Hitachinaka, Japan

Fumihiro Sasajima

This inventor holds 28 USPTO granted patents and 6 published patent applications, primarily in Charged Particle Beam Technology. Top assignees: Hitachi-High-Technologies Corporation, Hitachi, Ltd., Hitachi High-Tech Corporation. Active years: 2003-2026.

USPTO Granted Patents = 28 

% Patents Active = 82.1

Average Co-Inventor Count = 3.4

ph-index = 4

Forward Citations = 75(Granted Patents)


Location History:

  • Hitachinaka, JP (2003 - 2016)
  • Tokyo, JP (2015 - 2024)

Company Filing History:


Years Active: 2003-2026

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Areas of Expertise:
Error Cause Estimation
Diagnostic System
Charged Particle Beam
Scanning Electron Microscope
Pattern Determination
Image Processing
Microstructured Pattern Inspection
Edge Detection
Pattern Matching
Pattern Measuring
Charged Particle Radiation
28 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Fumihiro Sasajima

Introduction: Fumihiro Sasajima, based in Hitachinaka, Japan, is a prominent inventor known for his remarkable contributions to the field of error detection and estimation. Holding 27 patents, Sasajima has focused on developing advanced technologies that enhance diagnostic systems and improve operational efficiency.

Latest Patents: Among his latest innovations are the "Error Factor Estimation Device" and "Error Factor Estimation Method." The error cause estimation device features a data pre-processing unit that generates training data suitable for input into a machine learning model. It also includes a model tree generation unit, which creates error detection models for identifying various types of errors even without prior annotations of error causes. This innovative approach provides an efficient training model for detecting errors across a range of scenarios. Another significant advancement is the proposed diagnostic system that accurately identifies the cause of errors, even when multiple factors or compound factors may be involved. This system incorporates a learning device that associates operational recipes, log data, and specimen characteristics with error types to enhance error cause estimations.

Career Highlights: Fumihiro Sasajima has made significant strides in his career by working with renowned companies, including Hitachi High-Technologies Corporation and Hitachi, Ltd. His expertise in the field has led to groundbreaking advancements in diagnostic technologies and error detection methods.

Collaborations: Throughout his career, Sasajima has collaborated with esteemed professionals such as Osamu Komuro and Fumio Mizuno, contributing to a rich exchange of ideas that has propelled innovation in their respective fields.

Conclusion: Fumihiro Sasajima's contributions to innovation and technology reflect his dedication to improving error detection and diagnostic systems. With 27 patents to his name and ongoing advancements in his research, he continues to be a vital figure in driving progress within the technology sector.

Profile summary based on public USPTO records.
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