WO9204496-A  "Novel Cell" Vol. 2, edited by Shiro Yoshizawa, 17, 18 10 September 1979 (10. 09. 79), The Publishing Office of Tokyo Denki University, p. 213-216.;  See also references of EPA 0499639;  See also references of EP 0499639A1EP499639-A1  DATABASE WPIL Week 8705, Derwent Publications Ltd., London, GB; AN 87-033916 & JP-A-61 291 414 (TOSHIBA CERAMICS KK) 22 December 1986;  DATABASE WPIL Week 8831, Derwent Publications Ltd., London, GB; AN 88-216237 & JP-A-63 151 614 (KYUSHU TAIKA RENGA) 24 June 1988;  DATABASE WPIL Week 9043, Derwent Publications Ltd., London, GB; AN 90-325072 & JP-A-2 233 519 (ISHIKAWAJIMA-HARIMA JUKO) 17 September 1990;  DATABASE WPIL Week 9050, Derwent Publications Ltd., London, GB; AN 90-373483 & JP-A-2 271 911 (ISHIKAWAJIMA HARIMA HEAVY IND.) 6 November 1990;  See also references of WOA 9204496;  DATABASE WPIL Week 9050, Derwent Publications Ltd., London, GB; AN 90-373483&JP-A-2 271 911 (ISHIKAWAJIMA HARIMA HEAVY IND.) 6 November 1990;  DATABASE WPIL Week 9043, Derwent Publications Ltd., London, GB; AN 90-325072&JP-A-2 233 519 (ISHIKAWAJIMA-HARIMA JUKO) 17 September 1990;  DATABASE WPIL Week 8705, Derwent Publications Ltd., London, GB; AN 87-033916&JP-A-61 291 414 (TOSHIBA CERAMICS KK) 22 December 1986;  DATABASE WPIL Week 8831, Derwent Publications Ltd., London, GB; AN 88-216237&JP-A-63 151 614 (KYUSHU TAIKA RENGA) 24 June 1988;  See also references of WO 9204496A1EP499639-A4  DATABASE WPIL Week 9050, Derwent Publications Ltd., London, GB; AN 90-373483 & JP-A-2 271 911 (ISHIKAWAJIMA HARIMA HEAVY IND.) 6 November 1990;  DATABASE WPIL Week 9043, Derwent Publications Ltd., London, GB; AN 90-325072 & JP-A-2 233 519 (ISHIKAWAJIMA-HARIMA JUKO) 17 September 1990;  DATABASE WPIL Week 8705, Derwent Publications Ltd., London, GB; AN 87-033916 & JP-A-61 291 414 (TOSHIBA CERAMICS KK) 22 December 1986;  DATABASE WPIL Week 8831, Derwent Publications Ltd., London, GB; AN 88-216237 & JP-A-63 151 614 (KYUSHU TAIKA RENGA) 24 June 1988;  See also references of WO 9204496A1