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Sanyo Special Steel Co., Ltd.

USPTO Granted Patents = 68

EPO Patents = 10

Trademarks = 4

Forward Citations = 195

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107 inventors (with patents filed for the assignee):

Toshiyuki Sawada (31 out of 31 patents)

Akihiko Yanagitani (8 out of 8 patents)

Shingo Fukumoto (7 out of 7 patents)

4. Hiroyuki Hasegawa (6 out of 6 patents)

5. Tetsuji Kuse (5 out of 5 patents)

6. Kodai Miura (5 out of 5 patents)

7. Norimasa Tsunekage (4 out of 5 patents)

8. Fumihiro Maezawa (4 out of 4 patents)

9. Hiroki Ikeda (4 out of 4 patents)

10. Ryoji Hayashi (4 out of 4 patents)

11. Noriaki Matsubara (3 out of 3 patents)

12. Yuichi Nagatomi (3 out of 3 patents)

13. Katsu Yanagimoto (3 out of 3 patents)

14. Yoshikazu Aikawa (3 out of 3 patents)

15. Kazuhiro Kobayashi (3 out of 3 patents)

Core Competencies:

Flame Retardant Powder

Magnetic Member

Cu-Based Alloy Powder

Soft Magnetic Flaky Powder

Sputtering Target Material

Ni-Cr Based Alloy

Wear-Resistant Iron-Based Alloy

High-Hardness Atomized Powder

Si-Based Alloy Anode Material

Lead-Free Jointing Material

Electronic Apparatus

High-Reliability Steel

68 patents: Sort by Forward Citations

1. 12359130 - Flame retardant powder for magnetic member, and polymer composition (2025-07-15),

2. 12173389 - Alloy powder for magnetic member (2024-12-24),

3. 11987870 - Cu-based alloy powder (2024-05-21),

4. 11976344 - Cu-based alloy powder (2024-05-07),

5. 11920226 - Powder for magnetic member (2024-03-05),

6. 11781204 - Powder for mold (2023-10-10),

7. 11555227 - Ni—Cr based alloy brazing material containing trace amount of V (2023-01-17),

8. 11430588 - Soft magnetic flaky powder (2022-08-30),

9. 11377726 - Sputtering target material (2022-07-05),

10. 11276516 - Magnetic powder for high-frequency applications and magnetic resin composition containing same (2022-03-15),

11. 11273490 - Fe-based metal powder for molding (2022-03-15),

12. 11081267 - Flat powder for high frequency applications and magnetic sheet (2021-08-03),

13. 10872716 - Soft magnetic flaky powder and method for producing the same (2020-12-22),

14. 10844476 - Sputtering target material (2020-11-24),

15. 10804014 - Flat soft magnetic powder and production method therefor (2020-10-13),

Sanyo Special Steel Co., Ltd. is a Japanese company engaged in the production and distribution of special steel products. With its head office located in Osaka, Japan, the company offers a wide range of high-quality special steel materials used in various industries including automotive, machinery, aerospace, energy, and more. Sanyo Special Steel is committed to delivering reliable and innovative solutions, contributing to the advancement of industries worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

68 Patents

#2 in Himeji

#1,400 in Japan

#10,596 in the World

Sanyo Special Steel Co., Ltd.

Forward Citations = 195

107 inventors:

Toshiyuki Sawada (31 out of 31 patents)

Akihiko Yanagitani (8 out of 8 patents)

Shingo Fukumoto (7 out of 7 patents)

4. Hiroyuki Hasegawa (6 out of 6 patents)

5. Tetsuji Kuse (5 out of 5 patents)

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