David R. Buchanan, 87, passed away on October 11, 2019. David fought in the Korean War as a United States Marine. He rose to the rank of Sergeant and was awarded the Purple Heart. After his discharge, David attended Bradley University and then University of Iowa where he received a Bachelor of Science Degree for Electrical Engineering. Later he received a Master’s Degree in Electrical Engineering. After earning his degrees, David held a variety of technical and managerial positions including General Dynamics (Atlas Missile Project), Bendix (Project Mercury), Sperry Flight Systems and General Electric. He then entered his entrepreneurial phase of his career, founding and/or investing in technology companies and building them into successful enterprises.  These companies include Peripherals Inc., Talos Systems and Three-Five Systems where David was recognized for bringing LCD manufacturing back to the United States.  David, with his team, also received several patents. David established scholarship programs at University of Iowa, Bradley University, and ASU benefiting aspiring students majoring in engineering. In 1999, University of Iowa presented David with their Distinguished Alumni Award for his pioneering work in technology and business. David is survived by his wife Joan, a daughter, son, sister, niece, two grandchildren, a great grandson and other relatives. A graveside funeral service will be held on Friday, October 18, 2019 at Paradise Memorial Gardens, 9300 E Shea, Scottsdale, Arizona, at 10:00 am. Visitation is Thursday, October 17, 2019 between 5:00-7:00 pm at Messinger Mortuary, 7601 E Indian School Rd, Scottsdale, Arizona.  A Celebration of Life will be held at a later date. David was passionate about helping animals and contributed to many causes dedicated to helping abused and lost pets. Thus, in lieu of flowers, the family asked that donations be made to HARTT online or by check to 747 E. Thunderbird Road Phoenix, AZ 85022. (Source: ASU Foundation)