Hitachi, Japan

Chiaki Yamagishi

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignees: Hitachi Chemical Company, Ltd., Hitachi, Ltd.. Active years: 1991-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chiaki Yamagishi. Retrieved from https://idiyas.com/inventor/chiaki-yamagishi

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 100.0

Average Co-Inventor Count = 6.8

ph-index = 5

Forward Citations = 92(Granted Patents)


Company Filing History:


Years Active: 1991-2013

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6 patents (USPTO):Explore Patents

Title: **The Innovative Contributions of Chiaki Yamagishi in Semiconductor Technology**

Introduction

Chiaki Yamagishi, based in Hitachi, Japan, is a distinguished inventor with a noteworthy portfolio of six patents. Her contributions primarily focus on chemical mechanical planarization (CMP) technology, which is critical in the semiconductor industry for producing high-quality electronic components.

Latest Patents

Chiaki's recent patents include innovations such as a CMP abrasive slurry for polishing insulation films, a polishing method, and a semiconductor electronic part polished through this advanced method. Her inventions provide efficient and high-speed polishing solutions for insulation films like SiO film and SiOC film, essential for flattening interlayer insulation and other integral components within semiconductor manufacturing. This CMP abrasive slurry incorporates cerium oxide particles, a dispersant, and a special water-soluble polymer with amino groups, enhancing the polishing process and enabling quicker results while maintaining high precision.

Career Highlights

Chiaki has made significant strides as an inventor while working with reputable companies such as Hitachi Chemical Company, Ltd. and Hitachi, Ltd. Her innovative approaches in CMP techniques have garnered attention in the technology sector, paving the way for advancements in semiconductor fabrication.

Collaborations

Throughout her career, she has collaborated closely with notable colleagues, including Masato Fukasawa and Naoyuki Koyama. These partnerships have not only enhanced her inventions but also contributed to the broader knowledge and practices within the semiconductor community, making her contributions even more impactful.

Conclusion

Chiaki Yamagishi is a remarkable inventor whose dedication and innovative spirit have significantly influenced the semiconductor industry. Her patents demonstrate her expertise and commitment to advancing technology, particularly in the realm of polishing methods crucial for developing state-of-the-art electronic components. With her continued efforts, the future of semiconductor technology looks promising.

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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