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Sumitomo Metal Mining., Ltd.

USPTO Granted Patents = 29

EPO Patents = 18

Forward Citations = 0

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98 inventors (with patents filed for the assignee):

Takeshi Chonan (5 out of 31 patents)

Hirofumi Tsunematsu (4 out of 27 patents)

Shin-ichi Heguri (4 out of 18 patents)

4. Haruki Kaneda (3 out of 31 patents)

5. Yuki Koshika (3 out of 24 patents)

6. Satoshi Asano (3 out of 33 patents)

7. Tetsutaro Hayashi (2 out of 19 patents)

8. Shin-ya Matsumoto (2 out of 8 patents)

9. Yohei Kudo (2 out of 12 patents)

10. Masatoshi Takano (2 out of 13 patents)

11. Shinsuke Suganuma (2 out of 5 patents)

12. Daisuke Nagao (2 out of 4 patents)

13. Masao Wakabayashi (2 out of 8 patents)

14. Kazuhide Hayashi (2 out of 3 patents)

15. Kenji Adachi (2 out of 2 patents)

29 patents: Sort by Forward Citations

1. 12742077 - Surface-treated infrared-absorbing fine particles and method for producing the same, infrared-absorbing fine-particle dispersion liquid, and infrared-absorbing fine-particle dispersion body (2026-09-22),

2. 12735584 - Near-infrared curable ink composition, near-infrared cured film, method for producing near-infrared cured product (2026-09-15),

3. 12731786 - Lithium metal composite oxide, positive electrode active substance for lithium secondary battery, positive electrode for lithium secondary battery, lithium secondary battery, and method for producing lithium metal composite oxide (2026-09-08),

4. 12723290 - Method for treating sulfide (2026-09-01),

5. 12723165 - Anti-counterfeit ink composition, anti-counterfeit ink, and anti-counterfeit printed product (2026-09-01),

6. 12686754 - Infrared absorbing particles, infrared absorbing particle dispersion liquid, infrared absorbing particle dispersion material, infrared absorbing laminate transparent substrate, and infrared absorbing transparent substrate (2026-07-21),

7. 12686621 - Method for producing lithium metal composite oxide (2026-07-21),

8. 12679744 - Method for producing lithium metal composite oxide (2026-07-14),

9. D1133096 - Water purification device (2026-07-07),

10. 12676306 - Lithium metal composite oxide, positive electrode active material for lithium secondary batteries, positive electrode and lithium secondary battery (2026-07-07),

11. 12671087 - Lithium metal composite oxide, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery (2026-06-30),

12. 12662393 - Method for producing lithium metal composite oxide (2026-06-23),

13. 12662389 - Method for producing lithium-containing solution (2026-06-23),

14. 12637361 - Production method for cobalt sulfate (2026-05-26),

15. 12637359 - Surface-treated infrared-absorbing fine particles, surface-treated infrared-absorbing fine particle powder, infrared-absorbing fine particle dispersion liquid in which the surface-treated infrared-absorbing fine particles are used, infrared-absorbing fine particle dispersion, and infrared-absorbing substrate (2026-05-26),

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USPTO Data Jan 1 1976 - Sep 22 2026

29 Patents

#1,085 in Tokyo

#2,356 in Japan

#22,493 in the World

Sumitomo Metal Mining., Ltd.

Forward Citations = 0

98 inventors:

Takeshi Chonan (5 out of 31 patents)

Hirofumi Tsunematsu (4 out of 27 patents)

Shin-ichi Heguri (4 out of 18 patents)

4. Haruki Kaneda (3 out of 31 patents)

5. Yuki Koshika (3 out of 24 patents)

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