P

Inventor

TSUJI NOBUAKI

JP43 patents
⚠️ This page may combine multiple inventors who share the name “TSUJI NOBUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAHA CORP

28 patents
US6791405B2Sep 14, 2004

Triangular wave generating circuit used in a Class-D amplifier

YAMAHA CORP44 citations93
US7315202B2Jan 1, 2008

Pulse-width modulation amplifier and suppression of clipping therefor

YAMAHA CORP24 citations92
US6826215B2Nov 30, 2004

Laser diode driving circuit

YAMAHA CORP23 citations91
US7948313B2May 24, 2011

Class D amplifier circuit

YAMAHA CORP14 citations84
US7679435B2Mar 16, 2010

Digital input class-D amplifier

YAMAHA CORP16 citations84
US7183818B2Feb 27, 2007

Triangular wave generating circuit adapted to class-D amplifier

YAMAHA CORP15 citations84
US6778011B2Aug 17, 2004

Pulse-width modulation circuit and power amplifier circuit

YAMAHA CORP17 citations84
US6608505B2Aug 19, 2003

Ouput buffer circuit

YAMAHA CORP19 citations84
US6448856B2Sep 10, 2002

Electronic volume circuit

YAMAHA CORP15 citations84
US6291835B1Sep 18, 2001

Semiconductor device

YAMAHA CORP15 citations84
US7924089B2Apr 12, 2011

Offset voltage correction circuit and class D amplifier

YAMAHA CORP7 citations83
US7920082B2Apr 5, 2011

D/A converter circuit and digital input class-D amplifier

YAMAHA CORP16 citations83
US7816992B2Oct 19, 2010

Offset voltage correction circuit and class D amplifier

YAMAHA CORP11 citations83
US5391920AFeb 21, 1995

Semiconductor device having peripheral metal wiring

YAMAHA CORP18 citations82
US5654571AAug 5, 1997

Semiconductor device

YAMAHA CORP8 citations74
US6847059B2Jan 25, 2005

Semiconductor input protection circuit

YAMAHA CORP8 citations71
US7298855B2Nov 20, 2007

Volume circuit using resistive ladder circuits

YAMAHA CORP7 citations66
US6384632B2May 7, 2002

Buffer circuit

YAMAHA CORP6 citations63
US7830182B2Nov 9, 2010

Comparator

YAMAHA CORP5 citations62
US12225361B2Feb 11, 2025

Sound signal processing device, sound system, and computer-implemented method

YAMAHA CORP0 citations60
US6894320B2May 17, 2005

Input protection circuit

YAMAHA CORP5 citations59
US5804857ASep 8, 1998

Semiconductor device with element window defined by closed loop conductor

YAMAHA CORP1 citations52
US7990211B2Aug 2, 2011

Class D amplifier circuit

YAMAHA CORP1 citations51
US7075123B2Jul 11, 2006

Semiconductor input protection circuit

YAMAHA CORP1 citations50
US6903577B2Jun 7, 2005

Delay circuit

YAMAHA CORP1 citations50
US6903607B2Jun 7, 2005

Operational amplifier

YAMAHA CORP1 citations50
US7982522B2Jul 19, 2011

Semiconductor integrated circuit for realizing an amplifier having ringing reduction circuitry

YAMAHA CORP0 citations42
US7912112B2Mar 22, 2011

Spectrum spreading circuit

YAMAHA CORP0 citations41

KONISHIROKU PHOTO IND

7 patents

MURATA MANUFACTURING CO

3 patents

TSUJI NOBUAKI

2 patents

KONICA MINOLTA MED & GRAPHIC

1 patent

KAWAGISHI NORIHIRO

1 patent

TANAKA YASUOMI

1 patent