Location History:
- Aki-gun, JP (2005)
- Hirohsima, JP (2005)
- Hiroshima, JP (1995 - 2007)
- Higashi-Hiroshima, JP (1994 - 2017)
- Hirgashi-Hiroshima, JP (2018)
Company Filing History:
26 out of 4,678 
1 out of 38 Years Active: 1994-2018
Title: Innovations in Exhaust Gas Purification: The Contributions of Masahiko Shigetsu
Introduction
Masahiko Shigetsu, based in Higashihiroshima, Japan, is an accomplished inventor with an impressive portfolio of 26 patents. His innovative work primarily focuses on exhaust gas purification technologies, reflecting a commitment to environmental sustainability and automotive engineering.
Latest Patents
Among his latest contributions are two significant patents related to exhaust gas purification. The first patent describes an exhaust gas purification catalyst device that incorporates a first catalyst with a palladium (Pd)-containing catalyst layer and a rhodium (Rh)-containing catalyst layer, alongside a second catalyst composed of Pt-loaded alumina that contains neither Rh nor Pd. This ingenious design ensures that at least one of these catalysts is strategically positioned upstream in the flow direction of the exhaust gas from an engine, effectively enhancing the purification process.
The second patent focuses on a catalytic device that employs Pt, Pd, and Rh as catalytic metals. In this patent, the catalytic metal Pt is loaded onto silica-alumina, which serves as a robust support. The resulting Pt-loaded silica-alumina is incorporated into a catalytic layer that is the first point of contact for the exhaust gas, optimizing the purification efficiency.
Career Highlights
Shigetsu has made significant advancements in the automotive industry through his roles at reputable companies like Mazda Motor Corporation and Tokyo Roki Co., Ltd. His contributions to these organizations highlight his expertise and dedication to developing innovative solutions for exhaust gas management.
Collaborations
Throughout his career, Masahiko Shigetsu has worked alongside notable colleagues, including Akihide Takami and Masaaki Akamine. These collaborations have likely influenced his inventive strategies and enriched the development of his patented technologies.
Conclusion
Masahiko Shigetsu's work in the field of exhaust gas purification exemplifies how innovative inventors contribute to addressing environmental challenges. With 26 patents to his name and a focus on enhancing catalytic processes, Shigetsu's influence in the automotive sector demonstrates the importance of continuous innovation for a sustainable future.
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.