Corporate Overview

MORITASEMI Ltd. is a global leader in the provision of fiber optic solutions and optical transceivers, skillfully combining state of the art compound and silicon semiconductor technology with inventive small-scale integration. We pioneered highly efficient LED and Laser diode, and many other innovative technologies that transform our customers’ communications networks in multi-discipline market segments of power & energy, industrial, transportation, medical, mil/aero and consumer.


A global multinational company, MORITASEMI Ltd. is jointly headquartered in Japan. America, Europe, China with a global footprint of distribution and logistics teams. In Japan, our R&D team comprises PhD researchers who are respected members in their fields. our world-class manufacturing and quality systems are based on high-volume automated production and testing.


Providing discrete devices to full-fledged optical communication solutions at board level,our dedicated teams bring a wealth of knowledge in optics, semiconductor, light sources and receiver design. We enable customers to implement solutions with commonly available components or custom designed solutions. Whether you require optical communications for a high precision volume manufacturing systems, provide millions of consumers with reliable bandwidth in their homes or manage sophisticated new generation smart grids, just tell us your needs.