They are reportedly 6 and 7 years old, and they attend the Kids International Incorporated school in River Edge.
The alleged abuse happened between last October and this April.
Ichikawa is being held on a $75,000 bond.
NEW YORK AND TRI-STATE AREA NEWS
REPORT A TYPO || GET WIDGET
VIDEO: Eyewitness News || VIDEO: ABC News || VIEWER PHOTOS & VIDEOS ||