Hitachi, Japan

Sankichi Takahashi

This inventor holds 34 USPTO granted patents, primarily in Water Treatment Technologies. Top assignees: Hitachi, Ltd., Hitachi Plant Engineering Construction Co., Ltd., Babcock-Hitachi Kabushiki Kaisha. Active years: 1976-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sankichi Takahashi. Retrieved from https://idiyas.com/inventor/sankichi-takahashi

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.6

ph-index = 12

Forward Citations = 525(Granted Patents)


Location History:

  • Hitachi, JA (1976 - 1978)
  • Ibaraki, JP (1978 - 1986)
  • Hitachi, JP (1979 - 1992)

Company Filing History:


Years Active: 1976-1992

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Areas of Expertise:
Vapor Washing
Cooling Energy Generator
Ultra-Pure Water
Absorption-Type Refrigerator
Heat Storing Apparatus
Sewage Treatment
Electrodialysis
Filtration Method
Solid-Liquid Separation
Membrane Separation
Crystallization Process
Impurity Detection
34 patents (USPTO):Explore Patents

Title: **Sankichi Takahashi: Innovator and Patentee from Hitachi, Japan**

Introduction

Sankichi Takahashi is a prolific inventor from Hitachi, Japan, renowned for holding a remarkable 34 patents. His inventions reflect a keen insight into practical applications of technology, particularly in the fields of washing processes and cooling energy systems.

Latest Patents

Among his most recent innovations are two notable patents:

1. **Vapor Washing Process and Apparatus** - This innovative process separates vapor from accompanying mist by passing the vapor through a porous membrane. The condensed vapor is then brought into contact with the object requiring cleaning, effectively washing it.

2. **Cooling Energy Generator with Cooling Energy Accumulator** - This device comprises a refrigerant, absorbent liquid, and a specialized container. It features two chambers that manage the absorbent liquid and the refrigerant, enabling efficient cooling energy generation. Remarkably, it continues to function even when the refrigerant is not absorbed, providing consistent air cooling without the need for additional devices.

Career Highlights

Sankichi Takahashi has dedicated his career to innovative engineering, with significant contributions while working at Hitachi, Ltd. and Hitachi Plant Engineering & Construction Co., Ltd. His expertise in developing advanced technological solutions has propelled both companies forward in their respective industries.

Collaborations

Throughout his career, Takahashi has collaborated with esteemed professionals, including Katsuya Ebara and Yasuo Koseki. These partnerships have fostered a creative environment that enhances the development of cutting-edge technologies.

Conclusion

Sankichi Takahashi's contributions to the fields of washing processes and cooling energy systems illustrate his inventive spirit and commitment to innovation. As he continues to create and patent new technologies, his work not only benefits specific industries but also sets a foundation for 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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