HO

Hiroshi Ohsasa

S- S-Tec: 3 patents #20 of 93Top 25%
Overall (All Time): #1,660,551 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5145147 Normally closed-type fluid control valve Akira Nakazawa 1992-09-08
5094430 Control valve Takashi Shirai, Michinori Iwamoto, Tetsuo Shimizu 1992-03-10
4666126 Control valve Kiyoharu Tujimura 1987-05-19