Inventor

YAMAKAWA ICHIRO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “YAMAKAWA ICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EISAI CO LTD

2 patents

US5093200AMar 3, 1992

Multilayer sustained release granule

EISAI CO LTD86 citations94

US5980947ANov 9, 1999

Process for producing drug-containing microspheres by oil-in-water evaporation process

EISAI CO LTD31 citations89

RENESAS ELECTRONICS CORP

1 patent

US11094833B2Aug 17, 2021

Semiconductor device including memory using hafnium and a method of manufacturing the same

RENESAS ELECTRONICS CORP0 citations61

YAMAKAWA ICHIRO

1 patent

US8284364B2Oct 9, 2012

Active matrix display device

YAMAKAWA ICHIRO0 citations43