Patents by Inventor Rajesh Das
Rajesh Das has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9955054Abstract: A method for assembling a camera includes providing a circuit board with a first surface defining a plane and an aperture extending entirely through the circuit board. An image sensor is fixed on the first surface. A lens holder is provided with a lens barrel defining a central axis and supporting a lens in a fixed position relative to the lens barrel. A post extends outward from the lens barrel in a first direction. The circuit board and the lens holder are oriented such that the plane defined by a first surface of the circuit board is perpendicular to the central axis. The circuit board and the lens holder are axially joined so that the post is received by the aperture. A final alignment of the image sensor relative to the central axis and the lens is non-adjustably fixed upon sliding the post through the aperture.Type: GrantFiled: February 5, 2015Date of Patent: April 24, 2018Assignee: ROBERT BOSCH GmbHInventor: Rajesh Das
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Patent number: 9913356Abstract: A connected light node (CLN) induction light ballast module for powering an induction lamp includes a printed circuit board having components mounted thereon and an earth ground region electrically isolated from a PCB ground region. A heat sink is disposed on a lower layer of the printed circuit board and electrically connected to the earth ground region, wherein a parasitic capacitance occurs between the printed circuit board ground region and the heat sink. A capacitive shield sandwiched by a lower insulating pad and an upper insulating pad is electrically isolated from the heat sink supporting the shield. A damping network electrically connects the capacitive shield to the PCB ground region. Switch-mode power converters are mounted above the upper insulating pad and the shield. The damping network suppresses noise by a parasitic capacitance between the PCB ground region and the heat sink during high frequency power converter operation.Type: GrantFiled: June 16, 2014Date of Patent: March 6, 2018Assignee: Robert Bosch GmbHInventors: Cyrous Rostamzadeh, Shijie Wang, Rajesh Das, Steven Gladstein, Timothy Foster, Allen Marecki, Sanjai Master
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Publication number: 20170181257Abstract: A connected light node (CLN) induction light ballast module for powering an induction lamp includes a printed circuit board having components mounted thereon and an earth ground region electrically isolated from a PCB ground region. A heat sink is disposed on a lower layer of the printed circuit board and electrically connected to the earth ground region, wherein a parasitic capacitance occurs between the printed circuit board ground region and the heat sink. A capacitive shield sandwiched by a lower insulating pad and an upper insulating pad is electrically isolated from the heat sink supporting the shield. A damping network electrically connects the capacitive shield to the PCB ground region. Switch-mode power converters are mounted above the upper insulating pad and the shield. The damping network suppresses noise by a parasitic capacitance between the PCB ground region and the heat sink during high frequency power converter operation.Type: ApplicationFiled: June 16, 2014Publication date: June 22, 2017Inventors: Cyrous Rostamzadeh, Shijie Wang, Rajesh Das, Steven Gladstein, Timothy Foster, Allen Marecki, Sanjai Master
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Publication number: 20160234410Abstract: A method for assembling a camera includes providing a circuit board with a first surface defining a plane and an aperture extending entirely through the circuit board. An image sensor is fixed on the first surface. A lens holder is provided with a lens barrel defining a central axis and supporting a lens in a fixed position relative to the lens barrel. A post extends outward from the lens barrel in a first direction. The circuit board and the lens holder are oriented such that the plane defined by a first surface of the circuit board is perpendicular to the central axis. The circuit board and the lens holder are axially joined so that the post is received by the aperture. A final alignment of the image sensor relative to the central axis and the lens is non-adjustably fixed upon sliding the post through the aperture.Type: ApplicationFiled: February 5, 2015Publication date: August 11, 2016Inventor: Rajesh Das
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Patent number: 8818612Abstract: A diagnostic connector module for a vehicle includes an electronic communication module and a housing enclosing the electronic communication module. The housing has integrated connectors electrically connected to the electronic communication module. The integrated connectors include a diagnostic service connector for connection with an external diagnostic scan tool and a vehicle bus connector connectable to a vehicle bus. The diagnostic service connector has a plurality of female pin-receptors electrically connected to the electronic communication module, and the vehicle bus connector has a plurality of terminals electrically connected to the electronic communication module. A vehicle diagnostic system including the diagnostic connector module is also provided.Type: GrantFiled: September 14, 2011Date of Patent: August 26, 2014Assignee: Robert Bosch GmbHInventor: Rajesh Das
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Patent number: 8702862Abstract: The present invention relates to a universal metallic/pearlescent colorant composition that is free of VOCs including alkylphenol ethoxylate (APE) and formaldehyde. The colorant composition comprises substantially no resin and comprises microcrystalline cellulose and optionally a synthetic silicate to disperse the metallic pigments.Type: GrantFiled: July 3, 2012Date of Patent: April 22, 2014Assignee: Columbia Insurance CompanyInventors: Rajesh Das, Mohammad Asif, Glen Cooper, Robert Sheerin
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Publication number: 20140007794Abstract: The present invention relates to a universal metallic/pearlescent colorant composition that is free of VOCs including alkylphenol ethoxylate (APE) and formaldehyde. The colorant composition comprises substantially no resin and comprises microcrystalline cellulose and optionally a synthetic silicate to disperse the metallic pigments.Type: ApplicationFiled: July 3, 2012Publication date: January 9, 2014Applicant: Columbia Insurance CompanyInventors: Rajesh Das, Mohammad Asif, Glen Cooper, Robert Sheerin
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Publication number: 20130066514Abstract: A diagnostic connector module for a vehicle includes an electronic communication module and a housing enclosing the electronic communication module. The housing has integrated connectors electrically connected to the electronic communication module. The integrated connectors include a diagnostic service connector for connection with an external diagnostic scan tool and a vehicle bus connector connectable to a vehicle bus. The diagnostic service connector has a plurality of female pin-receptors electrically connected to the electronic communication module, and the vehicle bus connector has a plurality of terminals electrically connected to the electronic communication module. A vehicle diagnostic system including the diagnostic connector module is also provided.Type: ApplicationFiled: September 14, 2011Publication date: March 14, 2013Applicant: ROBERT BOSCH GMBHInventor: Rajesh Das
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Publication number: 20120081866Abstract: An apparatus includes, in combination, an electrical component and a bracket. The electrical component has a first end configured to electrically connect to a circuit board. The electrical component defines an axis and has a width measured in a direction transverse to the axis. The bracket has a body defining a bore shaped to receive the electrical component. The body further includes a break in communication with the bore to allow expansion of the bore. In an at-rest state of the bracket, the bore has a bore width smaller than the width of the electrical component, and when the electrical component is received in the bore, the bracket is elastically deformed such that the electrical component is clamped in the transverse direction solely by the residual stress within the bracket without any additional clamp or fastener.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Applicant: ROBERT BOSCH GMBHInventors: Paul Wickett, Bernd Eckert, Rajesh Das
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Patent number: 6916997Abstract: Automotive load cells having centralized, multi-axis, loose tolerance overload/limit stops provide improved strain gauge response. The modular, integrated stop assemblies magnify sensor substrate deflection by use of opposed concave (Belleville) springs are used in direct contact with the substrate to accommodate ±Z axis deflection and Mx/My moment angular rotation. A flanged guide member on the load stud permits a wide range of geometries. The substrate is thickened around the load stud hole and the outboard support bolt holes. Hollow rivets assist in design modularity. Strain gauges are placed at the yield zones symmetrically with respect to the X axis. The substrate hole Mx/My gap is larger than the stop bracket hole to insure a positive stop for Mx/My moments prior to yield. The inventive multi-axis stop assembly is used in any type load cell, including rectangular, thinned, notched, necked/dogbone, or cantilever substrates with any strain gauge layout configuration.Type: GrantFiled: December 6, 2002Date of Patent: July 12, 2005Assignee: Robert Bosch CorporationInventors: Rajeev Thakur, Alexander Golshteyn, Russ Watts, Darren Lee, Rajesh Das
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Publication number: 20030106723Abstract: Automotive load cells having centralized, multi-axis, loose tolerance overload/limit stops provide improved strain gauge response. The modular, integrated stop assemblies magnify sensor substrate deflection by use of opposed concave (Belleville) springs are used in direct contact with the substrate to accommodate ±Z axis deflection and Mx/My moment angular rotation. A flanged guide member on the load stud permits a wide range of geometries. The substrate is thickened around the load stud hole and the outboard support bolt holes. Hollow rivets assist in design modularity. Strain gauges are placed at the yield zones symmetrically with respect to the X axis. The substrate hole Mx/My gap is larger than the stop bracket hole to insure a positive stop for Mx/My moments prior to yield. The inventive multi-axis stop assembly is used in any type load cell, including rectangular, thinned, notched, necked/dogbone, or cantilever substrates with any strain gauge layout configuration.Type: ApplicationFiled: December 6, 2002Publication date: June 12, 2003Inventors: Rajeev Thakur, Alexander Golshteyn, Russ Watts, Darren Lee, Rajesh Das