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    Winning lawsuit at the IP High Court on rescission case of JPO trial decision

With respect to a series of disputes regarding patent invalidity, on January 25, 2011, the IP High Court upheld the JPO's decision to dismiss.

In this series of disputes, Mitsuru Shishido co-represented the patent holder and initiated an action against the JPO's decision, and was successful in getting the JPO's decision overturned in the IP High Court and in the JPO's restarted trial proceedings.
The opposing party appealed against the JPO's decision in the IP High Court, however, the IP court upheld the JPO's decision to dismiss.

The contested issues were inventive steps of function and effect.