Mitihiro Yamakawa

Title: Mitihiro Yamakawa: Innovator in Oxygen Sensing Technology

Introduction

Mitihiro Yamakawa is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of oxygen sensing technology, holding a total of 2 patents. His work focuses on developing devices that accurately measure oxygen concentration in various environments.

Latest Patents

Yamakawa's latest patents include an oxygen concentration-sensing device and a method for producing the same. This device features a solid electrolyte body made from an oxygen ion-permeable metal oxide. The first surface of the body is exposed to the gas being sensed, while the second surface is exposed to a reference gas. The device includes first and second electrodes pressed against the respective surfaces of the solid electrolyte body. Notably, the first electrode is covered with a porous gas diffusion-resisting layer, which has an average pore size ranging from 300 Å to 400 Å.

Another significant patent is for a limiting current type oxygen analyzer designed for detecting oxygen concentration. This analyzer comprises a solid electrolyte element made from an oxygen ion conductive metal oxide, with a pair of porous film electrodes on both sides. At least one of the side electrodes is coated with a gas-diffusive resistive layer made from a porous insulating metal oxide. The design allows for the diffusion of oxygen ions in the gas, enabling accurate measurement of oxygen concentration.

Career Highlights

Mitihiro Yamakawa works at Nippondenso Co., Ltd., where he has been instrumental in advancing oxygen sensing technologies. His innovative approaches have led to the development of devices that enhance the accuracy and efficiency of oxygen measurement.

Collaborations

Yamakawa collaborates with talented coworkers, including Hiromi Sano and Masatoshi Suzuki. Their combined expertise contributes to the success of their projects and the advancement of technology in their field.

Conclusion

Mitihiro Yamakawa's contributions to oxygen sensing technology through his patents and work at Nippondenso Co., Ltd. highlight his role as an influential inventor. His innovative devices are paving the way for improved oxygen measurement techniques in various applications.