Hiroshi Kashiwagi

Title: **Hiroshi Kashiwagi: Innovator in Electroluminescent Technology**

Introduction

Hiroshi Kashiwagi, an accomplished inventor based in Hino, Japan, has made significant contributions to the field of electroluminescence with a total of 25 patents to his name. His inventions focus on enhancing the efficiency and effectiveness of organic electroluminescent elements, reflecting a commitment to innovation and superior technology.

Latest Patents

Kashiwagi's recent patents showcase groundbreaking advancements in organic electroluminescent elements. One notable invention is an organic electroluminescence element that operates on a reduced drive voltage while maintaining high emission luminance and power efficiency. This element incorporates multiple types of light-emitting dopants within a single layer, achieving a concentration of 5 Vol % or more, while restricting the main emission color dopant's concentration to 2 Vol % or less.

Another significant innovation is the design of a multicolor phosphorescent organic electroluminescent element, which boasts excellent electric power efficiency, a prolonged service life, and outstanding chromatic stability against varying drive currents. This invention includes multiple phosphorescent dopants that emit different wavelengths, exhibiting impressive white luminescence. The structure includes multiple luminescent layers, with a specific configuration to maintain optimal performance and longevity.

Career Highlights

Hiroshi Kashiwagi has had a notable career, associating himself with reputable companies such as Konica Corporation and Konishiroku Photo Industry Co., Ltd. His work within these companies has allowed him to explore and expand his research in electroluminescent technologies, consistently pushing the boundaries of innovation in the field.

Collaborations

Collaboration has played a vital role in Kashiwagi’s innovative journey. He has worked alongside talented individuals, including Hideki Takiguchi and Kenji Kumashiro, who have contributed to the development and refinement of his electroluminescent inventions. Their teamwork has fostered an environment conducive to creativity and advancement in technology.

Conclusion

Hiroshi Kashiwagi continues to be a vital figure in the world of electroluminescent technology. His dedication to innovation and the practical application of his inventions has not only enhanced the efficiency of such technologies but also led to a brighter future in the realm of lighting and display systems. With 25 patents to his name, Kashiwagi's legacy in the field will undoubtedly inspire future inventors and researchers.