielder. On April 10, 1983, making his major league debut, Komada hit a grand slam off Kazuhiko Migita of the Taiyo Whales. He is the first and currently only NPB player to hit a grand slam in their first career at-bat. Known as "Mr. Grand Slam", he went on to hit 13 grand slams as a player. He is one of 56 members of the 2,000 hit club.
Source: “Norihiro Komada”, English Wikipedia (CC BY-SA 4.0), excerpt