This inventor holds 11 USPTO granted patents and 2 EPO patents. Top assignees: Idemitsu Kosan Company, Limited, Hitachi, Ltd., Nikon Corporation. Active years: 1981-2024.
Location History:
- Yokohama, JP (1996 - 2008)
- Chiba, JP (1981 - 2024)
Company Filing History:
6 out of 2,283 
3 out of 42,713 
2 out of 8,993 
Years Active: 1981-2024
Title: Hiroshi Oki: Innovator in Lubricating Oil Composition
Introduction
Hiroshi Oki is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of lubricating oil compositions, holding a total of 11 patents. His work focuses on enhancing the performance and efficiency of lubricants used in various applications.
Latest Patents
Oki's latest patents include a lubricating oil composition that excels in wear resistance and oil film retention, even with reduced viscosity. This composition features a base oil, an imide compound, a calcium-based detergent, a polymer component, and a zinc dithiophosphate. The imide compound consists of non-boron-modified succinic acid imide compounds, while the polymer component has a mass average molecular weight between 10,000 and 50,000. Another notable patent is a lubricant composition that includes a base oil, various calcium-based detergents, and ashless detergents, with specific ratios of nitrogen and calcium content to optimize performance.
Career Highlights
Hiroshi Oki has worked with notable companies such as Idemitsu Kosan Company, Limited and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in lubricant technology and innovation.
Collaborations
Oki has collaborated with esteemed colleagues, including Naoto Horita and Takashi Shionoya. These partnerships have fostered a collaborative environment that encourages innovation and the development of advanced lubricant solutions.
Conclusion
Hiroshi Oki's contributions to the field of lubricating oil compositions demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in lubricant technology, making him a key figure in this industry.