Kanagawa, Japan

Kazuaki Tsuji

This inventor holds 27 USPTO granted patents and 5 published patent applications and 8 EPO patents, primarily in Electrochromic Technology. Top assignees: Ricoh Company, Ltd., Valqua, Ltd.. Active years: 2015-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuaki Tsuji. Retrieved from https://idiyas.com/inventor/kazuaki-tsuji

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

USPTO Granted Patents = 27 

% Patents Active = 70.4

 

Average Co-Inventor Count = 3.6

ph-index = 8

Forward Citations = 195(Granted Patents)


Location History:

  • Kanagawa, JP (2015 - 2022)
  • Tokyo, JP (2019 - 2024)

Company Filing History:


Years Active: 2015-2025

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Areas of Expertise:
Electrochromic Element
Display Device
Electrochromic Compound
Dimming Element
Manufacturing Method
Seal Member
Semiconductor Production
Electrochromic Composition
Electrochromic Dimming Device
Image Display Device
Intermediate Display Electrode
Information System
27 patents (USPTO):Explore Patents

Title: Kazuaki Tsuji: Innovator in Electrochromic Technology

Introduction

Kazuaki Tsuji, based in Kanagawa, Japan, is a prominent inventor known for his significant contributions to electrochromic technology. With an impressive portfolio of 18 patents, Tsuji continues to drive innovations in the field, particularly in electrochromic elements and display devices.

Latest Patents

Among his latest patents, Tsuji has developed an electrochromic element and a method for its manufacturing. This electrochromic element features a first substrate, first and second electrodes, and two electrochemical reaction layers. One layer is in a reversibly oxidizable state while the other is in a reversibly reducible state. The design ensures that at least one of these layers operates as an electrochromic layer, adhering to specific oxidation-reduction potential requirements.

In addition to this, Tsuji has also designed an electrochromic display device that includes a pair of supporting substrates, electrodes, and an electrochromic display layer that exhibits various colors through laminated electrochromic layers. These advancements are crucial for applications in smart windows and display technologies.

Career Highlights

Kazuaki Tsuji works at Ricoh Company, Ltd., a leading technology company recognized for its innovations in imaging and electronics. His role within the company highlights his commitment to advancing electrochromic technology, underlining his stature as a noteworthy inventor.

Collaborations

Throughout his career, Tsuji has collaborated with talented individuals like Tohru Yashiro and Shigenobu Hirano. These partnerships contribute to the collective expertise and innovation that enhances the development of cutting-edge technologies.

Conclusion

Kazuaki Tsuji's work in electrochromic technologies reflects a blend of creativity and technical knowledge, making him a valuable asset in the innovative landscape of Japan. His contributions not only advance the technological frontier but also pave the way for new applications that can enhance everyday life.

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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