Kobe, Japan

Sakuji Tsunemitsu, Deceased

This inventor holds 1 USPTO granted patent. Top assignee: Yamada Machinery Industrial Co., Ltd.. Active years: 1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sakuji Tsunemitsu, Deceased. Retrieved from https://idiyas.com/inventor/sakuji-tsunemitsu-deceased

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 27(Granted Patents)


Company Filing History:


Years Active: 1989

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1 patent (USPTO):Explore Patents

Title: Sakuji Tsunemitsu: Innovator in Portable Power Tools

Introduction

Sakuji Tsunemitsu was a notable inventor from Kobe, Japan, recognized for his contributions to the field of portable power tools. His innovative designs have left a lasting impact on the industry, showcasing his engineering prowess and creativity.

Latest Patents

Tsunemitsu held a patent for a portable power tool, which features a support tube connected to an engine through an intervening clutch casing. The design includes a slider tube that is slidably fitted to the support tube and is spring-biased forward. A connecting rod is attached to the front end of the slider tube, pivotally supporting a cutter holder. The rotary cutter is rotatably supported by the holder, and a flexible shaft transmits the engine's drive force to the cutter for rotation. The tool also incorporates a lever mounted on the rear portion of the slider tube, with a wire extending rearward from the lever for connection to the clutch casing. This innovative mechanism allows the holder to pivotally move, changing the orientation of the cutter when the lever is activated. Tsunemitsu's patent is a testament to his ingenuity, with a total of 1 patent to his name.

Career Highlights

Throughout his career, Sakuji Tsunemitsu worked at Yamada Machinery Industrial Co., Ltd., where he contributed significantly to the development of power tools. His work not only advanced the technology but also improved the usability and efficiency of portable tools in various applications.

Collaborations

Tsunemitsu collaborated with Akio Yamada, a fellow innovator, to enhance the design and functionality of their products. Their partnership exemplified the spirit of teamwork in the pursuit of innovation.

Conclusion

Sakuji Tsunemitsu's legacy as an inventor is marked by his innovative designs in portable power tools. His contributions continue to influence the industry, and his patent remains a significant achievement in engineering.

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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