Ryuuta Yamada

Title: Ryuuta Yamada: Innovator in Organic Light-Emitting Technology

Introduction

Ryuuta Yamada is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of organic light-emitting elements, holding a total of 12 patents. His work focuses on enhancing the efficiency and characteristics of organic EL elements, which are crucial for various display technologies.

Latest Patents

One of Yamada's latest patents is for an organic light-emitting element that features a hole injection layer with a concave portion. This innovative design includes an anode, hole injection layer, buffer layer, light-emitting layer, and cathode, all layered on a substrate. The element is defined by banks that create a light-emission region, showcasing excellent light-emission characteristics. The hole injection layer is made of tungsten oxide, which has an oxygen vacancy structure, allowing for superior hole injection efficiency. This layer is formed under specific conditions to achieve optimal energy levels and is subjected to atmospheric firing to enhance film density and resistance to etching solutions.

Another notable patent involves a method for manufacturing organic thin-film elements. This method aims to reduce the internal pressure of a vacuum chamber while minimizing impurity contamination. It includes a two-step pumping process: rough pumping with a mechanical pump followed by main pumping with a non-mechanical pump, ensuring a clean environment for the manufacturing process.

Career Highlights

Throughout his career, Ryuuta Yamada has worked with notable companies such as Panasonic Corporation and Joled Inc. His experience in these organizations has allowed him to refine his expertise in organic light-emitting technologies and contribute to advancements in the field.

Collaborations

Yamada has collaborated with talented individuals such as Takahiro Komatsu and Satoru Ohuchi. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Ryuuta Yamada is a key figure in the realm of organic light-emitting technology, with a strong portfolio of patents that reflect his innovative spirit. His contributions continue to influence the industry and pave the way for future advancements in display technologies.