Company Filing History:
3 out of 439 
3 out of 12 
2 out of 6 
Years Active: 2003-2017
Title: The Innovative Contributions of Hirofumi Hayashi
Introduction
Hirofumi Hayashi, an accomplished inventor based in Wakayama, Japan, has made significant strides in the field of sterilization technologies. With a portfolio of eight patents, Hayashi has focused on innovations that enhance the reliability and effectiveness of sterilization processes.
Latest Patents
Hayashi's latest inventions include a sophisticated sterilization system and an effective gas filling method. The sterilization system is composed of several compartments designed to undergo sterilization through a process that utilizes nitrogen dioxide gas. It integrates a gas supply source capable of generating nitrogen dioxide, a piping system, valve devices, and a nitrogen dioxide gas sensor. The control device manages the gas filling process by connecting each compartment to the gas supply one at a time. Once the nitrogen dioxide concentration reaches the desired level in a compartment, the control device excludes that compartment from further gas filling.
The sterilization method leverages the enhanced efficacy of nitrogen dioxide among other sterilant gases, such as nitrogen oxide. This method is particularly suitable for sterilizing medical instruments requiring high reliability, using a high concentration of nitrogen dioxide gas at levels of 5,000 ppm or above. The process includes humidifying the sterilizing chamber containing the items and ensuring the nitrogen dioxide concentration ranges between 9 to 100 mg/L.
Career Highlights
Throughout his career, Hirofumi Hayashi has contributed his expertise to notable companies including Noritsu Koki Co., Ltd. and Noxilizer, Inc. His work has been instrumental in advancing sterilization technologies that cater to industries requiring stringent safety protocols.
Collaborations
In his journey, Hayashi has collaborated with esteemed colleagues such as Ryuichi Iwasaki and Masaaki Mike. These partnerships reflect his commitment to innovation and the sharing of knowledge within the field of sterilization.
Conclusion
Hirofumi Hayashi exemplifies the spirit of innovation through his groundbreaking patents and collaborative efforts. His relentless pursuit of advancing sterilization technologies is not only shaping the industry but also enhancing the safety and reliability of medical instruments used worldwide.