P

Inventor

SAWADA MINORU

JP31 patents
⚠️ This page may combine multiple inventors who share the name “SAWADA MINORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SANYO ELECTRIC CO

16 patents
US5404032AApr 4, 1995

Field-effect semiconductor device

SANYO ELECTRIC CO20 citations92
US6023448AFeb 8, 2000

Optical pickup device and optical recording medium driving apparatus comprising the same

SANYO ELECTRIC CO18 citations84
US5650642AJul 22, 1997

Field effect semiconductor device

SANYO ELECTRIC CO18 citations83
US5258632ANov 2, 1993

Velocity modulation transistor

SANYO ELECTRIC CO14 citations74
US6909687B2Jun 21, 2005

Optical pickup with a diffraction element consist of six regions providing spatial variation corresponding to a focas state

SANYO ELECTRIC CO11 citations73
US6212150B1Apr 3, 2001

Optical pickup apparatus and optical recording medium drive employing the same including a first photo receiving element for detecting the state of light beam and a second photo receiving element for reproducing information

SANYO ELECTRIC CO14 citations73
US6181667B1Jan 30, 2001

Optical pickup apparatus capable of suppressing offset of a tracking error signal

SANYO ELECTRIC CO8 citations73
US6144623ANov 7, 2000

Optical pickup apparatus and optical recording medium drive employing the same

SANYO ELECTRIC CO8 citations73
US5751027AMay 12, 1998

Field effect semiconductor device with a low-noise drift layer and a high-power drift layer

SANYO ELECTRIC CO9 citations73
US5724459AMar 3, 1998

Optical modulation device and fiber optic communication system

SANYO ELECTRIC CO16 citations73
US5751029AMay 12, 1998

Field-effect semiconductor device having heterojunction

SANYO ELECTRIC CO9 citations71
US7113316B2Sep 26, 2006

Holographic optical element, position shift detecting apparatus, optical pickup apparatus, optical recording medium drive and method of fabricating holographic optical element

SANYO ELECTRIC CO2 citations62
US6917454B2Jul 12, 2005

Holographic optical element, position shift detecting apparatus, optical pickup apparatus, optical recording medium drive and method of fabricating holographic optical element

SANYO ELECTRIC CO3 citations62
US6501715B2Dec 31, 2002

Optical pickup apparatus employing an adjusting circuit

SANYO ELECTRIC CO2 citations62
US6339563B2Jan 15, 2002

Optical pickup apparatus capable of suppressing offset of a tracking error signal

SANYO ELECTRIC CO4 citations62
US5225895AJul 6, 1993

Velocity-modulation transistor with quantum well wire layer

SANYO ELECTRIC CO1 citations50

BANDAI CO

6 patents

DAINIPPON SCREEN MFG

3 patents

KOMATSU NTC LTD

2 patents

FUJIKURA LTD

1 patent

SEIKO INSTR & ELECTRONICS

1 patent

NONAKA TSUYOSHI

1 patent

FUJITSU LTD

1 patent