Inventor

Koichiro Yokoyama

Inventor

Nagano, JP

Overview

1993–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 24 as inventor

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

B41Jprimary

B41JTypewriters58%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables19%

B22FWorking metallic powder6%

Y10TTechnical subjects covered by former us classification6%

F16HGearing3%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%

H04LTransmission of digital information, e.g. telegraphic communication3%

PatentTitleYear

10,728,165Buffer control apparatus, communication node, and relay apparatus2020 8,337,747'Process for manufacturing composite sintered machine components'2012 8,267,512'Ink-jet recording apparatus and recording method therefor'2012 8,109,628'Ink-jet recording apparatus and recording method therefor'2012 7,947,219'Process for manufacturing composite sintered machine components'2011 7,901,066'Ink-jet recording apparatus and recording method therefor'2011 7,854,503'Ink-jet recording apparatus and recording method therefor'2010 7,669,999'Ink-jet recording apparatus and recording method therefor'2010 7,401,916'Ink-jet recording apparatus and recording method therefor'2008 7,377,633'Ink-jet recording apparatus and recording method therefor'2008 7,296,886'Ink-jet recording apparatus and recording method therefor'2007 7,077,499'Ink-jet recording apparatus and recording method therefor'2006 6,964,466'Ink-jet recording apparatus and recording method thereof'2005 6,850,028'Motor driver and recording apparatus incorporating the same'2005 6,367,994'Power transmission switching device, rocking lever locking device in power transmission switching device and power transmission switching device-applied recording apparatus'2002 6,206,500'Printer having a guide plate for transporting waste ink'2001 6,116,590'Paper size discriminating apparatus'2000 6,053,493'Sheet feeder cassette'2000 5,921,691'Ink jet printer'1999 5,915,863'Ink jet printer'1999 5,785,441'Ink jet printer having paper supports and guides'1998 5,738,348'Sheet feeder'1998 5,221,150'Paper feeding apparatus for printers having a bail roller means'1993 5,199,806'Apparatus for feeding individual sheets of paper as well as continuous fan fold paper utilizing a platen'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2012Patents assigned to SEIKO EPSON CORP (21)· patent assignee history

1993Based in Suwa, JP· patent location history

1998–2012Based in Nagano, JP· patent location history

2011–2012Patents assigned to HITACHI POWDERED METALS (2)· patent assignee history

2011–2012Based in Matsudo, JP· patent location history

2012Patents assigned to YOKOYAMA KOICHIRO (3)· patent assignee history

2012Patents assigned to AKAHANE TAKASHI (1)· patent assignee history

2020Patents assigned to DENSO CORP (1)· patent assignee history

2020Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO EPSON CORP	21	1993–2012
YOKOYAMA KOICHIROself	3	2012
HITACHI POWDERED METALS	2	2011–2012
AKAHANE TAKASHI	1	2012
DENSO CORP	1	2020

Locations

Location	Patents	Span
Nagano, JP	19	1998–2012
Matsudo, JP	2	2011–2012
Suwa, JP	2	1993
Kariya, JP	1	2020