Himanshu S Joshi, 44Fulshear, TX

8594804, Nov 26, 2013

Apr 28, 2011

13/096805

Himanshu Joshi - Houston TX, US

Cyberonics, Inc. - Houston TX

A61N 1/00

607 61

A particular method of providing power to an implantable medical device includes providing a first signal to a primary coil that is inductively coupled to a secondary coil of an implantable medical device. The method also include determining a first alignment difference between a voltage corresponding to the first signal and at least one of a current corresponding to the first signal and a component voltage at a component of a primary coil circuit. The method further includes determining a frequency sweep range based on the first alignment difference. The method also includes performing a frequency sweep over the frequency sweep range.

2011024, Oct 6, 2011

Oct 3, 2009

13/122370

Himanshu Joshi - Houston TX, US
Hjalti Hreinn Sigmarsson - West Lafayette IN, US
Dimitrios Peroulis - West Lafayette IN, US
William J. Chappell - Lafayette IN, US
Xiaoguang Liu - West Lafayette IN, US

H01P 1/207

333209

A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.

2012027, Nov 1, 2012

Apr 29, 2011

13/098279

Himanshu Joshi - Houston TX, US
David L. Thompson - Houston TX, US
Jared Brandon Floyd - Ferndale WA, US
Eric Y. Chow - Houston TX, US
Jonathan D. Rowell - San Antonio TX, US

Cyberonics, Inc. - Houston TX

H04W 88/00
H01Q 13/10
H02J 7/04
H01P 11/00

455 73, 29600, 343767, 343770, 320108

An implantable medical device may include a case which houses components of the implantable medical device. The implantable medical device may include an inductive coil coupled to a rechargeable battery. The inductive coil may be operative to inductively couple to an external coil and to transfer energy from the external coil to the rechargeable battery to recharge the rechargeable battery. The implantable medical device may include a cutout formed in the case of the implantable medical device and filled with a dielectric material. The cutout may be operative to reduce eddy currents in the case during recharge of the rechargeable battery. The implantable medical device may include a slot antenna disposed within the case. The slot antenna may be operative to communicate with an external device through the cutout in the case.

2012027, Nov 1, 2012

Dec 16, 2011

13/328241

HIMANSHU JOSHI - Houston TX, US
Eric Y. Chow - Houston TX, US
Clint Warren - Dickinson TX, US

CYBERONICS, INC. - Houston TX

H04B 1/38
H04B 1/06
H01Q 1/42
A61N 1/36
H01P 11/00

455 73, 607 60, 29601, 343789, 455130

An implantable medical device includes a case having a conductive housing defining an opening. A dielectric material is coupled to the conductive housing to hermetically seal the opening. An antenna is within the case under the dielectric material. A header block is coupled to the case over the dielectric material.

2012028, Nov 15, 2012

Jul 26, 2012

13/558640

Himanshu JOSHI - Houston TX, US
Darrell N. FULLER - Friendswood TX, US

CYBERONICS, INC. - Houston TX

H01Q 1/24
B23P 17/04

343702, 29530

An implantable medical device includes a case having a conductive housing defining an opening. A dielectric material is coupled to the conductive housing to hermetically seal the opening. A header block is coupled to the case over the dielectric material. An antenna is within the case under the dielectric material and there is no antenna feedthrough extending through the case into the header block.

2013020, Aug 15, 2013

Mar 14, 2013

13/829141

Himanshu Joshi - Houston TX, US

Cyberonics, Inc. - Houston TX

H01Q 1/42

343789

An implantable medical device includes a housing. An opening is present in the housing. The implantable medical device includes an antenna in the housing, where the antenna is located below the opening. The implantable medical device includes a cover coupled to edges of the housing defining the opening to close the opening. The cover enables passage of radio frequency signals at one or more communication frequencies to and from the antenna. The implantable medical device also includes an antenna shield positioned above the cover. The antenna shield reduces passage of radio frequency signals to and from at least a portion of the antenna during use.

2014005, Feb 27, 2014

Aug 23, 2012

13/593178

Himanshu JOSHI - Houston TX, US

CYBERONICS, INC. - Houston TX

H02J 7/00

320108

An implantable medical device is disclosed that includes a charging coil configured to inductively couple to a first external coil to receive a charging signal to charge a charge storage element of the implantable medical device. The implantable medical device also includes a circuit coupled to the charging coil. The circuit includes a circuit component that, in response to the charging signal, generates a backscatter signal. The implantable medical device also includes a communication coil orthogonal to the charging coil and coupled to the circuit component. The communication coil is configured to inductively couple to a second external coil to communicate the backscatter signal to the second external coil.

2022029, Sep 15, 2022

Aug 14, 2020

17/631953

- HOUSTON TX, US
Himanshu Madhav JOSHI - Houston TX, US

F25J 1/00
F25J 1/02
F28D 7/16
F28F 1/24
F28D 21/00

The present disclosure provides a heat exchanger system and a method of using the heat exchanger system for heating, cooling or condensing a gaseous multiple component process stream comprising at least one hydrocarbon. The heat exchanger system comprises: —a shell having at least one first inlet and at least one first outlet defining a flow path for a first process fluid, and at least one second inlet and at least one second outlet defining a flow path for a second process fluid; —a number of parallel tubes arranged in the shell between the first inlet and the first outlet, each tube having an outer surface being provided with a multitude of plate fins extending radially outward from the outer surface; the first flow path extending along the outer surface of the tubes, and the second flow path extending through the tubes. The multiple component process stream may comprise two or more components selected from the group of methane, ethane, propane, and nitrogen. The heat exchanger may be used to cool or condense a mixed refrigerant, comprising one or more hydrocarbons, in a process for the liquefaction of natural gas.