I'll be interested to read the replies for this question.

I have never heard of a "Japanese Hotel" in Waikiki. The staff anyplace I have stayed has always appeared Hawaiian.

Wow, suze, that is amazing considering the demographics of the island have about %45 of the population defined as asian and only about %8 being native hawaiian/pacific island. Not saying I don't believe you, but I think you don't have a clear vision of the staff where you stay.

I don't know of a hotel that primarily caters to a Japanese clientele.

I know that Morimoto and Nobu and Kaiawa, Chibaken, have outposts on Oahu so checking out those restaurants might give you an idea of more Japanese geared lodging. But I honestly don't think you will find a mostly Japanese staff anywhere in Hawaii. It is a melting pot of cultures and although the 90's had a rush of Japanese owned properties, but then their economy tanked. Most high end resorts have at least a few members of Japanese or Japanese speaking staff in the management to cater to tourists.

Now I'm hungry for Japanese breakfast!

<about %45 of the population defined as asian>

Fine I don't disagree. I shouldn't have used the word "Hawaiian" because I certainly did not mean pure blooded 100% Hawaiian royalty, rather the ethnic mixes that appear most common in the locals there.

While Japanese falls under the "asian" category, all "Asians" are certainly not Japanese.

So let me rephrase my observation for you Lookin_Glass...

I have never stayed at a hotel where the staff or guests were primarily Japanese. I have never once had a Japanese maid cleaning my hotel room. Better?

I live in Seattle. Believe me I can usually correctly identify ethnic origins of people. I can visually tell the various pacific islander and asian countries one from the next.

That said, there are always about a zillion Japanese tourists in Waikiki so they must stay somewhere.

Sansei at the Marriott might fill part of your wish list http://www.marriott.com/hotels/hotel-information/restaurant/hnlmc-waikiki-beach-marriott-resort-and-spa/

I think the Oceanarium at the Pacific Beach is popular with Japanese visitors http://www.pacificbeachhotel.com/dining/oceanarium

The OP's question is a little weird, but I will answer it on the assumption it is a serious inquiry.

Many of the larger hotels (Hilton Hawaiian Village, Pacific Beach, Marriott, Hyatt Regency, Sheraton) will have sizable numbers of Japanese tourists, but there is no one hotel whose guests and staff are primarily Japanese. BTW, I am assuming you are talking about Japanese guests and staff from Japan, and not local Japanese residents, correct?

The Hawaii Prince always has a number of Japanese tourists, I think partially because they have their own golf course out on the ewa side of the island and they run a shuttle out there for their guests.

There are no good beaches to snorkel at in Waikiki IMO.

If you want to eat Japanese food 3 times a day, you don't need to limit yourself to the restaurants/room service that your hotel provides. Waikiki is chock full of Japanese restaurants.

I thought of another way you could research this. I've noticed certain hotel websites had options other than English for their websites. Look for ones in Japanese might be your first clue.

interesting By Line "Waikiki around Christmas" when really it is about Japanese hotels.

Many Japanese tourists prefer western or Hawaiian style hotels. Several of the hotels have Japanese restaurants have good Japanese restaurants and/or Japanese food on the room service menu. But Japanese themed rooms or service? Never heard of one.

The ones that come to my mind right away are the New Otani Kapiolani, the Waikiki Parc (I think this is the one with Morimoto) and the Waikiki Prince, with the Japanese buffet. I used to live in Japan and they seem to indicate the style of Japanese hotels to me (may even be Japanese owned/managed), but if all you want is Japanese food, there are plenty of places to get that all around Honolulu so I don't think you'd need to seek out a place where there is only Japanese dining in the place you stay.