Kenji Alexander Sasaki

US Patent:

20120028137, Feb 2, 2012

Filed:

Apr 25, 2011

Appl. No.:

13/093759

Inventors:

Gregory V. Chase - Pasadena CA, US
Strahinja Zecevic - Tustin CA, US
T. Walker Wesley - Los Angeles CA, US
Jasim Uddin - Pasadena CA, US
Kenji A. Sasaki - Pasadena CA, US
P. Giordani Vincent - Los Angeles CA, US
Vyacheslav Bryantsev - Pasadena CA, US
Mario Blanco - Temple City CA, US
Dan D. Addison - Pasadena CA, US

International Classification:

H01M 8/22
B01J 23/02
B01J 23/04
B01J 21/10
B01J 35/00
H01M 8/00

US Classification:

429405, 502 1, 429535

Abstract:

Rechargeable metal-air battery, air electrodes for use in the metal-air battery, and methods to manufacture the same are provided. The battery includes a negative electrode capable of taking and releasing active metal ions, a porous positive electrode using oxygen as an electroactive material and an electrolyte configured to conduct ions between the negative and positive electrodes and comprising one or more phases, wherein at least one phase comprises a liquid that at least partially fills the pores of the positive electrode and wherein the liquid comprises an oxygen evolving catalyst (OEC). The OEC a) is soluble in the liquid of the phase that partially fills the positive electrode pores, b) is electrochemically activated at a potential above the equilibrium cell voltage and c) is capable of evolving oxygen gas by oxidizing a metal oxide discharge product produced during discharge of the rechargeable metal-air battery.

US Patent:

20130089795, Apr 11, 2013

Filed:

Jul 23, 2010

Appl. No.:

13/386872

Inventors:

Gregory V. Chase - Pasadena CA, US
Dan D. Addison - Pasadena CA, US
Mario Blanco - Temple City CA, US
Kenji A. Sasaki - Pasadena CA, US
Jasim Uddin - Pasadena CA, US

International Classification:

H01M 12/08
H01M 4/04

US Classification:

429405, 429403, 296231, 264105

Abstract:

The present invention generally relates to batteries and, in particular, to electrodes for use in batteries such as non-aqueous metal-air batteries, for example, lithium-air batteries, as well as in other electrochemical devices. Such devices may exhibit improved performance characteristics (e.g. power, cycle life, capacity, etc.). One aspect of the present invention is generally directed to electrodes for use in such devices containing one or more pores or channels for transport of gas and/or electrolyte therein, e.g., forming an open porous network. In certain embodiments, the electrolyte may be a gel or a polymer. In some embodiments, there may be network of such channels or pores within the electrode such that no active site within the electrode is greater than about 50 micrometers distant from a gas channel. In some embodiments, such systems may be created using electrodes containing gel or electrolyte polymers, and/or by forming electrodes having different wettabilities such that certain regions preferentially attract the electrolyte compared to other regions, thereby causing self-organization of the electrolyte within the electrode. Other aspects of the invention are generally directed to methods of making such batteries or electrochemical devices, methods of using such batteries or electrochemical devices, kits involving such batteries or electrochemical devices, or the like.

US Patent:

20210091052, Mar 25, 2021

Filed:

Nov 23, 2020

Appl. No.:

17/101016

Inventors:

- Vancouver WA, US
Kenji Sasaki - West Linn OR, US
Kurt Ulmer - Vancouver WA, US

International Classification:

H01L 25/075
H01L 33/48
H01L 33/38

Abstract:

A microLED mass transfer stamping system includes a stamp substrate with an array of trap sites, each configured with a columnar-shaped recess to temporarily secure a keel extended from a bottom surface of a microLED. In the case of surface mount microLEDs, the keel is electrically nonconductive. In the case of vertical microLEDs, the keel is an electrically conductive second electrode. The stamping system also includes a fluidic assembly carrier substrate with an array of wells having a pitch separating adjacent wells that matches the pitch separating the stamp substrate trap sites. A display substrate includes an array of microLED pads with the same pitch as the trap sites. The stamp substrate top surface is pressed against the display substrate, with each trap site interfacing a corresponding microLED site, and the microLEDs are transferred. Fluidic assembly stamp substrates are also presented for use with microLEDs having keels or axial leads.

US Patent:

20200411933, Dec 31, 2020

Filed:

Sep 11, 2020

Appl. No.:

17/018965

Inventors:

- Pasadena CA, US
Strahinja ZECEVIC - Tustin CA, US
Wesley T. WALKER - Los Angeles CA, US
Jasim UDDIN - Pasadena CA, US
Kenji A. SASAKI - Pasadena CA, US
Vincent P. GIORDANI - Los Angeles CA, US
Vyacheslav BRYANTSEV - Pasadena CA, US
Mario BLANCO - Temple City CA, US
Dan D. ADDISON - Pasadena CA, US

International Classification:

H01M 12/08
H01M 4/38
H01M 10/052
H01M 4/86
H01M 4/92
H01M 4/90

Abstract:

Rechargeable metal-air battery, air electrodes for use in the metal-air battery, and methods to manufacture the same are provided. The battery includes a negative electrode capable of taking and releasing active metal ions, a porous positive electrode using oxygen as an electroactive material and an electrolyte configured to conduct ions between the negative and positive electrodes and comprising one or more phases, wherein at least one phase comprises a liquid that at least partially fills the pores of the positive electrode and wherein the liquid comprises an oxygen evolving catalyst (OEC). The OEC a) is soluble in the liquid of the phase that partially fills the positive electrode pores, b) is electrochemically activated at a potential above the equilibrium cell voltage and c) is capable of evolving oxygen gas by oxidizing a metal oxide discharge product produced during discharge of the rechargeable metal-air battery.

US Patent:

20200251451, Aug 6, 2020

Filed:

Apr 13, 2020

Appl. No.:

16/846493

Inventors:

- Vancouver WA, US
Kenji Sasaki - West Linn OR, US
Kurt Ulmer - Vancouver WA, US

International Classification:

H01L 25/075
H01L 33/38
H01L 33/48

Abstract:

A fluidic assembly emissive display panel is presented with a plurality of wells exposing LED interfaces. Each LED interface is made up of a planar first interconnect platform having an x-axis first depth and is configured to accept an axial LED first electrode mounting wing. A planar second interconnect platform has the first depth and is configured to accept an axial LED second electrode mounting wing. A groove is interposed between the first and second interconnect platforms and has an x-axis second depth, greater than the first depth, and is configured to accept an axial LED body locking tooth. The axial LEDs have an inorganic LED body with two symmetrical locking teeth. First and second electrode mounting wings are electrically connected to corresponding LED interface first and second interconnect platforms, and aligned in a plane orthogonal to stacked LED body semiconductor layers.

US Patent:

20190319015, Oct 17, 2019

Filed:

May 8, 2019

Appl. No.:

16/406196

Inventors:

- Vancouver WA, US
Changqing Zhan - Vancouver WA, US
Kenji Sasaki - West Linn OR, US
Kurt Ulmer - Vancouver WA, US

International Classification:

H01L 25/075
H01L 33/48
H01L 33/38

Abstract:

Planar surface mount (SM) micro light emitting diodes (μLEDs) are presented. The fabrication method provides a MOCVD LED structure with a stack including a first doped semiconductor in a first plane, a MQW layer overlying the first doped semiconductor in a second plane, and a second doped semiconductor overlying the MQW layer in a third plane. An electrical insulator is conformally deposited over the etched stack in a fourth plane, and etched to expose the second doped semiconductor, creating a first via. Etching exposes the first doped semiconductor, creating a second via. A first electrode is connected to the second doped semiconductor through the first via, and has a substrate interface surface in a fifth plane with an average planarity tolerance of less than 10 nanometers. A second electrode is connected to the first doped semiconductor through the second via, and has a substrate interface surface in the fifth plane.

US Patent:

20190319163, Oct 17, 2019

Filed:

May 8, 2019

Appl. No.:

16/406080

Inventors:

- Vancouver WA, US
Changqing Zhan - Vancouver WA, US
Kenji Sasaki - West Linn OR, US
Kurt Ulmer - Vancouver WA, US

International Classification:

H01L 33/00
H01L 33/24
H01L 33/38

Abstract:

Planar surface mount (SM) micro light emitting diodes (μLEDs) are presented. The fabrication method provides a MOCVD LED structure with a stack including a first doped semiconductor in a first plane, a MQW layer overlying the first doped semiconductor in a second plane, and a second doped semiconductor overlying the MQW layer in a third plane. An electrical insulator is conformally deposited over the etched stack in a fourth plane, and etched to expose the second doped semiconductor, creating a first via. Etching exposes the first doped semiconductor, creating a second via. A first electrode is connected to the second doped semiconductor through the first via, and has a substrate interface surface in a fifth plane with an average planarity tolerance of less than 10 nanometers. A second electrode is connected to the first doped semiconductor through the second via, and has a substrate interface surface in the fifth plane.

US Patent:

20190273006, Sep 5, 2019

Filed:

May 22, 2019

Appl. No.:

16/420097

Inventors:

- Vancouver WA, US
David Robert Heine - Horseheads NY, US
Mark Albert Crowder - Portland OR, US
Sean Mathew Garner - Elmira NY, US
Changqing Zhan - Vancouver WA, US
Avinash Tukaram Shinde - Pune, IN
Kenji Alexander Sasaki - West Linn OR, US
Kurt Michael Ulmer - Vancouver WA, US

International Classification:

H01L 21/67
H01L 33/00
H01L 23/00
H01L 29/06
H01L 21/673

Abstract:

Embodiments are related to systems and methods for fluidic assembly, and more particularly to systems and methods for assuring deposition of elements in relation to a substrate.