Chiryu, Japan

Takeshi Sakai

This inventor holds 20 USPTO granted patents, primarily in Compressor Technology. Top assignees: Denso Corporation, Nippondenso Co., Ltd., Nippon Soken, Inc.. Active years: 1994-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Sakai. Retrieved from https://idiyas.com/inventor/takeshi-sakai-cf7j6txe

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 = 3.5

ph-index = 10

Forward Citations = 394(Granted Patents)


Location History:

  • Chiryu, JP (1994 - 2006)
  • Nagoya, JP (2015)

Company Filing History:


Years Active: 1994-2015

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Areas of Expertise:
Scroll Compressor
Ejector Device
Hybrid Compressor
Refrigerant Cycle
Thrust Bearing
Throttle Control
Electric Motor
Swash Plate
CO2 Compressor
Variable Discharge
Gas-Injection
Slip Control
20 patents (USPTO):Explore Patents

Title: The Innovative Mind of Takeshi Sakai: Pioneering Semiconductor and Ejector Cycle Technologies

Introduction: Takeshi Sakai, a prolific inventor based in Chiryu, Japan, holds an impressive portfolio of 20 patents. Renowned for his contributions to semiconductor devices and ejector cycle technologies, Sakai has made significant strides in the fields of electronics and mechanical engineering, showcasing his ingenuity and expertise.

Latest Patents: Among his latest inventions, Sakai has developed a groundbreaking semiconductor device featuring a lateral element. This device consists of a semiconductor substrate with first and second electrodes and a resistive field plate that enhances current flow between the electrodes. Notably, the voltage applied to the second electrode is calibrated to be lower than that applied to the first electrode, optimizing performance. Additionally, Sakai has designed an ejector cycle device that effectively separates refrigerants into gas-phase and liquid-phase components while also distinguishing refrigeration oil for optimal compatibility. This innovation is expected to improve energy efficiency in refrigeration applications.

Career Highlights: Sakai's career includes notable tenures at esteemed companies such as Denso Corporation and Nippondenso Co., Ltd. His work at these organizations has enabled him to translate theoretical concepts into practical applications, significantly enhancing the efficiency and effectiveness of various technologies.

Collaborations: Throughout his career, Takeshi has collaborated with esteemed colleagues, including Mikio Matsuda and Masafumi Nakashima. Together, they have contributed to cutting-edge research and development initiatives, resulting in numerous patents that push the boundaries of current technological capabilities.

Conclusion: Takeshi Sakai exemplifies the spirit of innovation within the fields of semiconductor technology and refrigeration solutions. With a robust patent portfolio and collaborative partnerships, he continues to drive advancements that promise to benefit various industries. His work serves as an inspiration to aspiring inventors and engineers worldwide, reinforcing the importance of creativity and determination in the pursuit of technological excellence.

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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