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Sumitomo Special Metal Co. Ltd.

USPTO Granted Patents = 26

Forward Citations = 526

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48 inventors (with patents filed for the assignee):

Toshiaki Wada (5 out of 27 patents)

Akio Murata (3 out of 3 patents)

Akio Nakanishi (3 out of 6 patents)

4. Kenta Konishi (3 out of 3 patents)

5. Hideya Sakurai (3 out of 8 patents)

6. Toshinobu Miyamoto (3 out of 4 patents)

7. Takashi Kobayashi (2 out of 26 patents)

8. Sachio Toyota (2 out of 11 patents)

9. Keisuke Kageyama (2 out of 3 patents)

10. Kenji Hirano (2 out of 4 patents)

11. Nahoko Sugahara (2 out of 2 patents)

12. Yasuyuki Nakamura (2 out of 6 patents)

13. Shin Nemoto (2 out of 3 patents)

14. Hirofumi Takabayashi (2 out of 2 patents)

15. Makoto Minakata (2 out of 2 patents)

26 patents: Sort by Forward Citations

1. 6221270 - Process for producing compound for rare earth metal resin-bonded magnet (2001-04-24),

2. 5355017 - Lead frame having a die pad with metal foil layers attached to the (1994-10-11),

3. 5234150 - Method of manufacturing spotwise partial clad material (1993-08-10),

4. 5225953 - Magnetic thin film head of a single magnetic pole for perpendicular (1993-07-06),

5. 5218333 - Magnetic field generating device for use with ESR device (1993-06-08),

6. 5204628 - Electron spin resonance system (1993-04-20),

7. 5142232 - Electron spin resonance system (1992-08-25),

8. 5106433 - Heat-conductive composite material (1992-04-21),

9. 5097240 - Magnetic field generating device for ESR system (1992-03-17),

10. 5061412 - Process for producing a magnet of strontium ferrite having high (1991-10-29),

11. 5032304 - Method of manufacturing transparent high density ceramic material (1991-07-16),

12. 5028495 - Composite foil brazing material and method of using (1991-07-02),

13. 5023219 - Dielectric ceramic composition for electronic devices (1991-06-11),

14. 4960739 - Method for producing a material for use in a microwave dielectric (1990-10-02),

15. 4953051 - Composite magnetic head (1990-08-28),

Sumitomo Special Metal Co. Ltd. is a leading manufacturer of special metal products in Japan. With a focus on quality and innovation, the company offers a wide range of products including high-performance alloys, stainless steel, and titanium products. With a commitment to sustainability and customer satisfaction, Sumitomo Special Metal Co. Ltd. continues to be a trusted partner in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

26 Patents

#239 in Osaka

#2,456 in Japan

#24,104 in the World

Sumitomo Special Metal Co. Ltd.

Forward Citations = 526

48 inventors:

Toshiaki Wada (5 out of 27 patents)

Akio Murata (3 out of 3 patents)

Akio Nakanishi (3 out of 6 patents)

4. Kenta Konishi (3 out of 3 patents)

5. Hideya Sakurai (3 out of 8 patents)

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