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Hajime Hori
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Kitakyushu, JP
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last 30 patents
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Patent Grant
Working environment density measuring method
Patent number
6,014,888
Issue date
Jan 18, 2000
Ricoh Company, Ltd.
Yuji Noritake
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Solid material collector with detector
Patent number
5,861,053
Issue date
Jan 19, 1999
Ricoh Company, Ltd.
Yuji Noritake
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL