Tokyo, Japan

Masatoshi Oba

This inventor holds 2 USPTO granted patents. Top assignee: Dai Nippon Printing Co., Ltd.. Active years: 2013-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Oba. Retrieved from https://idiyas.com/inventor/masatoshi-oba-yxql4tra

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

Calculating rank

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Location History:

  • Kitakatsushika-Gun, JP (2013)
  • Tokyo-to, JP (2017)

Company Filing History:


Years Active: 2013-2017

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2 patents (USPTO):Explore Patents

Title: Masatoshi Oba: Innovator in Organic EL Display Technology

Introduction

Masatoshi Oba is a prominent inventor based in Tokyo-to, Japan. He has made significant contributions to the field of organic electroluminescent (EL) display technology. With a total of 2 patents, his work focuses on enhancing the performance and quality of display devices.

Latest Patents

Oba's latest patents include innovations that address common issues in organic EL displays. One of his patents is for a color filter forming substrate and organic EL display device. This invention aims to prevent color shift or color mixing in images displayed in each pixel, which can occur due to light entry from adjacent pixels. The color filter forming substrate is designed to create distinct pixel regions while incorporating multiple color-filter-forming layers.

Another notable patent is for a color filter that can be manufactured through a simplified process, ensuring that it does not short-circuit an electrode of a thin-film transistor (TFT) substrate. This color filter consists of a substrate with red, green, and blue layers, where the green and blue layers are laminated on the red layer to form a spacer. This innovative design enhances the overall functionality of the display.

Career Highlights

Masatoshi Oba is associated with Dai Nippon Printing Co., Ltd., where he continues to develop cutting-edge technologies in the display sector. His work has been instrumental in advancing the capabilities of organic EL displays, making them more efficient and reliable.

Collaborations

Oba has collaborated with notable colleagues, including Atsushi Ono and Hiroki Sakata. Their combined expertise has contributed to the successful development of innovative display technologies.

Conclusion

Masatoshi Oba's contributions to organic EL display technology highlight his role as a leading inventor in the field. His patents reflect a commitment to improving display quality and functionality, making significant strides in the industry.

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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