This inventor holds 2 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1994-1995.
Company Filing History:
Years Active: 1994-1995
Title: Yozo Tohbo: Innovator in Injection Molding Technology
Introduction
Yozo Tohbo is a distinguished inventor based in Yokohama, Japan. He has made significant contributions to the field of injection molding technology. With a total of 2 patents to his name, Tohbo's innovations have advanced manufacturing processes in various industries.
Latest Patents
Tohbo's latest patents include a motor-driven vertical type injection molding apparatus. This apparatus features a stable screw back pressure and a simple structure. It incorporates a plurality of guide shafts that extend in the perpendicular direction, which are integrally provided in the lower base of the injection unit. The screw holding member is supported on these guide shafts and is movable in the perpendicular direction. The movement is facilitated by an injection motor through a ball screw mechanism. Additionally, the screw extension shaft is connected to the upper end of the screw, allowing for axial movement and rotation. The design ensures that the dead weight of the screw holding member automatically resists the reactive force of molten resin at the screw tip end portion.
Another patent by Tohbo describes a screw holding member that is guided in a vertical direction by two guide shafts. This design includes a ball screw that is integrally provided on the upper part of the screw holding member through a load cell. The ball nut, which is internally provided in an upper base through bearings, is rotated by an injection motor. This innovative mechanism allows for vertical driving of the ball screw and screw through the rotation of the ball nut.
Career Highlights
Yozo Tohbo is currently employed at Canon Kabushiki Kaisha, a leading company in imaging and printing technologies. His work at Canon has allowed him to focus on developing advanced injection molding solutions that enhance production efficiency and product quality.
Collaborations
Throughout his career, Tohbo has collaborated with notable colleagues, including Norio Nikaido and Hirofumi Sugawara. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Yozo Tohbo's contributions to injection molding technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of engineering principles and a dedication to improving manufacturing processes. Tohbo's work continues to influence the industry and inspire future inventors.