TO

Toshiaki Okuyama

HI Hitachi: 2 patents #771 of 3,950Top 20%
Overall (2002): #37,419 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6496397 Inverter device Keijiro Sakai, Kinya Nakatsu, Seiji Ishida, Hiroshi Fujii, Junji Kato +1 more 2002-12-17
6344726 Method of controlling an induction motor Kazuaki Tobari 2002-02-05