5 Utility Patents
#127 in Ibaraki-ken
#162,610 in Japan
#827,581 in the World
Forward Citations = 38
Company Filing History:

Other

4. 1 out of 1
Natsumra Oil Research Corporation
5. 1 out of 2
Japan Vac's Metal Co., Ltd.
where one patent can have more than one assignee
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