Inventor
SAKURAI TETSUO
JP36 patents
⚠️ This page may combine multiple inventors who share the name “SAKURAI TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
9 patentsUS6628424B2Sep 30, 2003
Digital synthesizer digital copier and magnification control unit
RICOH KK15 citations84
US6147776ANov 14, 2000
Apparatus for controlling a scanning speed of an image scanner
RICOH KK17 citations81
US4183653AJan 15, 1980
Sheet stripper for an electrostatographic apparatus
RICOH KK23 citations81
US6515767B1Feb 4, 2003
Digital synthesizer, digital copier and magnification control unit
RICOH KK10 citations74
US5200837AApr 6, 1993
Digital copier including means for erasing digital image data over a given area, especially suitable for preventing jamming of paper
RICOH KK11 citations74
US5119211AJun 2, 1992
Image reader for an image forming apparatus
RICOH KK14 citations74
US5172244ADec 15, 1992
Digital copier
RICOH KK9 citations73
US5051839ASep 24, 1991
Digital copier
RICOH KK12 citations73
US3992089ANov 16, 1976
Reader-printer apparatus with multiple supply rolls and charging devices
RICOH KK15 citations72
SHOWA DENKO KK
7 patentsUS6852161B2Feb 8, 2005
Method of fabricating group-iii nitride semiconductor crystal, method of fabricating gallium nitride-based compound semiconductor, gallium nitride-based compound semiconductor, gallium nitride-based compound semiconductor light-emitting device, and light source using the semiconductor light-emitting device
SHOWA DENKO KK31 citations91
US7601979B2Oct 13, 2009
Gallium nitride-based compound semiconductor multilayer structure and production method thereof
SHOWA DENKO KK6 citations63
US7482635B2Jan 27, 2009
Gallium nitride-based compound semiconductor multilayer structure and production method thereof
SHOWA DENKO KK4 citations62
US7855386B2Dec 21, 2010
N-type group III nitride semiconductor layered structure
SHOWA DENKO KK2 citations60
US12305074B2May 20, 2025
Corrosion-resistant member
SHOWA DENKO KK0 citations57
US7781795B2Aug 24, 2010
Group III nitride semiconductor device and light-emitting device using the same
SHOWA DENKO KK0 citations52
US7858419B2Dec 28, 2010
Gallium nitride-based compound semiconductor multilayer structure and production method thereof
SHOWA DENKO KK0 citations51
SAKURAI TETSUO
5 patentsUS5105286AApr 14, 1992
Image reading apparatus
SAKURAI TETSUO9 citations72
US8591656B2Nov 26, 2013
Compound semiconductor manufacturing device, compound semiconductor manufacturing method, and jig for manufacturing compound semiconductor
SAKURAI TETSUO1 citations51
US8580592B2Nov 12, 2013
Method for manufacturing semiconductor light emitting element, and semiconductor light emitting element
SAKURAI TETSUO0 citations51
US8913115B2Dec 16, 2014
Irradiation time control imaging device and irradiation time control endoscope device
SAKURAI TETSUO0 citations39
US8648901B2Feb 11, 2014
Imaging apparatus, imaging method and endoscope apparatus
SAKURAI TETSUO0 citations32