LexDanaLexDanabeta
Inventor

Manabu Nonaka

Inventor
Kanagawa, JP

Overview

73→
Patents
2001–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 73 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, cables35%
F04DNon-positive-displacement pumps22%
G03GElectrography17%
B41JTypewriters8%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants7%
F01DNon-positive displacement machines or engines, e.g. steam turbines2%
F16CShafts2%
E01BPermanent way1%
F04BPositive-displacement machines for liquids1%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g1%
PatentTitleYear
10,662,957Vacuum exhaust mechanism, compound type vacuum pump, and rotating body part202010,578,158Vacuum pump and abnormality cause estimating method for vacuum pump202010,364,814Vacuum pump201910,280,937Vacuum pump component, siegbahn type exhaust mechanism and compound vacuum pump201910,267,321Stator disk and vacuum pump201910,202,250Image forming apparatus201910,167,148Image forming apparatus and dustproof cover201910,124,970Sheet feeder and image forming apparatus incorporating same201810,008,892IPM motor for vacuum pump20189,879,553'Fixed blade assembly usable in exhaust pump, and exhaust pump provided with same'20189,869,959'Image forming apparatus'20189,856,099'Sheet feeder and image forming apparatus incorporating the sheet feeder'20189,701,499'Sheet feeder, image forming apparatus incorporating the sheet feeder, and method of removing discharge products in the image forming apparatus'20179,625,866'Image forming apparatus'20179,568,879'Image forming apparatus'20179,302,868'Sheet feeder and image forming apparatus incorporating same'20169,290,341'Sheet conveyor and image forming apparatus incorporating same'20169,004,482'Sheet conveyor and image forming apparatus incorporating same'20158,857,809'Sheet separation/conveyance device and image forming apparatus incorporating same'20148,833,755'Sheet feeding device, electrophotographic image forming apparatus incorporating same, and sheet separation method for the apparatus'20148,774,699'Sheet feeder and image forming apparatus'20148,774,691'Image forming apparatus, fixing device, and fixing method'20148,752,821'Image forming apparatus'20148,746,675'Sheet feeder and image forming apparatus incorporating same'20148,690,525'Vacuum pump'20148,628,074'Sheet feeding device and image forming apparatus incorporating same'20148,594,551'Fixing device and image forming apparatus'20138,585,040'Sheet feeder and image forming apparatus using the same'20138,573,586'Sheet feeder and image forming apparatus'20138,523,170'Sheet feeder and image forming apparatus incorporating same'20138,511,668'Sheet feeding device and image forming apparatus incorporating same'20138,480,073'Sheet feeder and image forming apparatus incorporating same'20138,474,811'Sheet feeding device and image forming apparatus incorporating same'20138,439,347'Sheet conveying device and image forming apparatus'20138,424,865'Sheet feeding device and image forming apparatus incorporating same'20138,408,532'Image forming apparatus'20138,342,507'Sheet conveying device and image forming apparatus'20138,302,953'Image forming apparatus'20128,267,394'Sheet feeding device and image forming apparatus incorporating same'20128,177,217'Sheet feeding device and image forming apparatus incorporating same'20128,157,257'Sheet feeding device and electrophotographic image forming apparatus with rotating charged belt'20128,020,851'Sheet supplier and image forming apparatus incorporating same with friction and electrostatic separators with overlapping planes of projection'20118,014,713'Fixing device and image forming apparatus'20117,962,082'Fixing device, image forming apparatus, and fixing method having an expanding/contracting contacting member'20117,758,044'Image forming apparatus, sheet conveying device, and sheet conveying method'20107,731,353'Image forming apparatus'20107,712,892'Image forming apparatus'20107,673,984'Image forming apparatus having a removable output unit'20107,635,123'Image forming apparatus, image forming method, and bypass sheet supplier capable of regulating and supplying recording medium'20097,611,138'Paper feeder and image forming apparatus using the same'20097,572,096'Vacuum pump'20097,515,866'Image forming apparatus'20097,506,948'Image formation apparatus'20097,505,714'Image forming device'20097,445,330'Image forming apparatus'20087,431,422'Head cleaner and image forming apparatus'20087,418,235'Method and apparatus for image forming'20087,367,667'Image forming apparatus with conveying part arranged to allow drying'20086,948,710'Method and apparatus for sheet feeding and image forming apparatus incorporating the same'20056,910,850'Vacuum pump'20056,851,848'Turbo-molecular pump having radiation temperature apparatus'20056,832,888'Molecular pump for forming a vacuum'20046,779,969'Vacuum pump'20046,755,611'Vacuum pump'20046,672,827'Vacuum pump'20046,617,733'Magnetic bearing apparatus and vacuum pump having magnetic bearing apparatus'20036,607,365'Vacuum pump and vacuum apparatus'20036,499,942'Turbomolecular pump and vacuum apparatus'20026,454,524'Vacuum pump and vacuum apparatus'20026,419,444'Screw groove type vacuum pump, complex vacuum pump and vacuum pump system'20026,364,604'Vacuum pump and vacuum apparatus equipped with vacuum pump'20026,315,517'Vacuum pump'20016,290,457'Vacuum pump'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2005Based in Narashino, JP· patent location history
2003–2020Based in Chiba, JP· patent location history
2005–2010Patents assigned to RICOH KK (14)· patent assignee history
2005–2014Based in Chigasaki, JP· patent location history
2008–2019Based in Kanagawa, JP· patent location history
2009–2020Based in Yachiyo, JP· patent location history
2011–2019Patents assigned to RICOH CO LTD (36)· patent assignee history
2012–2019Patents assigned to NONAKA MANABU (35)· patent assignee history
2012–2018Patents assigned to ISHIKAWA YOSHIKUNI (19)· patent assignee history
2014–2020Patents assigned to EDWARDS JAPAN LTD (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD362011–2019
NONAKA MANABUself352012–2019
ISHIKAWA YOSHIKUNI192012–2018
RICOH KK142005–2010
EDWARDS JAPAN LTD82014–2020
Locations
LocationPatentsSpan
Kanagawa, JP372008–2019
Chigasaki, JP122005–2014
Narashino, JP102001–2005
Chiba, JP82003–2020
Yachiyo, JP52009–2020