8 Utility Patents
#19,807 in Tokyo
#107,188 in Japan
#519,351 in the World
Forward Citations = 70
Company Filing History:

Other

4. 1 out of 2
Aoyama Seisakusho Ibaraki Plant Co., Ltd.
5. 1 out of 8
Nagano Keiki Seisakusho, Ltd.
where one patent can have more than one assignee
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