Hiroshi Shirasawa

Title: Innovations of Hiroshi Shirasawa

Introduction

Hiroshi Shirasawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of nuclear power technology, holding a total of 12 patents. His work focuses on enhancing the safety and efficiency of nuclear power plant operations.

Latest Patents

Among his latest patents is a control device and nuclear power plant control system. This system includes a detection unit for identifying specific events occurring within the nuclear power plant. It features on-site equipment that handles these events, along with a majority decision judging device and an on-site equipment control device. Each control device comprises multiple arithmetic units that perform independent and parallel arithmetic processes based on the detection results. They output signals to control the on-site equipment according to the results of their operations. Additionally, the system includes a matching process to harmonize the statuses of the arithmetic processes when starting up the control devices.

Another notable patent is a control system for nuclear facilities and a control method for such facilities. This system allows for the control of a nuclear facility located in an evacuation area. It consists of a control device in ordinary use within a non-evacuation area and an emergency control device for use in the evacuation area. The system also includes a plant control facility that connects to both the control device and the emergency control device, along with a signal switching unit that transitions from normal to emergency coupling based on an emergency switch signal.

Career Highlights

Hiroshi Shirasawa has worked with several notable companies, including Mitsubishi Heavy Industries Limited and Pioneer Corporation. His experience in these organizations has contributed to his expertise in nuclear technology and control systems.

Collaborations

Throughout his career, Shirasawa has collaborated with esteemed colleagues such as Hironobu Shinohara and Yasutake Akizuki. Their joint efforts have further advanced the innovations in nuclear power technology.

Conclusion

Hiroshi Shirasawa's contributions to nuclear power technology through his patents and collaborations highlight his significant role as an inventor. His work continues to influence the safety and efficiency of nuclear facilities.