Tatsuno, Japan

Ryoichi Nozawa

This inventor holds 96 USPTO granted patents and 8 published patent applications, primarily in Organic Electroluminescent Devices (CPC class H01L27-3276). Top assignees: Seiko Epson Corporation, Lumitek Display Technology Limited. Active years: 2004-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoichi Nozawa. Retrieved from https://idiyas.com/inventor/ryoichi-nozawa

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

USPTO Granted Patents = 96 

% Patents Active = 88.5

Average Co-Inventor Count = 2.3

ph-index = 10

Forward Citations = 477(Granted Patents)

Forward Citations (Not Self Cited) = 438(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Nagano-ken, JP (2008 - 2011)
  • Nagano, JP (2014)
  • Kamiina-gun, JP (2020 - 2022)
  • Tatsuno-machi, JP (2004 - 2024)
  • Shiojiri, JP (2015 - 2024)

Company Filing History:


Years Active: 2004-2025

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Areas of Expertise:
Organic Electroluminescent Device
Light-Emitting Device
Electro-Optical Device
Electronic Apparatus
Light Reflection Layer
Capacitive Electrode
Insulation Layer
Pixel Electrodes
Manufacturing Method
Electro-Optical Apparatus
Electronic Equipment
Power Supply Line
96 patents (USPTO):Explore Patents

Title: Ryoichi Nozawa: Innovator Extraordinaire at Seiko Epson Corporation

Introduction:

Throughout his distinguished career, Ryoichi Nozawa has consistently demonstrated his innovative mindset and technical expertise, leading to the successful development of numerous groundbreaking inventions. Based in Tatsuno-machi, Japan, Nozawa has accumulated an impressive portfolio of 90 patents. In this article, we will explore some of his latest patents, highlight his remarkable career achievements, and delve into his collaborations with colleagues Takeshi Koshihara and Hitoshi Ota.

Latest Patents:

Ryoichi Nozawa's latest patents showcase his contributions to the field of organic electroluminescent devices and electronic apparatus. The first invention involves an electroluminescent device comprising a light-emitting element, a drive transistor, a first conductive layer, and a second conductive layer. The unique arrangement of these components allows for efficient energy transfer and control, resulting in enhanced performance and visual quality.

The second patent focuses on a light-emitting device equipped with a light reflection layer, insulation layers, and multiple pixel electrodes. By employing different thicknesses in the insulation layers and strategic positioning of pixel electrodes, Nozawa's design optimizes light emission, improves color accuracy, and reduces power consumption in electronic equipment.

Career Highlights:

Nozawa's career at Seiko Epson Corporation, a renowned electronics company, has been marked by numerous milestones and accomplishments. Over the years, his relentless pursuit of innovation has resulted in the development and patenting of various cutting-edge technologies. With a total of 90 patents to his name, Nozawa has played a crucial role in advancing the field of electronic devices and finding creative solutions to complex challenges.

Collaborations:

Innovation often thrives in a collaborative environment, and Nozawa has collaborated with notable colleagues, including Takeshi Koshihara and Hitoshi Ota. These collaborations have further strengthened his expertise and allowed for the exchange of ideas, leading to the development of novel technologies. Working together, Nozawa and his colleagues have made significant contributions to their field and have solidified their positions as influential inventors in their company.

Conclusion:

Ryoichi Nozawa stands as an exemplary figure in the realm of innovations and patents. His remarkable career at Seiko Epson Corporation has been characterized by an unwavering commitment to pushing the boundaries of technological advancement. With an impressive patent count and groundbreaking inventions in organic electroluminescent devices and electronic apparatus, Nozawa's contributions have had a lasting impact on the industry. Collaborating with talented colleagues like Takeshi Koshihara and Hitoshi Ota has only further enriched his innovation journey. As Nozawa continues to explore new frontiers, the world eagerly anticipates the next wave of groundbreaking inventions from this exceptional innovator.

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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