Inventor

Tomoyoshi Yamazaki

Inventor

Tokyo, JP

Overview

2002–2017

Patent span

Performing operations

Primary field (CPC B)

Patents· 34 as inventor

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

B65Hprimary

B65HHandling thin or filamentary material, e.g. sheets, webs, cables45%

G03GElectrography42%

B41JTypewriters8%

B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%

H04NPictorial communication, e.g. television2%

LOC162%

PatentTitleYear

9,769,327'Image forming apparatus and method of positional adjustment in image formation'2017 9,187,280'Sheet feeding device, control method for the sheet feeding device, and image forming apparatus incorporating the sheet feeding device'2015 8,873,989'Fixing device and image forming apparatus incorporating same'2014 8,851,471'Image forming apparatus and sheet adjusting device incorporated therein'2014 8,807,552'Image forming apparatus, optional sheet feeder, and base plate member'2014 8,798,517'Sheet supplying device and image forming apparatus incorporating same'2014 8,783,440'Sheet member position correcting device and image forming apparatus'2014 8,752,824'Sheet inverting device and image forming apparatus incorporating same'2014 8,678,371'Manual sheet-feeding device and image forming apparatus'2014 8,666,297'Image forming apparatus which determines whether a sheet stacking unit is full'2014 8,505,913'Sheet transport mechanism and electrophotographic image forming apparatus incorporating same'2013 8,465,015'Image forming apparatus and control method therefor'2013 8,413,982'Conveyer and image forming apparatus including the same'2013 8,417,174'Sheet feeding device and image forming apparatus incorporating same'2013 8,340,564'Sheet thickness detector and image forming apparatus using same'2012 8,322,718'Recording medium conveyer capable of effectively conveying recording medium of various types'2012 8,320,798'Sheet conveying device and image forming apparatus'2012 8,256,769'Feeding device and image forming apparatus'2012 8,260,187'Image forming device'2012 8,240,657'Sheet feeding device and image forming apparatus'2012 8,087,666'Sheet discharge device and image forming apparatus'2012 8,070,159'Switchback mechanism and image forming apparatus'2011 8,045,888'Sheet conveying device and image forming apparatus'2011 7,992,860'Sheet feeding device, image forming apparatus, and sheet feeding method'2011 7,963,520'Sheet loading device, sheet conveying device, and image forming apparatus'2011 7,954,814'Feeding device and image forming apparatus'2011 7,918,451'Switchback mechanism and image forming apparatus'2011 7,900,917'Recording medium conveyer capable of effectively conveying recording medium of various types'2011 7,878,725'Image forming apparatus having removable units'2011 7,869,750'Image forming apparatus with a phase of a first load torque substantially opposite to a phase of a second load torque'2011 7,784,780'Manual sheet-feeding device and image forming apparatus'2010 7,731,182'Sliding mechanism, sheet guide, sheet loading device, and image forming apparatus'2010 7,677,555'Sheet conveying apparatus and image forming apparatus with vibration applying unit'2010 D0463818'Developer bottle'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2014Based in Ibaraki, JP· patent location history

2010–2017Based in Tokyo, JP· patent location history

2010–2014Based in Osaka, JP· patent location history

2011–2017Patents assigned to RICOH CO LTD (30)· patent assignee history

2011–2017Patents assigned to YAMAZAKI TOMOYOSHI (22)· patent assignee history

2011–2015Patents assigned to HONDA HARUYUKI (17)· patent assignee history

2011–2015Patents assigned to FUJIWARA HIROSHI (16)· patent assignee history

2011–2015Patents assigned to NISHII TOSHIKANE (16)· patent assignee history

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

2011Based in Kariya, Aichi-pref., JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH CO LTD	30	2011–2017
YAMAZAKI TOMOYOSHIself	22	2011–2017
HONDA HARUYUKI	17	2011–2015
FUJIWARA HIROSHI	16	2011–2015
NISHII TOSHIKANE	16	2011–2015

Locations

Location	Patents	Span
Tokyo, JP	11	2010–2017
Osaka, JP	11	2010–2014
Ibaraki, JP	5	2002–2014
Minoo, JP	3	2011–2012
Kariya, Aichi-pref., JP	2	2011