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EPO Patents = 5

Trademarks = 4

Forward Citations = 13

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18 inventors (with patents filed for the assignee):

Naoyuki Tsukamoto (4 out of 4 patents)

Toshihiko Suzuki (4 out of 10 patents)

Hideyuki Okinaka (2 out of 29 patents)

4. Nobuyuki Kamihara (1 out of 19 patents)

5. Yuichiro Kamino (1 out of 28 patents)

6. Kenta Hiwatari (1 out of 1 patent)

7. Tooru Hashigami (1 out of 4 patents)

8. Hiroki Makimura (1 out of 1 patent)

9. Koki Higashide (1 out of 1 patent)

10. Masaki Kitaoka (1 out of 1 patent)

11. Naotatsu Ishimaru (1 out of 1 patent)

12. Shinsuke Takenaka (1 out of 1 patent)

13. Yoshimasa Tsujimoto (1 out of 1 patent)

14. Hiroyuki Otsuki (1 out of 1 patent)

15. Tetsuya Honda (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 9663644 - Resin material having non-OHMIC properties, method for producing same, and non-OHMIC resistor using said resin material (2017-05-30),

2. 9071050 - Current generating device (2015-06-30),

3. 9007167 - Non-linear resistive element (2015-04-14),

4. 8902039 - Non-linear resistive element (2014-12-02),

5. 8896409 - Non-linear resistive element and manufacturing method thereof (2014-11-25),

6. 4086189 - Resistive element having voltage non-linearity and method of making same (1978-04-25),

Otowa Electric Co., Ltd. is a leading electrical engineering company based in Tokyo, Japan. With over 50 years of experience, Otowa Electric specializes in providing a wide range of electrical services including installation, maintenance, and repair for industrial, commercial, and residential clients. The company is committed to delivering high-quality and reliable electrical solutions to meet the diverse needs of its customers.

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Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

6 Patents

#10 in Osaka-Shi

#5,843 in Japan

Osaka-Shi, Japan

Otowa Electric Co., Ltd.