IR Technical Education Institute will hold an online seminar for engineers and researchers facing challenges in scaling up functional films and dealing with defects or production issues. The seminar offers a systematic way to learn the theory and practical on-site know-how of slot-die coating. Using diagrams and graphs, it will deepen participants’ understanding of coating phenomena, while exercises and quizzes will help them acquire criteria for judging whether coating is feasible and the key points of troubleshooting. In film development and manufacturing, defects and problems directly affect productivity and quality. At the same time, information on coating often has gaps: academic papers can be difficult to apply in practice, while on-site information tends to be know-how-heavy and hard to organize into a complete picture. There is a need to understand the causes of defects that emerge during scale-up and mass-production testing from both theoretical and practical perspectives, and to acquire reproducible decision-making criteria. Seminar overview: Seminar title: Optimization and High-Precision Control of Manufacturing Conditions for Slot-Die Coating Format: Online lecture via Zoom Date and time: Tuesday, June 30, 2026, 13:30-16:00 Fee: 19,800 yen, tax included Instructor: Nobuo Hamamoto, Representative of the Roll To Roll Research Group Course overview: This seminar explains the theory and know-how of slot-die coating in connection with on-site decision-making and condition design. It also covers scale-up issues, including common challenges in development, pilot production, and mass production; differences between laboratory work and Roll to Roll processes; and coating defects and causes that become apparent in mass-production testing. Seminar program: 1. Introduction - Coating and drying in development, pilot production, and mass production - Products using films, film elements, and structural elements such as thickness and number of layers - How to determine