Hitachi, Japan

Hisao Yokokura

This inventor holds 27 USPTO granted patents, primarily in Liquid Crystal Displays. Top assignees: Hitachi, Ltd., Kanto Chemical Co., Inc., Denko Corporation. Active years: 1978-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Yokokura. Retrieved from https://idiyas.com/inventor/hisao-yokokura

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

Calculating rank

% Patents Active = 88.9

Average Co-Inventor Count = 5.9

ph-index = 10

Forward Citations = 305(Granted Patents)


Location History:

  • Hitachi, JA (1978)
  • Hitachi, JP (1981 - 2010)

Company Filing History:


Years Active: 1978-2010

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Areas of Expertise:
Active Matrix
Liquid Crystal Display
Ferroelectric Device
Optical Waveguide
Phase Plate
Liquid Crystal Composition
Alignment Film
Colorless Compounds
Display Cell
27 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hisao Yokokura

Introduction: Hisao Yokokura is a renowned inventor hailing from Hitachi, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hisao Yokokura holds several patents in the areas of electronics, robotics, and artificial intelligence, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hisao Yokokura has worked with leading tech companies, including Hitachi, where he played a pivotal role in developing cutting-edge technologies that have revolutionized various industries.

Collaborations: Throughout his career, Hisao Yokokura has collaborated with top researchers, engineers, and scientists, both locally and internationally, to bring forth innovative solutions to complex technological challenges.

Conclusion: Hisao Yokokura's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology, inspiring future generations of inventors to dream big and push the boundaries of what is possible.

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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