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Dowa Metals & Mining Co., Ltd.

USPTO Granted Patents = 14

CIPO Patents = 10

EPO Patents = 10

Forward Citations = 15

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45 inventors (with patents filed for the assignee):

Tetsuo Fujita (7 out of 8 patents)

Yusuke Sato (4 out of 5 patents)

Hironobu Mikami (4 out of 5 patents)

4. Masami Oouchi (4 out of 5 patents)

5. Masayoshi Matsumoto (4 out of 8 patents)

6. Mitsuo Abumiya (4 out of 4 patents)

7. Minoru Kawasaki (3 out of 18 patents)

8. Yuzuru Nakamura (3 out of 3 patents)

9. Katsunori Yamaguchi (2 out of 2 patents)

10. Ryoichi Taguchi (2 out of 2 patents)

11. Masahiko Ogino (2 out of 2 patents)

12. Nobuaki Kita (2 out of 2 patents)

13. Nobuyasu Ezawa (2 out of 14 patents)

14. Hiroshi Inoue (2 out of 73 patents)

15. Koji Yamada (2 out of 31 patents)

14 patents: Sort by Forward Citations

1. 11866802 - Method for recovering platinum group metals (2024-01-09),

2. 9175365 - Method of recovering PGM (2015-11-03),

3. 9115418 - Method of recovering platinum group elements (2015-08-25),

4. 8465723 - Arsenic-containing solid and method for producing it (2013-06-18),

5. 8388927 - Scorodite-type iron-arsenic compound particles, production method thereof, and arsenic-containing solid (2013-03-05),

6. 8366991 - Apparatus for recovering platinum group elements (2013-02-05),

7. 8110162 - Method of processing copper arsenic compound (2012-02-07),

8. 8097228 - Method of processing diarsenic trioxide (2012-01-17),

9. 8092765 - Method of processing non-ferrous smelting intermediates containing arsenic (2012-01-10),

10. 8092764 - Method of processing non-ferrous smelting intermediate containing arsenic (2012-01-10),

11. 8075868 - Iron arsenate powder (2011-12-13),

12. 7815706 - Method and apparatus for recovering platinum group elements (2010-10-19),

13. 7695698 - Method of producing iron-arsenic compound excellent in crystallinity (2010-04-13),

14. 7604786 - Method for recovering indium from indium-containing material (2009-10-20),

DOWA Metals & Mining Co., Ltd. is a Japan-based company engaged in the production and sale of nonferrous metals, electronic materials, metal processing products, and chemicals. With a focus on sustainability, DOWA aims to contribute to a recycling-oriented society and the conservation of natural resources. The company operates globally, providing high-quality products and services in various industries such as automotive, electronics, and environmental solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

14 Patents

#1,395 in Tokyo

#3,483 in Japan

#40,857 in the World

Dowa Metals & Mining Co., Ltd.

Forward Citations = 15

45 inventors:

Tetsuo Fujita (7 out of 8 patents)

Yusuke Sato (4 out of 5 patents)

Hironobu Mikami (4 out of 5 patents)

4. Masami Oouchi (4 out of 5 patents)

5. Masayoshi Matsumoto (4 out of 8 patents)

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