There have been several rulings in court cases relating to the personal use of corporate owned property. Generally, in the situation you have described, the shareholders have been found to have received "dividend income" or "compensation income" if they have had the use of corporate property without having compensated the corporation for that use.
The assets do not "pass through" ownership to the shareholders; the corporation is a separate legal entity.
This is WELL-ESTABLISHED tax law. Any time that you attempt to attribute ownership of corporate assets to the individual shareholders you not only put yourself at risk for additional tax problems, you put the corporation at risk for having the corporate veil pierced and, thereby, risking the entire setup.
jon@jonacpa.com
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