I had a similar problem using the word ” ****” in my domain. ” ****” contacted me and told me to remove site. “*****” is a trademark name and they had all right to do this, however I registered the domain before they did were trademarked.
Needless to say I hired a attorney and I still have to domain.
If your using a company name, you can be in violations of trademarks.
http://www.brandxperts.com is the attorney who I hired and did a excellent job. It doesn’t cost that much to find out if your within your legal rights.