Naofumi Sumitani

Title: Innovations and Contributions of Naofumi Sumitani

Introduction: Naofumi Sumitani, based in Itano-gun, Japan, is a distinguished inventor known for his extensive portfolio comprising 22 patents. His work has significantly impacted the fields of light-emitting devices and lead frame technology.

Latest Patents: One of Sumitani's notable recent patents describes a lead frame and a method of manufacturing a light-emitting device. The lead frame is designed with multiple unit structures, an outer frame, extending portions, and coupling portions, allowing for a highly functional configuration. Each unit structure contains a first and second lead portion aligned in one direction, with specific extending portions connecting these leads efficiently. Additionally, his light-emitting device patent details a package with a recess that features a bottom surface equipped with electrodes and a protective element. This design enhances the device's functionality while carefully managing light reflection and emission characteristics.

Career Highlights: Throughout his career, Naofumi Sumitani has made significant contributions while working for prominent companies, including Nichia Corporation and Nippon Sheet Glass Company, Limited. His innovative mindset and dedication to research have led to advancements in technology that are foundational to today's lighting solutions.

Collaborations: Sumitani has collaborated with notable colleagues such as Ryoji Naka and Kimihiro Miyamoto. These partnerships have fostered a creative environment that has enabled groundbreaking innovations in their respective fields.

Conclusion: Naofumi Sumitani's extensive patent portfolio and impactful collaborations highlight his role as a leading inventor in the realm of light-emitting technology and lead frame design. His commitment to innovation continues to inspire advancements that enhance modern technological applications.