Hey Antonio,
in Ikebana, it is possible to hide meta information for portfolio items in the Theme Options panel (“Portfolio Page” tab, uncheck the “Display meta information on portfolio item pages” setting). In case you wish to hide the blog post meta as well, you’ll need to add this CSS in the “Style: Add Custom CSS” tab of the Theme Options panel:
.blog .post-meta, .single-post .post-meta { display: none; }
Sincerely,
Andrew / Satori Studio