Chiba, Japan

Ujihiro Nishiike

This inventor holds 10 USPTO granted patents. Top assignees: Kawasaki Steel Corporation, Ihi Corporation, Jfe Steel Corporation. Active years: 1987-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ujihiro Nishiike. Retrieved from https://idiyas.com/inventor/ujihiro-nishiike

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


% Patents Active = 90.0

Average Co-Inventor Count = 5.4

ph-index = 4

Forward Citations = 31(Granted Patents)


Location History:

  • Chiba, JP (1987 - 1994)
  • Tokyo, JP (1997 - 2014)
  • Tokushima, JP (2014)

Company Filing History:


Years Active: 1987-2014

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10 patents (USPTO):Explore Patents

Title: Ujihiro Nishiike: Innovator in Thermoelectric Semiconductor Technology

Introduction

Ujihiro Nishiike is a prominent inventor based in Chiba, Japan, known for his significant contributions to thermoelectric semiconductor technology. With a total of 10 patents to his name, Nishiike has made remarkable advancements in the field, particularly in the development of materials and methods that enhance thermoelectric performance.

Latest Patents

Nishiike's latest patents include innovations such as thermoelectric semiconductor material, thermoelectric semiconductor elements using this material, and thermoelectric modules that utilize these elements. His patented manufacturing method involves preparing a metal mixture with an excess amount of tellurium (Te) added to a bismuth-antimony (Bi-Sb) based composition. After melting this mixture, the molten metal is solidified on a cooling roll, ensuring a thickness of no less than 30 micrometers. This process results in plate-shaped raw thermoelectric semiconductor materials, where tellurium-rich phases are microscopically dispersed within complex compound semiconductor phases. The crystalline orientation is improved, leading to an increased thermoelectric figure-of-merit.

Career Highlights

Throughout his career, Nishiike has worked with notable companies, including Kawasaki Steel Corporation and IHI Corporation. His experience in these organizations has allowed him to refine his expertise in thermoelectric materials and their applications.

Collaborations

Nishiike has collaborated with esteemed colleagues such as Michiro Komatsubara and Yoshiaki Iida, contributing to the advancement of thermoelectric technologies through shared knowledge and innovative ideas.

Conclusion

Ujihiro Nishiike's work in thermoelectric semiconductor technology showcases his dedication to innovation and excellence. His patents and career achievements reflect his significant impact on the field, paving the way for future advancements in thermoelectric materials and applications.

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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