16 Utility Patents
#9,509 in Tokyo
#49,065 in Japan
#227,887 in the World
Forward Citations = 85
Company Filing History:
Oki Electric Industry Co., Ltd.

Nikkan Industries Co., Ltd.
4. 2 out of 16
Kyushu Refractories Co., Ltd.
5. 1 out of 7
Ikebukuro Horo Kogyo Co., Ltd.
where one patent can have more than one assignee
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