Forward Citations = 99

Loading Chart...

6 inventors (with patents filed for the assignee):

Akira Yamamura (8 out of 13 patents)

Ryuhei Ishikawa (2 out of 3 patents)

Kimio Sato (1 out of 1 patent)

4. Shigaru Oki (1 out of 1 patent)

5. Tsutomu Osawa (1 out of 1 patent)

6. Isamu Takehara (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 5757097 - Dynamic pressure bearing device (1998-05-26),

2. 5394044 - Magnetic bearing device (1995-02-28),

3. 5372432 - Dynamic pressure bearing assembly (1994-12-13),

4. 5092740 - Composite vacuum pump (1992-03-03),

5. 5073737 - Magnetic bearing device (1991-12-17),

6. 5068558 - Magnetic bearing device (1991-11-26),

7. 5066879 - Single power source magnetic bearing device (1991-11-19),

8. 5052697 - Sealing member for ferrofluid seal and method of producing the same (1991-10-01),

9. 5046151 - Magnetic bearing device (1991-09-03),

10. 4955731 - Bearing equipment for vacuum devices (1990-09-11),

11. 4847526 - Variant-pole electric motor (1989-07-11),

Company Overview

Nippon Ferrofluidics Corporation, based in Tokyo, specializes in the development and manufacturing of ferrofluid technology. This innovative company focuses on creating advanced materials that leverage the unique properties of ferrofluids for various applications, including industrial, automotive, and medical sectors. Their research emphasizes enhancing fluid dynamics and magnetic properties, contributing to cutting-edge solutions in engineering and technology. With a commitment to innovation, Nippon Ferrofluidics plays a pivotal role in advancing the capabilities of ferrofluid applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

11 Patents

#1,808 in Tokyo

#4,139 in Japan

#51,801 in the World

Tokyo, Japan

Nippon Ferrofluidics Corporation

Forward Citations = 99

6 inventors:

Akira Yamamura (8 out of 13 patents)

Ryuhei Ishikawa (2 out of 3 patents)

Kimio Sato (1 out of 1 patent)

4. Shigaru Oki (1 out of 1 patent)

5. Tsutomu Osawa (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Ferrofluidics Corporation. Retrieved from https://idiyas.com/company/nippon-ferrofluidics

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

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]