Hiroyasu Kaseya

Title: Hiroyasu Kaseya: Innovator in Light Emitting Technology

Introduction

Hiroyasu Kaseya is a prominent inventor based in Suwa, Japan. He has made significant contributions to the field of light emitting devices and projectors. With a total of 17 patents to his name, Kaseya has established himself as a key figure in technological innovation.

Latest Patents

Kaseya's latest patents include a light emitting device and a projector. The light emitting device features a laminated structure with multiple columnar parts. This design incorporates a first semiconductor layer, a second semiconductor layer with a different conductivity type, and a third semiconductor layer that contains a light emitting layer. The second semiconductor layer is designed with a first portion and a second portion that surrounds the first portion, ensuring lower impurity concentration in the second portion. Additionally, his light source module includes a light emitting element with a resonator made of a photonic crystal structure. This module also features a polarization conversion element that effectively manages polarized light.

Career Highlights

Throughout his career, Kaseya has worked with notable companies such as Seiko Epson Corporation and Sophia School Corporation. His work has focused on advancing technologies related to light emission and projection, contributing to various applications in the industry.

Collaborations

Kaseya has collaborated with esteemed colleagues, including Kimio Nagasaka and Akira Miyamae. These partnerships have fostered innovation and development in their respective fields.

Conclusion

Hiroyasu Kaseya's contributions to light emitting technology and his impressive portfolio of patents highlight his role as a leading inventor. His work continues to influence advancements in the industry, showcasing the importance of innovation in technology.