Saitama, Japan

Koichi Nakajima

This inventor holds 7 USPTO granted patents and 4 EPO patents. Top assignees: Honda Motor Co., Ltd., Nippon Leakless Industry Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha. Active years: 2005-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Nakajima. Retrieved from https://idiyas.com/inventor/koichi-nakajima-ptjg5j3h

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

Calculating rank

% Patents Active = 57.1

 

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 48(Granted Patents)


Location History:

  • Wako, JP (2012)
  • Saitama-ken, JP (2014)
  • Saitama, JP (2005 - 2015)

Company Filing History:


Years Active: 2005-2015

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7 patents (USPTO):Explore Patents

Title: Koichi Nakajima: Innovator in Metal Gaskets and Plant Control Systems

Introduction

Koichi Nakajima is a notable inventor based in Saitama, Japan. He holds a total of seven patents, showcasing his contributions to the fields of sealing technology and plant control systems. His innovative designs have significantly impacted various industries.

Latest Patents

One of Nakajima's latest patents is a metal gasket designed to minimize susceptibility to lift and thrust phenomena in housings. This gasket effectively functions as a seal at blowholes and features an embossment portion with a pair of outer and inner inclined portions. The design satisfies specific relationships regarding vertical and horizontal lengths, ensuring optimal sealing performance when sandwiched between two housings.

Another significant patent is a controller for a plant that manages controlled variables based on estimated values. This controller aims to reduce errors caused by solid variation or aging of the plant. It includes an estimated Inert-EGR value calculation section that utilizes a neural network to calculate the estimated value for the Inert-EGR amount. Additionally, it features an LAF sensor to detect the exhaust air-fuel ratio and a nonlinear adaptive corrector to minimize the estimated error between detected and estimated values.

Career Highlights

Throughout his career, Nakajima has worked with prominent companies, including Honda Motor Co., Ltd. and Nippon Leakless Industry Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in technology.

Collaborations

Nakajima has collaborated with notable coworkers such as Yuji Yasui and Eiji Hashimoto. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Koichi Nakajima's contributions to the fields of metal gaskets and plant control systems highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to solving complex engineering challenges and improving industrial 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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