20 Utility Patents
#83 in Tokorozawa
#35,530 in Japan
#161,562 in the World
Forward Citations = 74
Company Filing History:

Sanyo Electric Co., Ltd.
Victor Company of Japan, Limited
4. 7 out of 42,317
Hitachi, Ltd.
5. 6 out of 847

where one patent can have more than one assignee
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