Masahiro Ohkubo is an esteemed inventor based in Kadoma, Japan, recognized for his significant contributions to the field of automatic transmission technology. With a remarkable portfolio of 18 patents, he has pioneered innovations that enhance the efficiency and performance of automotive systems.

Latest Patents

One of Ohkubo's latest patents is a sophisticated 3-position actuator designed for automatic transmissions. This invention comprises several critical components, including a turbine, a pump, a first stator, and a second stator, each working in harmony to optimize vehicle performance. The automatic transmission features a speed changer that utilizes a planetary gear train, integrating first and second planetary gears that share a common planetary carrier.

The torque converter's turbine connects to a turbine shaft, facilitating power transmission to the speed changer. Ohkubo's design includes a first stator positioned between the turbine and the pump, coupled to a first stator shaft equipped with a one-way clutch. Additionally, a second stator is strategically placed at the pump side, linked to the housing through a second stator shaft, also utilizing a one-way clutch for reverse power transmission. To control the rotation speed of the first stator shaft, a clutch or brake is integrated into the design. The first and second sun gears mesh with their respective planetary gears and are fixed to the ends of the turbine and first stator shafts, respectively, demonstrating a comprehensive and innovative approach to automatic transmission systems.

Career Highlights

Ohkubo is currently employed at Kabushiki Kaisha Daikin Seisakusho, a reputable company known for its cutting-edge technology in various fields, including automotive systems. His extensive research and development work have not only contributed to company advancements but also significantly impacted the automotive industry's design standards.

Collaborations

Throughout his career, Ohkubo has collaborated with talented coworkers such as Hirofumi Shiba and Katsuma Nakamura. Their joint efforts have fostered a creative environment, enabling the realization of innovative solutions that push the boundaries of existing technology.

Conclusion

Masahiro Ohkubo's impressive contributions to the field of automatic transmission technology, showcased through his 18 patents, underscore his role as a forward-thinking inventor in Japan. His latest innovations promise to enhance the automotive experience, solidifying his legacy as a pioneer in the industry.

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