Inventor
HIRAYAMA TAKAO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “HIRAYAMA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CHEMICAL CO LTD
10 patentsUS6692793B2Feb 17, 2004
Photo-cured film, and photosensitive element, printed wiring board and semiconductor package using such film
HITACHI CHEMICAL CO LTD16 citations91
US6583198B2Jun 24, 2003
Photo curable resin composition and photosensitive element
HITACHI CHEMICAL CO LTD15 citations91
US6238840B1May 29, 2001
Photosensitive resin composition
HITACHI CHEMICAL CO LTD38 citations91
US6060215AMay 9, 2000
Photosensitive resin composition and application of its photosensitivity
HITACHI CHEMICAL CO LTD22 citations89
US4309330AJan 5, 1982
Copolymer emulsion
HITACHI CHEMICAL CO LTD22 citations78
US5885723AMar 23, 1999
Bonding film for printed circuit boards
HITACHI CHEMICAL CO LTD12 citations71
US4154709AMay 15, 1979
Water-dispersible epoxy modified alkyd resins
HITACHI CHEMICAL CO LTD9 citations71
US4301048ANov 17, 1981
Water-dispersed resin composition
HITACHI CHEMICAL CO LTD18 citations69
US7071243B2Jul 4, 2006
Photo-cured film, and photosensitive element, printed wiring board and semiconductor package using such film
HITACHI CHEMICAL CO LTD3 citations61
US7049036B1May 23, 2006
Photosensitive resin composition, photosensitive element using the same, method for producing resist pattern, resist pattern and substrate having the resist pattern laminated thereon
HITACHI CHEMICAL CO LTD6 citations54