This inventor holds 3 USPTO granted patents. Top assignees: Japan Power Fastening Co,. Ltd., Illinois Tool Works Inc.. Active years: 1996-2011.
Location History:
- Toyonaka, JP (1996)
- Osaka, JP (1997 - 2011)
Company Filing History:
Years Active: 1996-2011
Title: Innovations of Yuji Dohi
Introduction
Yuji Dohi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of fastening technology, holding a total of 3 patents. His innovative designs have improved the efficiency and effectiveness of various fastening applications.
Latest Patents
One of Yuji Dohi's latest patents is the self-penetrating screw. This screw features a shaft with a trumpet-shaped head at the base end and a narrow-tip portion at the tip end. The shaft has varying diameters, with a small-diameter portion adjacent to the narrow-tip and a large-diameter portion near the head. The design includes two screw threads on the small-diameter portion and one on the large-diameter portion, allowing for a division into double-thread and single-thread portions. Notably, the screw threads in the double-thread portion have different heights, making it particularly effective for fastening plasterboard to frame members.
Another significant invention is the portable fastener driver using inflammable gas. This device operates by receiving electric power from an external source. When the trigger is pulled, the ignition plug ignites gas in a combustion chamber, pushing a piston forward to drive a nail through a connected driving rod. This innovative approach enhances the efficiency of fastening tasks.
Career Highlights
Throughout his career, Yuji Dohi has worked with prominent companies, including Japan Power Fastening Co., Ltd. and Illinois Tool Works Inc. His experience in these organizations has contributed to his expertise in fastening technologies and product development.
Collaborations
Yuji Dohi has collaborated with various professionals in the industry, including his coworker Ernest J. Wendling. These collaborations have fostered innovation and the exchange of ideas in the field of fastening technology.
Conclusion
Yuji Dohi's contributions to fastening technology through his patents and career experiences highlight his role as an influential inventor. His innovative designs continue to impact the industry positively.