Location History:
- Kawasaki, JP (1996)
- Futtsu, JP (2002 - 2011)
- Tokyo, JP (2019 - 2023)
Company Filing History:
4 out of 3,542 
2 out of 19 
1 out of 59 Years Active: 1996-2023
Title: Inventor Spotlight: Shinji Tokumaru
Introduction
Shinji Tokumaru is a prominent inventor hailing from Futtsu, Japan. With a remarkable portfolio of seven patents, he has made significant contributions to the field of thermophotovoltaic power generation and silicon manufacturing.
Latest Patents
Among his latest inventions is a selective emitter for thermophotovoltaic power generators. This innovative selective emitter exhibits heat resistance up to 1000°C and comprises a complex assembly of metal and dielectric layers designed to optimize performance. Additionally, Tokumaru developed a method for manufacturing highly pure silicon, which allows for the inexpensive and industrial production of silicon with low oxygen and carbon concentrations, ideal for applications like solar cells. His inventions also include techniques for producing highly pure silicon using molten silicon raw materials that contain specific concentrations of carbon and germanium.
Career Highlights
Shinji Tokumaru has had a fruitful career with key roles at notable companies, such as Nippon Steel Corporation and Nippon Steel Materials Co., Ltd. His work in these organizations has significantly contributed to advancements in material sciences and renewable energy technologies.
Collaborations
Throughout his career, Tokumaru has collaborated with esteemed colleagues, including Jiro Kondo and Masaki Okajima. These collaborations have further enriched his research and innovations, enabling him to push the boundaries of technology.
Conclusion
Shinji Tokumaru’s contributions as an inventor demonstrate his commitment to advancing technology in thermophotovoltaics and silicon manufacturing. With a growing number of patents and collaborations, he continues to be a significant figure in the field of innovations that are poised to enhance renewable energy capabilities and materials technology.
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.