For the Inventor, By the Inventor

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Sankei Corporation

USPTO Granted Patents = 1

Trademarks = 2

Forward Citations = 9

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6 inventors (with patents filed for the assignee):

Minoru Tayama (1 out of 1 patent)

Masaaki Miki (1 out of 1 patent)

Yasuaki Ishikawa (1 out of 3 patents)

4. Ryoichi Arita (1 out of 1 patent)

5. Kazunori Ueda (1 out of 1 patent)

6. Kiyoshi Tsuchiya (1 out of 5 patents)

1 patent: Sort by Forward Citations

1. 6142577 - Hydraulic muck handling system for tunnel boring machine (2000-11-07),

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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#1,487 in Osaka

#15,549 in Japan

Sankei Corporation

Forward Citations = 9

6 inventors:

Minoru Tayama (1 out of 1 patent)

Masaaki Miki (1 out of 1 patent)

Yasuaki Ishikawa (1 out of 3 patents)

4. Ryoichi Arita (1 out of 1 patent)

5. Kazunori Ueda (1 out of 1 patent)

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