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Aichi Steel Works, Ltd.

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USPTO Granted Patents = 58

Forward Citations = 537

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114 inventors (with patents filed for the assignee):

Yoshinobu Honkura (26 out of 80 patents)

Kouji Murata (8 out of 8 patents)

Toru Matsuo (7 out of 7 patents)

4. Toshio Ozone (6 out of 7 patents)

5. Hironari Mitarai (5 out of 14 patents)

6. Hideki Fujii (5 out of 5 patents)

7. Yoshimichi Hasegawa (5 out of 5 patents)

8. Mamoru Kurimoto (5 out of 5 patents)

9. Ryohei Kobayashi (5 out of 5 patents)

10. Toshiro Yamamoto (5 out of 5 patents)

11. Chisato Mishima (4 out of 10 patents)

12. Osamu Furuta (4 out of 4 patents)

13. Eiki Kikuchi (3 out of 6 patents)

14. Kazuhiro Suzuki (3 out of 28 patents)

15. Kazuo Arai (3 out of 13 patents)

Core Competencies:

Magnetic Apparatus

Anisotropic Magnet

Dental Attachment

Stainless Steel

Bearing Steel

Hot Working

Corrosion Resistance

Spring Steel

Metal Forming

Rare Earth Magnet

Production Method

Steel Treatment

58 patents: Sort by Forward Citations

1. 6336064 - Magnetic apparatus for detecting position of vehicle (2002-01-01),

2. 6203325 - Dental magnetic attachment and its fixing method including spacer (2001-03-20),

3. 6132488 - Process of treating waste containing zinc oxide (2000-10-17),

4. 6113846 - Production apparatus for rare earth anisotropic magnet powders (2000-09-05),

5. 6083294 - Method of treating dust exhausted from melting furnace (2000-07-04),

6. 6056830 - Anisotropic magnet powders and their production method (2000-05-02),

7. 6007757 - Method of producing an anisotropic bonded magnet (1999-12-28),

8. 5931676 - Dental attachment (1999-08-03),

9. 5886070 - Production method for anisotropic resin-bonded magnets (1999-03-23),

10. 5871561 - Method of treating dusts containing oxides (1999-02-16),

11. 5851312 - Production method, production apparatus and heat treatment apparatus for (1998-12-22),

12. 5678998 - Dental magnetic attachment (1997-10-21),

13. 5645937 - Thin film layered member (1997-07-08),

14. 5643491 - Rare earth magnetic powder, its fabrication method, and resin bonded (1997-07-01),

15. 5493766 - Process for hot working continuous-cast bloom and steel ingot (1996-02-27),

Company Overview

Aichi Steel Works, Ltd. is a prominent manufacturer based in Tokai, Japan, specializing in advanced magnetic materials and related technologies. The company focuses on the development of high-performance magnetic apparatus, anisotropic magnets, and various steel products, including stainless, bearing, and spring steel. Aichi Steel is recognized for its expertise in hot working and corrosion resistance, catering to diverse industries such as automotive and dental applications, thereby contributing significantly to technological advancements in these fields.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

58 Patents

#2 in Tokai

#1,574 in Japan

#12,415 in the World

Aichi Steel Works, Ltd.

Forward Citations = 537

114 inventors:

Yoshinobu Honkura (26 out of 80 patents)

Kouji Murata (8 out of 8 patents)

Toru Matsuo (7 out of 7 patents)

4. Toshio Ozone (6 out of 7 patents)

5. Hironari Mitarai (5 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Aichi Steel Works, Ltd.. Retrieved from https://idiyas.com/company/aichi-steel-works

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]

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