“We always put Quality first and provide products that are committed to total customer satisfaction.”

In 1946, KOIKE was founded as a Quartz substrate manufacturer for crystal oscillators. Today, we grew to a leading company producing “SAW wafers”. KOIKE’s SAW wafers are used for RF components mounted on mobile devices such as smartphones and tablets, which supports wireless communication all over the world.

Who we are

Our products might be difficult to see, but always exists close to you.

Mobile devices such as smartphones, tablets and wearables are more and more indispensable to our daily life.

Our teamwork creates high quality and productivity.

In order to provide the highest quality and service, We always work mutually with customers, partners and communities, that leads developing products on our customer-first principle.