Hyogo, Japan

Tohru Koyama

This inventor holds 13 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Renesas Technology Corp., Ryoden Semiconductor System Engineering Corporation. Active years: 1993-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tohru Koyama. Retrieved from https://idiyas.com/inventor/tohru-koyama-555dg641

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

Calculating rank

% Patents Active = 84.6

Average Co-Inventor Count = 1.7

ph-index = 9

Forward Citations = 173(Granted Patents)


Location History:

  • Hyogo, JP (1993 - 1999)
  • Tokyo, JP (1998 - 2005)

Company Filing History:


Years Active: 1993-2005

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13 patents (USPTO):Explore Patents

Title: Tohru Koyama: Innovator in Semiconductor Manufacturing

Introduction

Tohru Koyama is a distinguished inventor based in Hyogo, Japan, celebrated for his contributions to the field of semiconductor technology. With 13 patents to his name, Koyama has significantly influenced the design and manufacturing processes of semiconductor devices.

Latest Patents

One of Koyama's latest innovations is a method for manufacturing semiconductor devices that incorporate a MIM (Metal-Insulator-Metal) capacitor element. This intricate process involves several steps, including the formation of interlayer insulation films, the deposition of metal and antireflection films, and the patterning of these materials to create electrodes. The patented method emphasizes the careful layering and removal of materials to create highly efficient semiconductor components, showcasing Koyama's expertise in semiconductor fabrication.

Career Highlights

Koyama has had a notable career, with significant positions at prestigious companies such as Mitsubishi Electric Corporation and Renesas Technology Corporation. His work has consistently focused on advancing semiconductor technologies, which has paved the way for more efficient electronic devices.

Collaborations

Throughout his career, Koyama has collaborated with other notable professionals in the industry, including Katsuhiko Tamura and Yasuna Nakamura. These partnerships have led to innovative breakthroughs and advancements in semiconductor manufacturing techniques, enhancing the efficiency and performance of electronic components.

Conclusion

Tohru Koyama’s impactful innovations and collaborations in the semiconductor industry reflect his dedication to advancing technology. With a robust portfolio of patents and a successful career, Koyama continues to influence the evolution of semiconductor manufacturing techniques, contributing to the industry's growth and development.

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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