No, not in the sense of the Quebec conference and others. In fact direct co-operation in any form was basically nill between the Axis powers due to both distance and Allied command of the Sea. The Allied control of the Suez and the barely noteworthy German surface fleet meant that breaking through to the Indian Ocean was not a possibility, and thus the necessary travel of top individuals was out of the question by and large.

There was, however, contact - especially in the years leading up to WWII. Matsouka, the Japanese Foreign Minister, visited Germany with great pomp and circumstance. There was also, pre-war, not insignificant Japanese military attaches to Germany. One of the more famous examples being Yamashita, the architect of Japanese victory in the Malay peninsula and Singapore.

Also of note was the "Monsun Gruppe"; U-Boats and Italian submarines, mostly long range Type IXs, that operated in the Far East. Although on paper they were co-operating with the Japanese directly, in reality it was mainly only limited logistical support. To avoid confusing, the German submarines were ordered to avoid any aircraft and other submarines, even if they were believed to be Japanese, to avoid fratricde. Far from true co operation.