Location History:
- Tsuchiura, JP (1994 - 1999)
- Ibaraki, JP (1995 - 2000)
- Ibaraki-ken, JP (2010)
- Ushiku, JP (1990 - 2017)
Company Filing History:
19 out of 2,347 
8 out of 499 
2 out of 734 
Years Active: 1990-2025
Title: Spotlight on Kenji Shimoyama: Innovator in Gallium Nitride Technology
Introduction: Kenji Shimoyama, based in Ushiku, Japan, is a prolific inventor in the field of semiconductor technology, holding an impressive 28 patents. His groundbreaking work primarily revolves around advancements in light-emitting diodes (LEDs) utilizing gallium nitride (GaN), which have significant implications for various applications in modern electronics.
Latest Patents: Among his latest patents, one notable invention is the gallium nitride-based light-emitting diode. This innovation includes a unique configuration of a gallium nitride substrate, first and second contact layers, and an active layer with a multi-quantum well structure. The introduction of a super-lattice layer helps improve the crystallinity of the semiconductor layers and prevents defects in the active layer, enhancing the efficiency of the LED. Another significant patent is for a high-efficiency light-emitting diode and its fabrication method, which involves a semiconductor stacked structure on a support substrate. This design features a reflecting layer and protrusions that enhance light extraction efficiency, thus reducing dislocation density in the semiconductor materials.
Career Highlights: Kenji has made significant contributions during his tenure at renowned companies such as Mitsubishi Chemical Corporation and Mitsubishi Kasei Corporation. His professional journey reflects a commitment to innovation and excellence in semiconductor research and development.
Collaborations: Throughout his career, Kenji has collaborated with talented professionals in the field, including Hideki Gotoh and Nobuyuki Hosoi. These partnerships have fostered a productive environment for exploration and advancement in LED technologies.
Conclusion: Kenji Shimoyama's contributions to gallium nitride technology and lighting solutions exemplify the importance of innovation in the semiconductor industry. His patents not only showcase his inventive spirit but also pave the way for future advancements in energy-efficient lighting and electronic applications.
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.