Kenji Hirasawa

Title: Kenji Hirasawa: Innovator in Object Sensors and IC Card Readers

Introduction

Kenji Hirasawa is a notable inventor based in Nagano, Japan, recognized for his contributions to the field of object sensors and IC card readers. With a total of 15 patents to his name, Hirasawa has made significant advancements in technology that enhance the functionality and reliability of electronic devices.

Latest Patents

Hirasawa's latest patents include an innovative object sensor and an IC card reader equipped with this sensor. The object sensor is designed with excitation coils and a detection coil that are separately disposed, allowing for high sensitivity and excellent linearity. This design effectively detects variations in impedance, including DC resistance, while utilizing a compact core body. The sensor is strategically positioned upstream of the read/write position in the IC card insertion direction, ensuring accurate detection of the card's validity. Additionally, the IC card reader features multiple inlet sensors to identify the type of inserted card, which helps prevent illegal actions by closing shutter mechanisms when an unusable card is detected.

Career Highlights

Throughout his career, Kenji Hirasawa has worked with prominent companies such as Sankyo Seiki Mfg. Co., Ltd and Kabushiki Kaisha Sankyo Seiki Seisakusho. His work has focused on developing technologies that improve the interaction between users and electronic devices, particularly in the realm of card reading and data processing.

Collaborations

Hirasawa has collaborated with notable colleagues, including Shigeyuki Nagata and Kazutoshi Ishikawa, contributing to the advancement of technology in their respective fields.

Conclusion

Kenji Hirasawa's innovative work in object sensors and IC card readers has significantly impacted the technology landscape. His patents reflect a commitment to enhancing device functionality and user experience.