Kenji Jojima has been swinging a pretty hot bat this month. So far through to the 19th, Jojima is 21-for-52 (.404) with 4 doubles, 3 homers, 10 runs, 13 RBI, and a 1.119 OPS. Jojima also has 7 multi-hit games this month (including two 3-hit games), plus he's currently in the midst of an 8-game hitting streak.
Takashi Toritani is also doing pretty well this month. Through the 19th, he's 25-for-62 (.403) with 5 doubles, 2 homer, 16 runs, 8 RBI, and a 1.067 OPS. Toritani has 8 multi-hit games this month, including one 4-hit game and three 3-hit games.
And don't forget Takahiro Arai: 23-for-61 (.377), 13 R, 5 2B, 4 HR, 19 RBI, 1.082 OPS.