Tokyo, Japan

Takeshi Fujihisa

This inventor holds 1 USPTO granted patent. Top assignees: Epson Corporation, Zexel Gmbh. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Fujihisa. Retrieved from https://idiyas.com/inventor/takeshi-fujihisa

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 = 6.0

ph-index = 1

Forward Citations = 16(Granted Patents)


Company Filing History:


Years Active: 1996

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1 patent (USPTO):Explore Patents

Title: **Innovator Takeshi Fujihisa: A Pioneer in Compressor Technology**

Introduction

Takeshi Fujihisa, based in Tokyo, Japan, is an accomplished inventor recognized for his innovative contributions to compressor technology. With a keen focus on enhancing the efficiency and reliability of refrigeration systems, he has developed a patent that stands out in the field.

Latest Patents

Takeshi Fujihisa holds a notable patent for a "Compressor Start-up Controller." This invention comprises a compressing section designed to efficiently compress a refrigerant, along with a motor connected to this section that enables rotation. The patent details a drive circuit that powers the motor, a rotation detecting device to ensure proper motor function, and a control unit that regulates motor operation. The unique aspect of this controller is its ability to initiate the motor in a step mode, allowing for a gradual increase or decrease in commutating current during start-up, thereby ensuring smoother operation and reducing electrical spikes.

Career Highlights

Fujihisa has accumulated valuable experience throughout his career, having worked for prominent companies such as Zexel GmbH and Epson Corporation. His roles in these organizations have allowed him to refine his expertise and play a significant part in developing cutting-edge technology in the industry.

Collaborations

Throughout his career, Takeshi has collaborated with notable colleagues, including Nobukazu Takagi and Kiyohiro Harada. These collaborations have fostered an environment of creativity and innovation, contributing to the advancements in compressor technology that they have collectively achieved.

Conclusion

Takeshi Fujihisa's innovation in compressor technology has made a significant impact on the efficiency and reliability of refrigeration systems. With his foundation of experience gained from reputable companies and valuable collaborations, he continues to inspire future inventors in the field. His patent not only showcases his ingenuity but also reinforces the importance of innovation in driving advancements in technology.

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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