Location History:
- Nagoya, JP (1987)
- Aichi, JP (1984 - 1989)
Company Filing History:
4 out of 2,606 
2 out of 13,395 
1 out of 21,351 
Years Active: 1984-1989
Title: Sadao Ichikawa: Innovator in Automotive Technology
Introduction
Sadao Ichikawa is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of devices that enhance engine performance and efficiency. With a total of 4 patents to his name, Ichikawa's work reflects a commitment to innovation and practical solutions in the automotive industry.
Latest Patents
One of Ichikawa's latest patents is an air/fuel ratio detector. This device features an output that is unambiguous across the entire operating region, including both fuel-rich and fuel-lean conditions. The detector comprises two cells: an electrochemical cell and a pump cell. A constant current is maintained through the electrochemical cell, while the current through the pump cell is controlled to ensure that the voltage across the electrochemical cell remains constant. This design allows for a reliable output signal. Another significant patent is a method of applying electric current to glow plugs, along with the corresponding device. This innovation allows for electric currents to be applied to parallel-connected glow plugs for preheating, to serial-connected glow plugs for running, and to intermittently reconnected parallel/serial glow plugs for cranking.
Career Highlights
Ichikawa has worked with prominent companies in the automotive sector, including NGK Spark Plug Company, Limited and Nissan Motor Company Limited. His experience in these organizations has undoubtedly influenced his innovative approach to engineering and product development.
Collaborations
Throughout his career, Ichikawa has collaborated with talented individuals such as Tetsusyo Yamada and Shinichi Yokoi. These partnerships have likely contributed to the success of his inventions and the advancement of automotive technology.
Conclusion
Sadao Ichikawa's contributions to automotive technology through his patents and collaborations highlight his role as a significant innovator in the field. His work continues to impact the industry, paving the way for future advancements in engine performance and efficiency.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.