Yoshikawa Rf Systems Co., Ltd.

Calculating rank

USPTO Granted Patents = 5

% Expired Patents = 60.0

Forward Citations = 66

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10 inventors (with patents filed for the assignee):

Takashi Kubo (3 out of 141 patents)

Kikuzo Sawada (3 out of 17 patents)

Yoshikazu Sugawara (3 out of 8 patents)

4. Eiichi Ishii (2 out of 15 patents)

5. Noboru Asauchi (1 out of 82 patents)

6. Yasuhiko Kosugi (1 out of 65 patents)

7. Naotaka Yasuda (1 out of 1 patent)

8. Yuming Tang (1 out of 1 patent)

9. Takakazu Fukano (1 out of 23 patents)

10. Kenji Suzuki (1 out of 93 patents)

5 patents: Sort by Forward Citations

1. 8497763 - Data carrier and data carrier system (2013-07-30),

2. 8109445 - Data carrier and data carrier system (2012-02-07),

3. 7834753 - Data carrier and data carrier system (2010-11-16),

4. 7142163 - Loop antenna device (2006-11-28),

5. 6118367 - Data carrier system (2000-09-12),

Company Overview

Yoshikawa RF Systems Co., Ltd. specializes in the design and manufacturing of high-quality RF systems for various applications. With a focus on innovation and quality, the company has established itself as a trusted provider in the industry. Their products are known for their reliability and precision, making them a preferred choice for many customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#12 in Kitakyushu

#6,656 in Japan

Kitakyushu, Japan