For the Inventor, By the Inventor

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Nippon Hume Pipe Company Limited

USPTO Granted Patents = 3

Forward Citations = 20

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6 inventors (with patents filed for the assignee):

Hideo Iida (2 out of 2 patents)

Akira Hagiwara (1 out of 52 patents)

Yoshiaki Ishii (1 out of 7 patents)

4. Tsuneto Takaso (1 out of 1 patent)

5. Yoshifumi Takahashi (1 out of 1 patent)

6. Yasuhiro Shinoda (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4822211 - Method and apparatus for laying cable in a pipe (1989-04-18),

2. 4113823 - Method of manufacturing prestressed concrete pipe (1978-09-12),

3. 3982565 - Prestressed concrete pipe (1976-09-28),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#3,260 in Tokyo

#8,767 in Japan

Nippon Hume Pipe Company Limited

Forward Citations = 20

6 inventors:

Hideo Iida (2 out of 2 patents)

Akira Hagiwara (1 out of 52 patents)

Yoshiaki Ishii (1 out of 7 patents)

4. Tsuneto Takaso (1 out of 1 patent)

5. Yoshifumi Takahashi (1 out of 1 patent)

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