Inventor
Shintaro Yamada
Inventor
Tokyo, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography69%
H01HElectric switches6%
B23KSoldering or unsoldering3%
C02FTreatment of water, waste water, sewage, or sludge3%
F17CVessels for containing or storing compressed, liquefied or solidified gases3%
F23GCremation furnaces3%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power3%
H04NPictorial communication, e.g. television3%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
10,281,862Image forming apparatus including an image density detector of halftone images201910,263,401Pressure tank, gas insulated switchgear using same, and pressure tank manufacturing method201910,090,126Opening and closing device20189,551,956'Image forming apparatus that utilizes toner roller bias voltages for image density adjustments'20179,201,393'Toner container, process cartridge, and image forming apparatus'20158,354,164'Semiconductive member, and developing roll, charging roll, transfer belt, and image forming apparatus using same'20138,185,025'Device for developing an electrostatic latent image, and process cartridge and image forming apparatus including the same'20128,010,023'Developing device, process cartridge and image forming apparatus'20117,945,195'Developing device having developer regulating member, and image forming apparatus using developing device'20117,890,033'Developing device, process unit, and image forming apparatus which prevents ingrass of the developing agent in the vicinity of the developing member'20117,865,118'Developing device for image forming apparatus and process cartridge having the same'20117,835,652'Image developing method, image developing device, and image forming device'20107,831,182'Developing device, image forming apparatus, and development error detecting method'20107,680,443'Developing device including an advance impeding member and an image forming apparatus using the same'20107,676,184'Developing apparatus'20107,634,213'Toner collecting device, image forming unit and image forming apparatus'20097,460,804'Image forming device having an image detector'20087,227,562'Electrophotograhic apparatus'20077,224,915'Image forming apparatus and image forming unit'20077,215,896'Image forming apparatus and method of detecting the detection characteristics of a reflection density sensor'20077,209,681'Electrophotographic apparatus for forming a color image utilizing LED array exposure devices'20076,895,211'Electrophotographic apparatus'20056,760,553'Electrophotographic cluster printing system with controlled image quality'20046,686,943'Control method of an electrophotographic record apparatus and image formation apparatus including controlling developing bias and photoconductor surface potential'20043,968,756'Method for incineration of a sludge containing chromium substance and apparatus therefor'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2008Based in Ibaraki, JP· patent location history
2005–2008Patents assigned to RICOH PRINTING SYS LTD (6)· patent assignee history
2005–2018Based in Chiyoda-ku, JP· patent location history
2009–2010Patents assigned to RICOH KK (4)· patent assignee history
2009–2019Based in Tokyo, JP· patent location history
2010–2019Patents assigned to RICOH CO LTD (10)· patent assignee history
2011–2013Based in Ikeda, JP· patent location history
2012–2019Patents assigned to YAMADA SHINTARO (5)· patent assignee history
2012–2017Based in Osaka, JP· patent location history
2017–2019Patents assigned to AOKI SHINJI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH CO LTD | 10 | 2010–2019 |
| RICOH PRINTING SYS LTD | 6 | 2005–2008 |
| YAMADA SHINTAROself | 5 | 2012–2019 |
| RICOH KK | 4 | 2009–2010 |
| AOKI SHINJI | 2 | 2017–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 2009–2019 |
| Chiyoda-ku, JP | 5 | 2005–2018 |
| Ibaraki, JP | 4 | 2004–2008 |
| Osaka, JP | 3 | 2012–2017 |
| Ikeda, JP | 2 | 2011–2013 |