Tokyo, Japan

Tsuyoshi Kashiwagi

This inventor holds 29 USPTO granted patents and 10 published patent applications and 3 EPO patents, primarily in Optical Display Technology. Top assignee: Dai Nippon Printing Co., Ltd.. Active years: 2002-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsuyoshi Kashiwagi. Retrieved from https://idiyas.com/inventor/tsuyoshi-kashiwagi

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

USPTO Granted Patents = 29 

% Patents Active = 69.0

 

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 37(Granted Patents)


Location History:

  • Shinjuku-Ku, JP (2011)
  • Mihara, JP (2012)
  • Tokyo-to, JP (2011 - 2023)
  • Tokyo, JP (2002 - 2024)

Company Filing History:


Years Active: 2002-2025

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Areas of Expertise:
Optical Film
Display Device
Image Source Unit
Daylighting Sheet
Light Controlling Member
Optical Sheet
Hologram Recording
Transmission Screen
Optical Diffusing Sheet
Manufacturing Method
Exposure Apparatus
Full-Color Hologram
29 patents (USPTO):Explore Patents

Title: Pioneering Innovations: Tsuyoshi Kashiwagi and His Contributions to Optical Technology

Introduction: Tsuyoshi Kashiwagi, based in Tokyo-to, Japan, is an esteemed inventor known for his significant contributions in the realm of optical technology. With an impressive portfolio of 28 patents, Kashiwagi has been a driving force in advancing optical film and display technologies. His innovative work is not only notable for its complexity but also for its impactful applications in various electronic devices.

Latest Patents: Among his most recent patents, Kashiwagi has made notable strides in developing advanced optical films. One such patent describes an optical film that incorporates a unique low-refractive-index layer featuring multiple lens portions, coupled with a high-refractive-index layer that fills the gaps between these lens portions. This design includes columnar-shaped lens portions with flat ends, arranged in a two-dimensional array, optimized to enhance light performance according to specific mathematical parameters. Furthermore, his patents on optical sheets and light-controlling members have improved the efficiency of light-exiting angles, showing a sophisticated arrangement of light transmissive portions and light absorbing elements.

Career Highlights: Throughout his career at Dai Nippon Printing Co., Ltd., Tsuyoshi Kashiwagi has established himself as a key figure in optical innovation. His work has not only advanced the field but has set new benchmarks for what is possible within display technologies. His dedication to research and development has earned him recognition among his peers and within the industry.

Collaborations: Kashiwagi's journey is marked by fruitful collaborations with fellow inventors, including Kazunobu Ogawa and Hideki Miyata. These partnerships have sparked innovative ideas and solutions that have further propelled optical technology forward. Working together, they have combined their expertise to create cutting-edge inventions that tackle complex challenges in the optical domain.

Conclusion: Tsuyoshi Kashiwagi's remarkable contributions to optical technology exemplify the spirit of innovation and creativity. His extensive patent portfolio reflects a commitment to pushing the boundaries of what is possible in electronic display systems. As the landscape of technology continues to evolve, the advancements led by inventors like Kashiwagi will play a pivotal role in shaping the future of optical applications.

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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