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For the Inventor, By the Inventor

Ehime, Japan

Daio Paper Corporation


USPTO Granted Patents = 411

% Expired Patents = 21.7


Trademarks = 20

Forward Citations = 2,259

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273 inventors (with patents filed for the assignee):

goldMedal Yosuke Mori (27 out of 27 patents)

silverMedal Takuro Shimada (22 out of 22 patents)

bronzeMedal Sadanao Manabe (17 out of 17 patents)

4.  Ryoko Kurihara (16 out of 16 patents)

5.  Migaku Suzuki (13 out of 86 patents)

6.  Shuta Yasui (12 out of 13 patents)

7.  Satoko Konawa (12 out of 13 patents)

8.  Syunsuke Sakai (11 out of 11 patents)

9.  Ikko Matsusue (10 out of 10 patents)

10.  Yoshio Hirai (10 out of 13 patents)

11.  Junta Tagomori (9 out of 9 patents)

12.  Taro Ikawa (9 out of 9 patents)

13.  Mihoko Kuramochi (9 out of 9 patents)

14.  Akinori Fukae (9 out of 10 patents)

15.  Yoko Suzuki (8 out of 8 patents)


Core Competencies:
Disposable Diaper
Absorbent Article
Wiping Sheet
Fibrous Cellulose
Packaging Bag
Wearable Article
Elastic Member
RFID Tag
Porous Ceramics
Water Dispersible Sheet
Sanitary Napkin
Tissue Paper

411 patents:

1. 12721484 - Toilet paper roll (2026-09-01),
2. 12716175 - Toilet paper roll (2026-08-25),
3. 12678344 - Disposable wearable article (2026-07-14),
4. 12642311 - Elastic member and disposable wearing article including elastic member (2026-06-02),
5. 12630980 - Wet cellulose fiber sheet and method for producing cellulose fiber molded body (2026-05-19),
6. 12629294 - Absorbent article (2026-05-19),
7. 12629292 - Attachable-type disposable wearing article (2026-05-19),
8. 12622819 - Disposable diaper (2026-05-12),
9. 12617597 - Film-packaged tissue product collective pack and packaging material for film-packaged tissue product collective pack (2026-05-05),
10. 12601106 - Wiping sheet and method for manufacturing wiping sheet (2026-04-14),
11. 12599514 - Disposable diaper and method for manufacturing same (2026-04-14),
12. 12594198 - Disposable wearing article and method for manufacturing the same (2026-04-07),
13. 12570472 - Replenishment assistance robot and replenishment assistance system (2026-03-10),
14. 12569375 - Boxer-shorts-type disposable diaper and method for producing same (2026-03-10),
15. 12564523 - Individually wrapped absorbent article and method for manufacturing individually wrapped absorbent article (2026-03-03),
Daio Paper Corporation, headquartered in Ehime, Japan, specializes in the development and manufacturing of absorbent articles, including disposable diapers and wiping sheets. The company focuses on innovative technologies related to fibrous cellulose and packaging solutions, catering to both consumer and industrial markets. With a commitment to sustainability, Daio Paper integrates advanced materials and design in its products, enhancing functionality while addressing environmental concerns. Its expertise also extends to wearable articles and RFID tag applications.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

411 Patents

#2 in Ehime

#430 in Japan

#2,277 in the World

Ehime, JP
Ehime, Japan

Daio Paper Corporation

Forward Citations = 2,259

273 inventors:

goldMedal Yosuke Mori (27 out of 27 patents)

silverMedal Takuro Shimada (22 out of 22 patents)

bronzeMedal Sadanao Manabe (17 out of 17 patents)

4.  Ryoko Kurihara (16 out of 16 patents)

5.  Migaku Suzuki (13 out of 86 patents)

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