Tokyo, Japan

Susumu Tsujikawa

This inventor holds 7 USPTO granted patents and 1 published patent application. Top assignees: Nec Corporation, Cyber Laser Inc.. Active years: 1991-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Susumu Tsujikawa. Retrieved from https://idiyas.com/inventor/susumu-tsujikawa-d1d0qplv

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

USPTO Granted Patents = 7 

% Patents Active = 85.7

Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 180(Granted Patents)


Company Filing History:


Years Active: 1991-2012

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Susumu Tsujikawa

Introduction

Susumu Tsujikawa is a prominent inventor based in Tokyo, Japan, recognized for his significant contributions to the field of technology and innovation. With a total of seven patents to his name, Tsujikawa has developed cutting-edge methods and devices that have enhanced the capabilities of display technology and substrate manufacturing.

Latest Patents

Among Tsujikawa’s latest patents are noteworthy advancements that illustrate his inventive prowess. One of his patents focuses on a "Substrate manufacturing method including protrusion removing step," which provides a method for removing and modifying protrusions on a color filter by using a short pulse laser. This innovative technique involves the scanning of a transparent substrate with a laser beam that effectively targets and modifies protrusions formed on the color filters.

Another significant patent is for a "Projection type color liquid crystal display apparatus capable of enhancing optical utilization efficiency." This invention introduces a polarization conversion section that transforms luminous flux from a light source into a unified direction. The color separation section selectively reflects color components at varying angles, allowing convex lenses of a microlens array to direct these components into different pixels of a liquid crystal element, thereby optimizing display performance.

Career Highlights

Throughout his career, Susumu Tsujikawa has contributed to leading companies in the technology sector, including NEC Corporation and Cyber Laser Inc. His work has not only advanced his own career but has also pushed the boundaries of what is possible in display technologies and manufacturing processes.

Collaborations

In his journey as an inventor, Tsujikawa has collaborated with esteemed professionals such as Masao Imai and Fujio Okumura. Their combined expertise has facilitated the development of remarkable technologies and innovations that are at the forefront of the industry.

Conclusion

Susumu Tsujikawa’s inventive spirit and dedication to technological advancement are evident in his numerous patents and collaborations. His contributions to the fields of display technology and substrate manufacturing continue to inspire future innovations in Japan and beyond. As technology evolves, the impact of his work will undoubtedly resonate across various applications and industries for years to come.

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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