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Idemitsu Unitech Co., Ltd.

USPTO Granted Patents = 60

% Expired Patents = 31.7

CIPO Patents = 1

EPO Patents = 28

Trademarks = 2

Forward Citations = 187

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36 inventors (with patents filed for the assignee):

Kenichi Tanaka (18 out of 68 patents)

Takumi Todaka (15 out of 15 patents)

Ryo Katada (14 out of 14 patents)

4. Shuichi Goto (13 out of 25 patents)

5. Yoshinori Nanba (8 out of 8 patents)

6. Yoshinori Namba (4 out of 4 patents)

7. Tomoyuki Kitajima (4 out of 6 patents)

8. Kaname Kondo (3 out of 3 patents)

9. Shunichi Ito (3 out of 3 patents)

10. Hiroaki Yoshimura (2 out of 3 patents)

11. Raizo Kuge (2 out of 21 patents)

12. Hiroyuki Takahashi (2 out of 8 patents)

13. Takuto Ogawa (2 out of 3 patents)

14. Toshiya Sato (2 out of 2 patents)

15. Tomohiko Tamaoki (2 out of 2 patents)

Core Competencies:

Zipper Tape

Bag Manufacturing

Container Design

Easily Tearable Tape

Fastener Bag

Laminated Body

Chuck Tape

Film Processing

Interlocking Device

Transparent Polypropylene

Cutting Tape

Easy-Open Container

60 patents: Sort by Forward Citations

1. 12472718 - Zipper tape-equipped bag body, article housing method for zipper tape-equipped bag body, manufacturing method for zipper tape-equipped bag body, and manufacturing device for zipper tape-equipped bag body (2025-11-18),

2. 12279677 - Tape, zipper tape, and container with tape and method for manufacture therefor (2025-04-21),

3. 12258179 - Tape, zipper tape, tape-equipped container, and zipper tape-equipped container (2025-03-25),

4. 12214932 - Zipper tape and container equipped with zipper tape (2025-02-04),

5. 12122560 - Zipper tape, bag provided with zipper tape, and method for manufacturing bag provided with zipper tape (2024-10-22),

6. 12037178 - Bag-like container and bag-like container production method (2024-07-16),

7. 12011897 - Film processing device, bag manufacturing device, method for processing film, and method for manufacturing bag (2024-06-18),

8. 11999532 - Bag body, and manufacturing method and manufacturing device for bag body (2024-06-04),

9. 11897662 - Bag with attached zipper tape, manufacturing method of bag with attached zipper tape (2024-02-13),

10. 11882908 - Tape, zipper tape, and container with tape and method for manufacture therefor (2024-01-30),

11. 11845589 - Bag body, film body, and method for manufacturing bag body (2023-12-19),

12. 11649090 - Bag body provided with zipper tape, bag body, method for producing bag body, and device for producing bag body (2023-05-16),

13. 11542065 - Bag with attached zipper tape, manufacturing method of bag with attached zipper tape (2023-01-03),

14. 11414255 - Bag body and method for manufacturing bag body (2022-08-16),

15. 11370064 - Zipper tape, bag with zipper tape, method for manufacturing bag with zipper tape, long member-bonding method capable of favorably bonding long members, device therefor, and zipper tape-bonding device (2022-06-28),

Company Overview

Idemitsu Unitech Co., Ltd., based in Tokyo, specializes in advanced zipper tape technology, focusing on innovative solutions for bag manufacturing and container design. The company is recognized for its development of easily tearable tapes and fastener bags, enhancing user convenience and product functionality. With expertise in laminated body and chuck tape technologies, Idemitsu Unitech plays a significant role in the film processing sector, contributing to the evolution of packaging solutions across various industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

60 Patents

#722 in Tokyo

#1,534 in Japan

#12,083 in the World

Idemitsu Unitech Co., Ltd.

Forward Citations = 187

36 inventors:

Kenichi Tanaka (18 out of 68 patents)

Takumi Todaka (15 out of 15 patents)

Ryo Katada (14 out of 14 patents)

4. Shuichi Goto (13 out of 25 patents)

5. Yoshinori Nanba (8 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Idemitsu Unitech Co., Ltd.. Retrieved from https://idiyas.com/company/idemitsu-unitech-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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