Tokyo, Japan

Kazuo Niikura

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1987-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Niikura. Retrieved from https://idiyas.com/inventor/kazuo-niikura

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

Calculating rank

% Patents Active = 66.7

Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 42(Granted Patents)


Location History:

  • Hitachi, JP (1987 - 1999)
  • Tokyo, JP (2004)

Company Filing History:


Years Active: 1987-2004

Loading Chart...
3 patents (USPTO):Explore Patents

Title: Kazuo Niikura: Innovator in Water Machinery Technology

Introduction

Kazuo Niikura is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of water machinery, particularly in the development of reversible pump-turbines and advanced runner technologies. With a total of 3 patents to his name, Niikura's work has the potential to revolutionize energy generation and water management.

Latest Patents

One of Niikura's latest patents is a method of converting storage pumps into reversible pump-turbines. This innovative approach allows an existing water-lifting pump to function not only as a pump but also as a turbine capable of generating electric power. By modifying or replacing the pump runner and adjusting the water passages, a pumping station can be transformed into an urgent power plant during electric power shortages. This conversion offers an economically viable solution for enhancing energy efficiency.

Another notable patent involves the design of a water machinery runner that boasts high reliability and exceptional wear and corrosion resistance. This runner is engineered to operate effectively even in conditions where sediment is present in the fluid. The innovative design includes a crown, band, and blade, all coated with advanced surface films containing metals such as nickel, chromium, and cobalt, along with tungsten carbide. This technology ensures durability and performance in challenging environments.

Career Highlights

Kazuo Niikura is associated with Hitachi, Ltd., a leading company in technology and engineering. His work at Hitachi has allowed him to focus on innovative solutions in water machinery, contributing to the company's reputation for excellence in engineering.

Collaborations

Niikura has collaborated with notable colleagues, including Katsumasa Shinmei and Ryoji Okada. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Kazuo Niikura's contributions to water machinery technology exemplify the spirit of innovation. His patents not only enhance the functionality of existing systems but also pave the way for sustainable energy solutions. His work continues to inspire advancements in the field, making a significant impact on both industry and society.

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]
Loading…