This inventor holds 8 USPTO granted patents and 2 EPO patents. Top assignees: Jtekt Corporation, Koyo Sealing Techno Co., Ltd., Koyo Seiko Company, Ltd.. Active years: 2002-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Osaka, JP (2002 - 2011)
- Kashiwara, JP (2007 - 2019)
Company Filing History:

Years Active: 2002-2025
Title: Fumiaki Kasahara: Innovator in Sealing and Lubricant Technologies
Introduction
Fumiaki Kasahara, a skilled inventor based in Kashiwara, Japan, has made significant contributions to the field of sealing and lubricant technologies. With seven patents to his name, his work has garnered attention for its innovative approaches to reducing noise and improving efficiency in various mechanical applications.
Latest Patents
His most recent patents include a novel sealing rubber composition that combines acrylic rubber, artificial graphite, and a coupling agent. This formulation aims to enhance the functionality of rubber seals in various applications. Additionally, he has developed a lubricant composition designed for use in a speed reduction gear, which is part of an electric power steering apparatus. This lubricant includes a blend of a lubricating base oil, fine particles, and a calcium sulfonate-based thickener. The key benefit of his invention is its ability to minimize operating noise within the speed reduction gear, while also preventing oil separation, resulting in a quieter electric power steering system at a low cost.
Career Highlights
Throughout his career, Fumiaki Kasahara has worked with prominent organizations, including Jtekt Corporation. His innovative spirit and technical expertise have supported advancements in innovative engineering solutions, with a particular focus on enhancing mechanical components through effective lubricants and sealing technologies.
Collaborations
Kasahara has also collaborated with talented professionals in the field, including Kazutoshi Toda and Minoru Sentoku. These collaborations have likely contributed to the development of his inventions and have fostered a spirit of creativity and innovation within his work environment.
Conclusion
Fumiaki Kasahara stands out as an influential inventor in the realms of sealing and lubricant technologies. His patents reflect significant advancements that contribute to improved performance and reduced noise in mechanical systems. As he continues to innovate, his contributions will undoubtedly play a vital role in the evolution of engineering solutions in Japan and beyond.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile