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Maxell Holdings, Ltd.

USPTO Granted Patents = 52

% Expired Patents = 13.5

EPO Patents = 19

Trademarks = 9

Forward Citations = 123

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102 inventors (with patents filed for the assignee):

Toshio Hiroi (5 out of 9 patents)

Masao Fujita (5 out of 22 patents)

Tomohisa Nishimoto (4 out of 7 patents)

4. Tadahiro Kuwa (4 out of 5 patents)

5. Keiko Yamanaka (4 out of 5 patents)

6. Yoshimasa Mitsumoto (4 out of 5 patents)

7. Shinji Kawakami (4 out of 14 patents)

8. Noriyuki Yabushita (3 out of 9 patents)

9. Yu Sugioka (3 out of 3 patents)

10. Mitsutoshi Watanabe (3 out of 6 patents)

11. Kunihiko Koyama (3 out of 4 patents)

12. Hideaki Katayama (3 out of 20 patents)

13. Toshihiro Abe (3 out of 19 patents)

14. Nobuaki Matsumoto (3 out of 12 patents)

15. Masashi Yoshimura (3 out of 6 patents)

Core Competencies:

Electromagnetic Absorber

Inkjet Ink Set

Electrochemical Device

Non-Aqueous Battery

Conductive Film

Magnetic Recording Medium

Lithium-Ion Battery

Charging Control System

Battery Pack

Coating Composition

Image Projection Apparatus

Broadcast Receiving System

52 patents: Sort by Forward Citations

1. 11249341 - Image projection apparatus (2022-02-15),

2. 11240549 - Broadcast receiving system (2022-02-01),

3. 11231611 - Coating composition, conductive film and liquid crystal display panel (2022-01-25),

4. 11201367 - Flat battery (2021-12-14),

5. 11183723 - Cap for battery case and battery (2021-11-23),

6. 11177535 - Separator and non-aqueous electrolyte battery (2021-11-16),

7. 11152711 - Electromagnetic-wave-absorbing sheet (2021-10-19),

8. 11127951 - Alkaline secondary battery (2021-09-21),

9. 11111401 - Light curing molding ink set, and method for manufacturing light cured article (2021-09-07),

10. 11100948 - Coating-type magnetic recording medium for heat-assisted recording, and heat-assisted magnetic recording apparatus and heat-assisted magnetic recording method using the same (2021-08-24),

11. 11098211 - Photocurable inkjet primer ink composition, inkjet ink set and inkjet recording method (2021-08-24),

12. 11075420 - Coin-type battery and manufacturing method thereof (2021-07-27),

13. 11063311 - Battery with external terminals (2021-07-13),

14. 11050095 - Separator for electrochemical device, and electrochemical device (2021-06-29),

15. 11013125 - Method for producing plated component, plated component, catalytic activity inhibitor and composite material for electroless plating (2021-05-18),

Maxell Holdings, Ltd., headquartered in Kyoto, Japan, specializes in advanced battery technology and related innovations. The company develops a range of products, including lithium-ion batteries, non-aqueous batteries, and electrochemical devices, catering to various industries. Maxell is also known for its expertise in electromagnetic absorbers, conductive films, and magnetic recording media, positioning itself as a key player in the evolving landscape of energy storage and electronic materials.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

52 Patents

#61 in Kyoto 615-0031

#1,667 in Japan

#13,537 in the World

Maxell Holdings, Ltd.

Forward Citations = 123

102 inventors:

Toshio Hiroi (5 out of 9 patents)

Masao Fujita (5 out of 22 patents)

Tomohisa Nishimoto (4 out of 7 patents)

4. Tadahiro Kuwa (4 out of 5 patents)

5. Keiko Yamanaka (4 out of 5 patents)

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