Eiichi Akiyoshi

This inventor holds 4 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Tokyo Shibaura Denki Kabushiki Kaisha, Nittetu Chemical Engineering Ltd.. Active years: 1986-1996.

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 2

Forward Citations = 15(Granted Patents)

Location History:

Hyogo, JP (1986 - 1987)
Tokyo, JP (1994)
Hyogo-ken, JP (1996)

Company Filing History:

2 out of 53,226

Kabushiki Kaisha Toshiba

patents

2 out of 2,916

Tokyo Shibaura Denki Kabushiki Kaisha

patents

1 out of 14

Nittetu Chemical Engineering Ltd.

patents

where one patent can have more than one assignee

Years Active: 1986-1996

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5532088 - Shadow mask plate material and shadow mask (1996-07-02),

2. 5328670 - Method of treating nickel-containing etching waste fluid (1994-07-12),

3. 4708680 - Color picture tube and method for manufacturing the same (1987-11-24),

4. 4596943 - Shadow mask for a color picture tube (1986-06-24),

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