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Mitsubishi Engineering-Plastics Corporation

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USPTO Granted Patents = 140

% Expired Patents = 3.6

EPO Patents = 93

Trademarks = 7

Forward Citations = 856

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163 inventors (with patents filed for the assignee):

Yasushi Yamanaka (14 out of 18 patents)

Toshiki Monden (11 out of 16 patents)

Ryusuke Yamada (7 out of 8 patents)

4. Takahiro Takano (7 out of 11 patents)

5. Yoshihiro Kurasawa (7 out of 7 patents)

6. Keisuke Tomita (6 out of 9 patents)

7. Michio Nakata (6 out of 6 patents)

8. Hiroshi Nakano (6 out of 45 patents)

9. Kiyoji Takagi (6 out of 8 patents)

10. Hiroyuki Imaizumi (6 out of 6 patents)

11. Hiroshi Urabe (6 out of 6 patents)

12. Satoshi Kanayama (6 out of 6 patents)

13. Shinya Miya (6 out of 6 patents)

14. Naoto Obayashi (6 out of 8 patents)

15. Atsushi Motegi (5 out of 5 patents)

Core Competencies:

Polycarbonate Resin

Thermoplastic Resin

Flame Retardant

Polyamide Resin

Polybutylene Terephthalate

Polyacetal Resin

Molded Article

Laser Direct Structuring

Composite Molding

Optical Component

Resin Composition

Injection Molded Article

140 patents: Sort by Forward Citations

1. 12767819 - Resin composition, molded article, and method for manufacturing plated molded article (2026-10-20),

2. 12397475 - Method for producing flame retardant polycarbonate resin composition pellet (2025-08-26),

3. D1079532 - Ear cuff (2025-06-17),

4. 12031032 - Thermoplastic resin including a flame retardant and organopolysiloxane (2024-07-09),

5. 11613629 - Polycarbonate resin composition pellet, method for producing pellet, and molded article thereof (2023-03-28),

6. 11613626 - Polycarbonate resin composition (2023-03-28),

7. 11608426 - Polycarbonate resin composition (2023-03-21),

8. 11603467 - Polycarbonate resin composition (2023-03-14),

9. 11597827 - Resin composition, pellet, composite molded article, method for manufacturing composite molded article and tank (2023-03-07),

10. D970620 - Color sample plate (2022-11-22),

11. 11441031 - Thermoplastic resin composition, molded article, method for manufacturing thermoplastic resin composition, and, method for manufacturing plated molded article (2022-09-13),

12. 11427679 - Polycarbonate resin composition (2022-08-30),

13. 11397372 - Molded article and method for manufacturing molded article (2022-07-26),

14. 11390037 - Laser welded body (2022-07-19),

15. 11384237 - Polyacetal resin composition, molded article and method for manufacturing polyacetal resin composition (2022-07-12),

Company Overview

Mitsubishi Engineering-Plastics Corporation, headquartered in Tokyo, specializes in the development and manufacturing of advanced thermoplastic resin compositions. The company focuses on a range of core technologies, including polycarbonate resin, polyamide resin, and flame retardant materials. With expertise in polybutylene terephthalate and polyacetal resin, Mitsubishi Engineering-Plastics is committed to delivering high-performance molded articles and innovative solutions, particularly in sectors requiring durable and versatile materials.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

140 Patents

#444 in Tokyo

#899 in Japan

#5,796 in the World

Mitsubishi Engineering-Plastics Corporation

Forward Citations = 856

163 inventors:

Yasushi Yamanaka (14 out of 18 patents)

Toshiki Monden (11 out of 16 patents)

Ryusuke Yamada (7 out of 8 patents)

4. Takahiro Takano (7 out of 11 patents)

5. Yoshihiro Kurasawa (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mitsubishi Engineering-Plastics Corporation. Retrieved from https://idiyas.com/company/mitsubishi-engineering-plastics

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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