Kanagawa, Japan

Masahito Ishikawa

This inventor holds 6 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Techno Center Inc.. Active years: 1991-2002.


% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 6

Forward Citations = 202(Granted Patents)


Location History:

  • Yokosuka, JP (1991)
  • Kanagawa, JP (1993)
  • Yokohama, JP (1995)
  • Kanagawa-ken, JP (1997 - 2002)

Company Filing History:


Years Active: 1991-2002

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6 patents (USPTO):Explore Patents

Title: The Innovative Mind of Masahito Ishikawa

Introduction: Masahito Ishikawa, an accomplished inventor from Kanagawa-ken, Japan, has made significant contributions to the field of liquid crystal technology. With a remarkable portfolio of six patents, his work addresses critical challenges in the performance of liquid crystal display devices, enhancing their functionality and usability.

Latest Patents: Among his latest innovations is a patent for a liquid crystal display device that incorporates compensation for viewing angle dependency. This technology features an intricate design where a driving liquid crystal cell is sandwiched between two polarizers. The liquid crystal layer, which exhibits a twisted molecular alignment when no voltage is applied, is optimized for optical control. By integrating an optical anisotropic element between the polarizer and the driving cell, Ishikawa ensures that the optical rotatory power is minimal in the layer's thickness direction, which is crucial for achieving desired viewing characteristics. Additionally, he has developed an electrooptical liquid crystal device that employs an OCB mode liquid crystal cell along with an optically anisotropic element to enhance viewing angle characteristics, demonstrating his innovative spirit and commitment to advancing liquid crystal technology.

Career Highlights: Ishikawa’s career has seen him work with prestigious companies, notably Kabushiki Kaisha Toshiba and Toshiba Techno Center Inc. His experience at these firms has allowed him to explore various avenues of innovation within the field of optics and display technologies, making substantial impacts on product development and research.

Collaborations: Throughout his career, Ishikawa has collaborated with notable peers such as Hitoshi Hatoh and Masumi Okamoto. These partnerships have likely contributed to the depth and breadth of his innovations, showcasing the importance of teamwork in the research and development ecosystem.

Conclusion: Masahito Ishikawa's contributions to liquid crystal technology highlight the transformative potential of innovation in the display industry. His latest patents demonstrate a keen understanding of optical principles and their practical applications, ensuring that liquid crystal devices continue to improve. As technology advances, the work of visionary inventors like Ishikawa remains invaluable in shaping the future landscape of visual communication.

Profile summary based on public USPTO records.
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