Matsumoto, Japan

Keiichi Mukaiyama

This inventor holds 15 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Seiko Epson Corporation. Active years: 1997-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Mukaiyama. Retrieved from https://idiyas.com/inventor/keiichi-mukaiyama

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

USPTO Granted Patents = 15 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 9

Forward Citations = 228(Granted Patents)


Location History:

  • Suwa, JP (1997 - 2002)
  • Nagano, JP (1999 - 2017)
  • Matsumoto, JP (2000 - 2022)

Company Filing History:


Years Active: 1997-2022

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15 patents (USPTO):Explore Patents

Title: **Keiichi Mukaiyama: Innovator in Timepiece Technology**

Introduction

Keiichi Mukaiyama is a prominent inventor based in Matsumoto, Japan, known for his significant contributions to the field of electronic timepieces. With a remarkable portfolio consisting of 15 patents, Mukaiyama has made substantial advancements that enhance the functionality and user experience of timekeeping devices.

Latest Patents

Among his latest inventions, Mukaiyama has developed a patent for an **Electronic Timepiece**. This innovative device features an exterior case housing an electronic module, a winding stem, and a unique conductive earth member that enhances the interaction between the module and the stem. This design ensures that the winding stem is efficiently integrated into the electronic module while maintaining optimal performance.

Another notable patent from Mukaiyama is a **Timepiece** that improves the ease of unwinding a spring. This innovative timepiece incorporates a bridge, pawl lever, and a release mechanism, all designed to enhance the mechanical interactions within the watch, allowing for a smoother operation and improved longevity of the device.

Career Highlights

Mukaiyama is currently affiliated with Seiko Epson Corporation, a leader in the development of advanced electronics and timepieces. His work at Seiko Epson highlights his commitment to innovation in timepiece technology.

Collaborations

Throughout his career, Mukaiyama has collaborated with esteemed colleagues such as Masahiro Fujii and Hiroyuki Maruyama. These partnerships have played a crucial role in the development of his patents and innovations, fostering a collaborative environment that encourages creative advancements in the field.

Conclusion

Keiichi Mukaiyama stands out as a dedicated inventor whose contributions continue to shape the landscape of electronic timepieces. His innovative designs and collaborative efforts reflect a commitment to enhancing the functionality and user experience in timekeeping technology. As he continues to develop new inventions, Mukaiyama's impact on the industry remains significant and inspiring.

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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