Inventor

WATANABE RYOEI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “WATANABE RYOEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOWA ECO SYSTEM CO LTD

3 patents

US12303912B2May 20, 2025

Separation method for valuable resources

DOWA ECO SYSTEM CO LTD1 citations57

US9359659B2Jun 7, 2016

Method for recovering valuable material from lithium-ion secondary battery, and recovered material containing valuable material

DOWA ECO SYSTEM CO LTD1 citations49

US12503747B2Dec 23, 2025

Method for separating lithium

DOWA ECO SYSTEM CO LTD0 citations47

THE JIKEI UNIV

1 patent

US10233099B2Mar 19, 2019

Radioactive cesium decontaminator and method of producing the same, and method of removing the radioactive cesium

THE JIKEI UNIV0 citations30