Acoustical Society of Japan 2018 Spring Meeting Organizer: Acoustical Society of Japan (http://www.asj.gr.jp/) Date: Thursday, March 15, 2018 Venue: Miyashiro Campus, Nippon Institute of Technology Presenter: Jiromaru Tsujino Content of Presentation: 【3-10-6】 Ultrasonic Compound Vibration Welding with Various Interchangeable Welding Tips【.3-Q-18】 Ultrasonic Combined Vibration Welding Using Long and Thin Welding Tips .Thank you very much for coming and listening to the presentation by Dr. Tsujino, the inventor of "Ultrasonic Combined Vibration Technology" and our Chairman of the Board.