Company Filing History:
3 out of 2,208 
3 out of 4 Years Active: 2014-2017
Title: Eiji Hashimoto: Innovator in Cutting Tools and Drill Bits
Introduction
Eiji Hashimoto is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of cutting tools and drill bits, holding a total of 3 patents. His innovative designs have improved the efficiency and effectiveness of various cutting applications.
Latest Patents
One of Hashimoto's latest patents is a cutting tool that features a cutting edge with a specialized coating. This coating extends from the rake face to the flank face and has a relief angle of not less than 15 degrees. The material of the coating is designed to have higher wear resistance than the base material of the cutting edge. During the cutting process, the edge of the coating on the rake face wears down due to friction with the workpiece, while the coating on the flank face is also worn away, exposing the base material underneath. This innovative design allows for a retraction of the flank face inward in a radial direction as wear progresses.
Another significant patent is a step-shaped drill bit that includes at least two stepped cutting edges arranged axially. The cutting edge of the first step is designed to reduce thrust resistance during perforation. This is achieved by modifying factors such as the number of blades, the point angle, and the clearance angle of the cutting edge compared to the subsequent steps. This design enhances the drill bit's performance and efficiency.
Career Highlights
Eiji Hashimoto has worked with prominent companies in the industry, including Fuji Jukogyo Kabushiki Kaisha and Makotoloy Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative cutting tools and drill bits.
Collaborations
Throughout his career, Hashimoto has collaborated with talented individuals such as Manabu Saito and Tatsuo Nakahata. These collaborations have fostered a creative environment that has led to the development of groundbreaking inventions.
Conclusion
Eiji Hashimoto's contributions to the field of cutting tools and drill bits demonstrate his innovative spirit and dedication to improving manufacturing processes. His patents reflect a commitment to enhancing performance and efficiency in cutting applications.