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Kyushu Tetsudo Kiki Seizo Co., Ltd.

USPTO Granted Patents = 1

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Muneyuki Ohara (1 out of 6 patents)

Hirotsugu Oishibashi (1 out of 7 patents)

Katsuyoshi Ueyama (1 out of 4 patents)

4. Mitsuo Nakamura (1 out of 4 patents)

5. Takeo Aichi (1 out of 2 patents)

6. Shigeru Sasaki (1 out of 2 patents)

1 patent: Sort by Forward Citations

1. 4556164 - Method of field welding head-hardened rails (1985-12-03),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#144 in Fukuoka

#15,539 in Japan

Kyushu Tetsudo Kiki Seizo Co., Ltd.

Forward Citations = 2

6 inventors:

Muneyuki Ohara (1 out of 6 patents)

Hirotsugu Oishibashi (1 out of 7 patents)

Katsuyoshi Ueyama (1 out of 4 patents)

4. Mitsuo Nakamura (1 out of 4 patents)

5. Takeo Aichi (1 out of 2 patents)

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