9 Utility Patents
#17,794 in Tokyo
#95,363 in Japan
#456,432 in the World
Forward Citations = 138
Company Filing History:

Sanwa Kagaku Kenkyusho Co., Ltd.
Secom Co., Ltd.
where one patent can have more than one assignee
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#17,794 in Tokyo
#95,363 in Japan
#456,432 in the World
Company Filing History:

Get your Inventor Badge Today