Hirosi Katada

Title: Hirosi Katada: Innovator in Electronic Ignition Systems

Introduction

Hirosi Katada is a notable inventor based in Naka-machi, Japan. He has made significant contributions to the field of electronic ignition systems, holding a total of 4 patents. His work has advanced the technology used in internal combustion engines, enhancing their efficiency and performance.

Latest Patents

One of Hirosi Katada's latest patents is an electronic ignition control system. This system utilizes a microcomputer to count a reference signal indicative of a crank reference position. It senses the rotational speed of an internal combustion engine, thereby controlling the ignition timing of the engine. The system computes a reference ignition position using the sensed engine rotational speed as a parameter. It also corrects this reference ignition position using various information indicative of the engine's operating conditions.

Another significant patent is a contactless ignition system for internal combustion engines. This system employs a current interruption type and includes at least one pulser device. The pulser senses predetermined maximum and minimum advance positions of the ignition timing, generating an output signal indicative of these positions. Based on this output signal, the system produces two ramp signals with different gradients. A comparator then generates a control signal that regulates the turn-on position of a semiconductor switch, ensuring a consistent duration of current supply for ignition across various engine rotational speeds.

Career Highlights

Hirosi Katada is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to focus on developing advanced ignition systems that improve engine performance and reliability.

Collaborations

Throughout his career, Hirosi has collaborated with notable colleagues, including Shotaro Naito and Nobuhiko Ogasawala. These collaborations have contributed to the development of innovative technologies in the automotive sector.

Conclusion

Hirosi Katada's contributions to electronic ignition systems have made a significant impact on the automotive industry. His innovative patents reflect his dedication to enhancing engine technology and performance.