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Mitsui Chemicals Tohcello, Inc.

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USPTO Granted Patents = 60

% Expired Patents = 10.0

EPO Patents = 33

Trademarks = 1

Forward Citations = 65

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76 inventors (with patents filed for the assignee):

Eiji Hayashishita (17 out of 20 patents)

Shigenobu Ikenaga (10 out of 24 patents)

Hiroyoshi Kurihara (9 out of 13 patents)

4. Fumito Takeuchi (9 out of 17 patents)

5. Tomoaki Ito (8 out of 14 patents)

6. Akimitsu Morimoto (7 out of 9 patents)

7. Jin Kinoshita (6 out of 9 patents)

8. Kouji Igarashi (5 out of 5 patents)

9. Toru Miura (4 out of 57 patents)

10. Jun Kamada (4 out of 14 patents)

11. Kazuhiro Yarimizu (4 out of 4 patents)

12. Keiji Watanabe (4 out of 5 patents)

13. Nobuhiro Maruko (3 out of 9 patents)

14. Masaaki Odoi (3 out of 3 patents)

15. Shingo Suzuki (3 out of 3 patents)

Core Competencies:

Gas Barrier Film

Adhesive Film

Semiconductor Device

Electronic Device

Component Manufacturing

Protective Film

Encapsulating Material

Solar Cell Module

Pressure-Sensitive Adhesive

Polyfunctional Polymer

Thermal Transfer Sheet

Film Manufacturing

60 patents: Sort by Forward Citations

1. 12172816 - Packaging body (2024-12-24),

2. 12165904 - Component manufacturing device and component manufacturing method (2024-12-10),

3. 12142522 - Method for manufacturing electronic device (2024-11-12),

4. 12106974 - Method for manufacturing electronic device (2024-10-01),

5. 12103288 - Affixing device (2024-10-01),

6. 12068188 - Component producing method, holding film, and holding tool forming device (2024-08-20),

7. 12064946 - Protection film, method for affixing same, and method for manufacturing semiconductor component (2024-08-20),

8. 12018137 - Gas barrier coating material, gas barrier film, gas barrier laminate, and method for producing gas barrier laminate (2024-06-25),

9. 11984341 - Component-manufacturing tool and component-manufacturing method (2024-05-14),

10. 11942349 - Film for component manufacture and component manufacturing method (2024-03-26),

11. 11848215 - Method for manufacturing electronic device (2023-12-19),

12. 11840652 - Adhesive film and method for manufacturing electronic device (2023-12-12),

13. 11747388 - Method for manufacturing electronic apparatus, adhesive film for manufacturing electronic apparatus, and electronic component testing apparatus (2023-09-05),

14. 11746201 - Gas barrier polymer and gas barrier laminate using same (2023-09-05),

15. 11535776 - Film for manufacturing semiconductor parts (2022-12-27),

Company Overview

Mitsui Chemicals Tohcello, Inc., based in Tokyo, specializes in advanced materials for semiconductor manufacturing. The company focuses on developing innovative solutions such as gas barrier films, adhesive films, and protective films that enhance the performance and reliability of electronic devices. With a strong emphasis on encapsulating materials and components for solar cell modules, Mitsui Chemicals Tohcello plays a crucial role in the evolving landscape of electronic and semiconductor technologies, contributing to advancements in various high-tech applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

60 Patents

#722 in Tokyo

#1,534 in Japan

#12,098 in the World

Mitsui Chemicals Tohcello, Inc.

Forward Citations = 65

76 inventors:

Eiji Hayashishita (17 out of 20 patents)

Shigenobu Ikenaga (10 out of 24 patents)

Hiroyoshi Kurihara (9 out of 13 patents)

4. Fumito Takeuchi (9 out of 17 patents)

5. Tomoaki Ito (8 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitsui Chemicals Tohcello, Inc.. Retrieved from https://idiyas.com/company/mitsui-chemicals-tohcello

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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