- Bats Right, Throws Right
- Height 6' 1", Weight 195 lbs.
- High School Waseda Jitsugyo High School
- School Hosei University
- Born October 25, 1964 in Ota, Tokyo Japan
Played for Japan at the 1988 Olympics and the 1988 Baseball World Cup. He led all pitchers in the 1988 Cup in strikeouts (32 in 27 1/3 IP), beating out the likes of Andy Benes, Ben McDonald, Charles Nagy, Jim Abbott, Hideo Nomo and Orlando Hernandez. Ishii went 3-0 with a save and a 0.99 ERA. He allowed only 2 walks and 15 hits. He joined Abbott as the tourney's All-Star pitchers. He tried to save the semifinals after Nomo faltered in the 8th but allowed a single, triple and a balk without retiring anyone in the loss to Cuba that eliminated Japan. In the 1988 Olympics, he was 2-1 with a 1.90 ERA, good for 6th in ERA behind James Figueroa, McDonald, Tetsuya Shiozaki, Jesus Feliciano and Parris Mitchell.