Ryuji Shutoku

Title: Ryuji Shutoku: Innovator in Fire Alarm Systems

Introduction

Ryuji Shutoku is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of fire alarm systems, holding a total of 4 patents. His innovative designs focus on enhancing the reliability and efficiency of fire detection and alarm systems.

Latest Patents

One of his latest patents is a power supply control device in a fire alarm system. This device features terminals for fire detectors and/or repeaters equipped with comparators to detect abnormalities such as fire or the operational status of controlled apparatus. It includes a reference voltage supply source that provides reference voltage to the comparators, allowing this voltage to be supplied only during the detection time.

Another significant patent is a line interruption supervisory device for a fire alarm system. This device ensures reliable line supervision even with long line lengths or a large number of connected fire detectors. It utilizes a terminating capacitor connected across the terminals of power/signal lines to which fire detectors are connected. A memory component stores the voltage available on these lines when line supervision is requested, followed by a power supply interruption. A line interruption discriminating circuit then compares the voltages before and after the interruption to determine if there is an open power/signal line.

Career Highlights

Ryuji Shutoku has worked with prominent companies in the fire safety industry, including Nohmi Bosai Co., Ltd. and Nohmi Bosai Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in fire alarm technology.

Collaborations

Throughout his career, Ryuji has collaborated with talented individuals such as Kaoru Takahashi and Akio Tsumuji. These partnerships have contributed to the advancement of fire safety technologies and the successful implementation of his inventions.

Conclusion

Ryuji Shutoku's contributions to fire alarm systems through his patents demonstrate his commitment to enhancing safety and reliability in fire detection. His innovative work continues to impact the industry positively.