Location History:
- Takasaki, JP (1995)
- Gunma-ken, JP (1998 - 2002)
- Annaka, JP (1993 - 2024)
Company Filing History:
11 out of 1,099 
2 out of 7 Years Active: 1993-2024
Title: Susumu Higuchi: Innovator in Semiconductor Technology
Introduction
Susumu Higuchi is a prominent inventor based in Annaka, Japan, known for his significant contributions to semiconductor technology. With a total of 13 patents, he has made remarkable advancements in the field, particularly in the development of semiconductor phosphors and luminescent devices.
Latest Patents
One of Higuchi's latest patents is a semiconductor phosphor designed to exhibit photoluminescence upon irradiation with excitation light. This invention includes at least one active layer made of a compound semiconductor, which contains either an n-type or p-type dopant, along with at least two barrier layers made of a compound semiconductor that have a larger band gap than the active layer. The alternating stacking of the active layer and barrier layers allows for easy wavelength adjustment, high efficiency, and stability.
Another notable patent is the gallium phosphide luminescent device. This device improves luminance by providing a nitrogen-doped low carrier concentration layer at the p-n junction between n-type and p-type GaP layers. By controlling the donor and acceptor concentrations below 1×10/cm, the emission efficiency upon injection of electrons or holes is enhanced, leading to a significant improvement in performance compared to conventional devices.
Career Highlights
Higuchi has worked with notable companies in the semiconductor industry, including Shin-Etsu Handotai Co., Ltd. and Shin-Etsu Handotai Kabushiki Kaisha. His work has been instrumental in advancing semiconductor technologies and improving device efficiencies.
Collaborations
Throughout his career, Higuchi has collaborated with esteemed colleagues such as Munehisa Yanagisawa and Akio Nakamura. These collaborations have contributed to the innovative developments in his field.
Conclusion
Susumu Higuchi's contributions to semiconductor technology through his patents and collaborations have significantly impacted the industry. His work continues to inspire advancements in the field of photonics and luminescent devices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.