To create insanely great, elegantly engineered solutions. I am looking for a position where I can innovate and inspire as a mechatronics engineer, a project manager, and a cross-functional team leader in new product development or research scenarios.

Immersion Corporation, 2006 Present Sr. Researcher and Mechanical Engineer, R&D DepartmentMy primary responsibility is to provide a systems-analyst level of design and integration expertise for products and technologies that span mechanical engineering, electrical engineering, control system, user interaction, and software engineering disciplines. Examples of the projects and scope of my contribution to the Immersion team include:

Designed and constructed haptically augmented product prototypes and technology demonstrators in the fields of medical devices, human computer interaction, touch-screen and touch-surface technology.

Project manager and lead engineer on 11 major engineering projects. Projects included metrology systems (MicroScribe product lines), 3D haptic interaction hardware (CyberForce, CyberGrasp, CyberGlove), contract and NRE design and production for multiple consumer product and automotive industry brands.

Created 3 new Immersion rotary haptic products from the ground up: from defining customer requirements to a final product deliverable and continued customer support. Each product involved mechatronic and control system design of rotary motion control hardware. I served as project manager, system architect, and direct technical interface with customer for each.

Filed 8 inventions disclosures and/or patents in 2007, 6 pending patent/invention disclosures for 2008 to date. Presented technology developments both internally to engineering, business development, legal, and marketing teams, as well as externally through direct customer interaction.

Managed product engineering with an overseas production partner to bring their product to market in the US. Conducted on-site evaluation of manufacturing facilities and procedures. Collaborated with partner to complete engineering DVT testing, CE/FCC certification of the product, and create technical literature and product marketing collateral.

Managed direct day-to-day interaction with internal production department and external vendors, including troubleshooting and debug of manufacturing issues, generation and execution of ECOs, writing of production build and test procedures, creation of test fixtures and assembly fixtures.

UC Berkeley Ph.D. Dissertation 2003-2006 Design Methodology and Control Systems for Human ExoskeletonsIn my Ph.D. dissertation work I developed the control system and collaborated on the mechatronics design and construction of the Berkeley Lower Extremity Exoskeleton (BLEEX). BLEEX is an actively powered and controlled human exoskeleton created to allow soldiers to carry large backpack payloads without feeling the weight. BLEEX technology led to the creation of a startup, Berkeley Bionics LLC, and is currently being used to develop advanced active prosthetics.

Created control system for a complex multi-DOF high-powered robot that allowed it to shadow the human operators motion in a seamless and intuitive fashion.

Designed a multi-level hierarchical control strategy to handle local non-linear control of electro-hydraulic and electromechanical actuators as well as rapid large-scale changes in the overall dynamic model of bipedal walking and running.

Designed safety systems (fail-safe and redundancy) at both the software and hardware level to allow a multi-actuator high-powered robotics system to safely operate in intimate contact with the human operator.

RYAN STEGERPH.D., MECHANICAL ENGINEERING

rsteger@gmail.com (510) 717-3547 (mobile)Publications, patents, and references available upon request.

rsteger@gmail.com(510) 717-3547 (mobile)(408) 350-8826 (work)

270 Hazelton Ave.Sunnyvale, CA 94085www.ryansteger.com

OBJECTIVE

CURRENT WORKEXPERIENCE

GRADUATE WORK

Constructed and tested numerous functional prototypes and successfully demonstrated autonomous powered human exoskeleton suits capable of allowing a person to effortlessly carry up to 200 lbs. over arbitrary terrain on missions up to 24 hours in length.

Developed novel mechanical designs for second and third generations of BLEEX that significantly reduce power consumption and incorporate control strategy directly into the mechanical architecture of the robot.

Provided team leadership and project management for between 5 and 25 engineers over the course of a 5 year multi-million dollar project.

UC Berkeley Master of Science Thesis Research, 2001-2003Mechanical and Control Electronics Design for a Force Reflecting Haptic JoystickMy master of science thesis research focused on improving the design and performance of a 3D force-reflecting active haptic joystick based on a direct-drive spherical linkage mechanism.

Designed and tested a compact custom motion controller consisting of a 6-layer mixed analog and digital signal PCB incorporating an 80 MHz FPGA and TI C2000 DSP. This solution provided a significant size and cost reduction over OTS components and allowed the entire control, commutation, and amplification subsystem to be contained in the motor enclosure.

Created an FPGA architecture to perform 3 channels of simultaneous high-speed sinusoidal optical encoder interpolation and sinusoidal brushless DC motor commutation in a compact form factor.

Solved stability issues from previous designs by writing a processor-interrupt based real-time control algorithm in C for the DSP.

Improved upon a patented spherical linkage architecture by passively mass-balancing the structure, removing mechanical singularities from the workspace, and expanding the workspace without affecting the overall envelope.

Produced and commercially sold several copies of the final system, including one delivered to a haptics laboratory at Purdue University.

University of California at Berkeley, 2001 2006Ph.D., Mechanical Engineering, Spring 2006Haas Business School: Management of Technology, Spring 2003M.S., Mechanical Engineering, Spring 2003

Major GPA: 4.0 Ph.D. dissertation: Design Methodology and Control Systems for Human Exoskeletons Advisor: Professor Hami Kazerooni, U.C. Berkeley Research areas: human exoskeletons, human-machine interaction, design methodology,

human factors, robotics, haptics, control theory. Engineering Coursework: Advanced controls, Advanced non-linear controls, MEMs design

and optimization, Robotic system design, Micro/nano robotic design, System identification.

Business Management Coursework: Product design and marketing, Managing the new product development process, Opportunity recognition and entrepreneurship, International trade and competition in high-tech markets, Design as a strategic corporate decision.

Rice University, 1997 2001B.S., Mechanical Engineering, May 2001

GPA: 3.95 Graduated Magna Cum Laude (top 50 students) Presidents Honor Role: 97, 98, 99, 00, 01 Coursework: Mechanics (statics and dynamics), Control system design, Artificial

intelligence programming & design, Computer science, Statistical Process Control (SPC), Advanced finite element analysis, Dynamic system control Fluid mechanics, Structural analysis, Advanced thermodynamics, Heat transfer, Analog and digital electronics, CAD, Architecture history and theory, Cinematography, Photography.

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rsteger@gmail.com (510) 717-3547 (mobile)Publications, portfolio, patents, and references available upon request.

GRADUATE WORK

EDUCATION

R. Steger, H. Kazerooni, The Berkeley Lower Extremity Exoskeleton, ASME Journal of Dynamic Systems Measurement and Control, 2005 (in publication).

L. Huang, R. Steger, H. Kazerooni, Hybrid Control of the Berkeley Lower Extremity Exoskeleton, International Journal of Robotics Research, 2005 (in publication).

L. Huang, R. Steger, H. Kazerooni, Hybrid Control of the Berkeley Lower Extremity Exoskeleton (BLEEX), in Proc. of 2005 ASME Intl. Mechanical Engineering Congress and Exposition, Nov. 5-11, Orlando, FL.

H. Kazerooni, J.-L. Racine, L. Huang, R. Steger, On the Control of the Berkeley Lower Extremity Exoskeleton (BLEEX), IEEE International Conference on Robotics and Automation, April 2005, Barcelona.

R. Steger, K. Lin, B. D. Adelstein, H. Kazerooni, Design of a Passively Balanced Spatial Linkage Haptic Interface, ASME Journal of Mechanical Design, Vol. 126, No. 6, 2004, pp. 984-991.

R. Steger, R. Chung, K. Lin, H. Kazerooni, Design of a Spatial Linkage Haptic Interface, in Proc. of 2004 ASME Intl. Mechanical Engineering Congress and Exposition, Nov. 13-19, Anaheim, CA.

R. Steger, Design and Control of the Berkeley Lower Extremity Exoskeleton, presented to the Systems Engineering Division at Sandia National Laboratory - Livermore, December 2005.

R. Steger, Design of a Statically Balanced 3DOF Haptic Interface: Sinusoidal Encoder Interpolation for High Resolution, presented to the The Eastman Kodak Company - San Diego Systems Division, April 2004.

R. Steger and S. Shaw, Haptics at Berkeley: The NASA-UCB 3DOF Haptic Joystick, presented to the Haptics Interface Research Laboratory, Purdue University, August 2003.

R. Steger, C. Thomas, F. Ghorbel, J. Dabney, Autonomous Robotic Crawler for In-Pipe Inspection U.S. Patent 7,210,364.

(Current filed and pending Immersion Corporation patents excluded)

Berkeley Bionics LLC., 2005, Berkeley CAhttp://www.berkeleyexoworks.com

Founded to manufacture and commercialize the Berkeley Lower Extremity Exoskeleton (BLEEX) by my dissertation advisor, Prof. Hami Kazerooni. My contributions to the project include the first generation system control software and mechanical design for the second and third generation exoskeletons currently in development.

Berkeley-NASA Ames Haptic Joystick, 2003, Berkeley, CAhttp://www.bleex.me.berkeley.edu

As a portion of my master of science project, I developed a commercial version of a 3D haptic interface for virtual environments. This was sold to a haptics and psychophysics lab at Purdue University where it is in active use as a tool for human psychophysics experimentation and research.

itRobotics, Inc., 2004, Houston TXhttp://itrobotics.ath.cx/

Founded by my undergraduate thesis advisor, Prof. Fathi Ghorbel, to commercialize and market a novel pipe-crawling inspection robot I developed and patented for my Rice University senior design thesis. The company currently has twelve employees and is targeting the robotic system for oil industry drill pipe inspection.

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rsteger@gmail.com (510) 717-3547 (mobile)Publications, portfolio, patents, and references available upon request.

PUBLICATIONS

INVITED TALKS

PUBLISHED PATENTS

STARTUPSFOUNDED BASED ON MY WORK

Control system design for a high precision UV laser lithography beam-steering mechanismIndependent consulting project for New Focus Inc. / Bookham Inc., 2005

I performed the simulation, control system design, and software implementation of an algorithm for controlling four laser beam-steering shutters on a UV lithography system. This project involved creating a simulation of the mechanics and dynamics of the beam steering shutters in LabView-CVI and writing the C-based real-time control software to achieve guaranteed time, position, and velocity accuracy.

Design and implementation of a miniature autonomous pipe-crawling robot Rice University, Senior Research Thesis, 2000

I designed, built, and successfully demonstrated an autonomous untethered flexible snake-like micro-robot only two inches in diameter capable of crawling through thousands of feet of pipe while inspecting for damage. An innovative kinematic architecture of my own design allowed a miniaturization that bested state-of-the-art industry solutions by four inches in diameter and resulted in US patent 7,210,364.

Advanced Mechanical Design: Exoskeleton and Human-Machine Design, ME239U.C. Berkeley (graduate): Spring 2006, http://me.berkeley.edu/ME239

Mechatronics Undergraduate Senior Design, ME102U.C. Berkeley: Spring 2005, http://me.berkeley.edu/ME102

Introduction to Electrical Engineering and Mechatronics (aka Lego Lab), ELEC 201Rice University: 1998, 1998, 2000, http://www.owlnet.rice.edu/~elec201

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rsteger@gmail.com (510) 717-3547 (mobile)Publications, portfolio, patents, and references available upon request.

PREVIOUS WORK EXPERIENCE

TEACHING EXPERIENCE

COMPUTERSKILLS

Programming Languages Engineering Administration

Matlab (Simulink, real-time xPC, s-function coding)

Visual C++ (RT code & MFC applications)

TI DSP (C2000 based mo-tion control),

Xilinx FPGA (encoder in terp . and brushless commutation),

LabView, Java, real-time C, Interactive C, Dr. Scheme, FORTRAN 90/95, Pascal.

SolidWorks, PDMWorks,Agile Advantage

Matlab (Simulink, xPC)

COSMOS, MSC Nastran, and MODEL FEA

OptDesX, SDRC IDEAS, OrCAD 9, Xilinx Founda-tion Series.

Windows Server 2003 setup and administration, Active Directory setup and maintenance, Windows 2000 Server, small work-group system administra-tion (10-30 users).

General ubernerd re: Windows XP/2000, Apple OS X, UNIX (Linux), MS Office, Adobe Photoshop CS2 and Illustrator CS2.