Shimotsuga, Japan

Kazutaka Watanabe

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazutaka Watanabe. Retrieved from https://idiyas.com/inventor/kazutaka-watanabe-ygfe9zzy

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 = 3.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Kazutaka Watanabe: Innovator in Sealed Compressor Technology

Introduction

Kazutaka Watanabe is a notable inventor based in Shimotsuga, Japan. He has made significant contributions to the field of refrigeration technology, particularly through his innovative designs in sealed compressors. His work has been instrumental in addressing critical challenges in the efficiency of refrigerating cycles.

Latest Patents

Watanabe holds a patent for a sealed compressor driven by a motor. This invention aims to resolve the issue of decreasing heat exchange rates in refrigerating cycles, which is often caused by a large amount of refrigerator oil being delivered from the discharge pipe. The patented design features a compressor unit and a motor unit, with a ring provided at the outer periphery of the coil end of the stator on the side of the compressor unit. This design reduces the amount of refrigerator oil delivered to the refrigerating cycle. Additionally, the shape of the balance weight of the rotor on the side of the compressor unit is formed in a cylindrical shape, with a portion of the side face opened and an end face flat, which helps to minimize fluid stirring.

Career Highlights

Kazutaka Watanabe is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to focus on developing advanced solutions in refrigeration technology. With a total of 1 patent, Watanabe has demonstrated his commitment to enhancing the efficiency and effectiveness of refrigeration systems.

Collaborations

Watanabe has collaborated with notable colleagues, including Yoshihiro Sasaki and Koichi Sekiguchi. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Kazutaka Watanabe's contributions to sealed compressor technology highlight his innovative spirit and dedication to improving refrigeration systems. His patent reflects a significant step forward in addressing challenges within the industry.

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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