Kevin Cw Dr Chen

US Patent:

7170185, Jan 30, 2007

Filed:

Oct 17, 2000

Appl. No.:

09/690600

Inventors:

Peter B. Hogerton - White Bear Lake MN, US
Kevin Yu Chen - San Diego CA, US
Joel A. Gerber - Orono MN, US
Robert L. D. Zenner - Minneapolis MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01L 23/52
H01L 23/48
H01L 23/40
H01L 23/485
H01L 23/498

US Classification:

257780, 257778, 257738, 257E23021, 257E23069

Abstract:

The present invention relates to a method for connecting an integrated circuit chip to a circuit substrate. The method includes the step of pre-applying adhesive directly to a bumped side of an integrated circuit chip. The method also includes the steps of removing portions of the adhesive from the tips of the solder bumps to expose a contact surface, and pressing the bumped side of the integrated circuit chip, which has previously been coated with adhesive, against the circuit substrate such that the bumps provide an electrical connection between the integrated circuit chip and the circuit substrate. The adhesive is removed from the tips of the solder bumps using a solvent assisted wiping action. The pre-applied adhesive on the chip forms a bond between the integrated circuit chip and the circuit substrate.

US Patent:

8008812, Aug 30, 2011

Filed:

Jul 22, 2010

Appl. No.:

12/841992

Inventors:

Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US
Hsin-Hsiung Chen - Shanghai, CN

Assignee:

Aurora Office Equipment Co., Ltd. - Shanghai

International Classification:

H02H 11/00

US Classification:

307326

Abstract:

The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive.

US Patent:

20070102827, May 10, 2007

Filed:

Jan 8, 2007

Appl. No.:

11/620813

Inventors:

Peter Hogerton - White Bear Lake MN, US
Kevin Chen - San Diego CA, US
Joel Gerber - Orono MN, US
Robert Zenner - Minneapolis MN, US

International Classification:

H01L 23/48
H01L 21/00

US Classification:

257778000, 438108000, 257E21503

Abstract:

The present invention relates to a method for connecting an integrated circuit chip to a circuit substrate. The method includes the step of pre-applying adhesive directly to a bumped side of an integrated circuit chip. The method also includes the steps of removing portions of the adhesive from the tips of the solder bumps to expose a contact surface, and pressing the bumped side of the integrated circuit chip, which has previously been coated with adhesive, against the circuit substrate such that the bumps provide an electrical connection between the integrated circuit chip and the circuit substrate. The adhesive is removed from the tips of the solder bumps using a solvent assisted wiping action. The pre-applied adhesive on the chip forms a bond between the integrated circuit chip and the circuit substrate.

US Patent:

20110133008, Jun 9, 2011

Filed:

Feb 14, 2011

Appl. No.:

13/026868

Inventors:

Liangneng Chen - Tokyo, JP
Hsin-Hsiung Chen - Shanghai, CN
Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US

Assignee:

Aurora Office Equipment Co., Ltd., Shanghai - Shanghai

International Classification:

B02C 23/04

US Classification:

241 36, 241 375

Abstract:

The invention is directed to a permittivity-based paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction bioshield controller. The bioshield controller then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive.

US Patent:

20110316356, Dec 29, 2011

Filed:

Jun 27, 2011

Appl. No.:

13/170119

Inventors:

Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US
Hsin-Hsiung Chen - Shanghai, CN

Assignee:

Aurora Office Equipment Co., Ltd. Shanghai - Shanghai

International Classification:

H02H 11/00

US Classification:

307326

Abstract:

The invention is directed to a touch-sensitive paper shredder control system. The touching feature is implemented through a series of electronic circuits, taking input from a conductive touch panel on the shredder feed throat, processing the signal, and through a motor driving circuit, stopping the mechanical parts of the shredder. The system has a touch detection circuit unit, which contains a bioelectricity controlled switching circuit to sense the conductive touch panel. The bioelectricity controlled switching circuit is configured to trigger a ground switching circuit in the touch detection circuit unit which outputs to a multifunction control circuit unit. The control circuit unit then takes care of the remaining protection issues. The touching device for paper shredders protects humans and other living beings including pets from injuries through automatic and real time monitoring. The complete control process is both safe and sensitive.

US Patent:

20130037637, Feb 14, 2013

Filed:

Aug 8, 2011

Appl. No.:

13/205434

Inventors:

Guanlong Chen - Shanghai, CN
Yung Kang Tso - Shanghai, CN
Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US

Assignee:

Aurora Office Equipment Co., Ltd. Shanghai - Shanghai

International Classification:

B02C 19/00

US Classification:

241 25, 241 36

Abstract:

Apparatus and method for a power-saving shredder, including motorized shredder blades; a shredder controller coupled to the motor controller; a timer coupled to the motor controller, and a mechanically-actuated switch (GREEN SWITCH) couples to the shredder controller. The GREEN SWITCH causes the shredder controller, the motor controller, the motorized shredder blades, and the timer to be activated. The Normally Off switch, when deactuated, causes motorized shredder blades to deactivate. A method of operating a paper shredder includes operating a mechanical actuation switch ON; applying power to paper shredder electrical and electronic elements by operating the mechanical actuation switch; setting a timer for a predetermined active period; operating motorized paper shredder blades by operating the mechanical actuation switch ON; operating the mechanical actuation switch OFF; counting by the timer the predetermined active period; and if the predetermined active period has expired, removing power from the paper shredder electrical and electronic elements.

US Patent:

20130037639, Feb 14, 2013

Filed:

Aug 8, 2011

Appl. No.:

13/205504

Inventors:

Guanlong Chen - Shanghai, CN
Yung Kang Tso - Shanghai, CN
Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US

Assignee:

Aurora Office Equipment Co., Ltd. Shanghai - Shanghai

International Classification:

B02C 11/08

US Classification:

241 47

Abstract:

A paper shredder having a ventilation fan; a ventilation duct tightly coupled to the ventilation fan; and air openings on the ventilation duct to blow air so that the natural fall of paper waste is disturbed. The air openings are on the ventilation duct blow air generally sideways or generally angularly to the natural fall of paper waste. The ventilation fan intake is proximate to and provides supplemental cooling air flow to, a shredder motor. A lower lid is generally above the waste bin, wherein the air openings are disposed to blow air. The shredder motor is on the lower lid. A ventilation fan intake is proximate to a shredder motor and tightly coupled to the ventilation fan, the ventilation fan intake provides supplemental cooling air flow to the shredder motor, and the air openings are on the ventilation duct blow air angularly to the natural paper waste fall.

US Patent:

20130099040, Apr 25, 2013

Filed:

May 24, 2012

Appl. No.:

13/480392

Inventors:

Kevin Chen - Rancho Palos Verdes CA, US
Chung Shih Tsai - Hawthorne CA, US
Wei Hsin Chen - Shanghai, CN
Hsin-Hsiung Chen - Shanghai, CN

International Classification:

B02C 18/18
B21D 39/00
B23P 15/28

US Classification:

2412921, 76115, 29505

Abstract:

A grooved incisor blade set for paper shredders is disclosed. A blade includes a crown, a groove juxtaposed with the crown, and a center hole for a cutting arbor, where the crown and the groove define a relief channel. A stair-shaped, U-shaped or V-shaped blade assembly is described. In one embodiment, a notched grooved incisor blade having notches proximate to the central hole comes in contact with a mating grooved incisor blade also having a central hole. Force is applied to the mating blade to displace some of the body of the mating blade into the notches, affixing the blades together. A method for forming shredder cutting blades includes providing a strip of metal, forming a crown in the strip of metal, forming a relief groove juxtaposed to the crown in the strip of metal, thereby forming a relief channel, and trimming the grooved incisor blade of excess metal.