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Hiroyuki Doi

JC Jms Co.: 1 patents #2 of 20Top 10%
Sumitomo Electric Industries: 1 patents #1,404 of 3,885Top 40%
Overall (2003): #64,950 of 273,478Top 25%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6657893 Nonvolatile semiconductor memory device and method for driving the same Keita Takahashi, Masafumi Doi, Nobuyuki Tamura, Yasushi Okuda 2003-12-02
6589197 Fluid passage change-over apparatus for medical treatment Kazuhiro Shinmoto, Zyunya Fujii, Seishin Tanaka 2003-07-08