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For the Inventor, By the Inventor

Fukuoka, Japan

Katsufusa Fujita

This inventor holds 8 USPTO granted patents and 2 EPO patents. Top assignee: Mitsui High-Tec Incorporated. Active years: 1987-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsufusa Fujita. Retrieved from https://idiyas.com/inventor/katsufusa-fujita

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

Calculating rank
USPTO Granted Patents = 8

% Patents Active = 25.0


Average Co-Inventor Count = 1.1

ph-index = 4

Forward Citations = 68(Granted Patents)


Location History:

  • Kitakyushu, JP (1987 - 1990)
  • Fukuoka, JP (2005 - 2012)

Company Filing History:

goldMedal8 out of 193 
 
Mitsui High-Tec Incorporated
 patents

Years Active: 1987-2012

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8 patents (USPTO):Explore Patents
1. 8205322 - Method of manufacturing laminated core (2012-06-26),
2. 8048509 - Laminated core and method of producing laminated core (2011-11-01),
3. 7698803 - Method of manufacturing laminated core (2010-04-20),
4. 7352101 - Skew shape variable laminated iron core and method of manufacturing the same (2008-04-01),
5. 7103961 - Production method of amorphous laminate core and amorphous laminate core (2006-09-12),
6. 6936915 - Lead frame having chip mounting part and leads of different thicknesses (2005-08-30),
7. 4912546 - Lead frame and method of fabricating a semiconductor device (1990-03-27),
8. 4704187 - Method of forming a lead frame (1987-11-03),

Title: Innovations by Katsufusa Fujita

Introduction

Katsufusa Fujita is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of manufacturing, particularly in the development of laminated cores. With a total of 8 patents to his name, Fujita's work has had a substantial impact on the industry.

Latest Patents

Fujita's latest patents include a method of manufacturing a laminated stator core. This method involves several intricate steps, such as forming a band-shaped yoke core sub-piece and creating an outer laminated yoke body through a spiral winding process. Additionally, he has developed a method for producing laminated cores, which utilizes thin sheets of magnetic material subjected to a pressing process. This innovative approach allows for the efficient production of laminated cores by unifying upper and lower laminated core pieces through caulking projections.

Career Highlights

Fujita has dedicated his career to advancing manufacturing techniques, particularly in the area of laminated cores. His expertise and innovative methods have positioned him as a key figure in the industry. Working at Mitsui High-tec Incorporated, he has been able to apply his knowledge and skills to develop cutting-edge technologies that enhance production efficiency.

Collaborations

Throughout his career, Fujita has collaborated with notable individuals, including his coworker Yoshiaki Mitsui. These collaborations have fostered an environment of innovation and

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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