Location History:
- Kariya, JP (1998 - 2001)
- Chiryu, JP (2009)
- Anjo, JP (2006 - 2012)
Company Filing History:
6 out of 19,748 
3 out of 36,713 
1 out of 3,252 Years Active: 1998-2012
Title: Jouji Yamaguchi: Innovator in Internal Combustion Engine Technology
Introduction
Jouji Yamaguchi is a prominent inventor based in Anjo, Japan, known for his significant contributions to the field of internal combustion engine technology. With a total of seven patents to his name, Yamaguchi has developed innovative solutions that enhance engine performance and efficiency.
Latest Patents
One of Yamaguchi's latest patents is a control system for internal combustion engines. This system changes the operating timing of a valve by utilizing both a valve drive cam and a pump drive cam on a valve camshaft. The design includes a device that inhibits the operating timing from reverting to a previous state during adjustments. Additionally, the system optimizes the relative rotational phases of the valve drive cam and the pump drive cam, taking into account the composite reaction torque for effective timing changes.
Another notable patent is the actuator for a valve lift controller. This invention features a feed screw mechanism that includes a screwed shaft moving linearly along with a control shaft, and a rotation spindle that rotates circumferentially. The mechanism effectively converts rotational movement into linear movement, enhancing the precision of valve operations.
Career Highlights
Yamaguchi has had a distinguished career, working with leading companies in the automotive industry. He has been associated with Denso Corporation and Toyota Motor Corporation, where he has applied his expertise in engine technology to develop cutting-edge solutions.
Collaborations
Throughout his career, Yamaguchi has collaborated with notable colleagues, including Osamu Sato and Yoshihito Moriya. These partnerships have contributed to the advancement of innovative technologies in the automotive sector.
Conclusion
Jouji Yamaguchi's work in internal combustion engine technology exemplifies his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a drive to improve engine performance. His contributions continue to influence the automotive industry significantly.