For the Inventor, By the Inventor

Enter assignee name

Mitsubishi Paper Mills Limited

USPTO Granted Patents = 622

EPO Patents = 31

Trademarks = 8

Forward Citations = 4,527

Loading Chart...

Loading Chart...

478 inventors (with patents filed for the assignee):

Shigetoshi Hiraishi (44 out of 44 patents)

Toshihiko Matsushita (42 out of 43 patents)

Sadao Morishita (42 out of 43 patents)

4. Yasuo Tsubai (33 out of 33 patents)

5. Akio Yoshida (25 out of 57 patents)

6. Akira Tanaka (24 out of 56 patents)

7. Touru Noda (24 out of 24 patents)

8. Eiji Kanada (24 out of 25 patents)

9. Toshiro Kondo (23 out of 25 patents)

10. Masanori Nagoshi (17 out of 17 patents)

11. Shigeyoshi Suzuki (17 out of 17 patents)

12. Akira Furukawa (16 out of 81 patents)

13. Mikiya Sekine (16 out of 16 patents)

14. Takao Senga (16 out of 17 patents)

15. Jun Urasaki (15 out of 15 patents)

Core Competencies:

Non-Woven Fabric

Solid Electrolyte

Lithium Ion Battery

Cryopreservation

Photosensitive Resin

Textile Printing Paper

Electrochemical Elements

Optically Transparent Conductive Material

Thermal Recording Material

Coated Printing Paper

Total Heat Exchange Element

622 patents: Sort by Forward Citations

1. 12486602 - Non-woven fabric for supporting solid electrolyte, and solid electrolyte sheet (2025-12-02),

2. 12006634 - Paper for total heat exchange element and total heat exchange element (2024-06-11),

3. 11998879 - Semipermeable membrane support (2024-06-04),

4. 11881595 - Coating solution for lithium ion battery separators and lithium ion battery separator (2024-01-23),

5. 11735797 - Coating solution for lithium ion battery separators and lithium ion battery separator (2023-08-22),

6. 11721492 - Capacitor block having a spacer (2023-08-08),

7. 11637349 - Substrate for lithium ion battery separators and lithium ion battery separator (2023-04-25),

8. D972162 - Fixture for cryopreservation device (2022-12-06),

9. 11510408 - Cryopreservation jig for cryopreserving cells or tissues (2022-11-29),

10. D970746 - Stage for cell cryopreservation operation (2022-11-22),

11. 11480396 - Total heat exchange element paper and total heat exchange element (2022-10-25),

12. 11335972 - Lithium ion battery separator and lithium ion battery (2022-05-17),

13. 11313076 - Transfer paper (2022-04-26),

14. 11142620 - Photosensitive resin composition, etching method and plating method (2021-10-12),

15. 11117411 - Transfer paper (2021-09-14),

Mitsubishi Paper Mills Limited is a global leader in the manufacture and distribution of high-quality paper products. With a rich history spanning over a century, the company is dedicated to providing innovative solutions and enhancing its customers' lives. Headquartered in Tokyo, Japan, Mitsubishi Paper Mills operates a wide range of business divisions including specialty paper, imaging products, and converted paper products. The company is committed to sustainability and continually strives to minimize its environmental impact through eco-friendly production processes and responsible sourcing of raw materials.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

622 Patents

#135 in Tokyo

#313 in Japan

#1,542 in the World

Mitsubishi Paper Mills Limited

Forward Citations = 4,527

478 inventors:

Shigetoshi Hiraishi (44 out of 44 patents)

Toshihiko Matsushita (42 out of 43 patents)

Sadao Morishita (42 out of 43 patents)

4. Yasuo Tsubai (33 out of 33 patents)

5. Akio Yoshida (25 out of 57 patents)

Please report any incorrect information to support@idiyas.com

Loading…