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Dowa Electronics Materials., Ltd.

USPTO Granted Patents = 13

EPO Patents = 2

Forward Citations = 3

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29 inventors (with patents filed for the assignee):

Yasuto Miyamoto (3 out of 4 patents)

Masahiro Yoshida (2 out of 75 patents)

Shinya Sasaki (2 out of 63 patents)

4. Kaori Tokusada (2 out of 2 patents)

5. Hidefumi Fujita (2 out of 2 patents)

6. Takashi Fujimoto (1 out of 33 patents)

7. Kazuhiro Yamaga (1 out of 3 patents)

8. Koji Tanoue (1 out of 12 patents)

9. Toshio Tada (1 out of 29 patents)

10. Kazuki Muraishi (1 out of 7 patents)

11. Yuki Ishigaki (1 out of 5 patents)

12. Yuto Kamai (1 out of 3 patents)

13. Koji Hirata (1 out of 268 patents)

14. Yuki Kaneshiro (1 out of 6 patents)

15. Tomoya Yamada (1 out of 6 patents)

13 patents: Sort by Forward Citations

1. 12754491 - Carrier core material and electrophotographic development carrier using same and electrophotographic developer (2026-10-06),

2. 12753089 - Dispersed iron oxide magnetic powder slurry and method for producing same (2026-10-06),

3. 12741313 - Cuboid silver powder, method of producing same, and conductive paste (2026-09-22),

4. 12718974 - Magnetic powder for magnetic recording medium, and production method thereof (2026-08-25),

5. 12698213 - Powder including niobium complex and lithium and production method thereof, and production method of lithium secondary battery positive electrode active material having coated layer containing lithium niobate (2026-08-04),

6. 12693608 - Carrier core material, and electrophotographic development carrier and electrophotographic developer using same (2026-07-28),

7. 12683049 - Iron-based oxide magnetic powder and method for producing same (2026-07-14),

8. 12646635 - Silver powder and method for producing same (2026-06-02),

9. 12635290 - Light-emitting element and method of manufacturing the same (2026-05-19),

10. 12633541 - Lithium-containing oxide precursor solution for coating electrode active material, and method for producing the same (2026-05-19),

11. 12617013 - Silver powder and method of producing same (2026-05-05),

12. 12528122 - Method of producing silver powder, silver powder, and conductive paste (2026-01-20),

13. 7534283 - Method of producing copper powder and copper powder (2009-05-19),

Company Overview

Dowa Electronics Materials, Ltd. is a prominent player in the field of advanced materials, specializing in the development and manufacturing of high-performance electronic materials. The company focuses on innovative solutions for various applications, including semiconductors, displays, and other electronic components. Headquartered in Tokyo, Japan, Dowa Electronics is committed to research and development, driving advancements in technology to meet the evolving needs of the electronics industry while maintaining a strong emphasis on sustainability and quality.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

13 Patents

#1,660 in Tokyo

#3,749 in Japan

#45,039 in the World

Dowa Electronics Materials., Ltd.

Forward Citations = 3

29 inventors:

Yasuto Miyamoto (3 out of 4 patents)

Masahiro Yoshida (2 out of 75 patents)

Shinya Sasaki (2 out of 63 patents)

4. Kaori Tokusada (2 out of 2 patents)

5. Hidefumi Fujita (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dowa Electronics Materials., Ltd.. Retrieved from https://idiyas.com/company/dowa-electronics-materials

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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