Company Filing History:
1 out of 8 
1 out of 1 Years Active: 2008-2010
Title: The Innovations of Tomoya Sugahara
Introduction
Tomoya Sugahara is a prominent inventor based in Tokushima, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of gallium nitride (GaN) devices. With a total of 2 patents, Sugahara's work has advanced the efficiency and effectiveness of light-emitting diodes (LEDs).
Latest Patents
Sugahara's latest patents include a gallium nitride-based compound semiconductor device that emits light at a wavelength of 375 nm or below. This innovative LED design incorporates a multi-layer quantum well structure, which enhances the effective band gap of the InGaN well layer, thereby reducing the light-emitting wavelength. Additionally, the use of an AlInGaN buffer layer improves electron injection into the light-emitting layer, significantly increasing light-emitting efficiency. Another notable patent is for a gallium nitride compound semiconductor device and its manufacturing method. This invention features a light-emitting element that utilizes GaN and includes a structure with alternating InGaN well layers and AlGaN barrier layers. By adjusting the content ratios and film thickness of each layer, the luminous efficiency for wavelengths below 400 nm is enhanced.
Career Highlights
Throughout his career, Tomoya Sugahara has worked with notable companies such as Nitride Semiconductors Co., Ltd. and Nitride Semiconductor Co., Ltd. His expertise in semiconductor technology has positioned him as a key figure in the industry, contributing to advancements that benefit various applications.
Collaborations
Sugahara has collaborated with esteemed colleagues, including Shiro Sakai and Hisao Sato. These partnerships have fostered innovation and have played a crucial role in the development of his patented technologies.
Conclusion
Tomoya Sugahara's contributions to gallium nitride technology and his innovative patents have significantly impacted the field of semiconductor devices. His work continues to inspire advancements in LED technology and efficiency.