27 Utility Patents
#1,682 in Yokohama
#22,730 in Japan
#104,848 in the World
Forward Citations = 178
Company Filing History:
Nhk Spring Co., Ltd.


4. 2 out of 242
Ohi Seisakusho Co., Ltd.
5. 1 out of 21
Kurabe Industrial Co., Ltd.
where one patent can have more than one assignee
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