I happen to be working in the same area but have not run across the two names you seek. I do however have a complete list of all the men who served in the 442nd RCT and the 100th Btn. I have two Wasano's, a Ramon M. and a Shigeo, who was KIA on 26/Jun/44 in Italy. Both are buried at the Punchbowl in Hawaii.
Go to <http://aad.archives.govhttp://aad.archives.gov> follow the links to WWII. This site will list every man in the service btwn 1939 and 1946.