Kazutaka Hattori

Title: Kazutaka Hattori: Innovator in Gas Sensor Technology

Introduction

Kazutaka Hattori is a notable inventor based in Okazaki, Japan. He has made significant contributions to the field of gas sensor technology, holding a total of 9 patents. His work primarily focuses on improving the functionality and reliability of oxygen sensors.

Latest Patents

Hattori's latest patents include a "Controller for Gas Concentration Sensor" and an "Oxygen Sensor Deterioration Detection Method." The controller patent describes a method for determining the exhaust air-fuel ratio by employing an oxygen sensor. It involves applying a voltage to the sensor at specific intervals to calculate device impedance, followed by applying a reverse voltage to negate any influence on the sensor output. The deterioration detection method allows for constant, high-precision monitoring of the oxygen sensor's performance, unaffected by temperature characteristics. This method calculates the real value of the sensor element's impedance based on the applied voltage and current, while also estimating the sensor's temperature to detect any abnormalities.

Career Highlights

Throughout his career, Kazutaka Hattori has worked with prominent companies such as Toyota Motor Corporation and Fujitsu Ten Limited. His experience in these organizations has allowed him to develop innovative solutions in the automotive and electronics sectors.

Collaborations

Hattori has collaborated with notable colleagues, including Kenji Tashiro and Teruhisa Fukuda. Their combined expertise has contributed to advancements in sensor technology.

Conclusion

Kazutaka Hattori's contributions to gas sensor technology have made a significant impact in the industry. His innovative patents and collaborations reflect his dedication to enhancing sensor performance and reliability.