Japan, June 23 -- Seiko Epson Corporation announced that the Invention of a Compact and Cost-Effective Piezoelectric Inkjet Printhead Structure (Japanese Patent No. 5958568) has received the WIPO Prize at the 2026 National Commendation for Invention (sponsored by the Japan Institute of Invention and Innovation).This is Epson's first WIPO Prize. It is also the company's fifth recognition at the National Commendation for Invention since 2019 and its first in two years following the Prize of the President of the Japan Patent Attorneys Association in 2024.A ceremony was held on June 15 at The Okura Tokyo, Minato Ward, Tokyo.The National Commendation for Invention is held for the purpose of encouraging and fostering inventions and contributing t...