Product novelty 29. July 2026

Precision Molded Resin Parts 

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Battery Gaskets
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Medical Application
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HDD
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Insulating Plate for EVs
We produce a wide range of precision molded resin parts, including battery gaskets for smartphones and medical components.
Make Yamauchi your first stop for higher-precision parts shapeable into complex forms, and join a long list of satisfied customers.

Battery Gaskets : Our gaskets for use on lithium-ion batteries are airtight, liquid-tight and insulating, and robust enough to withstand long-term use.

Medical Application : Our molded resin parts for medical applications are made in impeccable, GMP-compliant cleanroom environments.


Insulating Plates for EV Batteries : We make insulation plates in a variety of shapes, and our stringent production control measures ensure they are free from contamination.

Precision Molded Resin Parts : Yamauchi manufactures resin parts that are essential for hard disk drives, such as ultrahigh-precision mechanism parts, in a completely clean environment.