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Inventor

Kiyofumi Usui

Inventor
Suwa, JP

Overview

7→
Patents
1978–2005
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B41Jprimary
B41JTypewriters75%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables25%
PatentTitleYear
6,854,835'Ink cartridge for ink jet printer and method of charging ink into said cartridge'20056,655,779'Judgement on compatibility between ink cartridges and printing apparatus'20036,247,803'Ink jet recording apparatus and method for replenishing ink in the tank cartridge'20016,238,042'Ink cartridge for ink jet printer and method of charging ink into said cartridge'20014,204,180'End of paper roll detection assembly'19804,161,912'Miniature printer'19794,109,843'Web feeding mechanism for compact printer'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1980Patents assigned to EPSON CORP (3)· patent assignee history
1978–1980Based in Shiojiri, JP· patent location history
1979–1980Patents assigned to SUWA SEIKOSHA KK (2)· patent assignee history
2001–2005Patents assigned to SEIKO EPSON CORP (4)· patent assignee history
2001–2005Based in Suwa, JP· patent location history
2003Based in Nagano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP42001–2005
EPSON CORP31978–1980
SUWA SEIKOSHA KK21979–1980
Locations
LocationPatentsSpan
Suwa, JP32001–2005
Shiojiri, JP31978–1980
Nagano, JP12003