Kawachinagano, Japan

Shigeaki Okuyama

This inventor holds 1 USPTO granted patent. Top assignee: Kubotatekko Kabushiki Kaisha. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeaki Okuyama. Retrieved from https://idiyas.com/inventor/shigeaki-okuyama-bktn16d2

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 = 5.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: Shigeaki Okuyama and Agricultural Vehicle Load Control

Introduction

Shigeaki Okuyama is an inventor associated with Kawachinagano, Japan. His recorded work focuses on agricultural machinery and controlling engine load during rotary field operations.

Latest Patents

Okuyama is credited with 1 patent, titled “Tractor Type Vehicle Including Engine and Load Control Therefor.” The invention concerns load control for an agricultural vehicle engine operating a rotary implement. It automatically raises or lowers the implement based on engine rotation and measured working depth, helping maintain the desired depth while reducing the risk of engine stoppage under heavy load. If engine rotation falls below a predetermined level, the system raises the implement to help prevent engine failure.

Career Highlights

Okuyama’s documented patent work is associated with Kubotatekko Kabushiki Kaisha, presented here as Kubota Iron Works Co., Ltd. His invention addresses the practical challenge of balancing working depth with engine protection during agricultural operations.

Collaborations

The supplied information identifies Masamichi Hino and Katsumi Ito as Okuyama’s coworkers. Their specific roles in the patent or related work are not provided.

Conclusion

Shigeaki Okuyama’s recorded invention applies automatic implement control to help agricultural vehicles maintain working depth while protecting the engine from excessive load.

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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