Matsumoto, Japan

Koichi Akiyama

This inventor holds 146 USPTO granted patents and 8 EPO patents, primarily in Light Source Technology (CPC class G03B21-204). Top assignees: Seiko Epson Corporation, Seiko Epson Corporalion. Active years: 2002-2026.

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

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


% Patents Active = 77.4

 

Average Co-Inventor Count = 1.1

ph-index = 10

Forward Citations = 348(Granted Patents)

Forward Citations (Not Self Cited) = 316(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Suwa, JP (2003 - 2007)
  • Matsumoto, JP (2002 - 2022)
  • Azumino, JP (2021 - 2023)

Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Wavelength Converter
Light Source Apparatus
Projector
Illuminator
Display Device
Light Modulator
Illumination Device
Wave Plates
Thermal Management
Optical Systems
Projection Technology
Light Source Device
146 patents (USPTO):Explore Patents

Title: Koichi Akiyama: Pioneering Innovator in Light Technology

Introduction:

Koichi Akiyama, a prominent inventor hailing from Matsumoto, Japan, has made remarkable contributions to the field of light technology. With an impressive collection of 138 patents to his name, Akiyama's expertise and ingenuity have helped shape the world of projectors and illuminators. This article delves into his latest patents, career highlights, notable collaborations, and reflects on his lasting impact on the industry.

Latest Patents:

Akiyama's inventive spirit continues to shine through in his latest patents. One of his notable inventions is the "Light source apparatus and projector." This apparatus incorporates multiple light sources that emit luminous flux in different directions, creating an overlapping illumination pattern. By utilizing a polarization combiner, Akiyama's invention optimizes light transmission and reflection, resulting in enhanced projection capabilities.

Another remarkable invention by Akiyama is the "Illuminator and projector." This innovative illuminator features a unique combination of a light source, a wavelength converter, and optical elements to efficiently manipulate light wavelengths. By reflecting and transmitting specific wavelength bands, Akiyama's invention provides advanced control over optical output, leading to improved projector performance.

Career Highlights:

Akiyama has spent his professional career at Seiko Epson Corporation, a globally renowned technology company known for its contributions to various industries. Within Seiko Epson Corporation, Akiyama has played a pivotal role in advancing the field of light technology. His extensive patent portfolio is a testament to his commitment to innovation and his dedication to pushing the boundaries of what is possible in projector and illuminator design.

Collaborations:

In his quest for groundbreaking inventions, Akiyama has collaborated closely with esteemed colleagues within the industry. Notably, he has worked alongside individuals such as Nobuo Shimizu and Shinichi Yotsuya, both accomplished innovators in their own right. Through these collaborations, Akiyama has fostered a vibrant exchange of ideas, allowing for the development of cutting-edge technologies and solutions.

Conclusion:

Koichi Akiyama's unwavering passion for light technology and his relentless pursuit of innovation have propelled him to the forefront of the industry. His extensive portfolio of patents, including his latest inventions in light source apparatus and projector technology, demonstrates his unique ability to push boundaries and introduce transformative advancements. Akiyama's contributions within Seiko Epson Corporation and his collaborations with remarkable individuals like Shimizu and Yotsuya further solidify his reputation as a pioneering force in the field. As Akiyama's journey continues, it is certain that his future endeavors will continue to shape the landscape of the light technology industry for years to come.

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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