Location History:
- Ann Arbor, MI (US) (2004)
- Iwata, JP (1989 - 2011)
Company Filing History:
Years Active: 1989-2011
Title: Innovations of Katsumi Furutani
Introduction
Katsumi Furutani is a notable inventor based in Iwata, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the development of clutch systems. With a total of 6 patents to his name, Furutani's work showcases his innovative approach to enhancing the durability and functionality of mechanical components.
Latest Patents
One of Furutani's latest inventions is the spring clutch. This innovative design improves durability by preventing the clutch spring from breaking due to fatigue. The clutch spring, made from a wire with a square section, is mounted between a pulley and a pulley hub. The design includes a large-diameter recess that allows the clutch spring to expand without experiencing sharp torque, thus preventing local stress concentration and enhancing the clutch's longevity.
Another significant invention is the over-running clutch pulley with a clutch cartridge. This design features a sheave member that engages with an input device and a hub member that connects to an output device. The clutch cartridge includes a coil spring that engages and disengages based on the acceleration and deceleration of the sheave member. This mechanism allows for smoother operation and improved performance in various applications.
Career Highlights
Furutani has worked with prominent companies such as NTN Corporation and NTN Toyo Bearing Co., Ltd. His experience in these organizations has contributed to his expertise in mechanical design and innovation.
Collaborations
Throughout his career, Furutani has collaborated with talented individuals, including Ken Yamamoto and Randall K. King. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Katsumi Furutani's contributions to the field of mechanical engineering are noteworthy. His innovative patents reflect a commitment to improving the functionality and durability of clutch systems. Furutani's work continues to influence the industry and inspire future inventors.