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Yamaichi Electronics Co., Ltd.

USPTO Granted Patents = 340

EPO Patents = 18

Trademarks = 10

Forward Citations = 2,931

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160 inventors (with patents filed for the assignee):

Toshiyasu Ito (75 out of 83 patents)

Noriyuki Matsuoka (42 out of 92 patents)

Yosuke Takai (28 out of 28 patents)

4. Shigeru Sato (22 out of 39 patents)

5. Takeyuki Suzuki (20 out of 34 patents)

6. Katsumi Suzuki (18 out of 62 patents)

7. Masaaki Ooya (17 out of 19 patents)

8. Kazumi Uratsuji (16 out of 38 patents)

9. Yuji Nakamura (15 out of 64 patents)

10. Shunji Abe (12 out of 34 patents)

11. Yoshiharu Ishii (10 out of 10 patents)

12. Hiroshi Takahira (10 out of 10 patents)

13. Ryo Ujike (10 out of 10 patents)

14. Takeshi Nishimura (9 out of 13 patents)

15. Takahiro Shimoyama (9 out of 19 patents)

Core Competencies:

High-Frequency Signal Transmission

High-Speed Transmission Connector

Receptacle Cage

Connector Assembly

Circuit Board Housing

Impedance Mismatch Suppression

Optical Module Connector

Inspection Socket

Mezzanine Connector Housing

Transceiver Module Assembly

Contact Probe

Kelvin Contact

340 patents: Sort by Forward Citations

1. 12512613 - High-frequency signal transmission device and electrical connection method for wiring board and connector (2025-12-30),

2. 12500378 - Plug connector and receptacle connector, and method of extracting plug connector (2025-12-16),

3. D1103123 - Receptacle cage (2025-11-25),

4. 12477653 - High-frequency signal transmission device and high-frequency signal transmission cable (2025-11-18),

5. 12461124 - Contact pin and socket for inspection (2025-11-04),

6. 12456829 - Connector and assembly method of connector (2025-10-28),

7. D1099056 - Case for containing circuit board (2025-10-21),

8. 12451633 - High-speed transmission device, cable assembly, and high-speed transmission connector (2025-10-21),

9. D1098061 - Case for containing circuit board (2025-10-14),

10. D1098050 - Receptacle cage (2025-10-14),

11. 12438294 - High-speed transmission device, cable assembly, and high-speed transmission connector (2025-10-07),

12. 12422200 - Cage assembly and receptacle assembly (2025-09-23),

13. 12418125 - Impedance mismatch suppressing connector (2025-09-16),

14. 12407136 - Connector for high-speed transmission (2025-09-02),

15. 12372732 - Connector for high-speed transmission (2025-07-29),

Yamaichi Electronics Co., Ltd. is a global manufacturer of electronic connectors and test sockets. With over 85 years of experience, the company offers a wide range of reliable and high-quality solutions for various industries. Yamaichi Electronics is committed to providing innovative products that meet the evolving needs of customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

340 Patents

#217 in Tokyo

#475 in Japan

#2,587 in the World

Yamaichi Electronics Co., Ltd.

Forward Citations = 2,931

160 inventors:

Toshiyasu Ito (75 out of 83 patents)

Noriyuki Matsuoka (42 out of 92 patents)

Yosuke Takai (28 out of 28 patents)

4. Shigeru Sato (22 out of 39 patents)

5. Takeyuki Suzuki (20 out of 34 patents)

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