Company Filing History:

4 out of 220

Toa Nenryo Kogyo Kabushiki Kaisha

patents

Years Active: 1977-1989

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4822587 - High modulus pitch-based carbon fiber and method for preparing same (1989-04-18),

2. 4655902 - Optically anisotropic carbonaceous pitch (1987-04-07),

3. 4601813 - Process for producing optically anisotropic carbonaceous pitch (1986-07-22),

4. 4020012 - Method for preparing hydrocarbon conversion catalyst (1977-04-26),

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Tomio Nomura

Location History:

Company Filing History:

Years Active: 1977-1989