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Yokohama, Japan

Hisao Ohtsuga

USPTO Granted Patents = 2

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 60(Granted Patents)

Location History:

Yokohama, JP (1984)
Kanagawa, JP (1987)

Company Filing History:

Tokyo Gas Company Limited

Ashimori Industry Co., Ltd.

where one patent can have more than one assignee

Years Active: 1984-1987

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2 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4684556 - Tubular lining material for pipe line (1987-08-04),

2. 4427480 - Method and apparatus for providing the inner surface of a pipe line with (1984-01-24),

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