Makita Battery Pack Patent Granted

ChangeBridge: Patent Grants - Batteries (H01M)

Published March 24th, 2026

Detected March 26th, 2026

Summary

The USPTO has granted a patent (US12586877B2) to Makita Corporation for a battery pack featuring a fusible link plate. The patent describes a specific design for the fusible link plate intended to enhance safety by incorporating a portion with a smaller cross-sectional area.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12586877B2 to Makita Corporation for a battery pack design. The patent specifically details a fusible link plate with a bent shape, comprising a first plate part, a second plate part, and a bent part. A key feature is that the bent part, identified as a first fusible part, has a smaller cross-sectional area than the other parts, designed to enhance safety by acting as a fusible link.

This patent grant is primarily an intellectual property event and does not impose new regulatory obligations on manufacturers. However, it signifies an innovation in battery pack safety technology. Companies involved in manufacturing or designing battery packs, particularly for power tools or similar applications, may wish to review the patent details to understand the scope of Makita's intellectual property in this area, especially concerning fusible link designs.

Source document (simplified)

← USPTO Patent Grants

Battery pack with fusible link

Grant US12586877B2 Kind: B2 Mar 24, 2026

Assignee

MAKITA CORPORATION

Inventors

Kohei Nakatani, Junya Yamaguchi

Abstract

A battery pack may include a fusible link plate having a bent shape. The fusible link plate may include: a first plate part extending in a first direction; a second plate part extending in a second direction; and a bent part connecting the first plate part to the second plate part. The first plate part, the second plate part, and the bent part may be disposed along a first plane that is along both the first direction and the second direction. The first plate part may include a portion having a first cross-sectional area. The second plate part may include a portion having a second cross-sectional area. The bent part may include a first fusible part having a third cross-sectional area. The third cross-sectional area may be smaller than the first cross-sectional area and smaller than the second cross-sectional area.