Company Filing History:

6 out of 42,485

Hitachi, Ltd.

patents

2 out of 222

Babcock-hitachi Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1984-1999

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5879132 - Stainless steel type 13Cr5Ni having high toughness, and usage of the same (1999-03-09),

2. 5601411 - Stainless steel type 13Cr5Ni having high toughness, and usage the same (1997-02-11),

3. 5030064 - Water turbine and moving blade of water turbine (1991-07-09),

4. 4802894 - Method of using a structural member of anti-sulfur-attack cr-ni-al-si (1989-02-07),

5. 4505232 - Boiler tube (1985-03-19),

6. 4443406 - Heat-resistant and corrosion-resistant weld metal alloy and welded (1984-04-17),

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For the Inventor, By the Inventor

Kenichi Usami

Company Filing History:

Years Active: 1984-1999