Inventor
FUJIMAKI HIROKAZU
JP13 patents
⚠️ This page may combine multiple inventors who share the name “FUJIMAKI HIROKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
8 patentsUS7205587B2Apr 17, 2007
Semiconductor device and method of producing the same
OKI ELECTRIC IND CO LTD17 citations91
US6780725B2Aug 24, 2004
Method for forming a semiconductor device including forming vertical npn and pnp transistors by exposing the epitaxial layer, forming a monocrystal layer and adjusting the impurity concentration in the epitaxial layer
OKI ELECTRIC IND CO LTD34 citations91
US6709941B2Mar 23, 2004
Method for manufacturing semiconductor device employing solid phase diffusion
OKI ELECTRIC IND CO LTD26 citations91
US6548371B2Apr 15, 2003
Method of forming a groove-like area in a semiconductor device
OKI ELECTRIC IND CO LTD17 citations82
US7285455B2Oct 23, 2007
Method of producing the same
OKI ELECTRIC IND CO LTD9 citations72
US7663241B2Feb 16, 2010
Semiconductor device
OKI ELECTRIC IND CO LTD2 citations61
US7132729B2Nov 7, 2006
Semiconductor device and method of manufacturing same
OKI ELECTRIC IND CO LTD0 citations51
US7026221B2Apr 11, 2006
Method of forming semiconductor device with bipolar transistor having lateral structure
OKI ELECTRIC IND CO LTD0 citations51
LAPIS SEMICONDUCTOR CO LTD
2 patentsUS10497726B2Dec 3, 2019
Semiconductor device having silicon devices in a silicon layer and oxide semiconductor devices in an oxide semiconductor layer of a same chip and semiconductor device manufacturing method
LAPIS SEMICONDUCTOR CO LTD6 citations83
US10734494B2Aug 4, 2020
Semiconductor device and manufacturing method for semiconductor device
LAPIS SEMICONDUCTOR CO LTD0 citations51