Company Profile

On March 23, 2020, IRINO KIKO Co., Ltd. inherited all operations of Yamada Koki Co., Ltd., a company that has supported Japan’s manufacturing industry. We have taken over the legacy of more than 70 years of history and over 3,000 units of internal grinding machines produced. While respecting the fundamental design of Yamada Koki’s world-renowned high-precision and high-durability general-purpose internal grinding machines, we are striving to further improve quality.
Japan is currently facing a declining labor force due to an aging population and low birth rates, making the succession of manufacturing technologies a critical issue. At our company, we actively hire local young people and international students who are interested in manufacturing. Through direct guidance from experienced workers and by visualizing knowledge and sharing information in company-wide meetings, we ensure that techniques and know-how are passed on to the next generation.
Our philosophy of “unwavering precision” emphasizes remaining resilient and steadfast in solving problems and taking action, no matter the circumstances. It is our mission to continue creating internal grinding machines that are needed anywhere in the world, at any time.
We promise to continue adapting flexibly to the changes of the times and to overcome the challenges of this new era together with both our long-standing customers and new business partners.
We greatly appreciate your continued support of IRINO KIKO Co., Ltd.

August 2024
Norio Irino,

President, IRINO KIKO Co., Ltd.