19/05/18 23:06:21.42 fEe8boqB.net
座メッシュの特許を取っている会社はオカムラ製作所のほかざっと見たところ50社以上、山ほどある：
URLﾘﾝｸ(patents.google.com)
一部コピペすれば、
US3197789A * 1961-07-17 1965-08-03 Joseph A Ashkouti Folding furniture
US3235308A 1964-07-27 1966-02-15 Flexible Air Seat Corp Adjustable seat apparatus
US3709559A 1971-03-22 1973-01-09 Rowland David L Furniture for seating people
CA1001966A 1972-04-03 1976-12-21 Clyde R. Porter Friction brake mechanism
CA975281A 1972-11-15 1975-09-30 Melvin A. Textoris Chair base
US4340250A 1976-09-29 1982-07-20 Minnesota Mining And Manufacturing Company Platform rocking chair springs
US4119343A 1977-01-17 1978-10-10 Kroehler Mfg. Co. Platform rocker structure
US4183494A 1978-11-13 1980-01-15 Trendler Metal Products, Inc. Swiveled leaf-spring undercarriage for rocking chair
US4411468A 1981-03-05 1983-10-25 Homecrest Industries Incorporated Rocking chair
DE3119399C2 1981-05-15 1986-04-10 Keiper Recaro Gmbh & Co, 7312 Kirchheim, De
他多数。
この資料でどこにハーマン・ミラー社の座メッシュの優位性が立証できるというの？