Fukushima, Japan

Kazutoshi Mizushima

This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignee: Shin-Etsu Handotai Co., Ltd.. Active years: 2004-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutoshi Mizushima. Retrieved from https://idiyas.com/inventor/kazutoshi-mizushima

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

USPTO Granted Patents = 4 

% Patents Active = 50.0

Average Co-Inventor Count = 2.1

ph-index = 2

Forward Citations = 93(Granted Patents)


Location History:

  • Fukushima, JP (2004 - 2005)
  • Nishigo-mura, JP (2023)

Company Filing History:


Years Active: 2004-2023

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4 patents (USPTO):Explore Patents

Title: Kazutoshi Mizushima: Innovator in Wafer Manufacturing Technology

Introduction

Kazutoshi Mizushima is a prominent inventor based in Fukushima, Japan. He has made significant contributions to the field of wafer manufacturing technology, holding a total of 4 patents. His innovative work has advanced the methods and apparatus used in the production of high-quality wafers.

Latest Patents

Mizushima's latest patents include a wire saw apparatus and a method for manufacturing wafers. This wire saw apparatus features a plurality of wire guides and a wire row that is designed to reciprocatively travel in an axial direction. It includes a nozzle for supplying coolant or slurry, a workpiece-holding portion for suspending a workpiece plate, and a workpiece-feeding mechanism that presses the workpiece against the wire row. This invention allows for the manufacturing of wafers with various warp shapes by controlling the warp in the wire traveling direction of the sliced workpiece.

Another notable patent is for an edge polished wafer, along with a polishing cloth, apparatus, and method for edge polishing. This innovation suppresses wafer peripheral sag and controls the over-polish width in edge polishing to 400 µm or less. The polishing cloth features a multi-layer structure, ensuring effective processing of the wafer.

Career Highlights

Kazutoshi Mizushima is currently employed at Shin-Etsu Handotai Co., Ltd., a leading company in the semiconductor industry. His work at this organization has been instrumental in developing advanced technologies for wafer production.

Collaborations

Mizushima has collaborated with notable coworkers, including Nakaji Miura and Yasuhiro Sekine. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Kazutoshi Mizushima's innovative contributions to wafer manufacturing technology have established him as a key figure in the industry. His patents reflect a commitment to advancing manufacturing processes and improving product quality.

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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