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Marusan Packing Manufacturing Co.

USPTO Granted Patents = 2

Forward Citations = 20

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9 inventors (with patents filed for the assignee):

Nobuyuki Otomo (2 out of 2 patents)

Shinji Yamada (1 out of 41 patents)

Makoto Arakawa (1 out of 5 patents)

4. Kozo Suzuki (1 out of 5 patents)

5. Toshiki Aono (1 out of 1 patent)

6. Tsuneo Uno (1 out of 1 patent)

7. Hiroaki Chiba (1 out of 1 patent)

8. Keiichi Tsuchihashi (1 out of 1 patent)

9. Osamu Aizawa (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4620995 - Surface coated gasket sheet (1986-11-04),

2. 4605236 - Cylinder head gasket construction (1986-08-12),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#4,058 in Tokyo

#10,966 in Japan

Marusan Packing Manufacturing Co.

Forward Citations = 20

9 inventors:

Nobuyuki Otomo (2 out of 2 patents)

Shinji Yamada (1 out of 41 patents)

Makoto Arakawa (1 out of 5 patents)

4. Kozo Suzuki (1 out of 5 patents)

5. Toshiki Aono (1 out of 1 patent)

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