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Inventor

Wataru Yasuda

Inventor
Yokohama, JP

Overview

13→
Patents
1985–1998
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography93%
B82YSpecific uses or applications of nanostructures7%
PatentTitleYear
5,749,022'Charging apparatus and method for use in image forming device'19985,678,129'Image forming apparatus with contact type charging member'19975,258,248'Image density control method for an image forming apparatus'19935,028,960'Image density control method for an image forming apparatus'19914,896,625'Developing device'19904,674,439'Developing device'19874,656,964'Developing device'19874,625,676'Developing device'19864,624,545'Developing device with regulated developer supply'19864,575,220'Developing device'19864,564,285'Developing device having dispersed floating electrodes in a dielectric layer'19864,561,381'Voltage-controlled developing device'19854,528,937'Device for forming a developer film'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1998Patents assigned to RICOH KK (13)· patent assignee history
1985–1993Based in Yokohama, JP· patent location history
1997–1998Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK131985–1998
Locations
LocationPatentsSpan
Yokohama, JP111985–1993
Tokyo, JP21997–1998