Fukushima, Japan

Masaaki Kageyama

This inventor holds 5 USPTO granted patents. Top assignee: Alps Electric Co., Ltd.. Active years: 1991-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Kageyama. Retrieved from https://idiyas.com/inventor/masaaki-kageyama

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 = 2.9

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Iwaki, JP (1991)
  • Fukushima-ken, JP (1997 - 2003)

Company Filing History:


Years Active: 1991-2003

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5 patents (USPTO):Explore Patents

Title: The Innovative Mind of Masaaki Kageyama

Introduction

Masaaki Kageyama is a notable inventor based in Fukushima-ken, Japan. With a remarkable portfolio of five patents to his name, Kageyama has significantly contributed to the field of key switch technology. His innovative designs and methods have enhanced user experience in keyboard input devices.

Latest Patents

Among his latest patents is a groundbreaking invention involving a key switch disposed on a keyboard input device. This invention features a pair of lever members that form a cross-link member, molded from resin materials with different shrinkage coefficients. A shaft-receiving hole is created in one lever while a linking shaft is formed on the other. This innovative design simplifies the assembly process by eliminating the need for manual linking between the lever members, enabling efficient size reduction and facilitating ease of assembly.

Another notable patent is a key switch with an easily attachable key top. This design includes an actuator for rotatably engaging one of the lever members and allows for the simple attachment of the key top through press fitting. This innovation not only streamlines the molding die for the key top but also simplifies the attachment process, enhancing user convenience.

Career Highlights

Masaaki Kageyama is currently employed at Alps Electric Co., Ltd., a renowned company recognized for its advancements in electronic components. His work continues to be influential in the realm of input devices, showcasing his commitment to innovation and quality.

Collaborations

Collaboration plays a crucial role in Kageyama's career. He has worked alongside esteemed colleagues such as Tsuyoshi Narusawa and Hideki Ito. Together, they have contributed to the development of advanced technologies that push the boundaries of keyboard input design.

Conclusion

Masaaki Kageyama exemplifies the spirit of innovation and creativity. His contributions to key switch technology and collaboration with other professionals reflect his dedication to improving everyday technology. As he continues to develop new inventions, Kageyama remains a significant figure in the world of patents and innovation.

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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