Company Filing History:
Years Active: 1985-1995
Title: Hirofumi Aritsubo: Innovator in Shaft Seal Technology
Introduction
Hirofumi Aritsubo is a notable inventor based in Sanda, Japan. He has made significant contributions to the field of mechanical seals, particularly in the development of innovative shaft seal devices. With a total of 2 patents, Aritsubo's work has advanced the technology used in various industrial applications.
Latest Patents
Aritsubo's latest patents include a shaft seal device that features two mechanical seals designed to effectively separate a sealed fluid region from an atmospheric region. This device allows a shaft to rotate about an axis while maintaining a secure seal. The mechanical seals create a purge region between them, enhancing the sealing capability. The first seal ring is fixed on the shaft, while the second seal ring is slidable and pressed against the first. The design incorporates both contact and non-contact type seals to manage fluid pressure effectively.
Another significant invention is the emergency shaft seal device, which utilizes a packing ring made of elastic material. This packing ring is designed to deform under pressure, allowing it to seal the rotatable shaft in case of a failure in the main shaft seal. This innovative approach ensures continued operation even under abnormal conditions.
Career Highlights
Hirofumi Aritsubo is associated with Nippon Pillar Packing Co., Ltd., where he has been instrumental in developing advanced sealing technologies. His work has not only contributed to the company's reputation but has also set new standards in the industry.
Collaborations
Aritsubo has collaborated with notable coworkers such as Takahisa Ogawa and Toshihiko Fuse. Their combined expertise has fostered an environment of innovation and creativity, leading to the successful development of new technologies.
Conclusion
Hirofumi Aritsubo's contributions to the field of mechanical seals demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a dedication to solving complex problems in industrial applications.