Tokuhiko Matsunaga is a distinguished inventor based in Fukuoka-ken, Japan. He has made significant contributions to the field of semiconductor technology, holding a remarkable six patents to his name. His work primarily focuses on light-emitting devices, which are crucial components in various applications ranging from displays to lighting solutions.

Latest Patents

Among his latest patents, Matsunaga has developed a novel semiconductor light-emitting device. This invention features an intricate design that includes an emission layer, a first electrode equipped with a reflective metal layer, and an insulating layer. The structure also comprises first and second conductivity-type layers along with a second electrode. The innovative aspect of his design lies in the specifics of the insulating layer, which includes an opening allowing a portion of the first electrode to be exposed. The layering of the first and second conductivity type layers is strategically arranged to enhance performance.

Another notable invention by Matsunaga is related to a light-emitting element and the associated method for its manufacturing. This design consists of a semiconductor stacked body with a light-emitting layer, connecting the first upper electrode directly to the semiconductor. His invention also establishes a transparent conductive layer and includes an intermediate film containing oxygen for improved functionality. The design's unique current-blocking layer features slits, optimizing the light-emitting process by carefully controlling the emitted light.

Career Highlights

Matsunaga works for Kabushiki Kaisha Toshiba, a company recognized for its role in technological innovations across various sectors. His contributions to semiconductor technology have not only bolstered the company's portfolio but have also enhanced the effectiveness of light-emitting devices widely used today.

Collaborations

Throughout his inventive journey, Matsunaga has collaborated with esteemed colleagues, including Katsufumi Kondo and Koichi Nitta. Together, they have fostered a creative environment that encourages the exploration of advanced semiconductor technologies, paving the way for groundbreaking developments.

Conclusion

Tokuhiko Matsunaga stands out as a vital figure in semiconductor innovation. His patents reflect a deep understanding of materials and engineering principles. As he continues to contribute to the field, his work promises to influence future advancements in light-emitting technologies.

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