Tokyo, Japan

Kenji Ohgitani

This inventor holds 3 USPTO granted patents. Top assignee: Polymatech Co., Ltd.. Active years: 1998-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Ohgitani. Retrieved from https://idiyas.com/inventor/kenji-ohgitani

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


% Patents Active = 66.7

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 18(Granted Patents)


Location History:

  • Tokyo, JP (1998 - 2000)
  • Tamakawa-mura, JP (2006)

Company Filing History:


Years Active: 1998-2006

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3 patents (USPTO):Explore Patents

Title: **Kenji Ohgitani: Innovator in Key Input Device Technology**

Introduction

Kenji Ohgitani is a notable inventor based in Tokyo, Japan, recognized for his innovative contributions to key input devices. With a total of three patents to his name, Ohgitani has significantly advanced the functionality and design of input mechanisms used in various electronic devices. His work reflects a blend of technical expertise and a keen understanding of user experience.

Latest Patents

Among Kenji Ohgitani's latest patents are two noteworthy inventions that showcase his ingenuity. The first patent describes a **key input device** where the input key oscillates in relation to an opposing surface. This design emphasizes the normal operating point, ensuring that when the opposing surface is depressed, the input key tilts in the intended direction, facilitating effective input. The inclusion of guide protrusions arranged symmetrically ensures that even if the key is pressed at an erroneous angle, it still operates correctly by guiding its movement.

His second patent is for a **sheet-like key top and its manufacturing method**. This invention focuses on creating a spherical shape at the terminal end of a push-button switch, designed to interact with a curved metal belleville spring and a resin film dome. By positioning the gate injection mouth for the thermoplastic material on the side surface of the extruding part, this invention enhances the clicking touch and mitigates breakage caused by residual stress, significantly improving the durability of the switch.

Career Highlights

Ohgitani is currently employed at Polymatech Co., Ltd., where he continues to innovate and contribute to the field of input device technology. His work not only pushes the boundaries of design but also addresses practical challenges faced by users and manufacturers alike.

Collaborations

Throughout his career, Kenji Ohgitani has collaborated with talented coworkers such as Masaru Nakajo and Satoshi Kudo. These partnerships have fostered a creative environment, allowing for the exchange of ideas and enhancing the development process of their innovative projects.

Conclusion

In conclusion, Kenji Ohgitani stands out as a prominent inventor in the key input device technology space. Through his latest patents, he demonstrates an exceptional ability to merge creativity with functionality, paving the way for advancements that could redefine user interaction with electronic devices. His ongoing work at Polymatech Co., Ltd. continues to inspire innovation in the 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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