New processing techniques using lasers are rapidly expanding in the field of resin welding. A provider of laser processing devices, Fine Device pioneered laser resin welding based on its semiconductor laser technology. Laser welding presents various merits over conventional joining methods, such as adhesives, hot plate welding, high frequency welding, vibration welding, and ultrasound welding. We propose solutions that satisfy customer needs, ranging from testing equipment to machinery for production, as a provider full knowledgeable in the technology for upgrading systems.