Moriyama, Japan

Masahiko Ohji

This inventor holds 4 USPTO granted patents. Top assignee: Nippon Electric Glass Co., Ltd.. Active years: 1991-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Ohji. Retrieved from https://idiyas.com/inventor/masahiko-ohji

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


% Patents Active = 75.0

Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 45(Granted Patents)


Location History:

  • Shiga, JP (1991)
  • Moriyama, JP (2000 - 2004)

Company Filing History:


Years Active: 1991-2004

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4 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masahiko Ohji

Introduction

Masahiko Ohji, an accomplished inventor from Moriyama, Japan, is recognized for his contributions to the field of plasma display technology. With a total of four patents to his name, Ohji has made significant strides in the development of materials that enhance the efficiency and performance of plasma display panels.

Latest Patents

Ohji's latest innovations include the development of a barrier ribs material specifically designed for plasma display panels. This material comprises a unique combination of glass powder and a silica-based filler powder, which includes both fused silica powder and α-quartz powder. Notably, a portion of the silica-based filler powder is spherical in shape, resulting in enhanced material properties, while the remainder may consist of aspherical filler powder, with a mass ratio of spherical to aspherical filler powder ranging from 30:70 to 100:0.

In addition, Ohji has patented a dielectric forming material and dielectric forming paste intended for use in plasma display panels. This material is designed for the transparent dielectric layer formed on the inside surface of a front glass substrate. It comprises powdered colored glass, which includes a base glass mixed with various coloring ingredients, specifically cobalt oxide (CoO) and nickel oxide (NiO). This formulation allows for the creation of a glass film that achieves a spectral transmittance of 50-75% at a wavelength of 460 nm, or higher transmittance values at the wavelengths of 550 nm and 620 nm.

Career Highlights

Throughout his career, Masahiko Ohji has been employed at Nippon Electric Glass Co., Ltd., where he has devoted his expertise to the development of advanced materials for display technologies. His research and development efforts have propelled the company to the forefront of the plasma display panel industry.

Collaborations

Ohji has collaborated with several notable coworkers, including Kazuo Hadano and Hiroyuki Oshita. Together, they have combined their knowledge and expertise to further enhance innovations in materials suitable for plasma display applications.

Conclusion

Masahiko Ohji's inventive spirit and dedication to research have yielded significant advancements in plasma display panel technology. His contributions serve as a testament to the importance of innovation in the ever-evolving electronics landscape, influencing the future of display technologies globally.

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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