Itami, Japan

Kouichirou Tsutahara

This inventor holds 9 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Ryoden Semiconductor System Engineering Corporation. Active years: 1991-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouichirou Tsutahara. Retrieved from https://idiyas.com/inventor/kouichirou-tsutahara

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


% Patents Active = 88.9

Average Co-Inventor Count = 3.8

ph-index = 6

Forward Citations = 191(Granted Patents)


Location History:

  • Itami City, JP (1991)
  • Itami, JP (1991 - 1999)
  • Tokyo, JP (2003)

Company Filing History:


Years Active: 1991-2003

Loading Chart...
9 patents (USPTO):Explore Patents

Title: Kouichirou Tsutahara: Innovator in Semiconductor Processing

Introduction

Kouichirou Tsutahara is a prominent inventor based in Itami, Japan, known for his significant contributions to the field of semiconductor processing. With a total of nine patents to his name, Tsutahara has made remarkable advancements that enhance the efficiency and effectiveness of semiconductor manufacturing.

Latest Patents

One of Tsutahara's latest patents is a polishing agent for processing semiconductors, which aims to control coagulation and sedimentation while providing stable and reproducible polishing properties. This invention includes a compound with a glucose structure, polishing particles, and water, ensuring optimal performance under proper dispersing conditions. Another notable patent involves a semiconductor producing apparatus and a wafer vacuum chucking device. This invention addresses the challenge of maintaining a secure grip on wafers, even when dust particles are present. The design features multiple block grooves on the surface of the vacuum chuck, each equipped with vacuum evacuation paths, allowing for reliable wafer suction and retention.

Career Highlights

Throughout his career, Kouichirou Tsutahara has worked with esteemed companies such as Mitsubishi Electric Corporation and Ryoden Semiconductor System Engineering Corporation. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Tsutahara has collaborated with notable colleagues, including Tooru Yamaguchi and Takayuki Suenaga, further enriching his work in the semiconductor field.

Conclusion

Kouichirou Tsutahara's innovative contributions to semiconductor processing have established him as a key figure in the industry. His patents reflect a commitment to improving manufacturing processes and addressing challenges in the 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…