Hiroshi Nakahara, Age 5426509 Craftsmen Ct, Santa Clarita, CA 91350

6596439, Jul 22, 2003

Sep 29, 2000

09/675287

Hisashi Tsukamoto - Saugus CA
Clay Kishiyama - Burbank CA
Mikito Nagata - Valencia CA
Hiroshi Nakahara - Santa Clarita CA
Tiehua Piao - Saugus CA

Quallion LLC - Sylmar CA

H01M 452

429245, 429223, 4292313, 42923195

A lithium ion battery particularly configured to be able to discharge to a very low voltage, e. g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Substrate Dissolution Potential (SDP) to thus avoid low voltage substrate damage. The configuration includes a lithium nickel cobalt oxide positive active material combined with negative electrode comprising a titanium or titamum alloy substrate having a carbon active material formed thereon.

6677076, Jan 13, 2004

Jun 12, 2002

10/171351

Hiroshi Nakahara - Santa Clarita CA
David M. Skinlo - Valencia CA
Hisashi Tsukamoto - Saugus CA
Mikito Nagata - Valencia CA

Quallion LLC - Sylmar CA

H01M 610

429 94

An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.

6716554, Apr 6, 2004

Sep 26, 2002

10/256122

Hisashi Tsukamoto - Saugus CA
Naoki Ota - Stevenson Ranch CA
Hiroshi Nakahara - Santa Clarita CA

Quallion LLC - Sylmar CA

H01M 202

429181, 429177, 296234, 296231

A method and apparatus for providing a hermetically sealed electrical feedthrough for use with a metal battery case. The apparatus includes a ceramic-metal feedthrough subassembly, a metal case of low melt point material, and a clad metal case cover comprising a first layer of high melt point material and a second layer of low melt point material. The first layer is hermetically sealed to the case and the second layer is hermetically sealed to a collar on the feedthrough subassembly. In another embodiment, the case body, clad cover, and feedthrough pin are made of metals that can withstand the temperatures required for hermetically sealing the ceramic cylinder directly to the cover. The cover comprises a first material suitable for installing the feedthrough subassembly and a second material matched to the case body for forming a reliable weld thereto.

7101642, Sep 5, 2006

Sep 30, 2002

10/262490

Hisashi Tsukamoto - Saugus CA, US
Clay Kishiyama - Burbank CA, US
Mikito Nagata - Valencia CA, US
Hiroshi Nakahara - Santa Clarita CA, US
Tiehua Piao - Valencia CA, US

Quallion LLC - Sylmar CA

H01M 4/52

429245, 42923195, 429223, 4292313

A lithium ion battery particularly configured to be able to discharge to a very low voltage, e. g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT). A method for using a battery capable of tolerating discharge to zero volts is also disclosed.

7341802, Mar 11, 2008

Mar 25, 2004

10/811434

Naoki Ota - Valencia CA, US
Hiroshi Nakahara - Santa Clarita CA, US
David L. DeMuth - Santa Clarita CA, US
M. Elizabeth Bush - Santa Clarita CA, US

Quallion LLC - Sylmar CA

H01M 2/06

429181, 174 5061

A feedthrough is insulated and hermetically sealed by brazing a ceramic disk to a case cover and by brazing the top surface of the ceramic disk to the bottom surface of a feedthrough pinhead. Using this technique instead of forming a compression seal, the surface area for bonding is increased, increasing bond strength. The ceramic disk electrically insulates the feedthrough pin from the cover, and provides a large surface area for mechanically sealing the cell with the braze. Considering the small size of many cells, this increased surface area is important for getting a good seal and increasing bond strength. This design also creates a longer fluid path, providing greater hermeticity. Furthermore, a greater range of component material combinations is available because CTE compatibility limitations of the feedthrough pin, cover, and insulator are minimized. This feedthrough is applicable to broad array of applications and numerous material combinations.

7416811, Aug 26, 2008

Jan 15, 2003

10/478706

Hiroshi Nakahara - Santa Clarita CA, US
Mikito Nagata - Valencia CA, US
David M. Skinlo - Valencia CA, US
Hisashi Tsukamoto - Santa Clarita CA, US
Hiroyuki Yumoto - Stevenson Ranch CA, US

Quallion LLC - Sylmar CA

H01M 4/64
H01M 2/18
H01M 10/04

429 94, 429164, 429166, 429161, 429169, 429170, 429178, 429176, 429211, 429 60

An electric storage battery and method of manufacture thereof. Active material () is removed from both sides of the outer end () of the negative electrode () in a jellyroll () to allow room for adhesive tape () to secure the jellyroll.

7575829, Aug 18, 2009

Apr 5, 2005

11/100266

Hiroshi Nakahara - Santa Clarita CA, US
Hisashi Tsukamoto - Santa Clarita CA, US

Quallion LLC - Sylmar CA

H01M 2/08
H01M 2/00

429175, 429163

A battery case is disclosed. The case includes a cover bonded to a body such that a bottom of the cover and the body define at least a portion of the interior of a battery. The cover includes a second metal which is bonded to a first metal included in the battery body. The second metal is clad with a third metal such that the third metal covers less than 90% of an upper surface of the second metal. A hole extends through the second metal and the third metal. The case also includes a feedthrough assembly extending through the hole. The feedthrough assembly includes a feedthrough pin surrounded by a feedthrough body. The feedthrough body includes a fourth metal bonded to the third metal in the cover.

7598003, Oct 6, 2009

Mar 3, 2005

11/072739

Sang Young Yoon - Saugus CA, US
Hiroshi Nakahara - Santa Clarita CA, US
Hisashi Tsukamoto - Santa Clarita CA, US
Manabu Tanaka - Valencia CA, US

Quallion LLC - Symar CA

H01M 10/40
H01M 4/58

429313, 4292318, 42923195, 429326, 429330

The battery includes an electrolyte activating one or more cathodes and one or more anodes. The electrolyte includes one or more organoborate salts in a solvent. The organoborate salt can include a lithium bis[bidentate]borate or a lithium dihalo mono[bidentate]borate. In some instances, the solvent includes a silane or a siloxane.