Hajime Haneda

Title: Hajime Haneda: Innovator in Zinc Oxide Technologies

Introduction

Hajime Haneda is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of materials science, particularly in the development of zinc oxide-based technologies. With a total of three patents to his name, Haneda's work has implications for various applications, including light-emitting devices.

Latest Patents

Haneda's latest patents include a zinc oxide-based multilayer structural body and its producing method. This invention features a zinc oxide semiconductor with a laminated structure that includes two layers of zinc oxide, each with distinct lattice volumes and donor concentrations. The innovative design allows for charge transfer between the layers without the need for an external electric field, enhancing the efficiency of the device. Another notable patent is for a zinc oxide phosphor that emits visible light with a broad spectrum close to white. This phosphor is produced through a process that involves heat-treating a mixture of zinc oxide and various additives, followed by hydrogenation to improve luminous efficiency. The resulting phosphor can be utilized in white diodes, vacuum fluorescent displays, and fluorescent paints.

Career Highlights

Hajime Haneda is affiliated with the National Institute for Materials Science, where he conducts research and development in advanced materials. His work has garnered attention for its innovative approach to utilizing zinc oxide in various applications.

Collaborations

Haneda collaborates with esteemed colleagues, including Naoki Ohashi and Isao Sakaguchi, contributing to a dynamic research environment that fosters innovation in materials science.

Conclusion

Hajime Haneda's contributions to zinc oxide technologies highlight his role as a leading inventor in the field. His patents reflect a commitment to advancing materials science and developing practical applications that can benefit various industries.