41 Utility Patents
#20 in Sendai
#11,392 in Japan
#54,632 in the World
Forward Citations = 485
Company Filing History:
Other
Yoshida Kogyo K.k.
Research Development Corporation of Japan
4. 6 out of 8
Tsuyoshi Masumoto
5. 4 out of 5,207

where one patent can have more than one assignee
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