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Diamond Electric Mfg. Co., Ltd.

USPTO Granted Patents = 28

EPO Patents = 1

Trademarks = 1

Forward Citations = 252

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44 inventors (with patents filed for the assignee):

Yoshio Ishida (6 out of 8 patents)

Mitsuhiro Izumi (5 out of 9 patents)

Shogo Nakahara (4 out of 6 patents)

4. Akimi Shutou (4 out of 4 patents)

5. Masao Watanabe (3 out of 5 patents)

6. Yoshiyuki Fukumura (3 out of 5 patents)

7. Kazuhiro Nakamura (2 out of 6 patents)

8. Masayuki Nishimura (2 out of 3 patents)

9. Tsuyoshi Yamaguchi (2 out of 25 patents)

10. Hiroshi Morita (2 out of 13 patents)

11. Morito Asano (2 out of 4 patents)

12. Manabu Takeuchi (2 out of 3 patents)

13. Tsutomu Kusuhara (2 out of 5 patents)

14. Morita Asano (2 out of 2 patents)

15. Takashi Doi (2 out of 2 patents)

28 patents: Sort by Forward Citations

1. 11469676 - DC-DC converter (2022-10-11),

2. 11189422 - Ignition coil (2021-11-30),

3. 11147173 - Electronic device (2021-10-12),

4. 11095219 - Converter with soft switching function (2021-08-17),

5. 11025174 - Converter with soft switching function (2021-06-01),

6. 10998810 - Converter with soft switching function (2021-05-04),

7. 10995724 - Igniter assembly and igniter unit (2021-05-04),

8. 10056185 - Ignition coil realizing a closed magnetic circuit and higher efficiency (2018-08-21),

9. 8813732 - Internal combustion engine control system (2014-08-26),

10. 7971571 - Operation control method on the basis of ion current in internal combustion engine (2011-07-05),

11. 7746079 - Ion current detecting apparatus for internal combustion engine (2010-06-29),

12. 7506641 - Ignition device (2009-03-24),

13. 7451640 - Smoldering determination method of internal combustion engine (2008-11-18),

14. 7448253 - Combustion state determination method of internal combustion engine (2008-11-11),

15. 6860256 - Ignition apparatus for internal combustion engine (2005-03-01),

Diamond Electric MFG. Co., Ltd. specializes in the design, development, and manufacturing of electronic components for various industries. With over 70 years of experience, the company has established itself as a global leader in automotive ignition systems, power modules, and other electric components. They strive to provide innovative solutions that enhance the performance and reliability of their products. For more information, please visit their official website.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

28 Patents

#229 in Osaka

#2,357 in Japan

#22,582 in the World

Diamond Electric Mfg. Co., Ltd.

Forward Citations = 252

44 inventors:

Yoshio Ishida (6 out of 8 patents)

Mitsuhiro Izumi (5 out of 9 patents)

Shogo Nakahara (4 out of 6 patents)

4. Akimi Shutou (4 out of 4 patents)

5. Masao Watanabe (3 out of 5 patents)

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