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Japan Metals & Chemicals Co., Ltd.

USPTO Granted Patents = 50

EPO Patents = 2

Forward Citations = 264

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165 inventors (with patents filed for the assignee):

Kenichi Kobayashi (7 out of 12 patents)

Tatsuhiko Fujinuma (6 out of 7 patents)

Katsuyuki Kudo (4 out of 4 patents)

4. Toyoshi Iida (4 out of 4 patents)

5. Takashi Sasai (4 out of 4 patents)

6. Toshitsugu Matsuda (3 out of 4 patents)

7. Takeshi Sotomura (3 out of 3 patents)

8. Hidenori Tomioka (3 out of 3 patents)

9. Ryoichi Shimizugawa (3 out of 4 patents)

10. Hisao Takehara (3 out of 4 patents)

11. Koh Takahashi (3 out of 3 patents)

12. Kunio Katagiri (3 out of 3 patents)

13. Takao Sawa (3 out of 3 patents)

14. Saki Notoyama (3 out of 3 patents)

15. Takashi Matsui (2 out of 109 patents)

Core Competencies:

Hydrogen Storage Alloy

Alkaline Storage Battery

Air Electrode Catalyst

Magnesium-Based Alloys

Electrolytic Manganese Dioxide

High-Purity Metallic Chromium

Geothermal Energy

Ferrite Production

Electroluminescence Display

Chemical Injection Tube

Drilling Fluid Additives

Manganese Fertilizer

50 patents: Sort by Forward Citations

1. 12272819 - Hydrogen storage alloy for alkaline storage battery, alkaline storage battery using the same as negative electrode, and vehicle (2025-04-08),

2. 12266791 - Hydrogen storage alloy for alkaline storage battery (2025-04-01),

3. 12024757 - Hydrogen storage alloy for alkaline storage battery and alkaline storage battery using the same (2024-07-02),

4. 11495804 - Air electrode catalyst for air secondary battery and air secondary battery (2022-11-08),

5. 8475608 - Magnesium-based hydrogen storage alloys (2013-07-02),

6. 8141739 - Hydrogen storage tank and manufacturing method for the same (2012-03-27),

7. 7988800 - Method for producing Mg-REM-Ni based hydrogen-absorbing alloy (2011-08-02),

8. 5968449 - Iron base Si--Mn alloy or iron base Si--Mn--Ni alloy having good (1999-10-19),

9. 5938910 - Electrolytic manganese dioxide and method of manufacturing the same (1999-08-17),

10. 5916519 - Hydrogen storage alloy containing iron (1999-06-29),

11. 5807532 - Method of producing spinel type limn204 (1998-09-15),

12. 5749935 - Manganese fertilizer (1998-05-12),

13. 5746902 - Electrolytic manganese dioxide and method of manufacturing the same (1998-05-05),

14. 5561833 - Method of making high oxygen chromium target (1996-10-01),

15. 5482614 - Electroluminescence display (1996-01-09),

Japan Metals & Chemicals Co., Ltd. is a leading company specializing in the distribution of various metals and chemicals in Japan. With over 50 years of experience, they provide a wide range of high-quality products to industries such as automotive, electronics, energy, and more. Their expertise in sourcing, logistics, and technical support ensures reliable and efficient supply chain solutions for their customers. Visit their website to learn more about their offerings and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

50 Patents

#700 in Tokyo

#1,673 in Japan

#13,575 in the World

Japan Metals & Chemicals Co., Ltd.

Forward Citations = 264

165 inventors:

Kenichi Kobayashi (7 out of 12 patents)

Tatsuhiko Fujinuma (6 out of 7 patents)

Katsuyuki Kudo (4 out of 4 patents)

4. Toyoshi Iida (4 out of 4 patents)

5. Takashi Sasai (4 out of 4 patents)

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