To print product category name in product description page

Go to catalog/product/view.phtml

<?php $categories = $_product->getCategoryIds(); ?>
<?php foreach($categories as $i => $_category_id): ?>
<?php $_category = Mage::getModel('catalog/category')->load($_category_id) ?>
<a href="<?php echo $_category->getUrl() ?>"><?php echo $_category->getName() ?></a>
<?php endforeach; ?>