Location History:
- Shioya-gun, JP (2019)
- Tokyo, JP (2020)
Company Filing History:
3 out of 447 
3 out of 21,963 
Years Active: 2019-2020
Title: Sachio Hojo: Innovator in Valve Control Technology
Introduction
Sachio Hojo is a notable inventor based in Shioya-gun, Japan. He has made significant contributions to the field of valve control technology, holding a total of 3 patents. His work focuses on improving the efficiency and reliability of valve mechanisms in automotive applications.
Latest Patents
One of his latest patents is the "Abnormality Determining Valve Control Device and System." This innovative device controls a valve drive mechanism based on a degree-of-opening signal and a startup signal for an engine. It features a drive signal generating unit that generates a test drive signal for the valve before normal operation. An abnormality determining unit assesses the degree-of-opening signal during testing to identify any issues in the drive mechanism. If an abnormality is detected, the device halts both the test drive signal and the normal drive signal.
Another significant patent is the "Valve Control Device," which performs feedback control of a drive mechanism for a wastegate valve in a supercharger. This device utilizes a sensor signal to monitor the real degree of opening of the wastegate valve and adjusts control gains based on whether the valve is open or closed.
Career Highlights
Sachio Hojo has worked with prominent companies in the automotive industry, including Keihin Corporation and Honda Motor Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in valve control technology.
Collaborations
Throughout his career, Hojo has collaborated with talented individuals such as Youichiro Shikine and Kensuke Yamamoto. These partnerships have contributed to the advancement of his projects and the successful development of his patents.
Conclusion
Sachio Hojo is a distinguished inventor whose work in valve control technology has led to significant advancements in automotive engineering. His patents reflect a commitment to innovation and efficiency in engine performance.