Inventor
OJIMA SEISHI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “OJIMA SEISHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINOLTA CO LTD
12 patentsUS5780196AJul 14, 1998
Toner and liquid developer, liquid developer, and method of producing same
MINOLTA CO LTD24 citations92
US5504559AApr 2, 1996
Method for image formation
MINOLTA CO LTD24 citations92
US5504560AApr 2, 1996
Photosensitive member-protective shutter
MINOLTA CO LTD28 citations89
US5953566ASep 14, 1999
Color image forming method and apparatus providing for efficient toner transfer based on toner zeta potentials
MINOLTA CO LTD18 citations84
US6146804ANov 14, 2000
Electrophotographic liquid developer and image forming apparatus
MINOLTA CO LTD10 citations74
US5981134ANov 9, 1999
Liquid developer for electrophotography
MINOLTA CO LTD15 citations74
US5981133ANov 9, 1999
Liquid developer and image forming apparatus
MINOLTA CO LTD14 citations74
US5572294ANov 5, 1996
Contact charger and image forming apparatus provided with same
MINOLTA CO LTD7 citations73
US6991885B2Jan 31, 2006
Non-magnetic one-component toner, non-magnetic one-component contact developing device and image-forming apparatus
MINOLTA CO LTD5 citations63
US5557372ASep 17, 1996
Contact charger and image forming apparatus provided with same
MINOLTA CO LTD3 citations63
US5774169AJun 30, 1998
Image forming apparatus
MINOLTA CO LTD5 citations62
US6728194B1Apr 27, 2004
Optical recording medium, method of making the same and optical memory device using the optical memory medium
MINOLTA CO LTD0 citations40
KYOCERA DOCUMENT SOLUTIONS INC
6 patentsUS10018932B1Jul 10, 2018
Electrostatic latent image developing toner
KYOCERA DOCUMENT SOLUTIONS INC2 citations73
US10007202B2Jun 26, 2018
Positively chargeable toner
KYOCERA DOCUMENT SOLUTIONS INC0 citations52
US9535352B2Jan 3, 2017
Electrostatic latent image developing toner and manufacturing method of the same
KYOCERA DOCUMENT SOLUTIONS INC1 citations52
US9250551B2Feb 2, 2016
Method for manufacturing electrostatic latent image developing toner
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US10126669B2Nov 13, 2018
Electrostatic latent image developing toner
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
US9436109B2Sep 6, 2016
Method of manufacturing resin particles, apparatus for manufacturing resin particles, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
MINOLTA CAMERA KK
5 patentsUS5242776ASep 7, 1993
Organic photosensitive member having fine irregularities on its surface
MINOLTA CAMERA KK36 citations93
US5242773ASep 7, 1993
Photosensitive member having fine cracks in surface protective layer
MINOLTA CAMERA KK18 citations82
US5623716AApr 22, 1997
Process for image forming using a photosensitive member having an amorphous carbon layer as an outermost surface layer
MINOLTA CAMERA KK5 citations63
US5536610AJul 16, 1996
Photosensitive member having surface protective layer with specified optical properties
MINOLTA CAMERA KK6 citations60
US5155002AOct 13, 1992
Image forming method
MINOLTA CAMERA KK0 citations42
KONICA MINOLTA BUSINESS TECH
3 patentsUS7476481B2Jan 13, 2009
Electrostatic charge image developing toner and production process for the same
KONICA MINOLTA BUSINESS TECH4 citations61
US7465526B2Dec 16, 2008
Electrostatic latent image developing toner
KONICA MINOLTA BUSINESS TECH0 citations51
US7175959B2Feb 13, 2007
Toner and production process for the same
KONICA MINOLTA BUSINESS TECH0 citations51