34 Utility Patents
#21 in Takasaki
#15,462 in Japan
#71,538 in the World
Forward Citations = 153
Company Filing History:

Hitachi Tobu Semiconductor

4. 5 out of 336
Hitachi Ulsi Systems Co., Ltd.
5. 3 out of 830,757 patents
Other
where one patent can have more than one assignee
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