Inventor
HASHIMOTO MASAFUMI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “HASHIMOTO MASAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYODA GOSEI KK
11 patentsUS5408120AApr 18, 1995
Light-emitting device of gallium nitride compound semiconductor
TOYODA GOSEI KK200 citations98
USRE36747EJun 27, 2000
Light-emitting device of gallium nitride compound semiconductor
TOYODA GOSEI KK101 citations97
US6362017B1Mar 26, 2002
Light-emitting semiconductor device using gallium nitride group compound
TOYODA GOSEI KK44 citations96
US5733796AMar 31, 1998
Light-emitting semiconductor device using gallium nitride group compound
TOYODA GOSEI KK77 citations96
US5278433AJan 11, 1994
Light-emitting semiconductor device using gallium nitride group compound with double layer structures for the n-layer and/or the i-layer
TOYODA GOSEI KK86 citations96
US5205905AApr 27, 1993
Dry etching method for semiconductor
TOYODA GOSEI KK49 citations92
US4946548AAug 7, 1990
Dry etching method for semiconductor
TOYODA GOSEI KK36 citations92
US6249012B1Jun 19, 2001
Light emitting semiconductor device using gallium nitride group compound
TOYODA GOSEI KK13 citations82
US6472690B1Oct 29, 2002
Gallium nitride group compound semiconductor
TOYODA GOSEI KK7 citations74
US6830992B1Dec 14, 2004
Method for manufacturing a gallium nitride group compound semiconductor
TOYODA GOSEI KK1 citations52
US6472689B1Oct 29, 2002
Light emitting device
TOYODA GOSEI KK0 citations52
UBE INDUSTRIES
3 patentsUS7186456B2Mar 6, 2007
Easily slidable polyimide film and substrate employing it
UBE INDUSTRIES9 citations73
US8053082B2Nov 8, 2011
Adhesion-enhanced polyimide film, process for its production, and laminated body
UBE INDUSTRIES6 citations61
US10377110B2Aug 13, 2019
Copper clad laminate
UBE INDUSTRIES0 citations45