Inventor
OBARA ISAO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “OBARA ISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS4451551AMay 29, 1984
Radiation-sensitive poly(amic acid) polymer composition
HITACHI LTD43 citations90
US4565767AJan 21, 1986
Light-sensitive polymer composition with poly(amic acid), bisazide, and tertiary amine compound
HITACHI LTD24 citations81
US4239944ADec 16, 1980
Spider of loudspeaker
HITACHI LTD24 citations81
US6087006AJul 11, 2000
Surface-protecting film and resin-sealed semiconductor device having said film
HITACHI LTD10 citations73
US4736012AApr 5, 1988
Semiconductor device
HITACHI LTD13 citations72
US6200831B1Mar 13, 2001
Surface-protecting film and resin-sealed semiconductor device having said film
HITACHI LTD1 citations51