This inventor holds 3 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha. Active years: 1996-2002.
Location History:
- Himeji, JP (1996)
- Hyogo, JP (2002)
Company Filing History:
3 out of 21,351 
2 out of 1,649 
Years Active: 1996-2002
Title: Tetsuo Maeda: Innovator in EGR Stepping Motor Technology
Introduction
Tetsuo Maeda is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of engineering, particularly in the development of malfunction-detecting devices for EGR (Exhaust Gas Recirculation) stepping motors. With a total of 3 patents to his name, Maeda's work has had a considerable impact on automotive technology.
Latest Patents
One of Maeda's latest patents is a malfunction-detecting device for EGR stepping motors. This innovative device features a simple circuit structure that allows for detailed malfunction information to be obtained. It detects malfunctions during the initialization drive of the stepping motor when an engine is just started. The device includes a driving-signal monitoring circuit that monitors voltage surges generated by turning off a switching element for driving each of the excitation coils. This monitoring helps to identify wire breaks in the excitation coils. Additionally, the malfunction detecting means counts the number of monitoring inputs during the initialization driving of the EGR stepping motor, determining the presence of wire breaks when the count is less than the expected number of times the coils are driven.
Career Highlights
Throughout his career, Tetsuo Maeda has worked with prominent companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Jidosha Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the field of automotive engineering and innovation.
Collaborations
Maeda has collaborated with notable coworkers, including Akihiro Takeyama and Hitoshi Kamura. Their collective efforts have further advanced the technology in which they specialize.
Conclusion
Tetsuo Maeda's contributions to the field of EGR stepping motor technology exemplify his innovative spirit and dedication to engineering. His patents reflect a commitment to improving automotive systems and enhancing vehicle performance.