This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignees: Sumitomo Electric Hardmetal Corp., Toyota Jidosha Kabushiki Kaisha. Active years: 2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 2025
Title: Naoyuki Wakatsuki: Innovator in Drill Technology
Introduction
Naoyuki Wakatsuki is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of drill technology, holding a patent that showcases his innovative approach to design and functionality.
Latest Patents
Wakatsuki holds a patent for a drill that features a unique outer peripheral surface design. The drill includes a first margin that is contiguous to each of the cutting edge and the flank face, along with a second margin located on the rear side with respect to the first margin in a rotation direction. This design separates the second margin from each of the flank face and the thinning face. Notably, the outer peripheral portions of both margins have respective back tapers with the same angle. The distance between the front end of the first margin and the front end of the second margin is specified to be between 3 mm and 5 mm. This innovative design enhances the drill's performance and efficiency.
Career Highlights
Throughout his career, Naoyuki Wakatsuki has worked with prominent companies such as Sumitomo Electric Hardmetal Corporation and Toyota Motor Corporation. His experience in these organizations has allowed him to refine his skills and contribute to advancements in drilling technology.
Collaborations
Wakatsuki has collaborated with talented individuals in his field, including Masashi Yamada and Yasumasa Sunano. These partnerships have fostered a creative environment that encourages innovation and the development of new ideas.
Conclusion
Naoyuki Wakatsuki is a distinguished inventor whose work in drill technology has made a significant impact. His patent reflects a deep understanding of engineering principles and a commitment to innovation. His contributions continue to influence the industry and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile