Hirotsugu Oba

7389073, Jun 17, 2008

Mar 29, 2006

11/391837

Ajay Kumar - Fairport NY, US
Keith Allan Nau - Webster NY, US
David Antwone Reed - Rochester NY, US
Hirotsugu Oba - Webster NY, US

Xerox Corporation - Stamford CT

G03G 15/09

399269, 399276, 4301221

A development station in an electrostatographic imaging machine supports longer operational life without undue variation in the mass of developer on roll parameter. The development station includes a developer housing, for retaining a quantity of developer having semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll to transport developer to a photoreceptor, a second magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the second magnetic roll to receive developer from the first magnetic roll and present the developer to the photoreceptor, the sleeve of the second magnetic roll being fabricated from a material that is softer than the sleeve of the first magnetic roll.

7532830, May 12, 2009

Jul 31, 2006

11/496646

Ajay Kumar - Fairport NY, US
Hirotsugu Oba - Webster NY, US
Keith Allan Nau - Webster NY, US
David Antwone Reed - Rochester NY, US
Cory Joseph Winters - Rochester NY, US
Michael Donald Thompson - Rochester NY, US
Allen T. Retzlaff - Rochester NY, US
Jennifer Rea Wagner - Ontario NY, US
Rasin Moser - Fairport NY, US
Song Feng Mo - Webster NY, US
Rachael L. McGrath - Churchville NY, US
John Franklyn Knapp - Fairport NY, US

Xerox Corporation - Norwalk CT

G03G 15/09

399 44, 399 55, 399269, 399270

A development station that improves toner halftone dot development over a wide range of environmental conditions includes a developer housing for retaining semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the second magnetic roll, an environmental sensor for generating an environmental condition signal, a variable voltage supply coupled to the first magnetic roll and the second magnetic roll, and a control circuit for adjusting an output level for the variable voltage supply.

20060239710, Oct 26, 2006

Apr 26, 2005

11/114496

Ajay Kumar - Fairport NY, US
Keith Nau - Webster NY, US
Hirotsugu Oba - Webster NY, US
Jonathan Sadik - Rochester NY, US
David Reed - Rochester NY, US

G03G 15/08

399103000

A seal device for a developer system in an electrophotographic printing machine, including: a developer housing containing toner particles; a donor member rotatably mounted in the housing for transferring toner particles to a latent image on a photoreceptive member moving in a process direction; a toner emission system for collecting toner particles with a vacuum; and a seal member, mounted to each end of the housing and in contact with the photoreceptive member, to retain side ways migrating toner particles from escaping each end of the housing thereby substantially reducing toner particles from being emitted past the housing.

20070292166, Dec 20, 2007

Jun 15, 2006

11/453636

Ajay Kumar - Fairport NY, US
Keith Allan Nau - Webster NY, US
David A. Reed - Rochester NY, US
Hirotsugu Oba - Webster NY, US
Jonathan David Sadik - Rochester NY, US
Richard L. Kjar - Penn Yan NY, US

Xerox Corporation - Stamford CT

G03G 15/09

399269

A development station in an electrostatographic imaging machine impedes the flow of carrier particles out of the development station as the developer moves from an upper to a lower magnetic roll. The development station includes a developer housing, for retaining a quantity of developer having semi-conductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the first magnetic roll to present developer on one side of the first magnetic roll to the photoreceptor, a second magnetic roll having a stationary core with at least one magnet and a sleeve having longitudinal grooves that rotates about the stationary core of the second magnetic roll to receive developer from the first magnetic roll and present developer on one side of the second magnetic roll to the photoreceptor, the second magnetic roll being vertically displaced from the first magnetic roll so that a gap exists between the first and the second magnetic rolls, and a magnetic seal located in the gap between the first and the second magnetic rolls to impede the outflow of carrier particles from the developer moving from the first magnetic roll to the second magnetic roll.

20230116906, Apr 13, 2023

Jun 13, 2022

17/838755

- Cupertino CA, US
Hirotsugu Oba - Sunnyvale CA, US
Tyler S. Atura Bushnell - San Francisco CA, US
Brad G. Boozer - Campbell CA, US
Woojin Jung - San Mateo CA, US

H01M 50/262
H01M 50/247

The disclosed technology relates to a battery pack configured to be structurally mounted to a portable electronic device. The battery pack may comprise an enclosure configured to enclose a plurality of layers. One or more primary brackets may be connected to at least one wall of the enclosure. Each of the one or more primary brackets may be configured to be coupled to a device. The battery pack may be configured to provide at least one component of the device with power when the one or more primary brackets are coupled to the device. A protector may be interposed between at least one of the one or more primary brackets and the at least one wall of the enclosure. The protector may be configured to provide a layer of protection between the at least one primary bracket and the plurality of layers.

20230102315, Mar 30, 2023

Jun 13, 2022

17/838779

- Cupertino CA, US
Hirotsugu Oba - Sunnyvale CA, US
Tyler S. Atura Bushnell - San Francisco CA, US
Brad G. Boozer - Campbell CA, US
Woojin Jung - San Mateo CA, US

H01M 50/262
H02J 7/00
H01M 50/204
H01M 50/231
H01M 50/224
H01M 50/247
H01M 10/0525

The disclosed technology relates to a battery pack configured to be structurally mounted to a portable electronic device. The battery pack comprises a plurality of layers and an enclosure. The enclosure comprises a first surface and a plurality of walls that extend from the first surface in a direction perpendicular to the first surface. A portion of the first surface extends past at least one wall of the plurality of walls. The enclosure comprises a second surface configured to be connected to the plurality of walls to form a body configured to enclose the plurality of layers. The portion of the first surface is configured to be coupled to a device and the battery pack is configured to provide at least one component of the device with power when the portion of the first surface is coupled to the device.

20210091405, Mar 25, 2021

Sep 24, 2019

16/580547

- Cupertino CA, US
Hirotsugu Oba - Sunnyvale CA, US

Apple Inc. - Cupertino CA

H01M 10/0525
H01M 10/0585
H01M 2/16
H01M 4/70
H01M 2/02

Batteries according to embodiments of the present technology may include an electrode stack. The electrode stack may include an anode electrode having an anode current collector, and an anode active material disposed on the anode current collector. The anode electrode may define one or more first apertures through the anode electrode. The electrode stack may also include a cathode electrode having a cathode current collector, and a cathode active material disposed on the cathode current collector. The cathode electrode may define one or more second apertures through the cathode electrode.

20200403210, Dec 24, 2020

May 14, 2020

16/874355

- Cupertino CA, US
Abhishek P. Shiwalkar - Sunnyvale CA, US
Shawn G. Fink - Sunnyvale CA, US
Christopher R. Pasma - Redwood City CA, US
Hirotsugu Oba - Sunnyvale CA, US
Brian K. Shiu - Sunnyvale CA, US

H01M 2/26
H01M 2/06

The disclosed technology relates to an electrical feedthrough for a battery cell. The electrical feedthrough may include a pin configured to form an external battery terminal, an insulator surrounding the pin and configured to electrically isolate the pin, a channel, and a serpentine tab electrically coupled to the pin at a first end. The serpentine tab is nested within the channel to minimize use of space within an enclosure of the battery cell thereby increasing energy capacity of the battery cell by eliminating the need to allot space within the enclosure to accommodate the tab.