13 Utility and 2 Design Patents
#12,207 in Tokyo
#63,483 in Japan
#297,277 in the World
rank by utility patentsForward Citations = 234
Company Filing History:

Tomy Seiko Co., Ltd.
Hitachi Engineering Co., Ltd.
4. 1 out of 832,627 patents
Other
5. 1 out of 153
Hitachi-ge Nuclear Energy, Ltd.
where one patent can have more than one assignee
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