Tokyo, Japan

Isao Kamiyama

This inventor holds 8 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Sony Corporation, Joled Inc.. Active years: 1989-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Kamiyama. Retrieved from https://idiyas.com/inventor/isao-kamiyama

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


% Patents Active = 62.5

Average Co-Inventor Count = 1.7

ph-index = 4

Forward Citations = 52(Granted Patents)


Location History:

  • Hyogo, JP (1989)
  • Kanagawa, JP (2005)
  • Tokyo, JP (2002 - 2021)

Company Filing History:


Years Active: 1989-2021

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8 patents (USPTO):Explore Patents

Title: The Innovations of Isao Kamiyama: A Pioneer in Organic EL Display Technology

Introduction: Isao Kamiyama is a distinguished inventor based in Tokyo, Japan, known for his significant contributions to the field of organic electroluminescent (EL) display technology. With an impressive portfolio of eight patents, he has been instrumental in the development of cutting-edge display systems that promise to advance visual technologies in various applications.

Latest Patents: Among his latest innovations are three notable patents: the Method of Manufacturing an Organic EL Display Panel, the Organic EL Display Panel, and the Organic EL Display Device. The patent for the Method of Manufacturing an Organic EL Display Panel delineates a sophisticated process that incorporates several essential steps. It begins with preparing a substrate and forming pixel electrodes arranged in a matrix of rows and columns. Banks that extend in a column direction are created between the pixel electrodes in the row direction. Following this, a first light-emitting layer is formed by applying an ink containing a light-emitting material into a specified gap between these banks. A second layer is subsequently formed using a vapor deposition method, ensuring it is continuous above the first light-emitting layer and the pixel electrodes. This innovation also details the construction of a counter electrode that is positioned above the second light-emitting layer, with specific design considerations for the height of the banks. The Organic EL Display Device patent describes the architecture of a display area that includes multiple organic EL elements aligned appropriately, along with structures that facilitate its functionality, including an organic insulating film and grooves that enhance operational efficiency.

Career Highlights: Kamiyama's career spans notable tenures at prominent companies, including Mitsubishi Electric Corporation and Sony Corporation. His work at these leading technology firms has solidified his reputation as an innovator in the field, allowing him to pioneer new methods and devices that push the boundaries of display technology.

Collaborations: Throughout his career, Isao Kamiyama has collaborated with esteemed professionals in the industry, including Masatoshi Takeda and Takao Mori. These partnerships have not only enriched his projects but have also fostered an environment of collaborative innovation, leading to groundbreaking advancements in organic EL technology.

Conclusion: Isao Kamiyama stands out as a remarkable inventor whose work continues to shape the future of display technologies. His patents and the innovative processes he has developed hold significant promise for the industry, which is increasingly leaning towards organic and sustainable solutions. As technology evolves, Kamiyama's contributions will undoubtedly remain influential in the evolution of visual experiences.

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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