EPO Patents = 1

Trademarks = 3

Forward Citations = 4

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22 inventors (with patents filed for the assignee):

Shogo Nakahara (2 out of 6 patents)

Hiroyoshi Nakayama (2 out of 3 patents)

Tsutomu Kusuhara (2 out of 5 patents)

4. Hiroshi Oshiumi (2 out of 2 patents)

5. Yukihiro Hatagishi (2 out of 2 patents)

6. Shinnosuke Takenaka (2 out of 2 patents)

7. Tatsuya Ooue (1 out of 2 patents)

8. Hiroki Nakata (1 out of 4 patents)

9. Kohei Adachi (1 out of 2 patents)

10. Mitsuhiro Izumi (1 out of 9 patents)

11. Kouji Hiragi (1 out of 2 patents)

12. Junichi Tanda (1 out of 1 patent)

13. Michinori Matsuda (1 out of 1 patent)

14. Atsushi Shono (1 out of 1 patent)

15. Takushi Nishimura (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 12416281 - Ignition device (2025-09-16),

2. 12341346 - Renewable energy-use power system (2025-06-24),

3. 12249452 - Ignition coil for use in internal combustion engine (2025-03-11),

4. 12155180 - Igniter (2024-11-26),

5. 11898528 - Ignition device (2024-02-13),

6. 11563376 - Power conversion device (2023-01-24),

7. 11558967 - Electronic equipment and electronic control device (2023-01-17),

8. 11557972 - Power conversion device (2023-01-17),

9. 11557883 - Ignition device (2023-01-17),

10. 11495403 - Ignition coil for internal combustion engine and production method for the same (2022-11-08),

11. 11476770 - DC-DC converter including first and second full-bridge circuits for performing soft switching and reducing switching losses (2022-10-18),

12. 11349399 - DC-DC converter (2022-05-31),

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

12 Patents

#364 in Osaka

#3,833 in Japan

#46,665 in the World

Osaka, Japan

Diamond&zebra Electric Mfg.co., Ltd.