Kure, Japan

Yuji Fujikawa

This inventor holds 17 USPTO granted patents and 7 EPO patents, primarily in Precision Measurement. Top assignee: Mitutoyo Corporation. Active years: 2003-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Fujikawa. Retrieved from https://idiyas.com/inventor/yuji-fujikawa

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

Calculating rank

% Patents Active = 94.1

 

Average Co-Inventor Count = 2.8

ph-index = 4

Forward Citations = 1,442(Granted Patents)


Location History:

  • Higashihiroshima, JP (2003)
  • Kawasaki, JP (2005 - 2006)
  • Hiroshima, JP (2019)
  • Kure, JP (2008 - 2023)

Company Filing History:


Years Active: 2003-2023

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Areas of Expertise:
Digital Micrometer
Measurement Instrument
Displacement Measuring Device
Micrometer Head
Rotary Movement Mechanism
Comparator
Inside Diameter Tool
Small-Sized Measurement Device
17 patents (USPTO):Explore Patents

Title: The Innovations of Yuji Fujikawa

Introduction

Yuji Fujikawa is a prominent inventor based in Kure, Japan, known for his significant contributions to measurement technology. With a total of 17 patents to his name, Fujikawa has made remarkable advancements in the field of precision measurement devices.

Latest Patents

One of his latest inventions is a digital micrometer, which features a main-body frame, a spindle, a thimble part, and a displacement detector that accurately detects the spindle's displacement. The design includes a U-shaped frame part and a spindle holding part that allows for movement in an axial direction relative to the anvil. The materials used for both the main-body frame and the spindle are non-magnetic, enhancing the device's functionality. Another notable patent is a method for controlling a small-sized adjustable measuring force measurement device. This method enables the appropriate setting of the origin by utilizing a central control unit that changes operation modes in response to specific user actions.

Career Highlights

Fujikawa is currently employed at Mitutoyo Corporation, a leading company in precision measurement instruments. His work at Mitutoyo has allowed him to develop innovative solutions that enhance measurement accuracy and efficiency.

Collaborations

Throughout his career, Fujikawa has collaborated with notable colleagues, including Shuji Hayashida and Shuuji Hayashida. These collaborations have contributed to the advancement of measurement technologies and the development of new products.

Conclusion

Yuji Fujikawa's contributions to the field of measurement technology are significant and impactful. His innovative patents and work at Mitutoyo Corporation continue to shape the future of precision measurement devices.

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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