Kojiro Tachi

Title: Kojiro Tachi: Innovator in Organic Electroluminescent Devices

Introduction

Kojiro Tachi is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of organic electroluminescent devices. His innovative work focuses on enhancing the durability of these devices at elevated temperatures.

Latest Patents

Tachi holds a patent for an organic electroluminescent device. This invention aims to improve durability at elevated temperatures by utilizing coumarin derivatives as dopants in the luminescent layer. The device is constructed by laminating an anode, a hole injection layer, a hole transportation layer, a luminescent layer, an electron transportation layer, and a cathode in that order. The luminescent layer incorporates a green light-emitting coumarin derivative along with hole- and electron-transporting substances as hosts. The coumarin derivative consists of multiple coumarin groups bound to an aromatic ring or heterocycle, exhibiting a glass transition point of 150°C or higher or a melting point of 297°C or higher. Tachi's patent is a testament to his innovative approach in this field, with 1 patent to his name.

Career Highlights

Tachi is associated with Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, where he continues to develop his groundbreaking technologies. His work has garnered attention for its potential applications in various electronic devices.

Collaborations

Tachi has collaborated with notable colleagues such as Kazushige Kojima and Hisayoshi Fujikawa. Their combined expertise has contributed to advancements in the field of organic electroluminescent devices.

Conclusion

Kojiro Tachi's contributions to organic electroluminescent devices highlight his innovative spirit and dedication to improving technology. His work not only enhances device durability but also paves the way for future advancements in the field.