Inventor
Kazuhiro Okubo
Inventor
Kawasaki, JP
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography92%
G06FElectric digital data processing8%
PatentTitleYear
10,866,533Image forming apparatus202010,712,698Image forming apparatus202010,571,823Image forming apparatus having recovery of toner by developing member, control of charging voltage and charging member cleaning operation202010,558,138Image forming apparatus202010,539,906Image forming apparatus to acquire image bearing member surface potentials202010,429,766Developing apparatus having a large capacity toner storage chamber, and image forming apparatus201910,295,926Image forming apparatus201910,254,694Image forming apparatus201910,078,291Developing apparatus having a projecting regulating member and process cartridge20189,996,026Developing apparatus having a large capacity toner storage chamber, and image forming apparatus20189,268,251'Image forming apparatus'20168,718,499'Image forming apparatus'20148,472,823'Image forming apparatus featuring a control device for controlling a developer discharge operation in first and second modes'20138,428,477'Image forming apparatus'20137,580,654'Image forming apparatus featuring discharge prevention in a transfer separation area'20097,286,788'Image forming apparatus'20077,149,437'Image forming apparatus, and control system, cartridge and memory medium for the same apparatus'20067,120,376'Image forming apparatus featuring a four-step image bearing member controller'20067,058,338'Image forming apparatus with reciprocating dispersing feature'20066,963,707'Image forming apparatus including first and second auxiliary residual developer charging features'20056,928,253'Image forming apparatus including toner charging member'20056,922,539'PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS IN WHICH THE CONTACT WIDTH OF A DEVELOPER CHARGER WITH AN IMAGE BEARING MEMBER IS GREATER THAN OR EQUAL TO THE SUM OF THE DEVELOPING WIDTH OF DEVELOPING MEANS AND THE WIDTH OF MOVEMENT OF THE DEVELOPER CHARGER'20056,807,384'Image forming apparatus'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2020Patents assigned to CANON KK (23)· patent assignee history
2004–2007Based in Shizuoka, JP· patent location history
2005Based in Susono, JP· patent location history
2006–2009Based in Mishima, JP· patent location history
2013Patents assigned to HASHIMOTO KAZUNORI (2)· patent assignee history
2013Patents assigned to OKUBO KAZUHIRO (2)· patent assignee history
2013Patents assigned to SHIBATA MASAHIRO (2)· patent assignee history
2013Patents assigned to YAMAUCHI HISASHI (2)· patent assignee history
2013–2014Based in Meridian, ID, US· patent location history
2016–2020Based in Kawasaki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 23 | 2004–2020 |
| HASHIMOTO KAZUNORI | 2 | 2013 |
| OKUBO KAZUHIROself | 2 | 2013 |
| SHIBATA MASAHIRO | 2 | 2013 |
| YAMAUCHI HISASHI | 2 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 11 | 2016–2020 |
| Shizuoka, JP | 6 | 2004–2007 |
| Meridian, ID, US | 3 | 2013–2014 |
| Mishima, JP | 2 | 2006–2009 |
| Susono, JP | 1 | 2005 |