STEVEN JUNJI YUKAWA
Pilots at Oakwood Ave, Seattle, WA

License number
Washington A2634038
Issued Date
Jun 2015
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
10933 Oakwood Ave S, Seattle, WA 98178

Professional information

Steven Yukawa Photo 1

System And Method For Synchronizing Databases

US Patent:
8170988, May 1, 2012
Filed:
Jul 14, 2008
Appl. No.:
12/172792
Inventors:
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Seattle WA, US
Tim W. Anstey - Seattle WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
G06F 7/00, G06F 17/00
US Classification:
707622
Abstract:
A method for synchronizing information shared by a subsystem on-board a mobile platform and a subsystem remote from the mobile platform. The method may involve designating one of the subsystems as a first system having a first database, and designating one of the subsystems as a second system having a second database. The first subsystem may be used to transmit a synchronization request to the second subsystem, with the synchronization request including a synchronization point to be used as a reference for future synchronization operations between the subsystems. The second subsystem may be used to receive the synchronization request and to check the second database for any records that have been created or modified since a previously performed synchronization operation. Information may then be transmitted back to the first subsystem that includes information concerning the new or modified records.


Steven Yukawa Photo 2

Real-Time Electronic Signature Validation Systems And Methods

US Patent:
7822985, Oct 26, 2010
Filed:
Aug 21, 2006
Appl. No.:
11/507147
Inventors:
Timothy W. Anstey - Seattle WA, US
David L. Allen - Kent WA, US
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Kenmore WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
H04L 9/32
US Classification:
713176, 713175
Abstract:
A method for real-time validation of an electronically signature generated onboard a mobile system. The method includes maintaining a ground mobile user account management (GMUAM) module user database to have up-to-date authorized user account information. The GMUAM is hosted by a stationary central computer system (CCS). The method additionally includes transferring the up-to-date authorized user account information stored on the GMUAM user database to a mobile user account management (MUAM) module user database, thereby updating the MUAM user data base with up-to-date authorized user account information. The MUAM module is included in an onboard computer system (OCS) hosted by the mobile system. The method further includes evoking a signature validator module communicatively connected to the MUAM module to access the MUAM database and verify whether user account information included in an electronic signature initiated by a secure data application (SDA) is authorized user account information. The SDA and the signature validator module hosted by the OCS.


Steven Yukawa Photo 3

Integrated Performance Application

US Patent:
2007021, Sep 20, 2007
Filed:
Mar 20, 2006
Appl. No.:
11/384612
Inventors:
David Allen - Kent WA, US
Timothy Anstey - Seattle WA, US
Steven Yukawa - Seattle WA, US
Steven Churchill - Issaquah WA, US
International Classification:
G01C 23/00, G06F 17/00
US Classification:
701003000, 701004000
Abstract:
An electronic flight bag is disclosed which includes an electronic logbook module having an electronic logbook database. The electronic logbook module is configured to compile a list of deferred maintenance items including one or more MEL items. The electronic flight bag also includes an onboard performance tool module operatively connected to the electronic logbook module. The onboard performance tool module is configured to access the list of deferred maintenance items compiled by the electronic logbook module and calculate a plurality of performance parameters. The electronic flight bag also includes an electronic document browser module operatively connected to the electronic logbook module and the onboard performance tool module. The electronic document browser module includes an electronic document browser database storing documentation regarding the MEL item(s) included in the list of deferred maintenance items compiled by the electronic logbook module.


Steven Yukawa Photo 4

Fault Data Management

US Patent:
7788002, Aug 31, 2010
Filed:
Aug 8, 2005
Appl. No.:
11/199399
Inventors:
Steven J Yukawa - Seattle WA, US
Tim W Anstey - Seattle WA, US
Steven R Ecola - Sammamish WA, US
David L Allen - Kent WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
G01M 17/00, G06F 7/00, G06F 19/00
US Classification:
701 29, 701 14, 701 24, 701 30, 701 33, 701 34, 701 35, 3408532, 340945, 340963
Abstract:
A system and method are provided for managing mobile platform fault data. The method includes automatically collecting raw fault data regarding at least one fault that occurs onboard the mobile platform utilizing a central maintenance computer (CMC) onboard the mobile platform. The raw fault data is automatically transmitted from the CMC to an onboard computer system (OCS) of the mobile platform and to a central computer system (CCS) located remotely from the mobile platform. The method additionally includes automatically generating at least one electronic mobile platform cabin (MPC) draft fault report from the raw data utilizing a first portion of an electronic logbook function (ELB) of the OCS. Execution of the ELB additionally generates a MPC draft fault report notification message viewable on an OCS display and is automatically downloaded to the CCS. The method further includes automatically correlating the MPC draft fault report with the raw fault data utilizing a second portion of the electronic logbook (ELB) of the CCS.


Steven Yukawa Photo 5

Electronic Signature Validation Systems And Methods For Asynchronous Environments

US Patent:
8479003, Jul 2, 2013
Filed:
Aug 21, 2006
Appl. No.:
11/507144
Inventors:
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Kenmore WA, US
Timothy W. Anstey - Seattle WA, US
David L. Allen - Kent WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
H04L 9/32
US Classification:
713176, 713175, 713181, 340981, 726 10, 726 27
Abstract:
A system and method for non-real-time validation of an electronically signed message transmitted via an asynchronous communications link is provided. The method includes creating an electronic message comprising an electronically signed data entry created by executing a secure data application first portion (SDA) module hosted by a mobile system. The method additionally includes passing the message to a communications management function first portion (CMF) module via a synchronous interface. The CMF module is hosted by the mobile system. The method further includes transmitting the message from the CMF module to a communications management function second portion (CMF) module in a temporally delayed manner using an asynchronous communications link. The CMF module is hosted by a central computer system (CCS) located remotely from the mobile system. The method further yet includes validating the electronically signed entry in a temporally delayed manner utilizing a user database.


Steven Yukawa Photo 6

System And Method For Determining Electronic Logbook Observed Defect Fix Effectiveness

US Patent:
8380385, Feb 19, 2013
Filed:
Nov 12, 2008
Appl. No.:
12/269315
Inventors:
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Seattle WA, US
Timothy W. Anstey - Seattle WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
G01M 17/00
US Classification:
701 29, 701 24, 701 25, 701 30
Abstract:
A method for automating tracking of an effectiveness of fault repairs. The method may involve defining a unique fault code for each one of a plurality of different faults; cataloging faults that are repaired according to their respective fault codes and storing each cataloged fault in a fix effectiveness subsystem; placing the fix effectiveness subsystem in communication with an electronic logbook (ELB) system that is able to populate the fix effectiveness subsystem with additional fault information; providing a user interface to enable a user to access said ELB system to obtain information on a specific fault condition that was previously stored on the fix effectiveness subsystem; and presenting a fault history to the user from information stored in the fix effectiveness subsystem that enables the user to select a repair procedure for correcting the specific fault condition.


Steven Yukawa Photo 7

Automated Integration Of Fault Reporting

US Patent:
8316225, Nov 20, 2012
Filed:
Jul 28, 2005
Appl. No.:
11/191645
Inventors:
Steven J Yukawa - Seattle WA, US
Tim W Anstey - Seattle WA, US
Steven R Ecola - Sammamish WA, US
David L Allen - Kent WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
H04L 9/00, H04B 1/69
US Classification:
713150, 455 6711, 455 98, 455431, 342 36, 709224, 709225, 701 334
Abstract:
A system and method are provided for establishing a communication link between an on onboard computer system (OCS) of a mobile platform and a central computer system (CCS) located remotely from the mobile platform. A message containing data to be downloaded from the OCS to the CCS is sent from a first portion of an electronic log book function (ELB) of the OCS to a second portion of a communications management function (CMF) of the OCS. The message is configured into a transmittable data file and placed into an outgoing queue of the CMF. The CMF automatically selects at least one desired communication channel from a plurality of available communication channels utilizing a configuration file of the CMF. The CMF establishes a secure link between the OCS and the CCS utilizing the automatically selected communication channel and sends the transmittable data file to the CCS, via the secure established link over the automatically selected channel.


Steven Yukawa Photo 8

System And Method For Generating Maintenance Release Information

US Patent:
8437906, May 7, 2013
Filed:
Apr 17, 2008
Appl. No.:
12/104600
Inventors:
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Seattle WA, US
Tim W. Anstey - Seattle WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
G01M 17/00, G06F 17/00, G06F 19/00, G06F 19/24, G06Q 10/00, G08B 21/00, G08B 31/00
US Classification:
701 291, 707603, 707999201, 340945, 705 723, 701 294, 701 314, 701 334
Abstract:
A method for creating a maintenance release (MR) record containing operational status information for a mobile platform. The method may involve electronically accessing a database to acquire operational items relating to operational worthiness of the mobile platform, displaying the selected operational items to the user; and performing a synchronization check of the database system. The synchronization check verifies that the selected operational items represent the most recently stored information in the database system.


Steven Yukawa Photo 9

Electronic Logbook Flight Preparation System And Method

US Patent:
8306685, Nov 6, 2012
Filed:
Apr 17, 2008
Appl. No.:
12/104611
Inventors:
Steven J. Yukawa - Seattle WA, US
Rajit Jain - Seattle WA, US
Tim W. Anstey - Seattle WA, US
Assignee:
The Boeing Company - Chicago IL
International Classification:
G01M 17/00
US Classification:
701 29
Abstract:
A method for carrying out a logbook flight preparation process to present pre-flight information to a flight crew member of an aircraft prior to a flight mission. The method may involve electronically accessing a database to obtain a quantity of pre-flight information relating to an airworthiness of the aircraft, with the database being at least one of on-board the aircraft and remote from said aircraft. The quantity of pre-flight information is displayed in accordance with a desired sequence in which the information is to be presented to said flight crew member. The quantity of preflight information may be presented on a visual display in the desired sequence.