Taking advantage of LED's features and our original packaging technology, we have improved light-extraction and heat-radiation efficiency, while helping make devices more compact and functional.

We will find innovative uses for plastic, rubber and other materials and pursue optimal applications based on our expertise in making products waterproof, dust-proof, thinner, lighter and more compact.

KOHA's unique circuit design technology meets demand for intelligent electronic equipment.
We are responding to the need for greater integration, higher speed, lower power consumption and reduced noise.

KOHA boasts highly reliable software development technologies, accumulated through extensive experience in control program design.
Based on these technologies, we are making products more functional with higher added value.

Using light collection, reflection, diffusion and other technologies, we can effectively control light produced by LEDs.
In this way, we are responding to market needs for illumination and communication.