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Inventor

Hitoshi Fujiwara

Inventor
Osaka, JP

Overview

44→
Patents
1982–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 44 as inventor

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

B41Jprimary
B41JTypewriters18%
G03GElectrography18%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers10%
Y02TClimate change mitigation technologies related to transportation7%
F02CGas-turbine plants4%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants4%
H02KDynamo-electric machines4%
B64DEquipment for fitting in or to aircraft3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
F02KJet-propulsion plants3%
PatentTitleYear
10,697,638Fuel injection device202010,648,671Fuel injection device202010,558,154Image forming apparatus incorporating pressing device202010,132,499Fuel injection device20189,740,147'Separator, fixing device, and image forming apparatus'20179,664,391'Gas turbine combustor'20179,429,891'Fixing device and image forming apparatus'20169,429,324'Fuel injector with radial and axial air inflow'20169,366,442'Pilot fuel injector with swirler'20169,342,044'Fixing device and image forming apparatus and method of assembling the fixing device'20169,261,835'Fixing device and image forming apparatus'20169,182,709'Fixing device, image forming apparatus with same, and method of assembling fixing device'20159,164,435'Fixing device and image forming apparatus'20159,109,553'Fuel injector'20159,104,150'Fixing unit, image forming apparatus incorporating the fixing unit, and image forming method'20159,063,486'Fixing device and image forming apparatus'20159,052,652'Fixing device including a friction reducer and an image forming apparatus including the fixing device'20159,046,843'Fixing device and image forming apparatus'20159,008,559'Fixing device with mechanism capable of heating belt effectively and image forming apparatus incorporating same'20158,579,174'Tag attaching pin attaching apparatus'20138,338,954'Semiconductor apparatus and fabrication method thereof'20127,921,637'High bypass-ratio turbofan jet engine'20117,887,287'Turbofan jet engine'20117,036,925'Printer'20066,987,523'Paper feeder and printer'20066,963,812'Product market quality information analyzing back up apparatus, product market quality information analyzing back up system and program for product market quality information analyzing back up'20056,877,735'Paper sheet managing device and recording system'20056,831,670'Printer'20046,801,822'PRODUCTION MANAGEMENT SYSTEM, CLIENT IN THE PRODUCTION MANAGEMENT SYSTEM, PRODUCTION MANAGEMENT METHOD IN THE PRODUCTION MANAGEMENT SYSTEM, DATA RETRIEVAL METHOD IN THE PRODUCTION MANAGEMENT SYSTEM, AND COMPUTER PRODUCT'20046,626,597'Printer assembly and printer'20036,511,237'Printer assembly and printer'20036,382,851'Printer'20026,270,271'Printer for portable information processor'2001D0439821'Board holder'20016,121,990'Printing apparatus and cartridge'20005,433,913'Method of manufacturing a heat-resistant resinous tube'19954,853,568'Miniature motor'19894,827,167'Miniature motor'19894,823,033'Miniature motor having coated rubber permanent magnet'19894,617,563'Liquid crystal display device'19864,553,865'Ink-supplied wire dot printer'19854,433,925'Manually-operated dot printer for pocket sized calculators'19844,427,314'Speed controlled printer'19844,328,747'Character ring-selecting type printer'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2013Based in Shiojiri, JP· patent location history
2000–2006Based in Nagano, JP· patent location history
2005–2020Based in Tokyo, JP· patent location history
2011–2020Patents assigned to JAPAN AEROSPACE EXPLORATION (9)· patent assignee history
2012–2020Patents assigned to FUJIWARA HITOSHI (15)· patent assignee history
2015–2020Patents assigned to RICOH CO LTD (12)· patent assignee history
2015–2017Patents assigned to ADACHI TOMOYA (9)· patent assignee history
2015–2017Patents assigned to FUJII TOMOHIKO (9)· patent assignee history
2015–2017Based in Osaka, JP· patent location history
2015–2020Based in Chofu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJIWARA HITOSHIself152012–2020
RICOH CO LTD122015–2020
ADACHI TOMOYA92015–2017
FUJII TOMOHIKO92015–2017
JAPAN AEROSPACE EXPLORATION92011–2020
Locations
LocationPatentsSpan
Osaka, JP112015–2017
Shiojiri, JP101982–2013
Chofu, JP62015–2020
Nagano, JP62000–2006
Tokyo, JP42005–2020