For the Inventor, By the Inventor

Enter assignee name

Rengo Co., Ltd.

USPTO Granted Patents = 77

CIPO Patents = 1

EPO Patents = 12

Forward Citations = 836

Loading Chart...

Loading Chart...

124 inventors (with patents filed for the assignee):

Masateru Tokuno (39 out of 54 patents)

Tetsuya Sawada (18 out of 18 patents)

Yasuharu Mori (11 out of 11 patents)

4. Hidenao Saito (8 out of 8 patents)

5. Kouju Sugiyama (5 out of 5 patents)

6. Hiromu Ikeda (5 out of 5 patents)

7. Takafumi Makiuchi (5 out of 5 patents)

8. Yoichi Nishikawa (4 out of 6 patents)

9. Hirokuni Tajima (4 out of 4 patents)

10. Masao Fujita (4 out of 4 patents)

11. Yoshihiro Ishii (4 out of 4 patents)

12. Masayuki Handa (3 out of 3 patents)

13. Atsuo Ishikawa (3 out of 3 patents)

14. Hiroyuki Noguchi (3 out of 4 patents)

15. Kiyoshi Kamei (3 out of 3 patents)

Core Competencies:

Dimensionally Variable Lid

Cellulose Xanthate

Photoluminescent Material

Height-Adjustable Box

Corrugated Paperboard

Locking Structure

Volatile Substance Packaging

Antimicrobial Agent

Inorganic Porous Crystals

Moldable Pulp Material

Color Printing Machine

Tool Positioning Device

77 patents: Sort by Forward Citations

1. 11833774 - Dimensionally variable lid manufacturing method and dimensionally variable lid manufacturing device (2023-12-05),

2. 11149134 - Resin composition containing cellulose xanthate fine fibers (2021-10-19),

3. 10662257 - Cellulose xanthate nanofiber (2020-05-26),

4. 10619093 - Photoluminescent material (2020-04-14),

5. 10597184 - Method and device for assembling height-adjustable box (2020-03-24),

6. 10427828 - Corrugated paperboard box, perforation forming method for perforating corrugated paperboard sheet, and perforation forming device and perforation forming unit for perforating corrugated paperboard sheet (2019-10-01),

7. 10301058 - Locking structure, container utilizing locking structure, and container assembling apparatus (2019-05-28),

8. 9994355 - Packing box and box manufacturing apparatus (2018-06-12),

9. 9938039 - Box for packing and exhibiting product, and packing device therefor (2018-04-10),

10. 9821925 - Method and device for assembling height-adjustable box (2017-11-21),

11. 8491141 - Photoluminescent material containing silver ion (2013-07-23),

12. 8383526 - Sheet for total heat exchanger (2013-02-26),

13. 8277911 - Anticorrosion composition (2012-10-02),

14. 7910209 - Cellulose granules for carrying functional substances (2011-03-22),

15. 7892334 - Package of volatile substance and air conditioner for vehicles provided with the package (2011-02-22),

Rengo Co., Ltd. is a leading Japanese packaging and paperboard manufacturer. With a rich history dating back to 1909, Rengo has grown to become a trusted provider of a wide range of packaging solutions to various industries. The company's expertise lies in designing, manufacturing, and supplying innovative packaging materials, including corrugated cardboard boxes, folding cartons, flexible packaging, and more. Rengo is committed to sustainability and actively promotes environmentally friendly practices in its operations. For more information about Rengo and its offerings, please visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

77 Patents

#125 in Osaka

#1,304 in Japan

#9,512 in the World

Rengo Co., Ltd.

Forward Citations = 836

124 inventors:

Masateru Tokuno (39 out of 54 patents)

Tetsuya Sawada (18 out of 18 patents)

Yasuharu Mori (11 out of 11 patents)

4. Hidenao Saito (8 out of 8 patents)

5. Kouju Sugiyama (5 out of 5 patents)

Please report any incorrect information to support@idiyas.com

Loading…