Aichi, Japan

Katsuhiro Fujita

This inventor holds 25 USPTO granted patents and 6 EPO patents, primarily in Scroll Compressor Technology. Top assignees: Mitsubishi Heavy Industries Limited, Mitsubishi Heavy Industries Thermal Systems, Ltd., Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.. Active years: 2003-2024.

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

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


% Patents Active = 100.0


Average Co-Inventor Count = 4.9

ph-index = 3

Forward Citations = 34(Granted Patents)


Location History:

  • Nishi-kasugai-gun, JP (2003 - 2005)
  • Aichi-ken, JP (2011)
  • Kiyosu, JP (2009 - 2020)
  • Tokyo, JP (2020 - 2022)
  • Aichi, JP (2011 - 2024)

Company Filing History:


Years Active: 2003-2024

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Areas of Expertise:
Scroll Compressor
Sealing Structure
Fluid Machine
Eccentric Crankshaft
Performance Optimization
Airtight Container
Tip Seals
Gas Leakage Prevention
Manufacturing Method
Step Portions
Thrustplate Prevention
Height Variation
25 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Katsuhiro Fujita

Introduction: Katsuhiro Fujita, an accomplished inventor based in Aichi, Japan, has made significant strides in the field of mechanical engineering, particularly in the development of scroll compressors. With an impressive portfolio of 25 patents, Fujita’s contributions have greatly enhanced the efficiency and functionality of compressor technology.

Latest Patents: Among his most recent inventions is a revolutionary scroll compressor that combines a fixed scroll with an orbiting scroll featuring stepped portions and a surface hardening treatment. This innovative design includes a discharge port that facilitates the effective release of fluid compressed by the scrolls. Notably, the end plate of the orbiting scroll has been designed with a stepped portion to optimize the height differences, enhancing operational efficiency. Another recent patent focuses on the integrated lubricating oil passages in both the fixed and orbiting scrolls, ensuring improved lubrication and operational longevity for the scroll compressor.

Career Highlights: Fujita has gained substantial experience working with prominent companies such as Mitsubishi Heavy Industries Limited and Mitsubishi Heavy Industries Thermal Systems, Ltd. His work in these organizations has allowed him to innovate and refine technologies crucial to modern compressor systems.

Collaborations: Throughout his career, Katsuhiro Fujita has collaborated with notable colleagues, including Makoto Takeuchi and Takayuki Kuwahara. These collaborations have enriched his inventions and expanded the impact of his work within the industry.

Conclusion: Katsuhiro Fujita’s dedication to innovation in scroll compressor technology exemplifies the spirit of invention. His extensive patent portfolio and collaborative efforts showcase his commitment to pushing the boundaries of mechanical engineering, making him a key figure in the evolution of compressor systems. As the demand for efficient technologies continues to grow, Fujita’s contributions will undoubtedly leave a lasting legacy 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]
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