This inventor holds 11 USPTO granted patents. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Giken Kogyo K.k.. Active years: 1979-1989.
Location History:
- Saitama, JP (1985 - 1986)
- Kawagoe, JP (1979 - 1989)
Company Filing History:
10 out of 10,092 
1 out of 182 
Years Active: 1979-1989
Title: Masumi Hamane: Innovator in Automotive Engineering
Introduction
Masumi Hamane is a notable inventor based in Kawagoe, Japan. She has made significant contributions to the field of automotive engineering, particularly in the development of automatic transmission systems and engine cooling solutions for motorcycles. With a total of 11 patents to her name, her work has had a lasting impact on the industry.
Latest Patents
One of her latest patents is an innovative automatic transmission. This system features a planetary gear mechanism that includes a first gear driven from a drive shaft, a second gear that engages with the first gear to transmit speed change output to a driven shaft, and a third gear that controls the operation of the second gear. A centrifugally operated clutch connects the first and second gears when the rotational speed of the driven shaft exceeds a predetermined value. Additionally, a ratchet type one-way clutch is integrated to allow the third gear to rotate in the same direction as the drive shaft while preventing reverse rotation. This design includes a ratchet pawl supporting plate and multiple ratchet pawls that engage and disengage the ratchet teeth based on centrifugal force.
Another significant patent is for a motorcycle engine cooling system. This system is designed for small motorcycles and features a radiator that is compactly mounted in the vacant space in front of a water-cooled engine. The radiator and engine are protected within the rear body of the motorcycle, which prevents damage from road debris. The design also includes outlet openings that facilitate airflow through the radiator and engine compartment, enhancing cooling efficiency.
Career Highlights
Masumi Hamane has worked with prominent companies in the automotive sector, including Honda Giken Kogyo Kabushiki Kaisha and Honda Giken Kogyo K.K. Her experience in these organizations has allowed her to develop and refine her innovative ideas, contributing to advancements in automotive technology.
Collaborations
Throughout her career, Masumi has collaborated with talented individuals such as Takanori Onda and Masahiko Kimoto. These partnerships have fostered a creative environment that has led to the successful development of her patented technologies.
Conclusion
Masumi Hamane is a pioneering inventor whose work in automatic transmission systems and engine cooling solutions has significantly influenced the automotive industry. Her innovative designs and collaborative efforts continue to inspire future advancements in engineering.