# Keiichi Itakura — Patents explained on PatentBrief

Keiichi Itakura has 1 landmark patent explained in plain English on PatentBrief.

- [How Scientists Taught Bacteria to Make Human Hormones](https://patentbrief.org/patent/us/4356270/recombinant-dna-cloning-genentech) — granted 1982
  Genentech's 1979 patent on using engineered DNA to force bacteria to produce human proteins like insulin and growth hormones.

**Full profile:** https://patentbrief.org/inventor/keiichi-itakura

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