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Chiyoda-ku, Japan

Kenko Okamura

USPTO Granted Patents = 3

Average Co-Inventor Count = 10.0

ph-index = 2

Forward Citations = 4(Granted Patents)

Location History:

Tokyo, JP (1997)
Chiyoda-ku, JP (1999 - 2000)

Company Filing History:

Kawasaki Steel Corporation

Tokyo Gas Company Limited

where one patent can have more than one assignee

Years Active: 1997-2000

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6109305 - Double walled pipe, jacking method and pipe end structure of leading pipe (2000-08-29),

2. 6004073 - Double walled pipe, jacking method and pipe end structure of leading pipe (1999-12-21),

3. 5615976 - Double walled pipe, jacking method and pipe end structure of leading pipe (1997-04-01),

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