"R" represents the first letter of our original main product, Resistors. This was put together with the unit for resistance " ohm". The "R" now also stands for "Reliability". "Quality First" is ROHM's corporate policy.


ROHM Group aims for continuous growth and sustainable society development. We consider CSR to be quality management.

Investor Relations

View IR materials like financial results, stock information, shareholders meetings and more.

Stories of Manufacturing

Connecting People to People and People to the Future

Approach to Quality

Describes various quality initiatives.

Approach to Environment

We have posted the achievement status of our environmental certification and details of our activities.

Approach to Health and Safety

View our Occupational Health and Safety Policy and OHSAS 18001 certificate.

Procurement Activities

Here we present the Basic Policies and requests to our Business Partners concerning ROHM's procurement activities.