EP1241717-A2  PATENT ABSTRACTS OF JAPAN vol. 010, no. 108 (E-398), 23 April 1986 (1986-04-23) & JP 60 246557 A (MATSUSHITA DENKI SANGYO KK), 6 December 1985 (1985-12-06);  PATENT ABSTRACTS OF JAPAN vol. 010, no. 108 (E-398), 23 April 1986 (1986-04-23) &amp; JP 60 246557 A (MATSUSHITA DENKI SANGYO KK), 6 December 1985 (1985-12-06);  PATENT ABSTRACTS OF JAPAN vol. 010, no. 340 (E-455), 18 November 1986 (1986-11-18) & JP 61 143935 A (MATSUSHITA ELECTRIC IND CO LTD), 1 July 1986 (1986-07-01);  PATENT ABSTRACTS OF JAPAN vol. 010, no. 340 (E-455), 18 November 1986 (1986-11-18) &amp; JP 61 143935 A (MATSUSHITA ELECTRIC IND CO LTD), 1 July 1986 (1986-07-01);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 168 (E-611), 20 May 1988 (1988-05-20) & JP 62 281262 A (SHIN KOBE ELECTRIC MACH CO LTD), 7 December 1987 (1987-12-07);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 168 (E-611), 20 May 1988 (1988-05-20) &amp; JP 62 281262 A (SHIN KOBE ELECTRIC MACH CO LTD), 7 December 1987 (1987-12-07);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 328 (E-654), 6 September 1988 (1988-09-06) & JP 63 091952 A (JAPAN STORAGE BATTERY CO LTD), 22 April 1988 (1988-04-22);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 328 (E-654), 6 September 1988 (1988-09-06) &amp; JP 63 091952 A (JAPAN STORAGE BATTERY CO LTD), 22 April 1988 (1988-04-22);  PATENT ABSTRACTS OF JAPAN vol. 014, no. 489 (E-0994), 24 October 1990 (1990-10-24) & JP 02 201869 A (MATSUSHITA ELECTRIC IND CO LTD), 10 August 1990 (1990-08-10);  PATENT ABSTRACTS OF JAPAN vol. 014, no. 489 (E-0994), 24 October 1990 (1990-10-24) &amp; JP 02 201869 A (MATSUSHITA ELECTRIC IND CO LTD), 10 August 1990 (1990-08-10)EP1241717-B1  PATENT ABSTRACTS OF JAPAN vol. 010, no. 108 (E-398), 23 April 1986 (1986-04-23) &amp; JP 60 246557 A (MATSUSHITA DENKI SANGYO KK), 6 December 1985 (1985-12-06);  PATENT ABSTRACTS OF JAPAN vol. 010, no. 340 (E-455), 18 November 1986 (1986-11-18) &amp; JP 61 143935 A (MATSUSHITA ELECTRIC IND CO LTD), 1 July 1986 (1986-07-01);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 168 (E-611), 20 May 1988 (1988-05-20) &amp; JP 62 281262 A (SHIN KOBE ELECTRIC MACH CO LTD), 7 December 1987 (1987-12-07);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 328 (E-654), 6 September 1988 (1988-09-06) &amp; JP 63 091952 A (JAPAN STORAGE BATTERY CO LTD), 22 April 1988 (1988-04-22);  PATENT ABSTRACTS OF JAPAN vol. 014, no. 489 (E-0994), 24 October 1990 (1990-10-24) &amp; JP 02 201869 A (MATSUSHITA ELECTRIC IND CO LTD), 10 August 1990 (1990-08-10)EP1241717-B8  PATENT ABSTRACTS OF JAPAN vol. 010, no. 108 (E-398), 23 April 1986 (1986-04-23) &amp; JP 60 246557 A (MATSUSHITA DENKI SANGYO KK), 6 December 1985 (1985-12-06);  PATENT ABSTRACTS OF JAPAN vol. 010, no. 340 (E-455), 18 November 1986 (1986-11-18) &amp; JP 61 143935 A (MATSUSHITA ELECTRIC IND CO LTD), 1 July 1986 (1986-07-01);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 168 (E-611), 20 May 1988 (1988-05-20) &amp; JP 62 281262 A (SHIN KOBE ELECTRIC MACH CO LTD), 7 December 1987 (1987-12-07);  PATENT ABSTRACTS OF JAPAN vol. 012, no. 328 (E-654), 6 September 1988 (1988-09-06) &amp; JP 63 091952 A (JAPAN STORAGE BATTERY CO LTD), 22 April 1988 (1988-04-22);  PATENT ABSTRACTS OF JAPAN vol. 014, no. 489 (E-0994), 24 October 1990 (1990-10-24) &amp; JP 02 201869 A (MATSUSHITA ELECTRIC IND CO LTD), 10 August 1990 (1990-08-10)