Rudolph W Hrobsky

20100167191, Jul 1, 2010

Dec 29, 2008

12/344750

David Glenn Black - Longmont CO, US
James Alan Hartman - Broomfield CO, US
Rudolph Wayne Hrobsky - Longmont CO, US
Ronald Harold Levin - Lafayette CO, US
Weimei Luo - Louisville CO, US
Dat Quoc Nguyen - Platteville CO, US
Franklin Dilworth Zartman - Loveland CO, US

G03G 15/02

430 5805, 399159

A photoreceptor comprising a spectral marker and an electrophotographic printer using the same wherein the presence of the spectral marker is detected by the spectral marker detector, which enables photoreceptor authentication and thickness determinations, thereby permitting adjustment and optimization of component operating parameters within the electrophotographic printer.

20220373917, Nov 24, 2022

Aug 3, 2022

17/880128

- LEXINGTON KY, US
RUDOLPH WAYNE HROBSKY - PLATTEVILLE CO, US
JAMES CRAIG MINOR - NIWOT CO, US
DINESH TYAGI - MEAD CO, US

G03G 9/097
G03G 9/087
G03G 9/08

A toner composition having improved toner usage efficiency, wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additive package including a first small silica surface treated with both a silane and an aminosilane having a primary particle size of about 5 nm-20 nm, a second fumed silica having a primary particle size of 30 nm-60 nm, a third silica having a primary particle size of about 70 nm-120 nm, an electro-conductive titania having a primary particle size of 30 nm-60 nm and an acicular titania having a size of about 1.6 μm to 1.7 μm in length and about 130 nm in diameter. An alternative embodiment of the extra particulate additive package does not include a third silica having a primary particle size of about 70 nm-120 nm.

20220197170, Jun 23, 2022

Dec 22, 2020

17/130481

- LEXINGTON KY, US
RUDOLPH WAYNE HROBSKY - Platteville CO, US
JAMES CRAIG MINOR - Niwot CO, US
DINESH TYAGI - Mead CO, US

G03G 9/097
G03G 9/087
G03G 9/08

A toner composition having improved toner usage efficiency, wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additive package including a first small silica surface treated with both a silane and an aminosilane having a primary particle size of about 5 nm-20 nm, a second fumed silica having a primary particle size of 30 nm-60 nm, a third silica having a primary particle size of about 70 nm-120 nm, an electro-conductive titania having a primary particle size of 30 nm-60 nm and an acicular titania having a size of about 1.6 μm to 1.7 μm in length and about 130 nm in diameter. An alternative embodiment of the extra particulate additive package does not include a third silica having a primary particle size of about 70 nm-120 nm.

20220197171, Jun 23, 2022

Mar 16, 2021

17/202586

- LEXINGTON KY, US
RUDOLPH WAYNE HROBSKY - PLATTEVILLE CO, US
JAMES CRAIG MINOR - NIWOT CO, US
DINESH TYAGI - MEAD CO, US

G03G 9/097
G03G 9/08
G03G 9/087

A toner composition having improved toner usage efficiency, wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additive package including a first small silica surface treated with both a silane and an aminosilane having a primary particle size of about 5 nm-20 nm, a second fumed silica having a primary particle size of 30 nm-60 nm, a third silica having a primary particle size of about 70 nm-120 nm, an electro-conductive titania having a primary particle size of 30 nm-60 nm and an acicular titania having a size of about 1.6 μm to 1.7 μm in length and about 130 nm in diameter. An alternative embodiment of the extra particulate additive package does not include a third silica having a primary particle size of about 70 nm-120 nm.

20220197172, Jun 23, 2022

Mar 16, 2021

17/202599

- LEXINGTON KY, US
RUDOLPH WAYNE HROBSKY - PLATTEVILLE CO, US
JAMES CRAIG MINOR - NIWOT CO, US
DINESH TYAGI - MEAD CO, US

G03G 9/097
G03G 9/08
G03G 9/087

A toner composition having improved toner usage efficiency, wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additive package including a first small silica surface treated with both a silane and an aminosilane having a primary particle size of about 5 nm-20 nm, a second fumed silica having a primary particle size of 30 nm-60 nm, a third silica having a primary particle size of about 70 nm-120 nm, an electro-conductive titania having a primary particle size of 30 nm-60 nm and an acicular titania having a size of about 1.6 μm to 1.7 μm in length and about 130 nm in diameter. An alternative embodiment of the extra particulate additive package does not include a third silica having a primary particle size of about 70 nm-120 nm.

20220197173, Jun 23, 2022

Mar 16, 2021

17/202617

- Lexington KY, US
RUDOLPH WAYNE HROBSKY - PLATTEVILLE CO, US
JAMES CRAIG MINOR - NIWOT CO, US
DINESH TYAGI - MEAD CO, US

G03G 9/097
G03G 9/08
G03G 9/087

A toner composition having improved toner usage efficiency, wherein toner particles having an average size range of 1-25 μm may be mixed with an extra particulate additive package including a first small silica surface treated with both a silane and an aminosilane having a primary particle size of about 5 nm-20 nm, a second fumed silica having a primary particle size of 30 nm-60 nm, a third silica having a primary particle size of about 70 nm-120 nm, an electro-conductive titania having a primary particle size of 30 nm-60 nm and an acicular titania having a size of about 1.6 μm to 1.7 μm in length and about 130 nm in diameter. An alternative embodiment of the extra particulate additive package does not include a third silica having a primary particle size of about 70 nm-120 nm.

20190384199, Dec 19, 2019

Jun 14, 2019

16/441502

- Lexington KY, US
Rudolph Wayne Hrobsky - Platteville CO, US
Michael Gordon Miller - Longmont CO, US
James Craig Minor - Niwot CO, US
Dinesh Tyagi - Mead CO, US

G03G 9/087
G03G 9/09

A toner composition includes low and high molecular weight polyester resins. It also includes a release agent, such as a polyolefin wax, and a tri-block copolymer having a structure of the form A-b-B-b-A, wherein A is a hard block and B is a soft block. The hard block is styrene, while the soft block is butadiene/butylene. Upon partial hydrogenation, the copolymer provides improved dispersion, mobility control, and domain size of the release agent.