Resumes
Resumes
Garrin Samii Phones & Addresses
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24982 Camberwell St, Laguna Hills, CA 92653 (714) 472-1096
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25721 Califia Dr, Laguna Hills, CA 92653
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Laguna Woods, CA
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Carlsbad, CA
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1817 Coast Hwy, Oceanside, CA 92054
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North Billerica, MA
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Belmont, MA
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Orange, CA
Publications
Us Patents
Shutdown Separators With Improved Properties
View pageUS Patent:
6949315, Sep 27, 2005
Filed:
May 12, 2004
Appl. No.:
10/709545
Inventors:
Garrin Samii - Laguna Hills CA, US
Abbas M Samii - Belmont MA, US
Dave C. Veno - Woburn MA, US
Abbas M Samii - Belmont MA, US
Dave C. Veno - Woburn MA, US
International Classification:
H01M002/16
US Classification:
429251, 429142, 429145, 429250
Abstract:
A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130–140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weight-average molecular weight of 1×10or more and an inert filler. A second microporous polyolefin battery separator has a shutdown temperature of between 95 and 110 degrees C. and a melt integrity of more than 165 degrees C. It is made from an UHMWPE having a weight-average molecular weight of 1×10or more, a shutdown (LMWPE) having a weight-average molecular weight of 4500 or less and an inert filler. Both membranes have a thickness of 5–75 microns, a porosity of 30–95%, an air permeability of 1–200 sec/10 cc, an average pore diameter of 0. 001 to 1 micron and puncture strength of more than 300 grams/25 {circumflex over (l)} m.
Shutdown Separators With Improved Properties
View pageUS Patent:
7323273, Jan 29, 2008
Filed:
Jul 26, 2005
Appl. No.:
11/161194
Inventors:
Garrin Samii - Laguna Hills CA, US
Abbas M Samii - Belmont MA, US
David C Veno - Woburn MA, US
Abbas M Samii - Belmont MA, US
David C Veno - Woburn MA, US
International Classification:
H01M 2/16
US Classification:
429251, 429142, 429145, 429250
Abstract:
A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weight-average molecular weight of 1×10or more and an inert filler. A second microporous polyolefin battery separator has a shutdown temperature of between 95 and 110 degrees C. and a melt integrity of more than 165 degrees C. It is made from an UHMWPE having a weight-average molecular weight of 1×10or more, a shutdown (LMWPE) having a weight-average molecular weight of 4500 or less and an inert filler. Both membranes have a thickness of 5-75 microns, a porosity of 30-95%, an air permeability of 1-200 sec/10 cc, an average pore diameter of 0. 001 to 1 micron and puncture strength of more than 300 grams/25 μm.
Shutdown Separators With Improved Properties
View pageUS Patent:
7323274, Jan 29, 2008
Filed:
Jul 29, 2005
Appl. No.:
11/161331
Inventors:
Garrin Samii - Laguna Hills CA, US
Abbas M Samii - Belmont MA, US
David C Veno - Woburn MA, US
Abbas M Samii - Belmont MA, US
David C Veno - Woburn MA, US
International Classification:
H01M 2/16
US Classification:
429251, 439142, 439145, 439250
Abstract:
A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It is made of UHMWPE having a weight-average molecular weight of 1×10or more and an inert filler. A second microporous polyolefin battery separator has a shutdown temperature of between 95 and 110 degrees C. and a melt integrity of more than 165 degrees C. It is made from an UHMWPE having a weight-average molecular weight of 1×10or more, a shutdown (LMWPE) having a weight-average molecular weight of 4500 or less and an inert filler. Both membranes have a thickness of 5-75 microns, a porosity of 30-95%, an air permeability of 1-200 sec/10 cc, an average pore diameter of 0. 001 to 1 micron and puncture strength of more than 300 grams/25 μm.
Shutdown Separators With Improved Properties
View pageUS Patent:
7662518, Feb 16, 2010
Filed:
Dec 7, 2007
Appl. No.:
11/952892
Inventors:
Abbas Samii - Belmont MA, US
Garrin Samii - Laguna Hills CA, US
David Veno - Woburn MA, US
Garrin Samii - Laguna Hills CA, US
David Veno - Woburn MA, US
International Classification:
H01M 2/14
H01M 2/16
H01M 2/16
US Classification:
429251, 429129, 429142, 429145
Abstract:
A microporous polyolefin battery separator membrane is extremely high in porosity, high in puncture strength, very low in shrinkage and with shutdown temperature of 130-140 degrees C. and melt integrity greater than 165 degrees C. It consists of 20-30% by weight of a UHMW polyethylene having Mw of 1×10or higher, 60-70% by weight of a HDPE having average Mw of between 200,000-500,000 and 5-15% by weight of TiOwith an average particle size of less than 0. 2 microns.
Polyolefin And Ceramic Battery Separator For Non-Aqueous Battery Applications
View pageUS Patent:
8304113, Nov 6, 2012
Filed:
Mar 5, 2007
Appl. No.:
11/682079
Inventors:
Garrin Samii - Laguna Hills CA, US
Banafsheh Behnam - Arlington MA, US
David Veno - Woburn MA, US
Abbas Samii - Belmont MA, US
Banafsheh Behnam - Arlington MA, US
David Veno - Woburn MA, US
Abbas Samii - Belmont MA, US
Assignee:
Advanced Membrane Systems, Inc. - North Billerica MA
International Classification:
H01M 2/16
US Classification:
429252, 429247, 429249, 429251, 429254
Abstract:
A ceramic microporous polyolefin battery separator membrane, high in air permeability, low in shrinkage and improved temperature resistance addresses the safety requirements of lithium ion batteries. The separators made by the current invention consists of one or more polyolefin polymers and kaolin fillers comprised of aluminum oxide and silicon oxide. The membranes of current invention have a thickness of 5-200 microns, air permeability of 1-200 sec/10 cc (Gurley seconds), and average pore diameter of less than 1 micron.
Separator For Non-Aqueous Lithium-Ion Battery
View pageUS Patent:
8372545, Feb 12, 2013
Filed:
Sep 22, 2011
Appl. No.:
13/240967
Inventors:
Garrin Samii - Laguna Hills CA, US
Abbas Samii - Belmont MA, US
Banafsheh Behnam - Cambridge MA, US
David Veno - Woburn MA, US
Abbas Samii - Belmont MA, US
Banafsheh Behnam - Cambridge MA, US
David Veno - Woburn MA, US
Assignee:
Advanced Membrane Systems, Inc. - North Billerica MA
International Classification:
H01M 2/16
US Classification:
429252, 429247, 429249, 429254
Abstract:
A method for manufacturing battery separators for use in a lithium-ion battery containing non-aqueous electrolytes, producing batteries being resistant to thermal runaway and explosion, includes the steps of preparing a dryblend comprising two UHMW Polyethylenes and Calcined Kaolin, feeding said dry-blend into an extruder, melt-kneading said dry blend in the extruder while feeding mineral oil, making a solution from a die into the form of a sheet, using casting rolls, thereby cooling the solution down, producing a thick gel sheet, stretching the gel sheet in both machine and transverse directions, producing a 20 micron thick gel sheet containing oil thereby, extracting the oil by use of a solvent and drying the film, heat-setting the film and producing a microporous membrane.
Microporous Membrane Battery Separator For Silver Zinc Batteries
View pageUS Patent:
6372379, Apr 16, 2002
Filed:
Feb 25, 2000
Appl. No.:
09/512917
Inventors:
Abbas M. Samii - Belmont MA, 02478
Garrin Samii - Laguna Hills CA, 92653
Garrin Samii - Laguna Hills CA, 92653
International Classification:
H01M 214
US Classification:
429145, 429129
Abstract:
A separator membrane for use in silver-zinc batteries is produced by extruding a blend of two fillers with the same chemical formula but different particle size. A polyolefine polymer and a plasticizer are blended and extruded to form a thin sheet of 1 to 10 mil thickness. The plasticizer is then extracted to leave submicron voids in the membrane. Plasticizers are added as processing aids, and can be either soluble or insoluble in water, and include petroleum oils, lubricating oils, fuel oils, and natural oils such as tall oils and linseed oils. The oil are then extracted from the membrane by conventional procedures such as single stage extraction using a suitable solvent. Commercially available wetting agents known to the art such as dodecylphenoxy polyethoxy ethanol and isooctyl phenyl polyethoxy ethanol are coated onto the sheet to improve wettability. The sheet is then dried, and boiled in distilled water for one minute or more, before being finally dried.