LexDanaLexDanabeta
Inventor

Fumio Ogata

Inventor
Shizuoka, JP

Overview

21→
Patents
1978–2011
Patent span
Physics
Primary field (CPC G)

Patents· 21 as inventor

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

G03Gprimary
G03GElectrography50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
F01LCyclically operating valves for machines or engines6%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers3%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
F02BInternal-combustion piston engines3%
G01RMeasuring electric variables3%
PatentTitleYear
8,068,770'Toner cartridge, image forming apparatus, method of recycling toner cartridge'20117,962,069'Toner container, image forming apparatus, method of recycling toner container'20117,577,379'Toner container, toner supply device and image forming apparatus'20097,505,718'Container, toner container, image forming apparatus, and image forming process'20097,277,665'Toner container configured for toner replenishment through blow system'20077,184,691'Toner container, toner supply device and image forming apparatus'20077,149,462'Container, toner container, image forming apparatus, and image forming process'20067,039,346'Flexible toner container and toner delivery apparatus'20066,837,475'Valve-operating device for engine'20056,678,492'Toner container and toner delivery apparatus'20046,648,218'Powder container, method of assembling the same and image forming apparatus'20036,608,983'Toner container and air stream delivering mechanism'20036,549,744'Powder container for an image forming apparatus and powder discharging device'20036,343,576'Overhead camshaft V-2 engine'20026,336,020'Image forming apparatus having an improved developer-supplying mechanism and method thereof'20026,298,208'Toner container for an image forming apparatus'20016,104,900'Image forming apparatus having an improved developer-supplying mechanism and method thereof'20004,835,567'Paper re-feeding apparatus of image forming apparatus'19894,286,211'Direct current detecting device using saturable reactors'19814,100,434'Gate controlling apparatus for a thyristor valve'19784,084,221'High-voltage thyristor converter'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1981Patents assigned to HITACHI LTD (3)· patent assignee history
1978Based in Hitachi, JP· patent location history
2000–2009Patents assigned to RICOH KK (13)· patent assignee history
2000–2009Based in Fuji, JP· patent location history
2001–2007Based in Shizuoka, JP· patent location history
2002–2005Patents assigned to HONDA MOTOR CO LTD (2)· patent assignee history
2002–2005Based in Wako, JP· patent location history
2011Patents assigned to RICOH CO LTD (2)· patent assignee history
2011Patents assigned to KITA EMI (1)· patent assignee history
2011Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK132000–2009
HITACHI LTD31978–1981
HONDA MOTOR CO LTD22002–2005
RICOH CO LTD22011
KITA EMI12011
Locations
LocationPatentsSpan
Shizuoka, JP72001–2007
Fuji, JP62000–2009
Tokyo, JP22011
Wako, JP22002–2005
Hitachi, JP21978