Company Filing History:

5 out of 1,641

Hitachi Chemical Company, Ltd.

patents

Years Active: 1981-1988

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5 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 4751136 - Substrate for high-frequency circuit and process for making the same (1988-06-14),

2. 4400438 - Process for producing fire retardant and heat resistant copper-clad (1983-08-23),

3. 4393188 - Thermosetting prepolymer from polyfunctional maleimide and bis maleimide (1983-07-12),

4. 4346206 - Imide prepolymer from reaction of epoxy compound with bis-imide/diamine (1982-08-24),

5. 4283522 - Process for preparing thermosetting prepolymer from mixture of (1981-08-11),

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Company Filing History:

Years Active: 1981-1988