Keitarou Matsui

Title: Keitarou Matsui: Innovator in Carbon Nanotube Technology

Introduction

Keitarou Matsui is a prominent inventor based in Sendai, Japan. He is known for his significant contributions to the field of carbon nanotube technology. His innovative work has led to advancements in electron sources and display technologies.

Latest Patents

Matsui holds a patent for a carbon nanotube and method for producing the same, as well as an electron source and method for producing the same, and a display. The patent describes a carbon nanotube that features a carbon network film of polycrystalline structure divided into crystal regions along the axis of the tube. Each crystal region's length along the tube axis ranges from 3 to 6 nm. The electron source includes a cylindrical carbon nanotube with a closed end on the substrate side, firmly adhered to the substrate. The production method involves depositing carbon without a metal catalyst in a fine hole and modifying the carbon deposition film through plasma etching. This technology enables an electron source with excellent field emission characteristics and low voltage operation, leading to displays with ultralow power consumption and ultrahigh luminance.

Career Highlights

Matsui is associated with Sharp Kabushiki Kaisha Corporation, where he has made significant strides in research and development. His work has been instrumental in enhancing the performance and efficiency of electronic devices.

Collaborations

Matsui has collaborated with notable colleagues, including Tsunaki Tsunesada and Takashi Kyotani. Their combined expertise has contributed to the advancement of carbon nanotube applications in various technologies.

Conclusion

Keitarou Matsui's innovative work in carbon nanotube technology has paved the way for advancements in electron sources and display systems. His contributions continue to influence the field and inspire future innovations.