Isesaki, Japan

Hiroshi Takagi

This inventor holds 2 USPTO granted patents. Top assignees: Sanyo Electric Co., Ltd., Tokyo Sanyo Electric Co.. Active years: 1986-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Takagi. Retrieved from https://idiyas.com/inventor/hiroshi-takagi-eu147r8l

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.8

ph-index = 2

Forward Citations = 54(Granted Patents)


Location History:

  • Isezaki, JP (1986)
  • Isesaki, JP (1994)

Company Filing History:


Years Active: 1986-1994

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2 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hiroshi Takagi

Introduction

Hiroshi Takagi, an accomplished inventor based in Isesaki, Japan, has made significant contributions to the field of electric motor compressors. With a total of two patents to his name, his inventions reflect a dedication to advancing technology in refrigeration and compressor efficiency.

Latest Patents

Hiroshi Takagi's latest innovations include a hermetically sealed electric motor compressor that features a unique design with a hermetically sealed casing and a reciprocating compressor unit. This unit is capable of compressing a working fluid and incorporates a valve assembly with intricate mechanisms to optimize performance. The patent outlines a discharge port equipped with a muffler comprising multiple resonance chambers, demonstrating an innovative approach to noise reduction while enhancing the efficiency of the discharge process. Additionally, he designed a hermetically sealed motor compressor suited for compact refrigeration machines, which includes a silencer that minimizes heat transfer and maximizes volumetric efficiency, showcasing his focus on practical applications in refrigeration technology.

Career Highlights

Throughout his career, Takagi has worked with prominent companies such as Sanyo Electric Co., Ltd. and Tokyo Sanyo Electric Co.. His experiences with these organizations provided him with the platform to explore and innovate within the field of electric motor compressors.

Collaborations

In the pursuit of his groundbreaking inventions, Takagi has collaborated with notable colleagues, including Yutaka Hirano and Hirokazu Kawakami. These partnerships have likely contributed valuable insights and shared expertise, fostering an environment conducive to innovation.

Conclusion

Hiroshi Takagi's inventive spirit and dedication to enhancing compressor technologies mark him as a significant figure within the industry. His patents not only reflect a deep understanding of engineering principles but also address practical challenges in refrigeration, highlighting the importance of continuous innovation in this essential 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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