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Sanji Miyagi

Patent Attorney

Shobayashi International Patent and Trademark Office

Sanji Miyagi is a Patent Attorney with Shobayashi International Patent and Trademark Office. He is experienced with patent matters relating to storage systems, production planning systems, electrocardiographic devices, sterilization devices, automatic door systems, manufacturing methods for heat-generating plate materials, and antennasfor RFID.

Recent Articles by Sanji Miyagi

Recent Case Law on the Extraterritorial Reach of Japanese Patents

On July 29, 2022, a Japanese Internet service company published a press release that  surprised IP practitioners in Japan. DWANGO INC., the appellant and the plaintiff, lost patent infringement litigation against FC2, Inc., a U.S. based content provider, and another party, (FC2), at the Tokyo district court in September, 2018. The press release announced that DWANGO won over FC2 in the appeal at the Intellectual Property High Court (IPHC), which is similar to the U.S. Court of Appeals for the Federal Circuit in the United States. The IPHC determined that, while respective programs at issue in the present case were transmitted from servers outside Japan, it would be substantially unjust if liability for patent infringement could be easily avoided by locating a piece of equipment, such as a server, outside of Japan in today’s digital society.