This inventor holds 3 USPTO granted patents. Top assignees: Izumo Industrial Co., Ltd., Izumo Industrial Co., Lts., Mitsubishi Kinzoku Kabushiki Kaisha. Active years: 1989-1993.
Company Filing History:
2 out of 2 
1 out of 1 
1 out of 197 Years Active: 1989-1993
Title: Nobuo Hiyama: Innovator in Cutting Tool Technology
Introduction
Nobuo Hiyama is a notable inventor based in Utsunomiya, Japan. He has made significant contributions to the field of cutting tools, holding a total of 3 patents. His innovative designs have advanced the functionality and efficiency of various cutting tools used in industrial applications.
Latest Patents
Hiyama's latest patents include a unique tap design and a rotary cutting tool. The tap features a main body with a crest, heel, and outer circumference, incorporating a male screw part at the crest side. This design includes a plurality of grooves that open to both the crest and the outer circumference, with cutting edges defined by the walls of these grooves. Notably, the axial rake angles of the cutting edges differ, enhancing the tool's performance.
The rotary cutting tool patent describes a body with a cutting portion and an axis of rotation. This tool includes multiple helical flutes that create a series of helical lands, each with a uniform land width. The design allows for peripheral cutting edges that are equally spaced and feature varying helix angles, optimizing the cutting process.
Career Highlights
Throughout his career, Nobuo Hiyama has worked with prominent companies such as Izumo Industrial Co., Ltd. and Mitsubishi Kinzoku Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in cutting tool technology and innovation.
Collaborations
Hiyama has collaborated with notable colleagues, including Osamu Tsujimura and Tatsuo Arai. Their combined efforts have fostered advancements in the field of cutting tools and manufacturing processes.
Conclusion
Nobuo Hiyama's contributions to cutting tool technology through his patents and collaborations highlight his role as an influential inventor. His innovative designs continue to impact the industry positively.