Tochigi, Japan

Kohji Ohtsuka

This inventor holds 4 USPTO granted patents and 2 EPO patents. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 2007-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohji Ohtsuka. Retrieved from https://idiyas.com/inventor/kohji-ohtsuka

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

Calculating rank

% Patents Active = 25.0


Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 39(Granted Patents)


Location History:

  • Kawachi-gun, JP (2007)
  • Tochigi, JP (2008 - 2011)

Company Filing History:


Years Active: 2007-2011

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4 patents (USPTO):Explore Patents

Title: Kohji Ohtsuka: Innovator in Liquid Crystal Display Technology

Introduction

Kohji Ohtsuka is a prominent inventor based in Tochigi, Japan. He has made significant contributions to the field of liquid crystal display technology. With a total of 4 patents to his name, Ohtsuka has demonstrated a commitment to innovation and excellence in his work.

Latest Patents

One of Ohtsuka's latest patents involves a backlight unit and a liquid crystal display device utilizing this backlight unit. The design includes a fluorescent lamp that illuminates a liquid crystal panel. It features a reflection unit that directs light from the fluorescent lamp and a diffusion unit that disperses this light. The reflectance or transmittance in both horizontal and vertical directions is controlled by applying a dot pattern that gradually increases in density from the center to the edges. This innovative approach creates a brightness gradient, ensuring that the central portion of the liquid crystal panel is brighter than the peripheral areas.

Career Highlights

Ohtsuka is currently associated with Sharp Kabushiki Kaisha Corporation, a leading company in the electronics industry. His work has been instrumental in advancing display technologies, particularly in enhancing the visual quality of liquid crystal displays.

Collaborations

Throughout his career, Ohtsuka has collaborated with notable colleagues, including Yutaka Inoue and Takashi Yoshii. These partnerships have contributed to the development of cutting-edge technologies in the field.

Conclusion

Kohji Ohtsuka's contributions to liquid crystal display technology highlight his innovative spirit and dedication to improving visual experiences. His patents reflect a deep understanding of the complexities involved in display technology, making him a key figure in this 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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