Shiga, Japan

Miya Nakayama

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Chemical Company, Limited. Active years: 2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Miya Nakayama. Retrieved from https://idiyas.com/inventor/miya-nakayama-legd1nga

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 = 5.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 2004

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1 patent (USPTO):Explore Patents

Title: Miya Nakayama: Inventor of a Color-Changing Indicator.

Introduction

Miya Nakayama is an inventor associated with Shiga, Japan, and Sumitomo Chemical Company, Limited. Her patent work includes an indicator designed to display information through changes in color tone.

Latest Patents

Nakayama is named on one patent, titled “Indicator.” The invention uses a porous resin material with liquid retained in its pores. It specifies that the resin’s whiteness is at least 80 and at least 20 points greater than the whiteness of the indicator. The indicator can display information, such as the passage of a period, through a change in color tone. Its design aims to maintain display properties and reduce variation in the periods shown.

Career Highlights

Nakayama’s recorded patent activity reflects work on indicator technology and the use of material properties to support clear, consistent visual displays. Her listed company affiliation is Sumitomo Chemical Company, Limited.

Collaborations

Tatsuhiro Nagamatsu and Tadashi Sakurai are identified as Nakayama’s coworkers.

Conclusion

Miya Nakayama’s patent on a porous-resin indicator highlights an approach to displaying information through color change while seeking reliable and consistent performance.

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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