If the leaflet is directed at native English speakers, but the publishers would also like to alert the target audience to how it is pronounced in Japanese, then I would include a small explanation to that effect in parentheses, following the 'English' name.
For example, you could say:
"The Japan Ocean Hotel & Golf Club (known in Japanese as the 'Nihon Ohshan Hoteru & Gorufu Kurabu'), is a ..."
or alternatively,
"The Japan Ocean Hotel & Golf Club (which is pronounced as 'Nihon Ohshan Hoteru & Gorufu Kurabu' in Japanese), is a ..."

I *think* this is what you were asking about, but it was a little unclear.