Inventor
Hiroshi Hosokawa
Inventor
Kanagawa, JP
Overview
Patents· 139 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography45%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy3%
H01LSemiconductor devices3%
H10DInorganic electric semiconductor devices3%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
H04NPictorial communication, e.g. television2%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers1%
PatentTitleYear
10,809,648Powder container202010,697,358Intake passage structure for turbocharger-equipped engine202010,564,573Powder container and image forming apparatus202010,534,290Powder container202010,474,062Powder container and image forming apparatus201910,466,623Powder container, powder supply device and image forming apparatus201910,435,553Resin composition, molded article and film including vinylidene fluoride-based resin201910,295,931Developing device, and image forming apparatus and process cartridge incorporating same201910,281,843Powder container, powder supply device and image forming apparatus201910,156,810Powder container and image forming apparatus201810,088,776Developing device, and image forming apparatus and process cartridge incorporating same201810,074,648Method of manufacturing semiconductor device201810,042,288Image forming apparatus capable of effectively developing images201810,031,441Developing device, and image forming apparatus and process cartridge incorporating same20189,983,509Powder container, powder supply device and image forming apparatus20189,964,009Oil supply system for engine20189,817,335'Powder amount detector, powder supply device, and image forming apparatus incorporating same'20179,740,139'Powder container including a container portion to be engaged with a powder replenishing device'20179,666,704'Semiconductor device'20179,581,937'Powder container and image forming apparatus'20179,547,258'Powder container, powder supply device and image forming apparatus'20179,536,961'Reverse conducting insulated gate bipolar transistor'20179,523,940'Powder detector, developing device, process cartridge, image forming apparatus, and powder detecting method'20169,523,664'Powder detector, image forming apparatus including same, and powder detecting method'20169,520,487'Reverse conducting insulated gate bipolar transistor'20169,513,576'Powder container'20169,507,290'Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor'20169,507,291'Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor'20169,482,988'Powder container and image forming apparatus'20169,482,987'Powder container, powder supply device and image forming apparatus'20169,437,700'Semiconductor device'20169,423,720'Powder container and image forming apparatus'20169,405,226'Image forming apparatus capable of effectively developing images'20169,405,221'Powder container and image forming apparatus incorporating same'20169,348,259'Toner housing container and image forming apparatus'20169,285,763'Cap, powder container, developer supply device, and image forming apparatus'20169,261,817'Replenishing developer housing container and image forming apparatus'20169,244,379'Powder container and image forming apparatus incorporating same'20169,246,366'Automotive rotary electric machine and winding assembly manufacturing method that is used therefor'20169,225,001'Prismatic secondary battery'20159,182,705'Image forming apparatus capable of effectively developing images'20159,170,233'Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor'20159,152,084'Toner housing container and image forming apparatus'20159,153,576'Semiconductor device'20159,141,031'Toner housing container and image forming apparatus'20159,069,288'Toner housing container and image forming apparatus'20158,971,769'Development device including a removable seal to seal a supplied-developer and/or a collected-developer communicating area'20158,965,250'Cap, powder container, developer supply device, and image forming apparatus'20158,934,813'Image-forming apparatus and powder container'20158,886,095'Powder container, powder supply device and image-forming apparatus'20148,845,904'Method for operating ion exchange equipment'20148,798,507'Image forming apparatus capable of effectively developing images'20148,750,752'Development device including a removable seal to seal a supplied-developer and/or a collected-developer communicating area'20148,720,406'Engine with vibration suppression structure'20148,649,714'Development device, process cartridge, and image forming apparatus including same'20148,626,037'Powder container having an opening on an end of the container body, the opening facing the longitudinal direction of the container'20148,571,449'Development device, process cartridge, and image forming apparatus'20138,433,224'Development device, process cartridge including same, and image forming apparatus including same'20138,399,804'Method for manufacturing prismatic battery, and laser welding jig and laser welding device for manufacturing the same'20138,326,184'Development device and image forming apparatus'20128,295,742'Powder container, powder supplying device, and image forming apparatus'20128,195,070'Developer container, developer supplying device, and image forming apparatus'20128,005,406'Developer container, developer supplying device, and image forming apparatus'20117,957,678'Image forming apparatus capable of effectively developing images'20117,953,362'Image forming apparatus, process cartridge, and lubricant applicator'20117,943,253'Sealed battery and manufacturing method therefor'20117,835,673'Developer container, developer supplying device, and image forming apparatus'20107,697,870'Developer container, developer supplying device, and image forming apparatus'20107,680,429'Charging device including charging roller and cleaning roller'20107,650,101'Image forming apparatus capable of effectively developing images'20107,603,053'Image forming apparatus'20097,542,712'Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge'20097,519,317'Developer container, developer supplying device, and image forming apparatus'20097,483,648'Process cartridge and image forming apparatus using the same'20097,480,476'Developer container, developer supplying device, and image forming apparatus'20097,477,862'Charged device, cleaning device, process cartridge, toner, and image-forming device that uses these'20097,470,487'Battery and battery manufacturing method'20087,460,810'Image forming apparatus having a cleaning roller for a charging roller of the apparatus'20087,433,615'Method of and image forming apparatus for controlling a light exposure condition'20087,428,393'Developing device, process cartridge, device unit, and image forming apparatus having a sealing member'20087,398,038'Image forming apparatus using a toner container and a process cartridge'20087,343,132'Image forming apparatus and process cartridge including sealable lubricating device'20087,321,744'Developer container, developer supplying device, and image forming apparatus'20087,305,203'Image forming apparatus including a process cartridge formed with a hole'20077,212,767'Image forming apparatus and process cartridge removably mounted thereto'20077,136,610'Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself'20067,106,991'Process cartridge smoothly and stably attached to and detached from an image forming apparatus, and an image forming apparatus including the process cartridge'20067,076,192'Powder conveying device and image forming apparatus using the same'20067,024,133'Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself'20067,003,255'Image forming apparatus and process cartridge'20066,960,857'Stator for an alternator and method for the manufacture thereof'20056,920,593'Logical verification apparatus and method for memory control circuit'20056,843,811'Method of manufacturing sealed battery and sealed battery'20056,606,024'Electronic authentication method and system therefor'20036,573,001'Method of manufacturing enclosed battery and enclosed battery'20036,560,431'Toner replenishing device and image forming apparatus using the same'20036,551,705'Chitosan-containing acrylic fibers and process for preparing the same'20036,524,508'Process of making chitosan-containing acrylic fibers'20036,379,839'Battery having welded lead plate'20026,309,057'Ink-jet type recording head'20016,249,661'Device for supporting an image carrier included in an image forming apparatus'20016,212,343'Developing device, process cartridge and image forming apparatus that prevent toner leakage'20016,163,666'Process cartridge and an image forming apparatus using the same process cartridge and a method of manufacturing the same process cartridge'2000D0433441'Toner cartridge'20006,060,699'Electrode structure for high temperature heated body'20006,033,818'Developing device for an image forming apparatus'20005,930,561'Process cartridge and image-formation device suitable for miniaturization'19995,896,150'Ink-jet type recording head'19995,879,752'Method of coating a toner conveyor roller'19995,853,853'Flat filaments provided with ribs and raw fibers for pile fabrics'19985,845,183'Developing device for an image forming apparatus'19985,826,144'Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller'19985,819,145'Image forming device for forming a uniform toner layer on a developing roller'19985,768,665'Image forming apparatus with bias control to prevent undesirable toner deposition'19985,708,942'Developing device for an image forming apparatus'19985,697,026'Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships'19975,689,782'Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers'19975,666,625'Device for electrostatically developing a latent image on an image carrier'19975,627,630'Developing apparatus having a toner supporting roller with an inner layer and surface layer'19975,625,441'Developing device for an image forming apparatus'19975,625,438'Toner, and devices for electrostatically depositing a uniform application thereof'19975,625,440'Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering'19975,617,191'Toner conveyor roller and image forming apparatus having the same'19975,610,693'Developing device for an image forming apparatus'19975,580,473'Methods of removing semiconductor film with energy beams'19965,552,870'Developing device for an image forming apparatus'19965,489,747'Developing device for an image forming apparatus'19965,486,909'Developing device for an image forming apparatus'19965,482,265'Sheet feeder for an image forming apparatus'19965,428,961'Micromachines'19955,413,959'Method of modifying transparent conductive oxide film including method of manufacturing photovoltaic device'19955,215,820'Metal-electroconductive polymer composite fine particles and method for preparing same'19935,154,740'Membranous gas separator'19925,068,746'Image processing apparatus'19915,045,357'Process for preparing a membranous gas separator'19914,981,525'Photovoltaic device'19914,878,125'Method and apparatus for image processing with fed-back error correction'19894,876,610'Image processing apparatus with binarization-error dispersal'19894,875,063'Electrostatic recording apparatus'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2010Patents assigned to RICOH KK (48)· patent assignee history
1989–2019Based in Yokohama, JP· patent location history
1993–2020Based in Hiroshima, JP· patent location history
1995–2015Based in Moriguchi, JP· patent location history
1999–2020Based in Kanagawa, JP· patent location history
2000–2020Patents assigned to RICOH CO LTD (53)· patent assignee history
2012–2019Patents assigned to HOSOKAWA HIROSHI (42)· patent assignee history
2012–2019Patents assigned to KAI TSUKURU (16)· patent assignee history
2012–2019Patents assigned to HAYAKAWA TADASHI (13)· patent assignee history
2015–2018Based in Toyota, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 53 | 2000–2020 |
| RICOH KK | 48 | 1989–2010 |
| HOSOKAWA HIROSHIself | 42 | 2012–2019 |
| KAI TSUKURU | 16 | 2012–2019 |
| HAYAKAWA TADASHI | 13 | 2012–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 60 | 1999–2020 |
| Yokohama, JP | 45 | 1989–2019 |
| Moriguchi, JP | 7 | 1995–2015 |
| Toyota, JP | 6 | 2015–2018 |
| Hiroshima, JP | 5 | 1993–2020 |