just thought i might ask here since there might be some professional graphics designers on this thread...
I would be really surprised if HPI used a font as is from a font factory. Typically, in a logo and particularly with a company of HPI's size the designer/artist will use a base font and alter it, not too mention there are literally thousands of fonts that may look similar but the metrics just slightly different. In addition, a font on windowz and the exact same font on a mac will align and kern differently (yes, the exact same font).
Basically I would doubt that you would be able to match exactly what HPI has logo wise but because there are literally hundreds of fonts that look similar you can match it close enough without it being really noticeable.
what did you want it for?