Tokyo, Japan

Tadahito Fujisawa

This inventor holds 38 USPTO granted patents and 4 published patent applications, primarily in Semiconductor Manufacturing. Top assignees: Kabushiki Kaisha Toshiba, Nikon Corporation, Shin-Etsu Handotai Co., Ltd.. Active years: 1997-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadahito Fujisawa. Retrieved from https://idiyas.com/inventor/tadahito-fujisawa

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

USPTO Granted Patents = 38 

% Patents Active = 42.1

Average Co-Inventor Count = 3.7

ph-index = 13

Forward Citations = 610(Granted Patents)


Location History:

  • Tokyo, JP (1997 - 2010)
  • Yokkaichi, JP (2008 - 2010)
  • Mie, JP (2013)

Company Filing History:


Years Active: 1997-2013

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Areas of Expertise:
Exposure Method
Photomask
Reticle Design
Semiconductor Device
Pattern Layout
Wafer Evaluation
Mask Manufacturing
Quality Assurance
Calibration Method
Temperature Adjustment
Focus Monitoring
Data Generation
38 patents (USPTO):Explore Patents

Tadahito Fujisawa: A Pioneering Mind in Semiconductor Innovation

Introduction

Tadahito Fujisawa is an accomplished inventor based in Tokyo, Japan, renowned for his contributions to the field of semiconductor technology. With a remarkable portfolio of 38 patents, Fujisawa has significantly advanced the capabilities and efficiency of semiconductor devices through his innovative solutions.

Latest Patents

Some of his most recent patents include an exposure control apparatus that optimizes exposure settings based on the height information of a substrate. This apparatus features an exposure setting unit that makes determinations on whether to expose a shot based on its position and a dedicated exposure instructing unit that manages exposure instructions accordingly. Additionally, Fujisawa's inventions encompass manufacturing methods for semiconductor devices and reticle sets. One key patent involves a reticle set comprising a first photomask with a circuit pattern and a second photomask designed to enhance precision in semiconductor manufacturing processes.

Career Highlights

Fujisawa's career includes significant roles at notable companies, most prominently at Toshiba Corporation and Shin-Etsu Handotai Co., Ltd. His work has had a profound impact on the semiconductor industry, making him a respected figure among his peers.

Collaborations

Throughout his career, Fujisawa has collaborated with several distinguished colleagues, including Soichi Inoue and Masafumi Asano. These collaborations have led to groundbreaking advancements in semiconductor technology and have strengthened Fujisawa’s reputation as a leading inventor in his field.

Conclusion

Tadahito Fujisawa exemplifies innovation in semiconductor technology through his extensive patent portfolio and collaboration with industry leaders. His inventions continue to influence the landscape of semiconductor manufacturing, ensuring that he remains a pivotal figure in this critical area of technology development.

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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