Yokohama, Japan

Hirofumi Sugawara

This inventor holds 5 USPTO granted patents. Top assignee: Canon Kabushiki Kaisha. Active years: 1992-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Sugawara. Retrieved from https://idiyas.com/inventor/hirofumi-sugawara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 5.1

ph-index = 4

Forward Citations = 38(Granted Patents)


Location History:

  • Yokohama, JP (1992 - 1993)
  • Chichibu, JP (1994 - 1995)

Company Filing History:


Years Active: 1992-1995

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5 patents (USPTO):Explore Patents

Title: Hirofumi Sugawara: Innovator in Injection Molding Technology

Introduction

Hirofumi Sugawara is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of injection molding technology, holding a total of 5 patents. His innovative designs have improved the efficiency and functionality of injection molding apparatuses.

Latest Patents

One of Sugawara's latest patents is a motor-driven vertical type injection molding apparatus. This apparatus features a simple structure that provides stable screw back pressure. It includes 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 and is designed to be movable in the axial direction and rotatable. This innovative design allows for precise control during the injection process.

Another notable patent by Sugawara involves a screw holding member that is guided in a vertical direction by two guide shafts. This design incorporates 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 screwed to the ball screw, is housed internally in the upper base through bearings. The rotation of the ball nut is driven by an injection motor, allowing for vertical movement of the ball screw and screw.

Career Highlights

Hirofumi Sugawara has built a successful career at Canon Kabushiki Kaisha, where he has been instrumental in developing advanced injection molding technologies. His work has not only enhanced the company's product offerings but has also contributed to the broader field of manufacturing technology.

Collaborations

Throughout his career, Sugawara has collaborated with talented individuals such as Ryohei Inaba and Yozo Tobo. These collaborations have fostered innovation and have led to the development of cutting-edge technologies in the injection molding sector.

Conclusion

Hirofumi Sugawara is a distinguished inventor whose work in injection molding technology has made a significant impact. His innovative patents and contributions to Canon Kabushiki Kaisha highlight his expertise and dedication to advancing manufacturing processes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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