HY

Hirohisa Yamamura

HI Hitachi: 2 patents #771 of 3,950Top 20%
Overall (2002): #61,969 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6414867 Power inverter Osamu Suzuki, Heikichi Kuwabara, Akio Yasukawa, Mitsuyuki Hombu, Sanshirou Obara +1 more 2002-07-02
6410978 Semiconductor device Akio Yasukawa, Tatsuya Shigemura 2002-06-25