Anjo, Japan

Koichi Maruyama

This inventor holds 7 USPTO granted patents and 4 EPO patents. Top assignees: Aisin Seiki Kabushiki Kaisha, Aisin Corporation. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Maruyama. Retrieved from https://idiyas.com/inventor/koichi-maruyama-1lvoxsz1

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


% Patents Active = 28.6

 

Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 23(Granted Patents)


Location History:

  • Anjo, JP (2018 - 2019)
  • Obu, JP (2019)
  • Kariya, JP (2011 - 2022)

Company Filing History:


Years Active: 2011-2025

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7 patents (USPTO):Explore Patents

Title: Koichi Maruyama: Innovator in Valve Technology

Introduction

Koichi Maruyama is a notable inventor based in Anjo, Japan. He has made significant contributions to the field of valve technology, holding a total of 7 patents. His innovative designs have advanced the functionality and efficiency of various valve systems.

Latest Patents

One of his latest patents is a rotary valve that features a housing, multiple rotors, a linkage mechanism, and an electric actuator. This valve includes a drive rotor that is driven and rotated by the electric actuator, along with a driven rotor that receives the driving rotational force through the linkage mechanism. The linkage mechanism is designed to switch between a transmission mode, where the contact portion engages with the contacted portion to transmit force, and a non-transmission mode, where the two portions are separated to prevent force transmission.

Another significant patent is for a valve device and its assembly method. This device consists of a housing with a cylindrical internal wall, a fluid introduction path, and a fluid discharge path. It also includes a valve element that connects the fluid paths, a rotation mechanism for the valve element, and a seal member that contacts the rotating valve element. This innovative design enhances the efficiency of fluid management within various systems.

Career Highlights

Throughout his career, Koichi Maruyama has worked with prominent companies such as Aisin Seiki Kabushiki Kaisha and Aisin Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in valve technology.

Collaborations

Koichi has collaborated with talented individuals in the field, including Naoto Yumisashi and Yojiro Koga. These partnerships have fostered a creative environment that has led to the development of advanced technologies.

Conclusion

Koichi Maruyama's contributions to valve technology through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements in fluid management systems.

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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