23 Utility Patents
#2,046 in Yokohama
#29,905 in Japan
#138,677 in the World
Forward Citations = 131
Company Filing History:

Nihon Yamamura Glass Co., Ltd.
Hitachi Plant Technologies, Ltd.
4. 1 out of 22
Yamamura Glass Co., Ltd.
where one patent can have more than one assignee
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