YI

Yoshiyuki Ishigaki

Mitsubishi Electric: 22 patents #842 of 25,717Top 4%
RT Renesas Technology: 11 patents #212 of 3,337Top 7%
RE Renesas Electronics: 4 patents #1,016 of 4,529Top 25%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
📍 Kawasaki, MO: #3 of 12 inventorsTop 25%
Overall (All Time): #86,819 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
5973548 Internal supply voltage generating circuit for generating internal supply voltage less susceptible to variation of external supply voltage Motomu Ukita 1999-10-26
5841153 SRAM semiconductor device Hirotada Kuriyama, Masahiro Ishida 1998-11-24
5777920 Semiconductor memory device and method of manufacturing the same Kazuhito Tsutsumi 1998-07-07
5731618 Semiconductor device and method of manufacturing thereof 1998-03-24
5659193 Semiconductor device and method for manufacturing the same 1997-08-19
5619056 SRAM semiconductor device Hirotada Kuriyama, Masahiro Ishida 1997-04-08
5600589 Static random access memory Motomu Ukita 1997-02-04
5480816 Method of fabricating a bipolar transistor having a link base Kimiharu Uga, Hiroki Honda, Masahiro Ishida 1996-01-02
5471085 Semiconductor device with polycrystalline silicon emitter conductive layer Hiroki Honda, Kimiharu Uga, Masahiro Ishida 1995-11-28
5355009 Semiconductor device and method of fabricating same Hiroki Honda, Kimiharu Uga, Masahiro Ishida 1994-10-11
5350939 Semiconductor device and method of manufacturing thereof Hiroki Honda, Kimiharu Uga, Masahiro Ishida 1994-09-27
5319234 C-BiCMOS semiconductor device Kimiharu Uga, Hiroki Honda, Masahiro Ishida 1994-06-07
5245209 Semiconductor device including complementary insulating gate field effect transistors and bipolar transistors in semiconductor substrate 1993-09-14