Location History:
- Shizuoka, JP (1987)
- Kosai, JP (1986 - 1994)
- Toyohashi, JP (1998 - 2009)
Company Filing History:
7 out of 800 
2 out of 19,769 
1 out of 5 
Years Active: 1986-2009
Title: Akira Tsunoda: Innovator in Valve Control Technologies
Introduction
Akira Tsunoda is a prominent inventor based in Toyohashi, Japan. He has made significant contributions to the field of valve control technologies, holding a total of 8 patents. His innovative designs have advanced the functionality and efficiency of various mechanical systems.
Latest Patents
One of Tsunoda's latest patents is an actuator for a valve lift controller. This invention features a feed screw mechanism that includes a screwed shaft, which moves linearly along with the control shaft, and a rotation spindle that rotates in a circumferential direction. The feed screw mechanism effectively converts the rotational movement of the rotation spindle into a linear movement of the screwed shaft. Additionally, a protrusion extends outwardly from the rotation spindle, while an internal thread member engages with the outer wall surface of the rotation spindle. A motor stator, which generates a magnetic field, is positioned over the rotation spindle and is sandwiched between the protrusion and the internal thread member in the axial direction of the rotation spindle.
Another notable patent is a protection method for an engine equipped with a variable valve timing controller. This controller includes an electric motor that rotates a phase converter. In the event that the electric motor becomes locked, an overload exceeding a predetermined value is applied to the motor shaft and the phase converter. To prevent damage, a pin connecting the motor shaft with the phase converter is designed to shear at a notch, ensuring that the cam shaft and the phase converter remain unlocked, thus preventing breakage of the motor housing.
Career Highlights
Throughout his career, Akira Tsunoda has worked with several notable companies, including Asmo Co., Ltd. and Denso Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Tsunoda has collaborated with several talented individuals in his field, including Takahiko Tanaka and Noboru Handa. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Akira Tsunoda's contributions to valve control technologies exemplify his innovative spirit and dedication to engineering excellence. His patents reflect a deep understanding of mechanical systems and a commitment to advancing technology.