HW

Hiroyuki Washiyama

PE Pentax: 1 patents #515 of 761Top 70%
OC Orc Manufacturing Co.: 1 patents #32 of 77Top 45%
Overall (All Time): #2,174,662 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7136087 Multi-exposure drawing method and apparatus therefor Takashi Okuyama 2006-11-14
6178028 Multibeam scanning exposure device Masato Noguchi 2001-01-23