Tokyo, Japan

Takumi Nishiyama

This inventor holds 16 USPTO granted patents and 6 published patent applications and 28 EPO patents. Top assignees: Mitsubishi Electric Corporation, Asahi Glass Company, Limited. Active years: 2018-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takumi Nishiyama. Retrieved from https://idiyas.com/inventor/takumi-nishiyama

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

USPTO Granted Patents = 16 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.7

ph-index = 3

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 2018-2025

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16 patents (USPTO):Explore Patents

Title: Takumi Nishiyama: Innovator in Refrigeration Technology

Introduction

Takumi Nishiyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 16 patents. His innovative designs focus on improving the efficiency and functionality of refrigeration systems.

Latest Patents

One of Nishiyama's latest patents is a refrigeration cycle device that includes a refrigerant circuit circulating a mixed refrigerant containing CF3I and HFO1123. This device features a compressor, an expansion valve, an indoor heat exchanger, an outdoor heat exchanger, and a refrigerant reservoir. The design incorporates an injection pipe with a first end positioned at a height within the refrigerant reservoir, ensuring optimal performance. Another notable patent is a refrigeration cycle device with a wiring switch part that adjusts between different wiring states. This device enhances the efficiency of the compressor by optimizing the motor's power generation based on the rotor's rotational speed.

Career Highlights

Nishiyama has worked with leading companies in the industry, including Mitsubishi Electric Corporation and Asahi Glass Company, Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in refrigeration technology.

Collaborations

Throughout his career, Nishiyama has collaborated with talented individuals such as Akira Ishibashi and Shinya Higashiiue. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Takumi Nishiyama is a key figure in the field of refrigeration technology, with a strong portfolio of patents that reflect his innovative spirit. His work continues to influence the industry and improve refrigeration systems worldwide.

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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