Yasufumi Fukunaga, an innovative inventor based in Sakai, Japan, has significantly contributed to the field of bicycle technology with a remarkable portfolio of 16 patents. His inventive spirit and dedication to enhancing bicycle performance have positioned him as a valuable asset in the industry, particularly through his association with Shimano Inc.

Latest Patents

Fukunaga's recent patents highlight his ingenuity and forward-thinking approach. One of his notable inventions is a bicycle sprocket that features a sprocket body, multiple sprocket teeth, and a unique torque transmitting profile. This sprocket design includes at least ten distinct internal spline teeth of varying shapes, enhancing the functionality and performance of the bicycle transmission system.

Another prominent patent introduced by Fukunaga is a bicycle sprocket arrangement, which consists of both a smaller and a larger sprocket. This innovative arrangement incorporates an upshifting facilitation area designed to improve the efficiency of shifting the bicycle chain between the sprockets. By incorporating specific recessed and chamfered portions on the teeth of the larger sprocket, the design facilitates smoother transitions during gear changes, significantly enhancing the riding experience.

Career Highlights

As a key contributor at Shimano Inc., Fukunaga has been instrumental in developing cutting-edge bicycle components that have influenced the cycling industry. His work not only emphasizes performance but also aims to improve the overall rider experience. The number of patents he holds is a testament to his creative abilities and influential role in advancing bicycle technology.

Collaborations

Throughout his career, Fukunaga has collaborated with talented coworkers such as Atsuhiro Emura and Tsuyoshi Fukumori. These partnerships have fostered an environment of innovation, where diverse ideas and expertise converge to create pioneering bicycle technologies.

Conclusion

Yasufumi Fukunaga's contributions to bicycle design and functionality have left a lasting impact on the industry. With a focus on innovation and collaboration, his work at Shimano Inc. continues to inspire advancements in bicycle technology. His numerous patents underscore his role as a leading inventor, positioning him at the forefront of the cycling revolution.

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