Shigetaro Tagawa is a prominent inventor based in Tochigi, Japan. He has made significant contributions to the field of fluid machine technology, holding a total of 6 patents. His innovative designs focus on improving the efficiency and durability of displacement type fluid machines.

Latest Patents

One of Tagawa's latest patents involves a displacement type fluid machine that minimizes wear between the cylinder and displacer. This design features a space formed by the inner wall surface of a cylinder and the outer wall surface of a displacer, with the center of the cylinder aligned with the center of the displacer. The invention includes a plurality of working chambers created through the positional relationship between the displacer and cylinder during gyration. To further enhance performance, sliding portions between the displacer and cylinder are supplied with lubricating oil through an oil-feeding groove that extends from the central portion of the displacer to the vicinity of a suction port. This innovative approach effectively reduces wear and prolongs the lifespan of the machine.

Career Highlights

Shigetaro Tagawa is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop and refine his inventions, contributing to advancements in fluid machinery.

Collaborations

Throughout his career, Tagawa has collaborated with notable colleagues, including Masahiko Sugiyama and Masahiro Takebayashi. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Shigetaro Tagawa's contributions to fluid machine technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing the efficiency and durability of machinery, making a lasting impact in his field.

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