Hiroshi Ohashi

Title: Hiroshi Ohashi: Innovator in Intrusion Warning Systems

Introduction

Hiroshi Ohashi is a notable inventor based in Hirakata, Japan. He has made significant contributions to the field of intrusion warning systems, holding a total of 7 patents. His innovative designs focus on enhancing security measures through advanced technology.

Latest Patents

One of Hiroshi Ohashi's latest patents is an intrusion warning system designed to indicate the presence of an intruder in a specified area. This system features an antenna that is insulated from the ground, which is fed by an oscillator providing an alternating current signal. The coupling impedance connected to the antenna is arranged to vary its impedance, ensuring that the voltage fed to the antenna is approximately 50% of the voltage from the oscillator. This design maintains optimal detection sensitivity. Another notable patent is a capacitively coupled electromagnetic intrusion warning system. This system utilizes a single antenna line encircling the area, insulated from the ground, and a high-frequency oscillator that feeds a signal to the antenna. A capacitor serves as the coupling impedance, and the system produces an alarm when it detects a voltage change induced by an intruder's proximity.

Career Highlights

Hiroshi Ohashi is currently employed at Matsushita Electric Works, Ltd., where he continues to develop innovative security solutions. His work has significantly impacted the field of intrusion detection, making environments safer and more secure.

Collaborations

Hiroshi has collaborated with notable coworkers, including Hiromitsu Inoue and Susumu Katayama. Their combined expertise has contributed to the advancement of intrusion warning technologies.

Conclusion

Hiroshi Ohashi's contributions to intrusion warning systems exemplify his innovative spirit and dedication to enhancing security. His patents reflect a commitment to developing effective solutions for detecting intrusions, making a lasting impact in the field.