Kusatsu, Japan

Takashi Doi

This inventor holds 4 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignee: Daikin Industries, Ltd.. Active years: 2009-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Doi. Retrieved from https://idiyas.com/inventor/takashi-doi-x7hr867x

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

USPTO Granted Patents = 4 

% Patents Active = 75.0


Average Co-Inventor Count = 4.4

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 2009-2013

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4 patents (USPTO):Explore Patents

Title: Takashi Doi: Innovator in Heat Exchanger Technology

Introduction

Takashi Doi is a prominent inventor based in Kusatsu, Japan. He has made significant contributions to the field of heat exchanger technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and performance of air conditioning systems.

Latest Patents

Doi's latest patents include a heat exchanger, an air conditioning apparatus, and a method for manufacturing heat exchangers. The inventions aim to reduce the scattering of condensate water from curved portions to the downstream side in the direction of airflow. His innovative indoor heat exchanger features lower and upper fins, with the upper fins inclined at a specific angle to optimize airflow. Additionally, he has developed an indoor unit of an air conditioner that enhances design while maintaining air blowing performance.

Career Highlights

Doi is currently associated with Daikin Industries, Ltd., a leading company in the air conditioning industry. His work has been instrumental in advancing the technology used in modern air conditioning systems.

Collaborations

Throughout his career, Doi has collaborated with notable colleagues, including Tetsuya Yamashita and Tatsuhiko Akai. These collaborations have contributed to the development of innovative solutions in the field.

Conclusion

Takashi Doi's contributions to heat exchanger technology and air conditioning systems have made a significant impact in the industry. His innovative patents reflect his commitment to improving efficiency and performance in climate control solutions.

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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