Hino, Japan

Katumi Itoyama

This inventor holds 2 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1985-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katumi Itoyama. Retrieved from https://idiyas.com/inventor/katumi-itoyama

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1985-1990

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2 patents (USPTO):Explore Patents

Title: Katumi Itoyama: Innovator in Electronic Apparatus Design

Introduction

Katumi Itoyama is a notable inventor based in Hino, Japan. He has made significant contributions to the field of electronic apparatus design, holding a total of 2 patents. His innovative work focuses on enhancing user interaction with electronic devices through improved switch mechanisms.

Latest Patents

One of his latest patents is a light emitting push button switch for an electronic apparatus. This invention features a button block that moves in response to a pushing force, allowing the switch to alternate between ON and OFF states. It includes a switching detector and a light source, such as a light emitting diode, which illuminates the button block when activated. The design incorporates a transparency block that reflects light, making it visible from various angles.

Another significant patent is a manual operating device for a slide type electrical device. This device is designed to be mounted inside the housing of an electrical apparatus. It includes a manual operating slide with an operating plate that moves back and forth through a slide slot. The design ensures smooth operation and effective connection to the actuating slide of the electrical device.

Career Highlights

Throughout his career, Katumi Itoyama has worked with prominent companies such as Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His experience in these organizations has contributed to his expertise in electronic design and innovation.

Collaborations

Katumi has collaborated with notable colleagues, including Hiroshi Ochiai and Yoshio Fujinami. Their teamwork has likely fostered a creative environment that encourages innovative solutions in electronic apparatus design.

Conclusion

Katumi Itoyama's contributions to the field of electronic apparatus design are marked by his innovative patents and collaborative efforts. His work continues to influence the way users interact with electronic devices, showcasing the importance of thoughtful design in 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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