Just to add... Even if the final vowel is silent... it si not uncommon for the "u" in the middle of the words to remain silent or ommited...

So don't just take it for granted that the way you listen to the name it is the correct way to write it or to even pronounce it...

How do you say Smith Japanese? You spell it and even pronounce it as "Sumisu"...

My recommendation is to learn some Katakana, Hiragana, even Kanji and then tell us what you think you ignorant