logo

For the Inventor, By the Inventor

Tokyo, Japan

Ferrotec Corporation

Calculating rank
USPTO Granted Patents = 24

% Expired Patents = 8.3



Trademarks = 2

Forward Citations = 133

Loading Chart...
Loading Chart...

27 inventors (with patents filed for the assignee):

goldMedal Shiro Tsuda (11 out of 13 patents)

silverMedal Yuichi Shiina (5 out of 5 patents)

bronzeMedal Yasutake Hirota (2 out of 2 patents)

4.  Takayuki Hachida (2 out of 2 patents)

5.  Lucian Borduz (2 out of 4 patents)

6.  Heiichi Unozawa (2 out of 3 patents)

7.  Stefan Borduz (2 out of 3 patents)

8.  Mayumi Takayama (2 out of 2 patents)

9.  Charles D Hoyt (2 out of 6 patents)

10.  Kenichi Katsuma (1 out of 1 patent)

11.  Masatake Hirooka (1 out of 1 patent)

12.  Keisuke Sagisaka (1 out of 1 patent)

13.  Yoshifumi Noguchi (1 out of 3 patents)

14.  Akira Yamamura (1 out of 13 patents)

15.  Iwao Watanabe (1 out of 1 patent)


24 patents:

1. 9627111 - Magnetic member and electronic component (2017-04-18),
2. 9448262 - Current sensor having at least one cancel coil (2016-09-20),
3. 9426875 - Method for producing plasma flow, method for plasma processing, apparatus for producing plasma, and apparatus for plasma processing (2016-08-23),
4. 8999122 - Insulator interposed type plasma processing apparatus (2015-04-07),
5. 8833299 - Divided annular rib type plasma processing apparatus (2014-09-16),
6. 8562800 - Plasma generating apparatus and plasma processing apparatus (2013-10-22),
7. 8007176 - Dynamic pressure bearing and rotation machine employing same (2011-08-30),
8. 7976612 - Droplet removing device and method in plasma generator (2011-07-12),
9. 7823537 - Plasma generator (2010-11-02),
10. 7729504 - Ferrofluid centered voice coil speaker (2010-06-01),
11. 7266214 - Audio speaker and method for assembling an audio speaker (2007-09-04),
12. 7248714 - Micro-speaker and method for assembling a micro-speaker (2007-07-24),
13. 7063802 - Composition and method of making an element-modified ferrofluid (2006-06-20),
14. 6868167 - Audio speaker and method for assembling an audio speaker (2005-03-15),
15. 6804368 - Micro-speaker and method for assembling a micro-speaker (2004-10-12),
Company Overview
Ferrotec Corporation is a leading provider of advanced materials and technologies, specializing in the development and manufacturing of high-performance products for various industries. The company focuses on areas such as semiconductor manufacturing, medical devices, and energy solutions, leveraging its expertise in materials science and engineering. With a strong presence in Tokyo, Ferrotec serves a global market, delivering innovative solutions that enhance productivity and efficiency across multiple sectors.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

Ferrotec Corporation USPTO Patent Assignee Logo
24 Patents

#1,215 in Tokyo

#2,636 in Japan

#26,701 in the World

Tokyo, JP
Tokyo, Japan

Ferrotec Corporation

Forward Citations = 133

27 inventors:

goldMedal Shiro Tsuda (11 out of 13 patents)

silverMedal Yuichi Shiina (5 out of 5 patents)

bronzeMedal Yasutake Hirota (2 out of 2 patents)

4.  Takayuki Hachida (2 out of 2 patents)

5.  Lucian Borduz (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ferrotec Corporation. Retrieved from https://idiyas.com/company/ferrotec

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]
Loading…