This inventor holds 29 USPTO granted patents and 1 EPO patent, primarily in Lubricating Oil Composition. Top assignees: Tonen Corporation, Toa Nenryo Kogyo, K. K., Exxon Chemical Patents, Inc.. Active years: 1989-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ooi, JP (1994)
- Ohi, JP (1993 - 1995)
- Saitama, JP (1989 - 1997)
- Ohigmachi, JP (1997)
- Saitama-ken, JP (1998 - 2005)
- Tokorozawa, JP (1994 - 2009)
Company Filing History:


Years Active: 1989-2009
Areas of Expertise:
Title: The Innovative Contributions of Hirotaka Tomizawa
Introduction: Hirotaka Tomizawa, located in Tokorozawa, Japan, is a notable inventor with an impressive portfolio of 29 patents. His work primarily focuses on developing advanced lubricating oils for various applications, showcasing his expertise in chemical engineering and materials innovation.
Latest Patents: Among Tomizawa's latest inventions is a patented lubricating oil for bearings. This formulation comprises a diester described by a specific general formula, focusing on achieving optimal performance through carefully selected alkyl and alkylene groups. Additionally, he has developed a lubricating oil composition that boasts excellent antiwear properties specifically designed for internal combustion engines. This composition utilizes a combination of base oils and several critical additive components to enhance the oil's performance and longevity.
Career Highlights: Tomizawa has made significant contributions to the field of lubrication technology, particularly through his positions in reputable companies such as Tonen Corporation and Toa Nenryo Kogyo, K.K. His innovative approaches to lubrication solutions have placed him at the forefront of the industry, driving advancements that improve engine efficiency and reliability.
Collaborations: Throughout his career, Hirotaka Tomizawa has collaborated with esteemed colleagues, including Narihiko Yoshimura and Yasuji Komatsu. These partnerships have facilitated the sharing of knowledge and ideas, contributing to the development of cutting-edge lubricant technologies.
Conclusion: Hirotaka Tomizawa's extensive patent portfolio and significant contributions to lubrication technology underscore his invaluable role as an inventor. His innovations continue to push the boundaries of what is possible in the field, influencing both industrial practices and consumer products alike. As he progresses in his career, Tomizawa's work will undoubtedly inspire future advancements in lubricating solutions and beyond.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile