Gary S Shimozono

US Patent:

7004093, Feb 28, 2006

Filed:

Apr 30, 2004

Appl. No.:

10/834930

Inventors:

Steven Loui - Honolulu HI, US
Gary Shimozono - Kapolei HI, US
Troy Keipper - Honolulu HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63B 1/00

US Classification:

114 613, 114274

Abstract:

Low drag underwater submerged lifting bodies which can be used as underwater displacement portions of a vessel whose main hull is at sea level are asymmetrical and have improved lift to drag ratios. The lifting bodies have outer surfaces whose shapes are defined in plan and elevation by generally parabolic curves which are different on opposite sides of the lifting bodies.

US Patent:

7191725, Mar 20, 2007

Filed:

Jan 23, 2006

Appl. No.:

11/336812

Inventors:

Steven Loui - Honolulu HI, US
Troy Keipper - Honolulu HI, US
Gary Shimozono - Kapolei HI, US
Scott Yamashita - Honolulu HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63B 1/24

US Classification:

114274, 114 67 R

Abstract:

A watercraft having a hull, a fore and aft longitudinal axis and a bow includes a three dimensional low drag submerged lifting body secured to the bow below the design waterline of the hull.

US Patent:

7311059, Dec 25, 2007

Filed:

Dec 23, 2005

Appl. No.:

11/315304

Inventors:

Steven Loui - Honolulu HI, US
Scott Yamashita - Honolulu HI, US
Gary Shimozono - Kapolei HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63B 1/32

US Classification:

114288, 114289

Abstract:

A watercraft hull has at least one bent entrapment tunnel with an aft portion whose tunnel ceiling is at a higher elevation than portions of the tunnel ceiling immediately in front of it to provide a negative angle of attack with the free surface at design planing speeds.

US Patent:

7338336, Mar 4, 2008

Filed:

Dec 6, 2005

Appl. No.:

11/294472

Inventors:

Steven Loui - Honolulu HI, US
Scott Yamashita - Honolulu HI, US
Gary Shimozono - Kapolei HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63H 5/16

US Classification:

440 69

Abstract:

A watercraft hull having a pair of laterally spaced propulsion tunnels located on opposite sides of its keel, with said tunnels being open downwardly towards the water, includes a movably mounted keel section located between said propulsion tunnels to prevent water crossflow between said tunnels and increase dynamic lift on the hull.

US Patent:

7357687, Apr 15, 2008

Filed:

Dec 29, 2006

Appl. No.:

11/647164

Inventors:

Robert Gornstein - Kailua HI, US
Gary Shimozono - Kapolei HI, US
Brian Kays - Kaneohe HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63H 5/15

US Classification:

440 67

Abstract:

A marine propulsion steering apparatus includes a steering nozzle having a central opening therethrough which surrounds a marine propulsion drive shaft and propeller extending from a hull or propulsion module. The nozzle is pivotally mounted for angular movement in a predetermined range of movement on the support structure for the drive shaft for directing flow of water from the propeller in response to pivotal motion controlled by a steering mechanism.

US Patent:

7380514, Jun 3, 2008

Filed:

Aug 29, 2006

Appl. No.:

11/511253

Inventors:

Steven Loui - Honolulu HI, US
Scott Yamashita - Honolulu HI, US
Gary Shimozono - Kapolei HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63B 1/22

US Classification:

114285, 114288

Abstract:

A boat hull has at least one rocker chute formed therein open to the water forward of the hull's transom. The chute has a leading edge forward of the transom and an interceptor plate projects downwardly from the hull at said leading edge.

US Patent:

7459802, Dec 2, 2008

Filed:

Dec 13, 2007

Appl. No.:

11/955469

Inventors:

Steven Loui - Honolulu HI, US
Gary Shimozono - Kapolei HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

F03B 13/10

US Classification:

290 53, 290 42

Abstract:

An energy conversion system includes a first mechanical system for converting reciprocating motion to rotary motion, a second system formed of belts and pulleys connected to said first system and driven by said rotary motion to lift a weight in response to said rotary motion from a first position to a second position and allow the weight to return to said first position under the influence of gravity. A rotary electrical is driven by the second system through a transmission means connected to the second system to create electricity only while the weight is returning from its second to its first position.

US Patent:

7470161, Dec 30, 2008

Filed:

Mar 15, 2007

Appl. No.:

11/724174

Inventors:

Steven Loui - Honolulu HI, US
Gary Shimozono - Kapolei HI, US
Robert Gornstein - Kailua HI, US

Assignee:

Navatek, Ltd. - Honolulu HI

International Classification:

B63H 11/103

US Classification:

440 47, 114274, 440 38

Abstract:

A foil shaped lifting body is attached by means of a strut to the underwater body of a vessel in such a manner as to cause a standing wave to be developed when the vessel is in operation in order that the standing wave will induct water into machinery intakes. The technology of this invention is particularly applicable to the operation of waterjet marine propulsion systems.