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Mitsubishi Metal Corporation

USPTO Granted Patents = 68

Trademarks = 1

Forward Citations = 938

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155 inventors (with patents filed for the assignee):

Takuo Takeshita (11 out of 33 patents)

Tadashi Sugihara (9 out of 11 patents)

Osamu Tsujimura (6 out of 20 patents)

4. Tatsuo Arai (5 out of 54 patents)

5. Hironori Yoshimura (4 out of 22 patents)

6. Yukihiro Ohuchi (4 out of 4 patents)

7. Niro Odani (4 out of 11 patents)

8. Masayuki Okawa (4 out of 27 patents)

9. Yoshirou Kuromitsu (3 out of 37 patents)

10. Masaaki Nakayama (3 out of 38 patents)

11. Hideaki Yoshida (3 out of 30 patents)

12. Akira Sano (3 out of 38 patents)

13. Kensho Sahira (3 out of 20 patents)

14. Motohiko Yoshizumi (3 out of 13 patents)

15. Takeshi Sakurai (2 out of 15 patents)

Core Competencies:

High Temperature Oxide Superconductor

Rare Earth Permanent Magnet Powder

Boring Bar Tool

N-Type Oxide Superconductor

Ceramic Substrate

Precipitation Hardening Nickel Base Alloy

Sputtering Target

Diamond-Coated Tool

Cermet Blade Member

Thermoelectric Element

Hydrogen Absorbing Ni-Based Alloy

Single-Crystal Wafer

68 patents: Sort by Forward Citations

1. 5468724 - High temperature oxide superconductor (1995-11-21),

2. 5338371 - Rare earth permanent magnet powder, method for producing same and bonded (1994-08-16),

3. 5261767 - Boring bar tool (1993-11-16),

4. 5244871 - N-type oxide superconductor represented by the formula (Nd.sub.x (1993-09-14),

5. 5226404 - Cutting apparatus (1993-07-13),

6. 5209216 - Chain cutter (1993-05-11),

7. 5204059 - Ni base alloy for spark plug electrodes of internal combustion engines (1993-04-20),

8. 5156503 - Boring bar tool (1992-10-20),

9. 5130498 - Ceramic substrate used for fabricating electric or electronic circuit (1992-07-14),

10. 5122206 - Precipitation hardening nickel base single crystal cast alloy (1992-06-16),

11. 5110543 - Cement blade member for cutting-tools and process for producing same (1992-05-05),

12. 5106821 - Process for forming thin oxide film (1992-04-21),

13. 5096768 - Substrate used for fabrication of thick film circuit (1992-03-17),

14. 5087509 - Substrate used for fabrication of thick film circuit (1992-02-11),

15. 5085515 - Method and apparatus for inspecting quality of manufactured articles (1992-02-04),

Mitsubishi Metal Corporation is a global company specializing in the production and distribution of advanced metal products. With a rich history spanning decades, our expertise lies in manufacturing high-quality metal components and materials across various industries. We pride ourselves on innovation, sustainability, and maintaining strong customer relationships. Our commitment to research and development ensures we deliver cutting-edge solutions to meet the evolving needs of our clients.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

68 Patents

#588 in Tokyo

#1,390 in Japan

#10,446 in the World

Mitsubishi Metal Corporation

Forward Citations = 938

155 inventors:

Takuo Takeshita (11 out of 33 patents)

Tadashi Sugihara (9 out of 11 patents)

Osamu Tsujimura (6 out of 20 patents)

4. Tatsuo Arai (5 out of 54 patents)

5. Hironori Yoshimura (4 out of 22 patents)

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