Saitama, Japan

Kinji Kuroiwa

This inventor holds 1 USPTO granted patent. Top assignee: Shin-Etsu Polymer Co., Ltd.. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kinji Kuroiwa. Retrieved from https://idiyas.com/inventor/kinji-kuroiwa

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 35(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Kinji Kuroiwa: Innovator in Push Button Switch Technology

Introduction

Kinji Kuroiwa is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of push button switch technology. His innovative approach has led to the development of a unique method that enhances user experience and manufacturing efficiency.

Latest Patents

Kuroiwa holds a patent for a method for forming a pad character in a push button switch and a method for manufacturing a cover member for the switch. This invention allows for comfortable manual operation of the switch over extended periods while preventing wear on the indication section. The method simplifies the manufacturing process of the cover member, making it more efficient. The key innovation involves coating pigment particles with a volatilization layer made from resin blended with electromagnetic wave absorbing powder. This creates a laser-sensitive color developing agent that is added to a thermosetting resin or elastomer material. The resulting composition is used to form key tops, which are then treated with a laser beam to create character-like or figure-like indications.

Career Highlights

Kuroiwa is associated with Shin-Etsu Polymer Co., Ltd., where he has been able to apply his inventive skills. His work has not only advanced the technology of push button switches but has also contributed to the overall efficiency of manufacturing processes in the industry.

Collaborations

Kuroiwa has collaborated with notable coworkers such as Mikio Kiyosawa and Sadao Nakano. Their combined expertise has further enhanced the development of innovative solutions in their field.

Conclusion

Kinji Kuroiwa's contributions to push button switch technology exemplify the impact of innovation on user experience and manufacturing efficiency. His patented methods represent a significant advancement in the industry, showcasing the importance of inventive thinking in modern technology.

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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