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Inventor

Susumu Takeyama

Inventor
Tokyo, JP

Overview

2→
Patents
2011–2013
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G03Gprimary
G03GElectrography100%
PatentTitleYear
8,346,134'Developing device and image forming apparatus that include a developer transport amount regulation part'20138,045,893'Developing device and image forming apparatus including inclined transport screw'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2013Patents assigned to RICOH CO LTD (2)· patent assignee history
2011–2013Based in Tokyo, JP· patent location history
2013Patents assigned to FUJINUMA YOSHITAKA (1)· patent assignee history
2013Patents assigned to KUBO TATSUYA (1)· patent assignee history
2013Patents assigned to NAKAYAMA MASAYOSHI (1)· patent assignee history
2013Patents assigned to TAKEYAMA SUSUMU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD22011–2013
FUJINUMA YOSHITAKA12013
KUBO TATSUYA12013
NAKAYAMA MASAYOSHI12013
TAKEYAMA SUSUMUself12013
Locations
LocationPatentsSpan
Tokyo, JP22011–2013