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MIRISE Technologies

Japanese semiconductor joint venture developing next-generation automotive semiconductors.

Last updated September 11, 2026

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Overview

MIRISE Technologies is a Japanese semiconductor joint venture established on April 1, 2020. It combines Toyota's mobility perspective with Denso's automotive expertise to develop next-generation automotive semiconductors for electrified and autonomous vehicles. Its name stands for "Mobility Innovative Research Institute for SEmiconductor Technologies." The company is owned 51% by Denso and 49% by Toyota Motor Corporation, and its business covers research and advanced development of automotive semiconductors and development of electronic components using semiconductors.

History

MIRISE Technologies was established on April 1, 2020. The company was formed by combining technologies cultivated by Toyota and Denso, with the aim of accelerating development of next-generation automotive semiconductors that are key to technological innovation in electrified and autonomous vehicles. Its history page traces Denso's semiconductor work back to the opening of an IC research laboratory in 1968, and Toyota's semiconductor business to a new project started in 1985, with 2μm CMOS mass production beginning in 1990 at the Hirose plant. In 2018, mass production began of the SiC power semiconductor-equipped FC bus "SORA," jointly developed by Denso, Toyota, and Toyota Central R&D Labs. MIRISE Technologies was established in 2020 to consolidate the two companies' technologies and promote innovative semiconductor research for the CASE era.

Products and positioning

Combines Toyota's mobility perspective and Denso's automotive expertise to develop next-generation automotive semiconductors.

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