Hiroshima, Japan

Kazushige Koiwai

This inventor holds 19 USPTO granted patents and 7 published patent applications and 19 EPO patents. Top assignees: Kobelco Construction Machinery Co., Ltd., Hiroshima University, Kobelco Construction Machinery. Active years: 2015-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazushige Koiwai. Retrieved from https://idiyas.com/inventor/kazushige-koiwai

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

USPTO Granted Patents = 19 

% Patents Active = 89.5

 

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 2015-2026

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19 patents (USPTO):Explore Patents

Title: Inventor Kazushige Koiwai: Innovations in Hydraulic and Construction Technology

Introduction

Kazushige Koiwai is a prominent inventor located in Hiroshima, Japan. With a remarkable portfolio of 14 patents, he has significantly contributed to the fields of hydraulic machinery and construction technologies. His inventions demonstrate a keen understanding of mechanical systems and control mechanisms, aimed at enhancing operational efficiency and functionality.

Latest Patents

Kazushige Koiwai's latest patents include advanced devices designed to optimize hydraulic work machines. One notable invention is a pump control device that utilizes a sophisticated instruction calculator to determine control instructions based on manipulation amounts and control parameters. This device is particularly effective in reducing discrepancies between actual and ideal outputs during power running operations. Another patent features a valve control device that similarly adjusts its parameters to align control outputs with ideal outputs during non-power running operations.

In addition, Koiwai has developed a construction machine that integrates essential components including a lower traveling body and an upper slewing body, designed for increased flexibility and efficiency. Among its notable features is a motion state acquisition unit that gathers data on the machine's motion state, alongside a parameter estimation unit that evaluates system characteristics to enhance operational skill assessments.

Career Highlights

Kazushige Koiwai has made significant strides in his career by working with renowned companies such as Kobelco Construction Machinery Co., Ltd. and Hiroshima University. His tenure at these institutions has provided him with the platform to apply his innovative ideas and develop cutting-edge technologies that address real-world engineering challenges.

Collaborations

Throughout his career, Koiwai has collaborated with esteemed colleagues, including Seiji Saiki and Yoichiro Yamazaki. These partnerships have fostered a collaborative environment that promotes the sharing of ideas and techniques, further driving innovation within their respective fields.

Conclusion

Kazushige Koiwai stands out as a key figure in the landscape of hydraulic and construction technology. With his extensive patent portfolio and collaborative spirit, he continues to influence the industry, paving the way for future advancements. His dedication to improving machine performance and operational efficiency remains a testament to his innovative mindset and engineering expertise.

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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