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Yokohama, Japan

Masao Hoshikawa

USPTO Granted Patents = 5

Average Co-Inventor Count = 4.1

ph-index = 4

Forward Citations = 60(Granted Patents)

Location History:

Yokohama City, JP (1978)
Yokohama, JA (1978)
Yokohama, JP (1987 - 1989)

Company Filing History:

5 out of 10,273

Sumitomo Electric Industries, Limited

Years Active: 1978-1989

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4804393 - Methods for producing optical fiber preform and optical fiber (1989-02-14),

2. 4693738 - Method for producing glass preform for optical fiber (1987-09-15),

3. 4123483 - Manufacturing method of an optical waveguide (1978-10-31),

4. 4097119 - Optical fiber cable (1978-06-27),

5. 4088388 - O-Type optical waveguide (1978-05-09),

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