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Dowa IP Creation Co., Ltd.

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USPTO Granted Patents = 24

EPO Patents = 21

Forward Citations = 10

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26 inventors (with patents filed for the assignee):

Takeshi Kawauchi (14 out of 14 patents)

Shou Ogawa (3 out of 3 patents)

Takashi Fujiwara (3 out of 4 patents)

4. Shinya Sasaki (3 out of 63 patents)

5. Yohei Ishikawa (3 out of 3 patents)

6. Tomohide Iida (3 out of 3 patents)

7. Sho Ogawa (3 out of 3 patents)

8. Tomoya Yamada (3 out of 6 patents)

9. Yuto Kamai (2 out of 3 patents)

10. Haruka Seki (2 out of 2 patents)

11. Yukihiro Matsuda (2 out of 2 patents)

12. Ryusuke Nakao (2 out of 3 patents)

13. Kenji Kimura (1 out of 4 patents)

14. Yoshiaki Aiki (1 out of 8 patents)

15. Naohisa Okamoto (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 11556070 - Carrier core material and electrophotographic development carrier using same and electrophotographic developer (2023-01-17),

2. 10915034 - Carrier core material and electrophotographic carrier using same and electrophotographic developer (2021-02-09),

3. 10907257 - Projection material for mechanical plating and high corrosion-resistant coating (2021-02-02),

4. 10698330 - Carrier core material and electrophotographic development carrier using same and electrophotographic developer (2020-06-30),

5. 10185238 - Carrier core material (2019-01-22),

6. 10088764 - Carrier core material and electrophotographic development carrier using same and electrophotographic developer (2018-10-02),

7. 9964878 - Carrier core material and electrophotographic development carrier using same and electrophotographic developer (2018-05-08),

8. 9740129 - Ferrite particles, carrier for electrophotographic development using same, and developer for electrophotography (2017-08-22),

9. 9651886 - Carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer (2017-05-16),

10. 9507285 - Ferrite particles and electrophotographic development carrier using same, electrophotographic developer and method of manufacturing ferrite particles (2016-11-29),

11. 9429862 - Carrier for electrophotographic developer and electrophotographic developer (2016-08-30),

12. 9329514 - Carrier core particle for electrophotographic developer, method for manufacturing the same, carrier for electrophotographic developer and electrophotographic developer (2016-05-03),

13. 9274446 - Method for manufacturing carrier core particles for electrophotographic developer (2016-03-01),

14. 9268246 - Method for manufacturing carrier core particles for electrophotographic developer, carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer (2016-02-23),

15. 9195157 - Carrier core particles for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer (2015-11-24),

Company Overview

Dowa IP Creation Co., Ltd. is a Japanese company based in Okayama, specializing in intellectual property management and consulting services. The organization focuses on supporting innovation through the development and protection of intellectual assets, catering to a diverse range of industries. With a strong emphasis on research and technology, Dowa IP Creation aids clients in navigating complex patent landscapes, ensuring strategic alignment with their business objectives while fostering growth and competitiveness in the global market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

24 Patents

#10 in Okayama

#2,636 in Japan

#26,701 in the World

Dowa IP Creation Co., Ltd.

Forward Citations = 10

26 inventors:

Takeshi Kawauchi (14 out of 14 patents)

Shou Ogawa (3 out of 3 patents)

Takashi Fujiwara (3 out of 4 patents)

4. Shinya Sasaki (3 out of 63 patents)

5. Yohei Ishikawa (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dowa IP Creation Co., Ltd.. Retrieved from https://idiyas.com/company/dowa-ip-creation-company

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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