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USPTO Data Jan 1 1976 - Dec 2 2025
21 Patents
#1 in Yokosuka-Shi, Kanagawa
#2,798 in Japan
#29,020 in the World
Oppama Industry Co., Ltd
Forward Citations = 79
23 inventors:
Oppama Industry Co., Ltd
Patents = 21
Forward Citations = 79
where 'Filed Patents' based on already Granted Patents
where 'Inventors Filed' based on already Granted Patents
23 inventors (with patents filed for the assignee):
Masao Iwata (10 out of 19 patents)
Yoshiki Kitamura (6 out of 7 patents)
Yuichi Tsuyuki (4 out of 4 patents)
4. Shigeyuki Suzuki (4 out of 4 patents)
5. Norio Kawai (4 out of 5 patents)
6. Shigeo Take (4 out of 13 patents)
7. Hiromi Watanabe (3 out of 8 patents)
8. Kohsuke Watanabe (3 out of 3 patents)
9. Toshiyuki Takano (3 out of 3 patents)
10. Kiyoshige Enomoto (3 out of 10 patents)
11. Takuo Yoshizaki (2 out of 8 patents)
12. Fumitake Matsuda (2 out of 2 patents)
13. Atsushi Kawahara (2 out of 2 patents)
14. Takahiro Yamazaki (1 out of 44 patents)
15. Yuta Kobayashi (1 out of 9 patents)
21 patents:
7. 7726181 - Ignition timing measuring and display device of internal combustion engine (2010-06-01),
12. 6467147 - Magneto electric generator rotor and an implement for removing this rotor (2002-10-22),
Oppama Industry Co., Ltd is a leading manufacturer of automotive components based in Japan. With over 50 years of experience in the industry, we specialize in the production of high-quality parts for various vehicles. Our expertise includes manufacturing precision components such as transmission parts, engine parts, and chassis components. We are committed to providing innovative solutions and exceptional quality to meet the needs of our customers worldwide.
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