Tokyo, Japan

Seiji Yanagisawa

This inventor holds 5 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 2004-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Yanagisawa. Retrieved from https://idiyas.com/inventor/seiji-yanagisawa

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


% Patents Active = 20.0

Average Co-Inventor Count = 8.0

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Narashino, JP (2006)
  • Tokyo, JP (2004 - 2007)
  • Chiba, JP (2007)

Company Filing History:


Years Active: 2004-2007

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5 patents (USPTO):Explore Patents

Title: Seiji Yanagisawa: Innovator in Energy Systems

Introduction

Seiji Yanagisawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of energy systems, particularly in air-conditioning technology. With a total of 5 patents, Yanagisawa continues to push the boundaries of innovation.

Latest Patents

One of his latest patents is an energy collecting system and method of operating the same. This invention focuses on an air-conditioning system where a primary side generates heat, incorporating a heat storage and a heat source. It produces cool or warm water using an inexpensive commercial power source, such as a nighttime power source. A system collaboration unit is strategically placed between a motor that drives a water pump and the power source. This unit is connected to the motor via a cable, and an output from the inverter is also connected to the motor through a cable.

Career Highlights

Seiji Yanagisawa is currently employed at Hitachi, Ltd., where he applies his expertise in developing innovative energy solutions. His work has garnered attention for its practicality and efficiency in energy consumption.

Collaborations

Throughout his career, Yanagisawa has collaborated with notable colleagues, including Yukihiro Fujita and Shinichi Takahashi. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

Seiji Yanagisawa stands out as a key figure in the realm of energy innovations. His patents reflect a commitment to improving energy efficiency and sustainability. His contributions continue to influence the industry and inspire future advancements.

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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