Hydrogen Storage Material and Container Patent Grant

ChangeBridge: Patent Grants - Batteries (H01M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

The USPTO granted Patent US12590355B2 to SantoKu Corporation covering hydrogen storage materials with a specific alloy composition (LaaCebSmcNidMe) and hydrogen storage containers. The patent, filed August 31, 2021, contains 5 claims for materials with absorption and desorption properties suitable for hydrogen storage applications.

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What changed

The USPTO granted Patent US12590355B2 to SantoKu Corporation for hydrogen storage materials and containers. The patent covers an alloy with the composition LaaCebSmcNidMe where M is Mn or both Mn and Co, with specific elemental ratios: a (0.60-0.90), b (0-0.30), c (0.05-0.25), d (4.75-5.20), e (0.05-0.40). The invention provides inexpensive hydrogen storage materials with suitable absorption/desorption properties for practical hydrogen storage applications.

No compliance actions are required. This is a patent grant notice informing the public of issued intellectual property rights. Companies developing hydrogen storage technology should review the patent claims to assess potential licensing needs or design-around considerations. The patent provides SantoKu Corporation with exclusive rights to the specified alloy compositions and hydrogen storage containers incorporating those materials.

What to do next

Review patent claims to assess whether hydrogen storage products may infringe US12590355B2
Evaluate licensing opportunities if implementing similar hydrogen storage alloy compositions
Monitor for potential design-around opportunities if developing competing hydrogen storage materials

Source document (simplified)

← USPTO Patent Grants

Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus

Grant US12590355B2 Kind: B2 Mar 31, 2026

Assignee

SANTOKU CORPORATION

Inventors

Takayuki Otsuki, Hiroki Hayashi, Yoshiharu Takata, Shinji Ikeuchi, Noboru Nishigaki

Abstract

Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:

LaaCebSmcNidMe (1)

wherein M is Mn or both of Mn and Co, a satisfies 0.60≤a≤0.90, b satisfies 0≤b≤0.30, c satisfies 0.05≤c≤0.25, d satisfies 4.75≤d≤5.20, e satisfies 0.05≤e≤0.40, a+b+c=1, and d+e satisfies 5.10≤d+e≤5.35.