Tokyo, Japan

Yuji Ooba

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Ooba. Retrieved from https://idiyas.com/inventor/yuji-ooba-feuwwqym

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 2

Forward Citations = 50(Granted Patents)


Company Filing History:


Years Active: 1990

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2 patents (USPTO):Explore Patents

Title: Innovations of Yuji Ooba

Introduction

Yuji Ooba is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of recording technology, holding a total of 2 patents. His work focuses on the development of advanced recording apparatuses utilizing liquid crystal technology.

Latest Patents

One of Yuji Ooba's latest patents is a "Recording apparatus and method utilizing an array of liquid crystal cells." This invention features a two-dimensional recording head that controls the windows of a liquid crystal cell array for light exposure. The design includes a light source and an image-forming lens system that exposes a recording medium to an image formed by the controlled states of the windows. A controller regulates the quantity of light applied to the recording medium, ensuring precise exposure based on a binary image signal.

Another significant patent is the "Liquid crystal cell array and method for driving the same." This invention involves a first transparent substrate with multiple transparent electrodes and cell drive lines. A second transparent substrate is positioned opposite the first, creating a gap filled with liquid crystal to form a cell array. The invention allows for the simultaneous application of voltages to control the aperture ratios of all cell windows, enhancing the functionality of the liquid crystal display.

Career Highlights

Yuji Ooba is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of recording technologies. His work has contributed to advancements in liquid crystal applications, making significant impacts in various industries.

Collaborations

Yuji Ooba has collaborated with notable coworkers, including Tadaaki Masumori and Shigeo Sugihara. Their combined expertise has fostered a productive environment for innovation and development in their respective fields.

Conclusion

Yuji Ooba's contributions to recording technology through his patents demonstrate his commitment to innovation. His work at Nippon Telegraph and Telephone Corporation continues to influence advancements in liquid crystal technology.

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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