MH

Masahiro Hirakawa

SC Sumitomo Precision Products Co.: 2 patents #43 of 199Top 25%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Ibaraki, JP: #3,280 of 6,779 inventorsTop 50%
Overall (All Time): #2,286,641 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5413769 Clad fine wire electrode-type activated species-generating apparatus Sachiko Okazaki, Masuhiro Kogoma, Kazuo Kasai 1995-05-09
5316639 Dielectric material used for an ozone generator and a method of forming a film to the dielectric material Sachiko Okazaki, Masuhiro Kogoma 1994-05-31