IO

Isao Obara

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
HC Hitachi Chemical Company: 2 patents #701 of 1,946Top 40%
Overall (All Time): #883,228 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6200831 Surface-protecting film and resin-sealed semiconductor device having said film Jun Tanaka, Fumio Kataoka, Haruhiko Kikkawa, Keiko Isoda 2001-03-13
6087006 Surface-protecting film and resin-sealed semiconductor device having said film Jun Tanaka, Fumio Kataoka, Haruhiko Kikkawa, Keiko Isoda 2000-07-11
4736012 Semiconductor device Fusaji Shoji, Akihiro Kenmotsu, Hitoshi Yokono, Takeshi Komaru 1988-04-05
4565767 Light-sensitive polymer composition with poly(amic acid), bisazide, and tertiary amine compound Fumio Kataoka, Fusaji Shoji, Issei Takemoto, Hitoshi Yokono, Tokio Isogai +1 more 1986-01-21
4451551 Radiation-sensitive poly(amic acid) polymer composition Fumio Kataoka, Fusaji Shoji, Hitoshi Yokono, Tokio Isogai, Mitumasa Kojima 1984-05-29
4239944 Spider of loudspeaker Atsuya Kamada, Aizo Kaneda 1980-12-16