It's Japanese so it's going to be two syllables, but it's definitely not clear from English spelling what the last vowel is supposed to be or which syllable gets the emphasis.
I sort of feel that referring to an old thread doesn't help since there's no way to tell what experience the authors speak from unless you know them. I asked about "Porsche" once at an auto show - since it had come up as an example in my German class in high school - and the old guy from Germany said "You relax on your porsh but you drive a Por-sche." That guy, I'll believe.
My boss has a name that clearly used to have an u-umlaut and now has a ue, but he pronounces it with an ee noise and not an ue noise as he spells it, and he's correcting people all the time. He says, "I know how to pronounce my own name. You don't get to tell me I'm wrong."
So I guess I'm looking for someone to say "That's how Mr. Tange pronounced it."
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Genesis 49:16-17