Company Filing History:

6 out of 42,485

Hitachi, Ltd.

where one patent can have more than one assignee

Years Active: 1988-2005

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6905318 - Compressor including tapered discharged valve and valve seat (2005-06-14),

2. 5591023 - Rotary type compressor (1997-01-07),

3. 5540061 - Refrigerator (1996-07-30),

4. 5494423 - Rotary compressor and blade tip structure (1996-02-27),

5. 5423664 - Iron-base alloy for rotary type compressors (1995-06-13),

6. 4726738 - Motor-driven compressor provided with torque control device (1988-02-23),

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Location History:

Company Filing History:

Years Active: 1988-2005