Inventor
Minoru Umeda
Inventor
Numazu, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography38%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy14%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution14%
A61CDentistry5%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
C22CAlloys5%
C23CCoating metallic material5%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals5%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
PatentTitleYear
9,954,239Solid polymer power generation or electrolysis method and system20188,586,270'Electrophotographic photoconductor, electrophotographic method, and electrophotographic apparatus'20137,972,743'Membrane electrode assembly, method for producing the same, and solid state polymer fuel cell'20117,960,070'Electrocatalyst for ethanol oxidation and direct ethanol fuel cell using the same'20117,121,826'Method of manufacturing an orthodontic model, and an orthodontic model produced thereby'20066,590,696'Image display medium and image display device using the image display medium'20036,521,386'Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptor'20035,804,343'Electrophotographic photoconductor'19985,749,029'Electrophotographic process and apparatus therefor'19985,677,094'Electrophotographic photoconductor'19975,547,790'Electrophotographic photoconductor containing polymeric charge transporting material in charge generating and transporting layers'19964,863,822'Electrophotographic photoconductor comprising charge generating and transport layers containing adjuvants'19894,822,705'Electrophotographic photoconductor with layer preventing charge injection'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2003Patents assigned to RICOH KK (8)· patent assignee history
1989–1998Based in Numazu, JP· patent location history
2003Based in Shizuoka, JP· patent location history
2006–2013Patents assigned to UMEDA MINORU (2)· patent assignee history
2006Based in Sao Paulo, BR· patent location history
2011–2013Patents assigned to RICOH CO LTD (2)· patent assignee history
2011–2018Based in Nagaoka, JP· patent location history
2011–2013Based in Niigata, JP· patent location history
2013Patents assigned to ARAI RYOTA (1)· patent assignee history
2018Patents assigned to JAPAN AEROSPACE EXPLORATION (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 8 | 1989–2003 |
| RICOH CO LTD | 2 | 2011–2013 |
| UMEDA MINORUself | 2 | 2006–2013 |
| ARAI RYOTA | 1 | 2013 |
| JAPAN AEROSPACE EXPLORATION | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Numazu, JP | 6 | 1989–1998 |
| Nagaoka, JP | 2 | 2011–2018 |
| Niigata, JP | 2 | 2011–2013 |
| Shizuoka, JP | 2 | 2003 |
| Sao Paulo, BR | 1 | 2006 |