For the Inventor, By the Inventor

Enter assignee name

Kawatetsu Mining Co., Ltd.

USPTO Granted Patents = 23

% Expired Patents = 13.0

CIPO Patents = 2

Trademarks = 1

Forward Citations = 156

Loading Chart...

Loading Chart...

32 inventors (with patents filed for the assignee):

Hidefumi Konnai (6 out of 15 patents)

Kan Saito (4 out of 6 patents)

Yoshio Aso (4 out of 6 patents)

4. Yuuki Narita (3 out of 4 patents)

5. Yoshihito Tachi (3 out of 4 patents)

6. Hideshi Katayama (3 out of 4 patents)

7. Shuetsu Ogasawara (3 out of 4 patents)

8. Nobuyuki Sato (2 out of 80 patents)

9. Yoshiaki Hamano (2 out of 3 patents)

10. Morishige Uchida (2 out of 4 patents)

11. Kensuke Matsuki (2 out of 7 patents)

12. Yasutaka Fukuda (2 out of 6 patents)

13. Takao Hamada (2 out of 3 patents)

14. Shunroh Nagata (2 out of 2 patents)

15. Akira Seki (2 out of 2 patents)

23 patents: Sort by Forward Citations

1. 8029930 - Positive electrode material for lithium secondary battery, method for producing the same, and lithium secondary battery (2011-10-04),

2. 7510804 - Cathode material for use in lithium secondary battery and manufacturing method thereof (2009-03-31),

3. 7244286 - Copper alloy powder for electrically conductive paste (2007-07-17),

4. 7175688 - Ni-Fe based alloy powder (2007-02-13),

5. 6982047 - Surface-treated ultrafine metal powder, method for producing the same, conductive metal paste of the same, and multilayer ceramic capacitor using said paste (2006-01-03),

6. 6903645 - Surface mounting type planar magnetic device and production method thereof (2005-06-07),

7. 6881377 - Methods for manufacturing capacitors and electrodes using ultrafine nickel powder (2005-04-19),

8. 6881239 - Ultrafine metal powder slurry with high dispersibility (2005-04-19),

9. 6765786 - Niobium powder and solid electrolytic capacitor using the same (2004-07-20),

10. 6756238 - Domain controlled piezoelectric single crystal and fabrication method therefor (2004-06-29),

11. 6635100 - Niobium powder and anode for solid electrolyte capacitors made therefrom (2003-10-21),

12. 6579619 - Potassium titanate powder (2003-06-17),

13. 6402803 - Ultrafine nickel powder (2002-06-11),

14. 6383626 - Magnetic ferrite film for magnetic devices (2002-05-07),

15. 6335096 - Potassium titanate fine particles (2002-01-01),

Company Overview

Kawatetsu Mining Co., Ltd. is a prominent player in the mining and mineral resources sector, specializing in the exploration and extraction of various minerals. The company is known for its commitment to sustainable practices and innovation in resource management. With a strong presence in Japan, Kawatetsu focuses on enhancing the efficiency of mining operations through advanced technologies and research. Its expertise extends to the development of materials that support various industries, contributing to the global supply chain of essential resources.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

23 Patents

#1,246 in Tokyo

#2,705 in Japan

#27,685 in the World

Kawatetsu Mining Co., Ltd.

Forward Citations = 156

32 inventors:

Hidefumi Konnai (6 out of 15 patents)

Kan Saito (4 out of 6 patents)

Yoshio Aso (4 out of 6 patents)

4. Yuuki Narita (3 out of 4 patents)

5. Yoshihito Tachi (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kawatetsu Mining Co., Ltd.. Retrieved from https://idiyas.com/company/kawatetsu-mining-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]

Loading…