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Yokohama, Japan

Atsushi Sanpe

This inventor holds 7 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1990-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsushi Sanpe. Retrieved from https://idiyas.com/inventor/atsushi-sanpe

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 7

Forward Citations = 227(Granted Patents)

Location History:

Yokohama, JP (1990 - 1997)
Tokyo, JP (1999)
Kanagawa, JP (2000)

Company Filing History:

7 out of 28,957

Ricoh Company, Ltd.

Years Active: 1990-2000

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6026255 - Image forming apparatus (2000-02-15),

2. 5915156 - Image forming apparatus with cleaning blade and enhanced lubrication (1999-06-22),

3. 5663788 - Efficiently removable developing toner in an electrostatic image forming (1997-09-02),

4. 5638158 - Image formation apparatus (1997-06-10),

5. 5614998 - Image forming apparatus having a toner recycling mechanism (1997-03-25),

6. 5386274 - Image forming apparatus having a toner collecting mechanism for removing (1995-01-31),

7. 4969015 - Cleaning device for an electrophotographic apparatus (1990-11-06),

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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