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Enplas Corporation

USPTO Granted Patents = 772

% Expired Patents = 42.2

EPO Patents = 71

Trademarks = 6

Forward Citations = 5,565

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257 inventors (with patents filed for the assignee):

Shimpei Morioka (52 out of 52 patents)

Tomohiro Saito (46 out of 46 patents)

Shingo Ohkawa (41 out of 83 patents)

4. Koichi A Ono (27 out of 94 patents)

5. Tsuyoshi Ishikawa (23 out of 99 patents)

6. Ayano Kon (23 out of 23 patents)

7. Koji Noguchi (23 out of 43 patents)

8. Masato Nakamura (21 out of 21 patents)

9. Hiroshi Takatori (21 out of 21 patents)

10. Yasushi Kajiwara (20 out of 20 patents)

11. Masahiro Kidachi (18 out of 19 patents)

12. Kazuaki Yokoyama (17 out of 17 patents)

13. Osamu Hachuda (16 out of 16 patents)

14. Noriyuki Kawahara (16 out of 16 patents)

15. Masao Yamaguchi (16 out of 113 patents)

Core Competencies:

Optical Connector

Fluid Handling Device

Planetary Gear Device

Contact Probe

Socket

Electromagnetic Flux

Light Emitting Device

Separation Structure

Container

Test Device

Drip Irrigation Tube

Manufacturing Method

772 patents: Sort by Forward Citations

1. 12765421 - Surface light source device (2026-10-13),

2. 12754380 - Ferrule, optical connector, and optical connector module (2026-10-06),

3. 12717185 - Surface light source device, display device and light flux controlling member (2026-08-25),

4. 12684915 - Light emitting device, surface light source device, and display device (2026-07-14),

5. 12681041 - Socket and inspection socket (2026-07-14),

6. 12613378 - Optical connector, optical connector module, and method for producing optical connector (2026-04-28),

7. 12594552 - Container and liquid handling device (2026-04-07),

8. 12584945 - Contact probe and socket for electrical component testing (2026-03-24),

9. 12582980 - Fluid handling device and fluid handling system (2026-03-24),

10. 12580651 - Communication module and electromagnetic flux controlling member (2026-03-17),

11. 12529519 - Container, fluid handling device, and freeze-drying method (2026-01-20),

12. 12528032 - Mesh filter and fluid handling device (2026-01-20),

13. 12467948 - Contact probe (2025-11-11),

14. 12467944 - Socket and inspection socket (2025-11-11),

15. 12461125 - Contact probe (2025-11-04),

Company Overview

Enplas Corporation, headquartered in Saitama, Japan, specializes in the development and manufacturing of advanced fluid handling devices. The company is recognized for its expertise in optical connectors, planetary gear devices, and contact probes, contributing significantly to various industries. Enplas focuses on innovative technologies such as electromagnetic flux and light-emitting devices, enhancing the performance and reliability of its products. With a commitment to quality and precision, Enplas plays a vital role in the evolution of fluid handling and optical solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

772 Patents

#6 in Saitama 343-0827

#273 in Japan

#1,297 in the World

Enplas Corporation

Forward Citations = 5,565

257 inventors:

Shimpei Morioka (52 out of 52 patents)

Tomohiro Saito (46 out of 46 patents)

Shingo Ohkawa (41 out of 83 patents)

4. Koichi A Ono (27 out of 94 patents)

5. Tsuyoshi Ishikawa (23 out of 99 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Enplas Corporation. Retrieved from https://idiyas.com/company/enplas

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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