Joetsu, Japan

Masaaki Kotake

This inventor holds 17 USPTO granted patents and 39 published patent applications and 15 EPO patents, primarily in Photoresist Chemistry. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 2017-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Kotake. Retrieved from https://idiyas.com/inventor/masaaki-kotake

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

Calculating rank
USPTO Granted Patents = 17 

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.4

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Jyoetsu, JP (2018)
  • Joetsu, JP (2017 - 2023)

Company Filing History:


Years Active: 2017-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Chemically Amplified Resist
Negative Resist Composition
Positive Resist Composition
Patterning Process
Photomask Blank
Conductive Polymer
Polymer Compound
Onium Salt
Sulfonium Compound
Monomer
Resist Pattern Formation
17 patents (USPTO):Explore Patents

Title: Masaaki Kotake: Innovator in Chemically Amplified Resist Technology

Introduction

Masaaki Kotake is a prominent inventor based in Joetsu, Japan. He has made significant contributions to the field of chemically amplified resist compositions, which are crucial in the semiconductor manufacturing process. With a total of 17 patents to his name, Kotake's work has had a substantial impact on the industry.

Latest Patents

Among his latest patents are several innovative technologies. One notable patent is for a chemically amplified resist composition that includes a polymer compound with specific repeating units. This composition aims to achieve favorable resolution, pattern profile, and line edge roughness while minimizing development-residue defects. Another significant patent involves a chemically amplified negative resist composition that demonstrates high resolution during pattern formation, resulting in patterns with minimal line edge roughness.

Career Highlights

Masaaki Kotake is currently employed at Shin-Etsu Chemical Co., Ltd., a leading company in the chemical industry. His work at Shin-Etsu has allowed him to develop advanced materials that enhance the performance of photomasks and resist patterns in semiconductor fabrication.

Collaborations

Throughout his career, Kotake has collaborated with notable colleagues, including Keiichi Masunaga and Satoshi Watanabe. These collaborations have fostered innovation and contributed to the advancement of resist technology.

Conclusion

Masaaki Kotake's contributions to chemically amplified resist technology have positioned him as a key figure in the semiconductor industry. His innovative patents and collaborations continue to influence the development of advanced materials in this critical field.

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]
Loading…