This inventor holds 3 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Kyushu University, Mitsui Kinzoku Company, Limited, Mitsui Minings & Melting Co., Ltd.. Active years: 2025-2026.
Company Filing History:
2 out of 455 
2 out of 21 
1 out of 817 Years Active: 2025-2026
Title: Ken Watanabe: Innovator in Solid Electrolyte Technology
Introduction
Ken Watanabe is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of solid electrolyte technology. His innovative work has led to the development of a unique solid electrolyte assembly that enhances the performance of energy storage systems.
Latest Patents
Watanabe holds a patent for a solid electrolyte assembly that features an anode, a cathode, and a solid electrolyte layer positioned between them. This assembly includes an intermediate layer made of cerium oxide, which contains lanthanum and a rare-earth element, excluding lanthanum and cerium. The solid electrolyte layer is composed of an oxide of lanthanum, and it may also contain a composite oxide of lanthanum and silicon. The intermediate layer is designed to improve the overall efficiency and stability of the assembly.
Career Highlights
Ken Watanabe is currently employed at Mitsui Mining & Smelting Company, Ltd. His work at this esteemed company has allowed him to focus on advancing solid electrolyte technologies. Watanabe's innovative approach has positioned him as a key figure in the development of energy storage solutions.
Collaborations
Watanabe has collaborated with talented coworkers such as Shingo Ide and Kengo Shimanoe. Their combined expertise has contributed to the successful development of advanced technologies in the field.
Conclusion
Ken Watanabe's contributions to solid electrolyte technology demonstrate his commitment to innovation and excellence. His patent and work at Mitsui Mining & Smelting Company, Ltd. highlight his role as a leading inventor in this important field.