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Kawasaki, Japan

Sotohiro Tsujihara

This inventor holds 6 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1987-2009.

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 56(Granted Patents)

Location History:

Tokyo, JP (1987)
Kanagawa, JP (1999)
Kawasaki, JP (1999 - 2009)

Company Filing History:

6 out of 28,925

Ricoh Company, Ltd.

Years Active: 1987-2009

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7603055 - Cover for image forming apparatus to facilitate parts recycling (2009-10-13),

2. 6393246 - Fixing device and method having a shield member for cutting off air flowing through gap and image forming apparatus using the same fixing device (2002-05-21),

3. 6080255 - Method of and an apparatus for removing image forming substance from an (2000-06-27),

4. 5968301 - Method of recycling image supporting material and apparatus thereof (1999-10-19),

5. 5897726 - Method of and an apparatus for removing image forming substance from an (1999-04-27),

6. 4692020 - Sheet reversing in copying machine and other sheet-handling machines (1987-09-08),

Profile summary based on public USPTO records.

Please report any incorrect information to [email protected]

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