PHS Seminar was held in the afternoon of April 13 (Wed.), 2005 in the following four sessions. 1. Evolution of the PHS Network By Mr. Koichiro Shimada, Kyocera Corporation 2. ABIT PHS Chipset By Mr. Takeo Hiyama, ABIT Corporation 3. PHS with Ad hoc Networking Function By Prof. Shoji Shinoda, Chuo University, Tokyo, Japan 4. SANYO's Policy to the new PHS Technology Development By Mr. Katsutoshi Kawai, Sanyo Electric Co., Ltd.