Excellent research - thanks. So far, I have found three different spellings for that person- DIMIPLE, DIMPLE, and DIMPLO. It's also interesting that a number of these donations were made to Democrats in key races where control of the Senate was decided - McCaskill, MO and Webb, VA.
FYI: Mr. Hsu almost never spelled his addresses the same way. As if to fool the FEC, which organizes by name anyhow.