Patent Abstracts of Japan; vol. 10, No. 184 (E-415), Jun. 27, 1986 & JP 61 032353 A (Matsushita Electric Ind Co Ltd), Feb. 15, 1986 *abstract*. |
Patent Abstracts of Japan, vol. 1995, No. 04, May 31, 1995 & JP 07 014569 A (Yuasa Corp), Jan. 17, 1995 *abstract*. |
Patent Abstracts of Japan, vol. 009, No. 118 (E-316), May 23, 1985 & JP 60 007058 A (Shinkoube Denki KK), Jan. 14, 1985 *abstract*. |
Patent Abstracts of Japan, vol. 006, No. 099 (E-111), Jun. 8, 1982 & JP 57 032569 A (Matsushita Electric Ind Co Ltd), Feb. 22, 1982 *abstract*. |
Patent Abstracts of Japan, vol. 2000, No. 03, Mar. 30, 2000 & JP 11 345747 A (Hitachi Maxell Ltd), Dec. 14, 1999 *abstract*. |