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Shoichi Sugiyama

USPTO Granted Patents = 3

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 9(Granted Patents)

Location History:

Gotenba, JP (1993)
Gotemba, JP (2003)

Company Filing History:

3 out of 28,584

Ricoh Company, Ltd.

where one patent can have more than one assignee

Years Active: 1993-2003

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6569590 - Master batch pigment, toner including the master batch pigment and method for manufacturing the toner (2003-05-27),

2. 5219637 - Thermosensitive stencil paper (1993-06-15),

3. 5188881 - Thermosensitive stencil paper (1993-02-23),

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