This inventor holds 29 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Variable Valve Timing. Top assignees: Denso Corporation, Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha. Active years: 1985-2014.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kariya, JP (1985 - 1986)
- Anjo, JP (1993 - 2014)
Company Filing History:
22 out of 20,436 
6 out of 1,600 
6 out of 38,970 
Years Active: 1985-2014
Areas of Expertise:
Title: Akihiko Takenaka: A Pioneer in Variable Valve Timing Innovations
Introduction
Akihiko Takenaka, an esteemed inventor located in Anjo, Japan, is celebrated for his significant contributions to automotive technology. He holds an impressive portfolio of 29 patents, showcasing his dedication to innovating within the field.
Latest Patents
Among his latest innovations, Takenaka has developed a variable valve timing apparatus designed to enhance engine performance. This apparatus features a stopper piston with an equalizing passage, allowing for effective oil flow even when the engaging hole is filled. This design enables the formation of narrower vanes, increasing the variable angular range. Moreover, the stopper piston is engineered with end faces of equal surface area to stabilize its position, even during oil pressure pulsations.
Another noteworthy invention is his variable valve timing device, which incorporates a control valve to manage fluid communication among various ports. This device includes multiple components such as a sleeve, a spool, and resilient members, working in concert to minimize sliding resistance and enhance operational efficiency.
Career Highlights
Throughout his illustrious career, Akihiko Takenaka has made substantial advancements in automotive technology while working with notable companies, including Denso Corporation and Toyota Jidosha Kabushiki Kaisha. His work has been pivotal in developing systems that optimize engine performance and efficiency.
Collaborations
Takenaka has collaborated with several talented individuals during his career, notably with coworkers Takayuki Inohara and Yoshihito Moriya. Their combined expertise has further enriched the innovations emerging from their collaborations.
Conclusion
In conclusion, Akihiko Takenaka's extensive work in variable valve timing technology marks him as a significant figure in automotive innovation. His inventive spirit has not only led to numerous patents but has also contributed to advancements that improve engine performance, underscoring the importance of innovation in the automotive industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile