This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Subaru Corporation. Active years: 2026.
Company Filing History:
1 out of 2,437 
Years Active: 2026
Title: Rei Nakamoto: Innovator in Tool Technology
Introduction
Rei Nakamoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of tool technology, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and functionality of handheld tool driving devices.
Latest Patents
Nakamoto's latest patents include a collet bush and a tool driving device. The collet bush features a tapered cylindrical outer surface and a cylindrical inner surface, designed to be inserted into a concentric collet attached to a handheld tool driving device. This invention allows for precise positioning of the tool driving device to a workpiece while also incorporating a function to suck chips. The tool driving device, which holds, rotates, and feeds a tool, utilizes the collet bush to enhance its performance.
Another notable patent is a drill designed with two to four cutting edges made of cemented carbide or polycrystalline diamond. This drill features helical flutes formed alternately with the cutting edges, and an X-shaped thinning applied to the cutting edges. The rake angle of the cutting edges ranges from 30 to 40 degrees, while the clearance angle is between 0 and 8 degrees. Each cutting edge has a honed face achieved through chamfer honing, with a honing angle between -3 and 8 degrees.
Career Highlights
Rei Nakamoto is currently employed at Subaru Corporation, where he continues to innovate and develop new technologies. His work has significantly impacted the efficiency of tool design and manufacturing processes.
Collaborations
Nakamoto collaborates with talented coworkers, including Tsukasa Yokono and Aoi Mase, who contribute to the innovative environment at Subaru Corporation.
Conclusion
Rei Nakamoto's contributions to tool technology through his patents and work at Subaru Corporation highlight his role as a key innovator in the industry. His inventions not only improve tool performance but also pave the way for future advancements in the field.