HF

Hirokazu Fujimaki

OC Oki Electric Industry Co.: 8 patents #196 of 2,807Top 7%
LC Lapis Semiconductor Co.: 2 patents #112 of 349Top 35%
OC Oki Semiconductor Co.: 2 patents #109 of 526Top 25%
PM Powerchip Semiconductor Manufacturing: 1 patents #85 of 193Top 45%
Overall (All Time): #359,192 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12199179 LDMOS with polysilicon deep drain Bo-An Tsai, Shih-Ping Lee 2025-01-14
10734494 Semiconductor device and manufacturing method for semiconductor device Koichi Kaneko 2020-08-04
10497726 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 Koichi Kaneko 2019-12-03
8278198 Semiconductor device and method of producing the same Yuuki Doi 2012-10-02
7902884 H-bridge circuit Miyuki Kanai, Takeshi Shimizu 2011-03-08
7663241 Semiconductor device 2010-02-16
7285455 Method of producing the same 2007-10-23
7205587 Semiconductor device and method of producing the same 2007-04-17
7132729 Semiconductor device and method of manufacturing same 2006-11-07
7026221 Method of forming semiconductor device with bipolar transistor having lateral structure 2006-04-11
6780725 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 2004-08-24
6709941 Method for manufacturing semiconductor device employing solid phase diffusion 2004-03-23
6548371 Method of forming a groove-like area in a semiconductor device 2003-04-15