Kazuhiro Yamada

Title: Kazuhiro Yamada: Innovator in Automatic Transmission Technology

Introduction

Kazuhiro Yamada is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of automatic transmission technology, holding a total of 3 patents. His work has been instrumental in advancing automotive engineering, particularly in the design and functionality of transmission systems.

Latest Patents

Yamada's latest patents include an innovative automatic transmission design. This automatic transmission features a first rotating member and a second rotating member. The first rotating member consists of an outer rotating member with a first outer power transmission part and an outer extending part, along with an inner rotating member made from a different material. This inner member has a first inner power transmission part and an inner extending part. The outer and inner extending parts are connected through a first extending part, which is formed by axially joining them at a caulking part. The second rotating member includes a second extending part that has a recess indented on the opposite side of the first extending part. The caulking part features a protrusion that extends from the first extending part to the second extending part, with part of the protrusion located inside the recess.

Another of his patents is for an automatic transmission power transmission device. This device includes a friction tightening element, specifically a second brake, which has a drum member. A transmission path constituent member, or a third ring gear, is coupled to the drum member via a coupling part that extends circumferentially along the drum member. The drum member is designed with low-rigidity parts, or long holes, positioned at various circumferential locations on the drum member, particularly in areas radially outside and inside the coupling part.

Career Highlights

Kazuhiro Yamada is currently employed at Mazda Motor Corporation, where he continues to innovate and develop advanced automotive technologies. His work has not only contributed to the company's reputation for quality engineering but has also played a role in enhancing vehicle performance and efficiency.

Collaborations

Yamada has collaborated with several talented individuals in his field, including Kensuke Ueda and Yasuo Miura. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Kazuhiro Yamada's contributions to automatic transmission technology exemplify the spirit of innovation in the automotive industry.