This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Nok Corporation. Active years: 2008-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Nihonmatsu, JP (2008)
- Tokyo, JP (2015)
Company Filing History:
Years Active: 2008-2015
Title: Naohiro Jotaki: Innovator in Sealing Technology
Introduction
Naohiro Jotaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of sealing technology, holding 2 patents that showcase his innovative approach to engineering challenges.
Latest Patents
One of his latest patents is a sealing apparatus designed to reduce the torque of a rotary portion while maintaining a stable and high sealing performance under high fluid pressure. This invention features a seal ring that inclines when subjected to hydraulic pressure and a pressing force, ensuring that the entire opposite pressure-side taper surface is in contact with the annular groove for sealing. The design allows for a reduction in contact area between the seal ring and the shaft, thereby minimizing torque. Additionally, the cylindrical shape of the D-ring prevents operating oil from entering the sealing area, ensuring consistent sealing performance.
Another notable patent is a seal ring that maintains stable sealing performance over an extended period. This invention includes linear contact portions that continuously extend around the circumference of the seal ring, providing effective sealing on the unsealed fluid side. The design ensures that the linear contact parts are strategically positioned to enhance sealing efficiency.
Career Highlights
Naohiro Jotaki is currently associated with Nok Corporation, where he applies his expertise in sealing technology. His work has been instrumental in advancing the company's product offerings and enhancing their performance in various applications.
Collaborations
He collaborates with talented coworkers, including Shinya Nakaoka and Takaaki Yasudomi, contributing to a dynamic team focused on innovation and excellence in engineering.
Conclusion
Naohiro Jotaki's contributions to sealing technology exemplify his commitment to innovation and engineering excellence. His patents reflect a deep understanding of the challenges in the field and provide effective solutions that enhance performance and reliability.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile