Yokkaichi, Japan

Koji Kasai

This inventor holds 26 USPTO granted patents, primarily in Electrical Junction Boxes. Top assignees: Sumitomo Wiring Systems, Limited, Other. Active years: 1997-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Kasai. Retrieved from https://idiyas.com/inventor/koji-kasai

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


% Patents Active = 65.4

Average Co-Inventor Count = 1.3

ph-index = 8

Forward Citations = 234(Granted Patents)


Location History:

  • Kokkaichi, JP (2003)
  • Yokkaichi, JP (1997 - 2009)
  • Mie, JP (2002 - 2010)

Company Filing History:


Years Active: 1997-2010

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Areas of Expertise:
Electrical Junction Box
Printed Circuit Board
Bus Bars
Fuse Housings
Waterproof Cover
Electrical Connector
Wire Connection
Harness Cover
Manufacturing Method
Connection Structure
Vehicle Applications
Electrical Joint Connector
26 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Koji Kasai

Introduction: Koji Kasai, an accomplished inventor based in Yokkaichi, Japan, has made significant strides in the field of electrical engineering. With a remarkable portfolio of 26 patents, Kasai's work focuses on improving printed circuit boards and electric junction boxes, contributing to advancements in various electrical applications.

Latest Patents: Among his latest innovations, Kasai has developed a method of forming a printed circuit board with a connector. This method involves providing a base portion with through holes for terminals, fitting these components together, and soldering them to ensure a reliable and efficient connection. Additionally, he has designed a printed circuit board that features fuse housings specifically for use in electric junction boxes in vehicles. This design includes multiple parallel tiers of fuse housings, enhancing functionality and safety in automotive applications.

Career Highlights: Throughout his career, Koji Kasai has been associated with reputable companies such as Sumitomo Wiring Systems, Limited. His contributions have not only advanced the technology in his field but also established him as a prominent figure among inventors focused on electrical components.

Collaborations: Kasai has worked alongside notable colleagues such as Nobuchika Kobayashi and Yuuji Saka. These collaborations have likely fostered the exchange of ideas and innovations, further driving advancements in their respective projects.

Conclusion: With 26 patents to his name, Koji Kasai has made noteworthy contributions to the world of electrical engineering, particularly in the realm of printed circuit boards and junction boxes. His innovative spirit and collaborations with other experts highlight the importance of teamwork in the pursuit of technological advancement. As he continues to innovate, the impact of his work will undoubtedly be felt in various applications, especially within the automotive industry.

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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