Kanagawa, Japan

Makoto Kohtoku

This inventor holds 3 USPTO granted patents. Top assignees: Ebara-Udylite Co., Ltd., Chuo Kikai Co., Ltd, Jcu Corporation. Active years: 2013-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Kohtoku. Retrieved from https://idiyas.com/inventor/makoto-kohtoku

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


% Patents Active = 33.3

Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 6(Granted Patents)


Location History:

  • Kawasaki, JP (2013)
  • Kanagawa, JP (2018 - 2020)

Company Filing History:


Years Active: 2013-2020

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3 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Inventor Makoto Kohtoku**

Introduction

Makoto Kohtoku is a renowned inventor based in Kanagawa, Japan, recognized for his significant contributions to the field of materials processing. With a total of three patents to his name, Kohtoku has developed innovative technologies that enhance the production and quality of resin films and polyimide substrates.

Latest Patents

One of Makoto Kohtoku's latest patents is a **Wet Type Processing Apparatus for Resin Film**. This apparatus includes a processing bath designed to hold processing liquid, allowing resin films to be conveyed through it. Notably, it features a pair of conveyance members located on both the loading side and delivery side of the processing bath, with the delivery side positioned higher than the liquid surface. A unique spouting unit is also integrated into the design to direct processing liquid onto the resin film smoothly without contact, optimizing the processing efficiency.

Another remarkable invention by Kohtoku is the **Metal-Laminated Polyimide Substrate and Method for Production Thereof**. This innovative product aims to provide a durable laminated polyimide substrate while maintaining optimal adhesion between the polyimide film and the metal layer. It consists of a polyimide layer, an alkali-treated layer containing an anionic functional group, and a metal layer. This structure ensures various properties are effectively controlled over time, even under stringent conditions.

Career Highlights

Makoto Kohtoku has held key positions within notable companies, such as Ebara-udylite Co., Ltd. and JCU Corporation. His experiences in these organizations have contributed to his expertise and innovative approach to materials processing, allowing him to develop groundbreaking technologies.

Collaborations

Throughout his career, Kohtoku has collaborated with talented colleagues, including Mika Hamada and Shinya Ochi. Their collective efforts have propelled advancements in their projects and fostered a creative environment for innovation.

Conclusion

In summary, Makoto Kohtoku's inventive spirit and technical prowess have led to pioneering advancements in resin film processing and polyimide substrate production. His patents reflect a deep understanding of material properties and processing methodologies, contributing significantly to the field and inspiring future innovations in materials technology.

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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