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Forward Citations = 98

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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),

Nippon Ferrofluidics Corporation is a leading manufacturer and distributor of ferrofluid products. With over 30 years of experience in the industry, they specialize in providing high-quality ferrofluids for a wide range of applications, including electronics, medical devices, and scientific research. Their innovative products are known for their superior performance and reliability, making them a trusted partner for customers around the world.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

11 Patents

#1,591 in Tokyo

#4,039 in Japan

#50,159 in the World

Tokyo, Japan

Nippon Ferrofluidics Corporation