Kenji Kano

Title: Kenji Kano: Innovator in Magnetic Recording Technology

Introduction

Kenji Kano is a notable inventor based in Mito, Japan, recognized for his contributions to magnetic recording technology. With a total of five patents to his name, Kano has made significant advancements in the field, particularly in the design of recording circuits and filter integrated circuits.

Latest Patents

Kano's latest patents include a recording circuit that features a mechanism to automatically set the recording. This innovative circuit incorporates a bias current circuit that superimposes a bias current from a bias oscillator onto a recording signal. It also includes a resistor for detecting the bias current flowing through the magnetic head, a rectifier circuit for rectifying and smoothing the signal across the resistor, and a control circuit that compares the output voltage of the rectifier circuit with a reference voltage. This design allows for the automatic adjustment of the bias current to a predetermined level, eliminating the need for a variable resistor for bias current adjustment.

Another significant patent is an integrated filter circuit with variable frequency characteristics. This filter integrated circuit includes a reference level generator circuit that attenuates the input signal and generates a reference level signal. It features a pseudofilter circuit with resistors and a variable capacitor as filter elements, along with an error amplifier unit that generates an automatic adjustment control signal. This signal is used to adjust the capacitance value of the variable capacitor, ensuring that the output signal level of the pseudofilter circuit matches the reference signal level. This innovation corrects deviations in filter characteristics caused by variations in resistance and capacitance.

Career Highlights

Kenji Kano is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies in magnetic recording and filtering systems. His work has significantly impacted the efficiency and performance of recording devices.

Collaborations

Kano has collaborated with esteemed colleagues such as Isao Fukushima and Kuniaki Miura, contributing to the advancement of technology in their respective fields.

Conclusion

Kenji Kano's innovative work in magnetic recording technology and filter circuits showcases his expertise and dedication to advancing the field. His patents reflect a commitment to improving the functionality and efficiency of recording systems, making him a valuable contributor to the industry.