Sumitomo Metal Mining Patent for Valuable Metals Production Method

ChangeBridge: EPO Bulletin - Batteries (H01M)

Published March 25th, 2026

Detected April 1st, 2026

Summary

The European Patent Office published patent application EP4484591A1 by Sumitomo Metal Mining Co., Ltd. for a production method of valuable metals. The patent covers processes related to metal extraction and recovery, classified under battery recycling (H01M 10/54) and waste processing (B09B 5/00). The designated states include all EPO member countries.

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What changed

Sumitomo Metal Mining Co., Ltd. obtained European patent publication EP4484591A1 for a method to produce valuable metals. The patent is classified under C22B (non-ferrous metals), B09B (waste disposal), and H01M 10/54 (battery recycling). Inventors include Yamashita Yu, Maeba Kazunari, and Nagakura Toshihiko. The patent was published March 25, 2026.

This is a patent publication notice, not a regulatory requirement. No compliance actions are required from regulated entities. Companies in the battery recycling, metal extraction, or waste processing industries may wish to review the patent claims to assess potential licensing needs or freedom-to-operate considerations.

Source document (simplified)

← EPO Patent Bulletin

PRODUCTION METHOD FOR VALUABLE METALS

Publication EP4484591A1 Kind: A1 Mar 25, 2026

Applicants

SUMITOMO METAL MINING CO., LTD.

Inventors

YAMASHITA, Yu, MAEBA, Kazunari, NAGAKURA, Toshihiko

IPC Classifications

C22B 7/00 20060101AFI20230825BHEP B09B 5/00 20060101ALI20230825BHEP C22B 5/02 20060101ALI20230825BHEP C22B 15/00 20060101ALI20230825BHEP C22B 23/02 20060101ALI20230825BHEP F27D 1/12 20060101ALI20230825BHEP H01M 10/54 20060101ALI20230825BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

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