The Joints — Precision Gearing & Reducers · The Embodied Stack — Robotics
6324.T
Harmonic Drive SystemsForeign listing — not directly tradable in a US brokerage. Editorial detail only.
Inventor & ~70% global share of harmonic drives — the joint-of-record for every modern robot wrist
What they do
A Japanese mid-cap that invented the harmonic drive in the 1960s and still owns roughly 70% of the world market . Every Tesla Optimus prototype, every Figure 02, every Boston Dynamics Atlas, every Agility Digit uses harmonic drives — and most of them ship from this one factory in Shizuoka. Customer list is essentially a who's-who of humanoid + cobot makers globally.