# Koichi Mizuchima — Patents explained on PatentBrief

Koichi Mizuchima has 1 landmark patent explained in plain English on PatentBrief.

- [How Lithium-Cobalt Battery Cathodes Were Invented](https://patentbrief.org/patent/us/4302518/lithium-ion-battery-cathode) — granted 1981
  This 1981 patent details the chemistry behind the lithium-cobalt oxide cathodes that power almost every modern smartphone, laptop, and electric vehicle.

**Full profile:** https://patentbrief.org/inventor/koichi-mizuchima

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._