Mitsuhiro Narita

Title: Innovations of Mitsuhiro Narita

Introduction

Mitsuhiro Narita is a notable inventor based in Tsuchiura, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced compressor technologies. With a total of two patents to his name, Narita's work reflects a commitment to innovation and efficiency in mechanical design.

Latest Patents

Narita's latest patents include a barrel-shaped centrifugal compressor and an end wall closure apparatus. The barrel-shaped centrifugal compressor is designed to prevent the positions of a diaphragm and a head flange from moving in a radial direction relative to the casing. This design aims to minimize unstable vibrations of the rotor, enabling efficient and stable operation even under high-pressure conditions. The compressor features a casing, a diaphragm that defines a flow channel, and a head flange attached to the casing by a shear key. The design incorporates sliding key grooves and keys to enhance stability and performance.

The end wall closure apparatus focuses on reducing the size of a barrel-type casing while maintaining the necessary area of a head cover end surface. It includes a shoulder formed on the outer circumferential surface of the head cover and a circumferentially extending groove on the inner surface of the casing. The shear key structure consists of two members that allow slight displacement under shear force, ensuring effective operation while accommodating design constraints.

Career Highlights

Mitsuhiro Narita is currently employed at Hitachi, Ltd., where he continues to innovate and contribute to the field of engineering. His work at Hitachi has allowed him to collaborate with other talented engineers and inventors, further enhancing the impact of his inventions.

Collaborations

Narita has worked alongside notable colleagues such as Haruo Miura and Tomohiro Naruse. Their collaborative efforts have contributed to the successful development of innovative technologies within their field.

Conclusion

Mitsuhiro Narita's contributions to engineering through his patents and work at Hitachi, Ltd. highlight his dedication to innovation and efficiency. His inventions, particularly in compressor technology, demonstrate the importance of continuous improvement in mechanical design.