Hisao Nunokawa

Title: Hisao Nunokawa: Innovator in Fuel Sensor Technology

Introduction

Hisao Nunokawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of fuel sensor technology, holding a total of 3 patents. His work focuses on developing advanced sensors for detecting and measuring the composition of mixed fuels.

Latest Patents

His latest patents include a capacitance-type fuel sensor designed for sensing methanol in methanol-mixed fuel. This innovative sensor features a structure that defines a fuel passage, along with an electrode assembly that includes a pair of probe portions exposed to the fuel passage. The electric circuit enables the paired probe portions to exhibit positive and negative characteristics in the mixed fuel, with at least the positive probe portion covered by an electrically insulating film. Another significant patent is a fuel sensor that measures the mixture ratio of gasoline and methanol. This sensor comprises a housing that contains a structure with a fuel passage and an electrode assembly. The output control circuit within the housing issues an amplified voltage output that varies according to a capacitance established between the paired probe portions.

Career Highlights

Throughout his career, Hisao Nunokawa has worked with prominent companies, including Nissan Motor Company Limited and Calsonic Corporation. His experience in these organizations has contributed to his expertise in fuel sensor technology and innovation.

Collaborations

Hisao has collaborated with notable coworkers such as Yasuhiro Nogami and Kunio Funabiki. Their collective efforts have further advanced the development of fuel sensor technologies.

Conclusion

Hisao Nunokawa's contributions to fuel sensor technology demonstrate his innovative spirit and dedication to improving fuel measurement systems. His patents reflect a commitment to advancing the field and addressing the challenges associated with mixed fuels.